diff --git a/core/src/main/resources/org/apache/spark/ui/static/historypage-template.html b/core/src/main/resources/org/apache/spark/ui/static/historypage-template.html
index a780459fee1f4..0f1ff9cd0c640 100644
--- a/core/src/main/resources/org/apache/spark/ui/static/historypage-template.html
+++ b/core/src/main/resources/org/apache/spark/ui/static/historypage-template.html
@@ -16,6 +16,14 @@
 -->
 
 <script id="history-summary-template" type="text/html">
+<div class="row" style="margin-bottom: 10px;">
+  <div class="col-md-12">
+    <label for="log-path-filter" style="margin-right: 10px;">Filter by Log Source:</label>
+    <select id="log-path-filter" class="form-control" style="display: inline-block; width: auto;">
+      <option value="">All Sources</option>
+    </select>
+  </div>
+</div>
 <table id="history-summary-table" class="table table-striped compact">
   <thead>
     <tr>
@@ -34,6 +42,11 @@
           App Name
         </span>
       </th>
+      <th>
+        <span data-toggle="tooltip" data-placement="top" title="Log directory where this application's event log is stored.">
+          Log Source
+        </span>
+      </th>
       {{#hasMultipleAttempts}}
       <th>
         <span data-bs-toggle="tooltip" data-bs-placement="top" title="The attempt ID of this application since one application might be launched several times">
diff --git a/core/src/main/resources/org/apache/spark/ui/static/historypage.js b/core/src/main/resources/org/apache/spark/ui/static/historypage.js
index 20734eb69e578..4813ff8582450 100644
--- a/core/src/main/resources/org/apache/spark/ui/static/historypage.js
+++ b/core/src/main/resources/org/apache/spark/ui/static/historypage.js
@@ -188,6 +188,7 @@ $(document).ready(function() {
       var startedColumnName = 'started';
       var completedColumnName = 'completed';
       var durationColumnName = 'duration';
+      var logPathColumnName = 'logPath';
       var conf = {
         "data": array,
         "columns": [
@@ -203,6 +204,18 @@ $(document).ready(function() {
             data: 'name',
             render: (name) => stringAbbreviate(name, 60)
           },
+          {
+            name: logPathColumnName,
+            data: 'logSourceName',
+            render: (logSourceName, type, row) => {
+              if (logSourceName && row && row.logSourceFullPath) {
+                const safeName = escapeHtml(logSourceName);
+                const safePath = escapeHtml(row.logSourceFullPath);
+                return `<span title="${safePath}">${safeName}</span>`;
+              }
+              return '';
+            }
+          },
           {
             name: attemptIdColumnName,
             data: 'attemptId',
@@ -230,7 +243,7 @@ $(document).ready(function() {
         ],
         "aoColumnDefs": [
           {
-            aTargets: [0, 1, 2],
+            aTargets: [0, 1, 2, 3],
             fnCreatedCell: (nTd, _ignored_sData, _ignored_oData, _ignored_iRow, _ignored_iCol) => {
               if (hasMultipleAttempts) {
                 $(nTd).css('background-color', '#fff');
@@ -246,7 +259,8 @@ $(document).ready(function() {
         conf.rowsGroup = [
           'appId:name',
           'version:name',
-          'appName:name'
+          'appName:name',
+          'logPath:name'
         ];
       } else {
         conf.columns = removeColumnByName(conf.columns, attemptIdColumnName);
@@ -263,8 +277,41 @@ $(document).ready(function() {
         {"searchable": false, "targets": [getColumnIndex(conf.columns, durationColumnName)]}
       ];
       historySummary.append(apps);
-      apps.DataTable(conf);
+      var dataTable = apps.filter("table").DataTable(conf);
       sibling.after(historySummary);
+
+      // Populate log path filter dropdown
+      var logPathNames = new Set();
+      array.forEach(function(row) {
+        if (row.logSourceName) {
+          logPathNames.add(row.logSourceName);
+        }
+      });
+
+      var logPathFilter = $('#log-path-filter');
+      Array.from(logPathNames).sort().forEach(function(name) {
+        logPathFilter.append($('<option></option>').val(name).text(name));
+      });
+
+      // Add custom filter function
+      $.fn.dataTable.ext.search.push(function(settings, data, dataIndex, rowData) {
+        if (settings.nTable.id !== 'history-summary-table') {
+          return true; // Don't filter other tables
+        }
+        var selectedPath = logPathFilter.val();
+        if (!selectedPath) {
+          return true; // Show all if no filter selected
+        }
+        return rowData && typeof rowData.logSourceName === 'string' &&
+               rowData.logSourceName === selectedPath;
+      });
+
+      // Trigger filter on dropdown change
+      logPathFilter.on('change', function() {
+        dataTable.draw();
+      });
+
+      $('#history-summary [data-toggle="tooltip"]').tooltip();
     });
   });
 });
diff --git a/core/src/main/scala/org/apache/spark/deploy/history/FsHistoryProvider.scala b/core/src/main/scala/org/apache/spark/deploy/history/FsHistoryProvider.scala
index c723a8de8c442..47aaf4c93fcd8 100644
--- a/core/src/main/scala/org/apache/spark/deploy/history/FsHistoryProvider.scala
+++ b/core/src/main/scala/org/apache/spark/deploy/history/FsHistoryProvider.scala
@@ -106,7 +106,12 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
   // Number of threads used to compact rolling event logs.
   private val numCompactThreads = conf.get(History.NUM_COMPACT_THREADS)
 
-  private val logDir = conf.get(History.HISTORY_LOG_DIR)
+  private val logDirs = conf.get(History.HISTORY_LOG_DIR)
+    .split(",").map(_.trim).filter(_.nonEmpty).toSeq
+  require(logDirs.nonEmpty, "spark.history.fs.logDirectory must specify at least one directory.")
+
+  // For backward compatibility, keep logDir pointing to the first directory.
+  private val logDir = logDirs.head
 
   private val historyUiAclsEnable = conf.get(History.HISTORY_SERVER_UI_ACLS_ENABLE)
   private val historyUiAdminAcls = conf.get(History.HISTORY_SERVER_UI_ADMIN_ACLS)
@@ -122,6 +127,43 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
   // Visible for testing
   private[history] val fs: FileSystem = new Path(logDir).getFileSystem(hadoopConf)
 
+  // Map from logDir to its FileSystem, for multi-path support.
+  // Visible for testing
+  private[history] val logDirFs: Map[String, FileSystem] = logDirs.map { dir =>
+    dir -> new Path(dir).getFileSystem(hadoopConf)
+  }.toMap
+
+  // Map from logDir to display name for UI
+  private val logDirToDisplayName: Map[String, String] = {
+    val names = conf.get(HISTORY_LOG_DIR_NAMES).map(_.split(",", -1).map(_.trim))
+    names match {
+      case Some(n) if n.length == logDirs.length =>
+        val mapping = logDirs.zip(n).map { case (dir, name) =>
+          dir -> (if (name.nonEmpty) name else dir)
+        }
+        val displayNames = mapping.map(_._2)
+        val duplicates = displayNames.groupBy(identity).filter(_._2.size > 1).keys
+        require(duplicates.isEmpty,
+          s"Duplicate display names found in ${HISTORY_LOG_DIR_NAMES.key}: " +
+            s"${duplicates.mkString(", ")}")
+        mapping.toMap
+      case Some(n) =>
+        logWarning(s"${HISTORY_LOG_DIR_NAMES.key} has ${n.length} names but " +
+          s"${logDirs.length} directories were specified. Falling back to full paths.")
+        logDirs.map(d => d -> d).toMap
+      case None =>
+        logDirs.map(d => d -> d).toMap
+    }
+  }
+
+  // Normalized logDir paths for efficient and safe matching
+  private val normalizedLogDirs: Seq[(Path, String, String)] = logDirs.map { dir =>
+    val path = new Path(dir)
+    val dirFs = logDirFs(dir)
+    val normalized = path.makeQualified(dirFs.getUri, dirFs.getWorkingDirectory)
+    (normalized, logDirToDisplayName(dir), dir)
+  }.sortBy(-_._1.depth()) // Sort by depth descending for longest prefix match
+
   // Used by check event thread and clean log thread.
   // Scheduled thread pool size must be one, otherwise it will have concurrent issues about fs
   // and applications between check task and clean task.
@@ -154,8 +196,15 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
     memoryManager = new HistoryServerMemoryManager(conf)
   }
 
-  private val fileCompactor = new EventLogFileCompactor(conf, hadoopConf, fs,
-    conf.get(EVENT_LOG_ROLLING_MAX_FILES_TO_RETAIN), conf.get(EVENT_LOG_COMPACTION_SCORE_THRESHOLD))
+  private val fileCompactors: Map[String, EventLogFileCompactor] = logDirFs.map {
+    case (dir, dirFs) =>
+      dir -> new EventLogFileCompactor(conf, hadoopConf, dirFs,
+        conf.get(EVENT_LOG_ROLLING_MAX_FILES_TO_RETAIN),
+        conf.get(EVENT_LOG_COMPACTION_SCORE_THRESHOLD))
+  }
+
+  // For backward compatibility
+  private val fileCompactor = fileCompactors(logDir)
 
   // Used to store the paths, which are being processed. This enable the replay log tasks execute
   // asynchronously and make sure that checkForLogs would not process a path repeatedly.
@@ -276,21 +325,33 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
       memoryManager.initialize()
     }
 
-    // Validate the log directory.
-    val path = new Path(logDir)
-    try {
-      if (!fs.getFileStatus(path).isDirectory) {
-        throw new IllegalArgumentException(
-          "Logging directory specified is not a directory: %s".format(logDir))
-      }
-    } catch {
-      case f: FileNotFoundException =>
-        var msg = s"Log directory specified does not exist: $logDir"
-        if (logDir == DEFAULT_LOG_DIR) {
-          msg += " Did you configure the correct one through spark.history.fs.logDirectory?"
+    // Validate the log directories at startup.
+    // Invalid directories are logged as warnings but not removed from logDirs;
+    // checkForLogsInDir already handles per-directory errors with try-catch.
+    // We only fail if ALL directories are invalid.
+    val validDirs = logDirs.filter { dir =>
+      val path = new Path(dir)
+      val dirFs = logDirFs(dir)
+      try {
+        if (!dirFs.getFileStatus(path).isDirectory) {
+          logWarning(log"Logging directory specified is not a directory: " +
+            log"${MDC(HISTORY_DIR, dir)}, skipping.")
+          false
+        } else {
+          true
         }
-        throw new FileNotFoundException(msg).initCause(f)
+      } catch {
+        case f: FileNotFoundException =>
+          var msg = s"Log directory specified does not exist: $dir"
+          if (dir == DEFAULT_LOG_DIR) {
+            msg += " Did you configure the correct one through spark.history.fs.logDirectory?"
+          }
+          logWarning(msg)
+          false
+      }
     }
+    require(validDirs.nonEmpty,
+      s"None of the specified log directories exist: ${logDirs.mkString(", ")}")
 
     // Disable the background thread during tests.
     if (!conf.contains(IS_TESTING)) {
@@ -402,11 +463,14 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
     : ApplicationInfoWrapper = {
     val date = new Date(0)
     val lastUpdate = new Date()
+    val (logSourceName, logSourceFullPath) = getLogDirInfo(logPath)
     val info = ApplicationAttemptInfo(
-      attemptId, date, date, lastUpdate, 0, "spark", false, "unknown")
+      attemptId, date, date, lastUpdate, 0, "spark", false, "unknown",
+      Some(logSourceName), Some(logSourceFullPath))
     addListing(new ApplicationInfoWrapper(
       ApplicationInfo(appId, appId, None, None, None, None, List.empty),
-      List(new AttemptInfoWrapper(info, logPath, 0, Some(1), None, None, None, None))))
+      List(new AttemptInfoWrapper(info, logPath, 0, Some(1), None, None, None, None,
+        logSourceName, logSourceFullPath))))
     load(appId)
   }
 
@@ -432,7 +496,10 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
     } else {
       Map()
     }
-    Map("Event log directory" -> logDir) ++ safeMode ++ driverLog
+    Map("Event log directory" -> logDirs.map { dir =>
+      val name = logDirToDisplayName(dir)
+      if (name != dir) s"$name ($dir)" else dir
+    }.mkString(", ")) ++ safeMode ++ driverLog
   }
 
   override def start(): Unit = {
@@ -499,18 +566,53 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
    * from running for too long which blocks updating newly appeared eventlog files.
    */
   private[history] def checkForLogs(): Unit = {
+    val newLastScanTime = clock.getTimeMillis()
+    val allNotStale = mutable.HashSet[String]()
+
+    logDirs.foreach { dir =>
+      try {
+        checkForLogsInDir(dir, newLastScanTime, allNotStale)
+      } catch {
+        case e: Exception =>
+          logError(log"Error checking for logs in directory ${MDC(HISTORY_DIR, dir)}", e)
+      }
+    }
+
+    // Delete all information about applications whose log files disappeared from storage.
+    // This is done after scanning ALL directories to avoid incorrectly marking entries from
+    // other directories as stale.
+    val stale = listing.synchronized {
+      KVUtils.viewToSeq(listing.view(classOf[LogInfo])
+        .index("lastProcessed")
+        .last(newLastScanTime - 1))
+    }
+    stale.filterNot(isProcessing)
+      .filterNot(info => allNotStale.contains(info.logPath))
+      .foreach { log =>
+        log.appId.foreach { appId =>
+          cleanAppData(appId, log.attemptId, log.logPath)
+          listing.delete(classOf[LogInfo], log.logPath)
+        }
+      }
+
+    lastScanTime.set(newLastScanTime)
+  }
+
+  private def checkForLogsInDir(
+      dir: String,
+      newLastScanTime: Long,
+      notStale: mutable.HashSet[String]): Unit = {
+    val dirFs = logDirFs(dir)
     var count: Int = 0
     try {
-      val newLastScanTime = clock.getTimeMillis()
-      logDebug(log"Scanning ${MDC(HISTORY_DIR, logDir)} with " +
+      logDebug(log"Scanning ${MDC(HISTORY_DIR, dir)} with " +
         log"lastScanTime=${MDC(LAST_SCAN_TIME, lastScanTime)}")
 
       // Mark entries that are processing as not stale. Such entries do not have a chance to be
       // updated with the new 'lastProcessed' time and thus any entity that completes processing
       // right after this check and before the check for stale entities will be identified as stale
       // and will be deleted from the UI until the next 'checkForLogs' run.
-      val notStale = mutable.HashSet[String]()
-      val updated = Option(fs.listStatus(new Path(logDir)))
+      val updated = Option(dirFs.listStatus(new Path(dir)))
         .map(_.toImmutableArraySeq).getOrElse(Seq.empty)
         .filter { entry => isAccessible(entry.getPath) }
         .filter { entry =>
@@ -521,7 +623,7 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
             true
           }
         }
-        .flatMap { entry => EventLogFileReader(fs, entry) }
+        .flatMap { entry => EventLogFileReader(dirFs, entry) }
         .filter { reader =>
           try {
             reader.modificationTime
@@ -570,7 +672,9 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
                       attempt.adminAcls,
                       attempt.viewAcls,
                       attempt.adminAclsGroups,
-                      attempt.viewAclsGroups)
+                      attempt.viewAclsGroups,
+                      attempt.logSourceName,
+                      attempt.logSourceFullPath)
                   } else {
                     attempt
                   }
@@ -597,7 +701,7 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
                 if (conf.get(CLEANER_ENABLED) && reader.modificationTime <
                     clock.getTimeMillis() - conf.get(MAX_LOG_AGE_S) * 1000) {
                   logInfo(log"Deleting expired event log ${MDC(PATH, reader.rootPath.toString)}")
-                  deleteLog(fs, reader.rootPath)
+                  deleteLog(dirFs, reader.rootPath)
                   // If the LogInfo read had succeeded, but the ApplicationInafoWrapper
                   // read failure and throw the exception, we should also cleanup the log
                   // info from listing db.
@@ -637,27 +741,6 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
         }
       }
 
-      // Delete all information about applications whose log files disappeared from storage.
-      // This is done by identifying the event logs which were not touched by the current
-      // directory scan.
-      //
-      // Only entries with valid applications are cleaned up here. Cleaning up invalid log
-      // files is done by the periodic cleaner task.
-      val stale = listing.synchronized {
-        KVUtils.viewToSeq(listing.view(classOf[LogInfo])
-          .index("lastProcessed")
-          .last(newLastScanTime - 1))
-      }
-      stale.filterNot(isProcessing)
-        .filterNot(info => notStale.contains(info.logPath))
-        .foreach { log =>
-          log.appId.foreach { appId =>
-            cleanAppData(appId, log.attemptId, log.logPath)
-            listing.delete(classOf[LogInfo], log.logPath)
-          }
-        }
-
-      lastScanTime.set(newLastScanTime)
     } catch {
       case e: Exception => logError("Exception in checking for event log updates", e)
     }
@@ -743,8 +826,8 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
         .map { id => app.attempts.filter(_.info.attemptId == Some(id)) }
         .getOrElse(app.attempts)
         .foreach { attempt =>
-          val reader = EventLogFileReader(fs, new Path(logDir, attempt.logPath),
-            attempt.lastIndex)
+          val (logFs, logPath) = resolveLogPath(attempt.logPath)
+          val reader = EventLogFileReader(logFs, logPath, attempt.lastIndex)
           reader.zipEventLogFiles(zipStream)
         }
     } finally {
@@ -752,6 +835,100 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
     }
   }
 
+  /**
+   * Resolve the log path by searching across all log directories.
+   * Returns the FileSystem and full Path for the given log path name.
+   */
+  private def resolveLogPath(logPathName: String): (FileSystem, Path) = {
+    logDirs.iterator.map { dir =>
+      val dirFs = logDirFs(dir)
+      val fullPath = new Path(dir, logPathName)
+      (dirFs, fullPath)
+    }.find { case (dirFs, fullPath) =>
+      try {
+        dirFs.exists(fullPath)
+      } catch {
+        case _: Exception => false
+      }
+    }.getOrElse {
+      // Fall back to the first directory (preserves original behavior)
+      (fs, new Path(logDir, logPathName))
+    }
+  }
+
+  /**
+   * Find the log directory string that contains the given path.
+   * Falls back to the first directory if no match is found.
+   */
+  private def logDirForPath(path: Path): String = {
+    // Try normalized path matching first (handles scheme differences like file:// vs raw path)
+    normalizedLogDirs.find { case (dirPath, _, _) =>
+      isDescendantOf(path, dirPath)
+    }.orElse {
+      // Fallback: string-based matching for non-normalized paths
+      val pathStr = path.toUri.getPath
+      normalizedLogDirs.find { case (dirPath, _, _) =>
+        val dirStr = dirPath.toUri.getPath
+        pathStr == dirStr || pathStr.startsWith(dirStr.stripSuffix("/") + "/")
+      }
+    }.map(_._3).getOrElse(logDir)
+  }
+
+  /**
+   * Get the FileSystem for a full path by matching against known log directories.
+   * Falls back to the default FileSystem if no match is found.
+   */
+  private def fsForPath(path: Path): FileSystem = {
+    logDirFs(logDirForPath(path))
+  }
+
+  /**
+   * Get the display name and full path for a log path.
+   * Returns (displayName, fullPath) tuple.
+   * Uses FileSystem path resolution for security and handles symbolic links properly.
+   */
+  private[history] def getLogDirInfo(logPath: String): (String, String) = {
+    try {
+      val path = new Path(logPath)
+      val logPathFs = fsForPath(path)
+      val normalized = path.makeQualified(logPathFs.getUri, logPathFs.getWorkingDirectory)
+
+      // Find the longest matching prefix (already sorted by depth)
+      normalizedLogDirs.find { case (dirPath, _, _) =>
+        isDescendantOf(normalized, dirPath)
+      } match {
+        case Some((_, displayName, fullPath)) => (displayName, fullPath)
+        case None =>
+          // Fallback to first directory
+          (logDirToDisplayName(logDir), logDir)
+      }
+    } catch {
+      case e: Exception =>
+        logWarning(log"Failed to resolve log dir info for path ${MDC(PATH, logPath)}: " +
+          log"${MDC(ERROR, e.getMessage)}")
+        (logDirToDisplayName(logDir), logDir)
+    }
+  }
+
+  /**
+   * Check if a path is a descendant of another path.
+   * Handles both exact match and subdirectory cases safely.
+   */
+  private def isDescendantOf(path: Path, ancestor: Path): Boolean = {
+    if (path.equals(ancestor)) {
+      true
+    } else {
+      var current = path.getParent
+      while (current != null) {
+        if (current.equals(ancestor)) {
+          return true
+        }
+        current = current.getParent
+      }
+      false
+    }
+  }
+
   private def mergeApplicationListing(
       reader: EventLogFileReader,
       scanTime: Long,
@@ -788,7 +965,7 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
           if reader.rootPath.getName.endsWith(EventLogFileWriter.IN_PROGRESS) =>
         val finalFileName = reader.rootPath.getName.stripSuffix(EventLogFileWriter.IN_PROGRESS)
         val finalFilePath = new Path(reader.rootPath.getParent, finalFileName)
-        if (fs.exists(finalFilePath)) {
+        if (fsForPath(finalFilePath).exists(finalFilePath)) {
           // Do nothing, the application completed during processing, the final event log file
           // will be processed by next around.
         } else {
@@ -844,7 +1021,7 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
       ((!appCompleted && fastInProgressParsing) || reparseChunkSize > 0)
 
     val bus = new ReplayListenerBus()
-    val listener = new AppListingListener(reader, clock, shouldHalt)
+    val listener = new AppListingListener(reader, clock, shouldHalt, this)
     bus.addListener(listener)
 
     logInfo(log"Parsing ${MDC(PATH, logPath)} for listing data...")
@@ -872,7 +1049,8 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
     val lookForEndEvent = shouldHalt && (appCompleted || !fastInProgressParsing)
     if (lookForEndEvent && listener.applicationInfo.isDefined) {
       val lastFile = logFiles.last
-      Utils.tryWithResource(EventLogFileReader.openEventLog(lastFile.getPath, fs)) { in =>
+      Utils.tryWithResource(EventLogFileReader.openEventLog(lastFile.getPath,
+          fsForPath(lastFile.getPath))) { in =>
         val target = lastFile.getLen - reparseChunkSize
         if (target > 0) {
           logInfo(log"Looking for end event; skipping ${MDC(NUM_BYTES, target)} bytes" +
@@ -916,7 +1094,8 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
           try {
             // Fetch the entry first to avoid an RPC when it's already removed.
             listing.read(classOf[LogInfo], inProgressLog)
-            if (!SparkHadoopUtil.isFile(fs, new Path(inProgressLog))) {
+            if (!SparkHadoopUtil.isFile(fsForPath(new Path(inProgressLog)),
+                new Path(inProgressLog))) {
               listing.synchronized {
                 listing.delete(classOf[LogInfo], inProgressLog)
               }
@@ -955,7 +1134,8 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
             if (info.lastEvaluatedForCompaction.isEmpty ||
                 info.lastEvaluatedForCompaction.get < lastIndex) {
               // haven't tried compaction for this index, do compaction
-              fileCompactor.compact(reader.listEventLogFiles)
+              val compactor = fileCompactors(logDirForPath(reader.rootPath))
+              compactor.compact(reader.listEventLogFiles)
               listing.write(info.copy(lastEvaluatedForCompaction = Some(lastIndex)))
             }
           } catch {
@@ -1000,7 +1180,8 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
 
     if (log.lastProcessed <= maxTime && log.appId.isEmpty) {
       logInfo(log"Deleting invalid / corrupt event log ${MDC(PATH, log.logPath)}")
-      deleteLog(fs, new Path(log.logPath))
+      val logPath = new Path(log.logPath)
+      deleteLog(fsForPath(logPath), logPath)
       listing.delete(classOf[LogInfo], log.logPath)
     }
 
@@ -1042,7 +1223,8 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
     stale.filterNot(isProcessing).foreach { log =>
       if (log.appId.isEmpty) {
         logInfo(log"Deleting invalid / corrupt event log ${MDC(PATH, log.logPath)}")
-        deleteLog(fs, new Path(log.logPath))
+        val logPath = new Path(log.logPath)
+        deleteLog(fsForPath(logPath), logPath)
         listing.delete(classOf[LogInfo], log.logPath)
       }
     }
@@ -1083,10 +1265,10 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
     var countDeleted = 0
     toDelete.foreach { attempt =>
       logInfo(log"Deleting expired event log for ${MDC(PATH, attempt.logPath)}")
-      val logPath = new Path(logDir, attempt.logPath)
+      val (logFs, logPath) = resolveLogPath(attempt.logPath)
       listing.delete(classOf[LogInfo], logPath.toString())
       cleanAppData(app.id, attempt.info.attemptId, logPath.toString())
-      if (deleteLog(fs, logPath)) {
+      if (deleteLog(logFs, logPath)) {
         countDeleted += 1
       }
     }
@@ -1194,7 +1376,8 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
     var continueReplay = true
     logFiles.foreach { file =>
       if (continueReplay) {
-        Utils.tryWithResource(EventLogFileReader.openEventLog(file.getPath, fs)) { in =>
+        Utils.tryWithResource(EventLogFileReader.openEventLog(file.getPath,
+            fsForPath(file.getPath))) { in =>
           continueReplay = replayBus.replay(in, file.getPath.toString,
             maybeTruncated = maybeTruncated, eventsFilter = eventsFilter)
         }
@@ -1208,11 +1391,9 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
    * Note that DistributedFileSystem is a `@LimitedPrivate` class, which for all practical reasons
    * makes it more public than not.
    */
-  private[history] def isFsInSafeMode(): Boolean = fs match {
-    case dfs: DistributedFileSystem =>
-      isFsInSafeMode(dfs)
-    case _ =>
-      false
+  private[history] def isFsInSafeMode(): Boolean = logDirFs.values.exists {
+    case dfs: DistributedFileSystem => isFsInSafeMode(dfs)
+    case _ => false
   }
 
   private[history] def isFsInSafeMode(dfs: DistributedFileSystem): Boolean = {
@@ -1226,7 +1407,7 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
    */
   override def toString: String = {
     val count = listing.count(classOf[ApplicationInfoWrapper])
-    s"""|FsHistoryProvider{logdir=$logDir,
+    s"""|FsHistoryProvider{logdirs=${logDirs.mkString(",")},
         |  storedir=$storePath,
         |  last scan time=$lastScanTime
         |  application count=$count}""".stripMargin
@@ -1314,7 +1495,8 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
       metadata: AppStatusStoreMetadata): KVStore = {
     var retried = false
     var hybridStore: HybridStore = null
-    val reader = EventLogFileReader(fs, new Path(logDir, attempt.logPath),
+    val (logFs, logPath) = resolveLogPath(attempt.logPath)
+    val reader = EventLogFileReader(logFs, logPath,
       attempt.lastIndex)
 
     // Use InMemoryStore to rebuild app store
@@ -1389,7 +1571,8 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
     var retried = false
     var newStorePath: File = null
     while (newStorePath == null) {
-      val reader = EventLogFileReader(fs, new Path(logDir, attempt.logPath),
+      val (logFs, logPath) = resolveLogPath(attempt.logPath)
+      val reader = EventLogFileReader(logFs, logPath,
         attempt.lastIndex)
       val isCompressed = reader.compressionCodec.isDefined
       logInfo(log"Leasing disk manager space for app" +
@@ -1424,7 +1607,8 @@ private[history] class FsHistoryProvider(conf: SparkConf, clock: Clock)
     while (store == null) {
       try {
         val s = new InMemoryStore()
-        val reader = EventLogFileReader(fs, new Path(logDir, attempt.logPath),
+        val (logFs, logPath) = resolveLogPath(attempt.logPath)
+        val reader = EventLogFileReader(logFs, logPath,
           attempt.lastIndex)
         rebuildAppStore(s, reader, attempt.info.lastUpdated.getTime())
         store = s
@@ -1555,7 +1739,9 @@ private[history] class AttemptInfoWrapper(
     val adminAcls: Option[String],
     val viewAcls: Option[String],
     val adminAclsGroups: Option[String],
-    val viewAclsGroups: Option[String])
+    val viewAclsGroups: Option[String],
+    val logSourceName: String,
+    val logSourceFullPath: String)
 
 private[history] class ApplicationInfoWrapper(
     val info: ApplicationInfo,
@@ -1577,11 +1763,12 @@ private[history] class ApplicationInfoWrapper(
 private[history] class AppListingListener(
     reader: EventLogFileReader,
     clock: Clock,
-    haltEnabled: Boolean) extends SparkListener {
+    haltEnabled: Boolean,
+    provider: FsHistoryProvider) extends SparkListener {
 
   private val app = new MutableApplicationInfo()
   private val attempt = new MutableAttemptInfo(reader.rootPath.getName(),
-    reader.fileSizeForLastIndex, reader.lastIndex)
+    reader.rootPath.toString(), reader.fileSizeForLastIndex, reader.lastIndex)
 
   private var gotEnvUpdate = false
   private var halted = false
@@ -1661,7 +1848,8 @@ private[history] class AppListingListener(
 
   }
 
-  private class MutableAttemptInfo(logPath: String, fileSize: Long, lastIndex: Option[Long]) {
+  private class MutableAttemptInfo(logPath: String, fullLogPath: String,
+      fileSize: Long, lastIndex: Option[Long]) {
     var attemptId: Option[String] = None
     var startTime = new Date(-1)
     var endTime = new Date(-1)
@@ -1677,6 +1865,7 @@ private[history] class AppListingListener(
     var viewAclsGroups: Option[String] = None
 
     def toView(): AttemptInfoWrapper = {
+      val (logSourceName, logSourceFullPath) = provider.getLogDirInfo(fullLogPath)
       val apiInfo = ApplicationAttemptInfo(
         attemptId,
         startTime,
@@ -1685,7 +1874,9 @@ private[history] class AppListingListener(
         duration,
         sparkUser,
         completed,
-        appSparkVersion)
+        appSparkVersion,
+        Some(logSourceName),
+        Some(logSourceFullPath))
       new AttemptInfoWrapper(
         apiInfo,
         logPath,
@@ -1694,7 +1885,9 @@ private[history] class AppListingListener(
         adminAcls,
         viewAcls,
         adminAclsGroups,
-        viewAclsGroups)
+        viewAclsGroups,
+        logSourceName,
+        logSourceFullPath)
     }
 
   }
diff --git a/core/src/main/scala/org/apache/spark/deploy/history/HistoryPage.scala b/core/src/main/scala/org/apache/spark/deploy/history/HistoryPage.scala
index f0131ba0081f4..cad8a53607c30 100644
--- a/core/src/main/scala/org/apache/spark/deploy/history/HistoryPage.scala
+++ b/core/src/main/scala/org/apache/spark/deploy/history/HistoryPage.scala
@@ -39,7 +39,21 @@ private[history] class HistoryPage(parent: HistoryServer) extends WebUIPage("")
     val summary =
       <div class="container-fluid">
         <ul class="list-unstyled">
-          {providerConfig.map { case (k, v) => <li><strong>{k}:</strong> {v}</li> }}
+          {providerConfig.map { case (k, v) =>
+            if (k == "Event log directory" && v.contains(",")) {
+              val dirs = v.split(",").map(_.trim)
+              <li>
+                <details>
+                  <summary><strong>{k}:</strong> {dirs.length} directories</summary>
+                  <ul style="margin-top: 4px;">
+                    {dirs.map(d => <li>{d}</li>)}
+                  </ul>
+                </details>
+              </li>
+            } else {
+              <li><strong>{k}:</strong> {v}</li>
+            }
+          }}
         </ul>
         {
           if (eventLogsUnderProcessCount > 0) {
diff --git a/core/src/main/scala/org/apache/spark/internal/config/History.scala b/core/src/main/scala/org/apache/spark/internal/config/History.scala
index d44d3c32dfef3..b073f8369990f 100644
--- a/core/src/main/scala/org/apache/spark/internal/config/History.scala
+++ b/core/src/main/scala/org/apache/spark/internal/config/History.scala
@@ -28,10 +28,19 @@ private[spark] object History {
 
   val HISTORY_LOG_DIR = ConfigBuilder("spark.history.fs.logDirectory")
     .version("1.1.0")
-    .doc("Directory where app logs are stored")
+    .doc("Directory where app logs are stored. Multiple directories can be specified " +
+      "as a comma-separated list to monitor event logs from multiple paths.")
     .stringConf
     .createWithDefault(DEFAULT_LOG_DIR)
 
+  val HISTORY_LOG_DIR_NAMES = ConfigBuilder("spark.history.fs.logDirectory.names")
+    .version("4.1.0")
+    .doc("Optional comma-separated list of display names for the log directories specified " +
+      "in spark.history.fs.logDirectory. Names correspond to directories by position. " +
+      "If not set, the full path is shown in the UI.")
+    .stringConf
+    .createOptional
+
   val SAFEMODE_CHECK_INTERVAL_S = ConfigBuilder("spark.history.fs.safemodeCheck.interval")
     .version("1.6.0")
     .doc("Interval between HDFS safemode checks for the event log directory")
diff --git a/core/src/main/scala/org/apache/spark/status/api/v1/api.scala b/core/src/main/scala/org/apache/spark/status/api/v1/api.scala
index 6ae1dce57f31c..f3fb916f08206 100644
--- a/core/src/main/scala/org/apache/spark/status/api/v1/api.scala
+++ b/core/src/main/scala/org/apache/spark/status/api/v1/api.scala
@@ -53,7 +53,9 @@ case class ApplicationAttemptInfo private[spark](
     duration: Long,
     sparkUser: String,
     completed: Boolean = false,
-    appSparkVersion: String) {
+    appSparkVersion: String,
+    logSourceName: Option[String] = None,
+    logSourceFullPath: Option[String] = None) {
 
   def getStartTimeEpoch: Long = startTime.getTime
 
diff --git a/core/src/test/resources/HistoryServerExpectations/application_list_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/application_list_json_expectation.json
index 5bda5747c1870..ac6e5c63c0b6b 100644
--- a/core/src/test/resources/HistoryServerExpectations/application_list_json_expectation.json
+++ b/core/src/test/resources/HistoryServerExpectations/application_list_json_expectation.json
@@ -1,6 +1,8 @@
 [ {
   "attempts" : [ {
     "appSparkVersion" : "4.2.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 2006,
     "endTime" : "2025-12-27T14:15:12.221GMT",
@@ -16,6 +18,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "3.3.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 86045,
     "endTime" : "2022-01-13T02:05:36.564GMT",
@@ -31,6 +35,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "3.1.1.119",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 274875,
     "endTime" : "2021-08-10T23:29:30.208GMT",
@@ -46,6 +52,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "3.1.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 363996,
     "endTime" : "2020-07-07T03:17:04.231GMT",
@@ -61,6 +69,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "3.0.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 139764,
     "endTime" : "2020-01-11T17:46:42.615GMT",
@@ -76,6 +86,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "3.0.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 18794,
     "endTime" : "2019-07-02T21:02:35.974GMT",
@@ -91,6 +103,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "3.0.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 62168,
     "endTime" : "2019-04-08T20:40:46.454GMT",
@@ -106,6 +120,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "2.3.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 472819,
     "endTime" : "2018-01-18T18:38:27.938GMT",
@@ -121,6 +137,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "2.3.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 535234,
     "endTime" : "2018-01-09T10:24:37.606GMT",
@@ -136,6 +154,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "2.1.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 10671,
     "endTime" : "2016-11-16T22:33:40.587GMT",
@@ -151,6 +171,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "2.1.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 101795,
     "endTime" : "2016-11-15T23:22:18.874GMT",
@@ -166,6 +188,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "1.4.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 10505,
     "endTime" : "2015-05-06T13:03:11.398GMT",
@@ -182,6 +206,8 @@
   "attempts" : [ {
     "appSparkVersion" : "1.4.0-SNAPSHOT",
     "attemptId" : "2",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 57,
     "endTime" : "2015-05-06T13:03:00.950GMT",
@@ -194,6 +220,8 @@
   }, {
     "appSparkVersion" : "1.4.0-SNAPSHOT",
     "attemptId" : "1",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 10,
     "endTime" : "2015-05-06T13:03:00.890GMT",
@@ -210,6 +238,8 @@
   "attempts" : [ {
     "appSparkVersion" : "",
     "attemptId" : "2",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 34935,
     "endTime" : "2015-03-17T23:12:25.177GMT",
@@ -222,6 +252,8 @@
   }, {
     "appSparkVersion" : "",
     "attemptId" : "1",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 34935,
     "endTime" : "2015-03-16T19:25:45.177GMT",
@@ -237,6 +269,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 8635,
     "endTime" : "2015-02-28T00:02:46.912GMT",
@@ -252,6 +286,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 9011,
     "endTime" : "2015-02-03T16:43:08.731GMT",
@@ -267,6 +303,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 8635,
     "endTime" : "2015-02-03T16:42:46.912GMT",
diff --git a/core/src/test/resources/HistoryServerExpectations/completed_app_list_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/completed_app_list_json_expectation.json
index 5bda5747c1870..ac6e5c63c0b6b 100644
--- a/core/src/test/resources/HistoryServerExpectations/completed_app_list_json_expectation.json
+++ b/core/src/test/resources/HistoryServerExpectations/completed_app_list_json_expectation.json
@@ -1,6 +1,8 @@
 [ {
   "attempts" : [ {
     "appSparkVersion" : "4.2.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 2006,
     "endTime" : "2025-12-27T14:15:12.221GMT",
@@ -16,6 +18,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "3.3.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 86045,
     "endTime" : "2022-01-13T02:05:36.564GMT",
@@ -31,6 +35,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "3.1.1.119",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 274875,
     "endTime" : "2021-08-10T23:29:30.208GMT",
@@ -46,6 +52,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "3.1.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 363996,
     "endTime" : "2020-07-07T03:17:04.231GMT",
@@ -61,6 +69,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "3.0.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 139764,
     "endTime" : "2020-01-11T17:46:42.615GMT",
@@ -76,6 +86,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "3.0.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 18794,
     "endTime" : "2019-07-02T21:02:35.974GMT",
@@ -91,6 +103,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "3.0.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 62168,
     "endTime" : "2019-04-08T20:40:46.454GMT",
@@ -106,6 +120,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "2.3.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 472819,
     "endTime" : "2018-01-18T18:38:27.938GMT",
@@ -121,6 +137,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "2.3.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 535234,
     "endTime" : "2018-01-09T10:24:37.606GMT",
@@ -136,6 +154,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "2.1.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 10671,
     "endTime" : "2016-11-16T22:33:40.587GMT",
@@ -151,6 +171,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "2.1.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 101795,
     "endTime" : "2016-11-15T23:22:18.874GMT",
@@ -166,6 +188,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "1.4.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 10505,
     "endTime" : "2015-05-06T13:03:11.398GMT",
@@ -182,6 +206,8 @@
   "attempts" : [ {
     "appSparkVersion" : "1.4.0-SNAPSHOT",
     "attemptId" : "2",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 57,
     "endTime" : "2015-05-06T13:03:00.950GMT",
@@ -194,6 +220,8 @@
   }, {
     "appSparkVersion" : "1.4.0-SNAPSHOT",
     "attemptId" : "1",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 10,
     "endTime" : "2015-05-06T13:03:00.890GMT",
@@ -210,6 +238,8 @@
   "attempts" : [ {
     "appSparkVersion" : "",
     "attemptId" : "2",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 34935,
     "endTime" : "2015-03-17T23:12:25.177GMT",
@@ -222,6 +252,8 @@
   }, {
     "appSparkVersion" : "",
     "attemptId" : "1",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 34935,
     "endTime" : "2015-03-16T19:25:45.177GMT",
@@ -237,6 +269,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 8635,
     "endTime" : "2015-02-28T00:02:46.912GMT",
@@ -252,6 +286,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 9011,
     "endTime" : "2015-02-03T16:43:08.731GMT",
@@ -267,6 +303,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 8635,
     "endTime" : "2015-02-03T16:42:46.912GMT",
diff --git a/core/src/test/resources/HistoryServerExpectations/limit_app_list_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/limit_app_list_json_expectation.json
index 1f03d9f97395c..06ef3a5ecc9fe 100644
--- a/core/src/test/resources/HistoryServerExpectations/limit_app_list_json_expectation.json
+++ b/core/src/test/resources/HistoryServerExpectations/limit_app_list_json_expectation.json
@@ -1,6 +1,8 @@
 [ {
   "attempts" : [ {
     "appSparkVersion" : "4.2.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 2006,
     "endTime" : "2025-12-27T14:15:12.221GMT",
@@ -16,6 +18,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "3.3.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 86045,
     "endTime" : "2022-01-13T02:05:36.564GMT",
@@ -31,6 +35,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "3.1.1.119",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 274875,
     "endTime" : "2021-08-10T23:29:30.208GMT",
diff --git a/core/src/test/resources/HistoryServerExpectations/maxDate2_app_list_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/maxDate2_app_list_json_expectation.json
index ce928dca9838d..b496b60f114af 100644
--- a/core/src/test/resources/HistoryServerExpectations/maxDate2_app_list_json_expectation.json
+++ b/core/src/test/resources/HistoryServerExpectations/maxDate2_app_list_json_expectation.json
@@ -1,6 +1,8 @@
 [ {
   "attempts" : [ {
     "appSparkVersion" : "",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 8635,
     "endTime" : "2015-02-03T16:42:46.912GMT",
diff --git a/core/src/test/resources/HistoryServerExpectations/maxDate_app_list_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/maxDate_app_list_json_expectation.json
index a747bc66844a5..c9610d5feeb6e 100644
--- a/core/src/test/resources/HistoryServerExpectations/maxDate_app_list_json_expectation.json
+++ b/core/src/test/resources/HistoryServerExpectations/maxDate_app_list_json_expectation.json
@@ -1,6 +1,8 @@
 [ {
   "attempts" : [ {
     "appSparkVersion" : "",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 9011,
     "endTime" : "2015-02-03T16:43:08.731GMT",
@@ -16,6 +18,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 8635,
     "endTime" : "2015-02-03T16:42:46.912GMT",
diff --git a/core/src/test/resources/HistoryServerExpectations/maxEndDate_app_list_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/maxEndDate_app_list_json_expectation.json
index 5d65fff3ebade..5088134a31695 100644
--- a/core/src/test/resources/HistoryServerExpectations/maxEndDate_app_list_json_expectation.json
+++ b/core/src/test/resources/HistoryServerExpectations/maxEndDate_app_list_json_expectation.json
@@ -2,6 +2,8 @@
   "attempts" : [ {
     "appSparkVersion" : "1.4.0-SNAPSHOT",
     "attemptId" : "2",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 57,
     "endTime" : "2015-05-06T13:03:00.950GMT",
@@ -14,6 +16,8 @@
   }, {
     "appSparkVersion" : "1.4.0-SNAPSHOT",
     "attemptId" : "1",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 10,
     "endTime" : "2015-05-06T13:03:00.890GMT",
@@ -30,6 +34,8 @@
   "attempts" : [ {
     "appSparkVersion" : "",
     "attemptId" : "2",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 34935,
     "endTime" : "2015-03-17T23:12:25.177GMT",
@@ -42,6 +48,8 @@
   }, {
     "appSparkVersion" : "",
     "attemptId" : "1",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 34935,
     "endTime" : "2015-03-16T19:25:45.177GMT",
@@ -57,6 +65,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 8635,
     "endTime" : "2015-02-28T00:02:46.912GMT",
@@ -72,6 +82,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 9011,
     "endTime" : "2015-02-03T16:43:08.731GMT",
@@ -87,6 +99,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 8635,
     "endTime" : "2015-02-03T16:42:46.912GMT",
diff --git a/core/src/test/resources/HistoryServerExpectations/minDate_and_maxEndDate_app_list_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/minDate_and_maxEndDate_app_list_json_expectation.json
index 8e09a800fae24..8b974582d717e 100644
--- a/core/src/test/resources/HistoryServerExpectations/minDate_and_maxEndDate_app_list_json_expectation.json
+++ b/core/src/test/resources/HistoryServerExpectations/minDate_and_maxEndDate_app_list_json_expectation.json
@@ -2,6 +2,8 @@
   "attempts" : [ {
     "appSparkVersion" : "1.4.0-SNAPSHOT",
     "attemptId" : "2",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 57,
     "endTime" : "2015-05-06T13:03:00.950GMT",
@@ -14,6 +16,8 @@
   }, {
     "appSparkVersion" : "1.4.0-SNAPSHOT",
     "attemptId" : "1",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 10,
     "endTime" : "2015-05-06T13:03:00.890GMT",
@@ -30,6 +34,8 @@
   "attempts" : [ {
     "appSparkVersion" : "",
     "attemptId" : "2",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 34935,
     "endTime" : "2015-03-17T23:12:25.177GMT",
@@ -42,6 +48,8 @@
   }, {
     "appSparkVersion" : "",
     "attemptId" : "1",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 34935,
     "endTime" : "2015-03-16T19:25:45.177GMT",
diff --git a/core/src/test/resources/HistoryServerExpectations/minDate_app_list_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/minDate_app_list_json_expectation.json
index 3e9c4b1d0f302..a1d2f9e9ef4de 100644
--- a/core/src/test/resources/HistoryServerExpectations/minDate_app_list_json_expectation.json
+++ b/core/src/test/resources/HistoryServerExpectations/minDate_app_list_json_expectation.json
@@ -1,6 +1,8 @@
 [ {
   "attempts" : [ {
     "appSparkVersion" : "4.2.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 2006,
     "endTime" : "2025-12-27T14:15:12.221GMT",
@@ -16,6 +18,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "3.3.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 86045,
     "endTime" : "2022-01-13T02:05:36.564GMT",
@@ -31,6 +35,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "3.1.1.119",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 274875,
     "endTime" : "2021-08-10T23:29:30.208GMT",
@@ -46,6 +52,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "3.1.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 363996,
     "endTime" : "2020-07-07T03:17:04.231GMT",
@@ -61,6 +69,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "3.0.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 139764,
     "endTime" : "2020-01-11T17:46:42.615GMT",
@@ -76,6 +86,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "3.0.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 18794,
     "endTime" : "2019-07-02T21:02:35.974GMT",
@@ -91,6 +103,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "3.0.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 62168,
     "endTime" : "2019-04-08T20:40:46.454GMT",
@@ -106,6 +120,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "2.3.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 472819,
     "endTime" : "2018-01-18T18:38:27.938GMT",
@@ -121,6 +137,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "2.3.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 535234,
     "endTime" : "2018-01-09T10:24:37.606GMT",
@@ -136,6 +154,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "2.1.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 10671,
     "endTime" : "2016-11-16T22:33:40.587GMT",
@@ -151,6 +171,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "2.1.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 101795,
     "endTime" : "2016-11-15T23:22:18.874GMT",
@@ -166,6 +188,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "1.4.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 10505,
     "endTime" : "2015-05-06T13:03:11.398GMT",
@@ -182,6 +206,8 @@
   "attempts" : [ {
     "appSparkVersion" : "1.4.0-SNAPSHOT",
     "attemptId" : "2",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 57,
     "endTime" : "2015-05-06T13:03:00.950GMT",
@@ -194,6 +220,8 @@
   }, {
     "appSparkVersion" : "1.4.0-SNAPSHOT",
     "attemptId" : "1",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 10,
     "endTime" : "2015-05-06T13:03:00.890GMT",
@@ -210,6 +238,8 @@
   "attempts" : [ {
     "appSparkVersion" : "",
     "attemptId" : "2",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 34935,
     "endTime" : "2015-03-17T23:12:25.177GMT",
@@ -222,6 +252,8 @@
   }, {
     "appSparkVersion" : "",
     "attemptId" : "1",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 34935,
     "endTime" : "2015-03-16T19:25:45.177GMT",
@@ -237,6 +269,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 8635,
     "endTime" : "2015-02-28T00:02:46.912GMT",
diff --git a/core/src/test/resources/HistoryServerExpectations/minEndDate_and_maxEndDate_app_list_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/minEndDate_and_maxEndDate_app_list_json_expectation.json
index 8e09a800fae24..8b974582d717e 100644
--- a/core/src/test/resources/HistoryServerExpectations/minEndDate_and_maxEndDate_app_list_json_expectation.json
+++ b/core/src/test/resources/HistoryServerExpectations/minEndDate_and_maxEndDate_app_list_json_expectation.json
@@ -2,6 +2,8 @@
   "attempts" : [ {
     "appSparkVersion" : "1.4.0-SNAPSHOT",
     "attemptId" : "2",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 57,
     "endTime" : "2015-05-06T13:03:00.950GMT",
@@ -14,6 +16,8 @@
   }, {
     "appSparkVersion" : "1.4.0-SNAPSHOT",
     "attemptId" : "1",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 10,
     "endTime" : "2015-05-06T13:03:00.890GMT",
@@ -30,6 +34,8 @@
   "attempts" : [ {
     "appSparkVersion" : "",
     "attemptId" : "2",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 34935,
     "endTime" : "2015-03-17T23:12:25.177GMT",
@@ -42,6 +48,8 @@
   }, {
     "appSparkVersion" : "",
     "attemptId" : "1",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 34935,
     "endTime" : "2015-03-16T19:25:45.177GMT",
diff --git a/core/src/test/resources/HistoryServerExpectations/minEndDate_app_list_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/minEndDate_app_list_json_expectation.json
index 8c938661d7b2f..413660c4b689c 100644
--- a/core/src/test/resources/HistoryServerExpectations/minEndDate_app_list_json_expectation.json
+++ b/core/src/test/resources/HistoryServerExpectations/minEndDate_app_list_json_expectation.json
@@ -1,6 +1,8 @@
 [ {
   "attempts" : [ {
     "appSparkVersion" : "4.2.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 2006,
     "endTime" : "2025-12-27T14:15:12.221GMT",
@@ -16,6 +18,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "3.3.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 86045,
     "endTime" : "2022-01-13T02:05:36.564GMT",
@@ -31,6 +35,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "3.1.1.119",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 274875,
     "endTime" : "2021-08-10T23:29:30.208GMT",
@@ -46,6 +52,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "3.1.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 363996,
     "endTime" : "2020-07-07T03:17:04.231GMT",
@@ -61,6 +69,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "3.0.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 139764,
     "endTime" : "2020-01-11T17:46:42.615GMT",
@@ -76,6 +86,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "3.0.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 18794,
     "endTime" : "2019-07-02T21:02:35.974GMT",
@@ -91,6 +103,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "3.0.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 62168,
     "endTime" : "2019-04-08T20:40:46.454GMT",
@@ -106,6 +120,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "2.3.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 472819,
     "endTime" : "2018-01-18T18:38:27.938GMT",
@@ -121,6 +137,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "2.3.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 535234,
     "endTime" : "2018-01-09T10:24:37.606GMT",
@@ -136,6 +154,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "2.1.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 10671,
     "endTime" : "2016-11-16T22:33:40.587GMT",
@@ -151,6 +171,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "2.1.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 101795,
     "endTime" : "2016-11-15T23:22:18.874GMT",
@@ -166,6 +188,8 @@
 }, {
   "attempts" : [ {
     "appSparkVersion" : "1.4.0-SNAPSHOT",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 10505,
     "endTime" : "2015-05-06T13:03:11.398GMT",
@@ -182,6 +206,8 @@
   "attempts" : [ {
     "appSparkVersion" : "1.4.0-SNAPSHOT",
     "attemptId" : "2",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 57,
     "endTime" : "2015-05-06T13:03:00.950GMT",
@@ -194,6 +220,8 @@
   }, {
     "appSparkVersion" : "1.4.0-SNAPSHOT",
     "attemptId" : "1",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 10,
     "endTime" : "2015-05-06T13:03:00.890GMT",
diff --git a/core/src/test/resources/HistoryServerExpectations/one_app_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/one_app_json_expectation.json
index 7e375af0ee9ef..5b0ce588b5636 100644
--- a/core/src/test/resources/HistoryServerExpectations/one_app_json_expectation.json
+++ b/core/src/test/resources/HistoryServerExpectations/one_app_json_expectation.json
@@ -1,6 +1,8 @@
 {
   "attempts" : [ {
     "appSparkVersion" : "",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 9011,
     "endTime" : "2015-02-03T16:43:08.731GMT",
diff --git a/core/src/test/resources/HistoryServerExpectations/one_app_multi_attempt_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/one_app_multi_attempt_json_expectation.json
index 0e265f11af646..3b116f958dc1d 100644
--- a/core/src/test/resources/HistoryServerExpectations/one_app_multi_attempt_json_expectation.json
+++ b/core/src/test/resources/HistoryServerExpectations/one_app_multi_attempt_json_expectation.json
@@ -2,6 +2,8 @@
   "attempts" : [ {
     "appSparkVersion" : "",
     "attemptId" : "2",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 34935,
     "endTime" : "2015-03-17T23:12:25.177GMT",
@@ -14,6 +16,8 @@
   }, {
     "appSparkVersion" : "",
     "attemptId" : "1",
+    "logSourceFullPath" : "",
+    "logSourceName" : "",
     "completed" : true,
     "duration" : 34935,
     "endTime" : "2015-03-16T19:25:45.177GMT",
diff --git a/core/src/test/scala/org/apache/spark/deploy/history/FsHistoryProviderSuite.scala b/core/src/test/scala/org/apache/spark/deploy/history/FsHistoryProviderSuite.scala
index 8b1b6a5bad383..55d2c8ec39dfa 100644
--- a/core/src/test/scala/org/apache/spark/deploy/history/FsHistoryProviderSuite.scala
+++ b/core/src/test/scala/org/apache/spark/deploy/history/FsHistoryProviderSuite.scala
@@ -156,9 +156,13 @@ abstract class FsHistoryProviderSuite extends SparkFunSuite with Matchers with P
           completed: Boolean): ApplicationInfo = {
 
         val duration = if (end > 0) end - start else 0
+        // Get log dir info from the provider
+        val logPath = new File(testDir, name).getAbsolutePath
+        val (logSourceName, logSourceFullPath) = provider.getLogDirInfo(logPath)
         new ApplicationInfo(id, name, None, None, None, None,
           List(ApplicationAttemptInfo(None, new Date(start),
-            new Date(end), new Date(lastMod), duration, user, completed, SPARK_VERSION)))
+            new Date(end), new Date(lastMod), duration, user, completed, SPARK_VERSION,
+            Some(logSourceName), Some(logSourceFullPath))))
       }
 
       // For completed files, lastUpdated would be lastModified time.
@@ -1201,6 +1205,9 @@ abstract class FsHistoryProviderSuite extends SparkFunSuite with Matchers with P
         !isReadable))
     val mockedProvider = spy[FsHistoryProvider](provider)
     when(mockedProvider.fs).thenReturn(mockedFs)
+    when(mockedProvider.logDirFs).thenReturn(provider.logDirFs.map {
+      case (dir, _) => dir -> mockedFs
+    })
     updateAndCheck(mockedProvider) { list =>
       list.size should be(1)
     }
@@ -1383,11 +1390,11 @@ abstract class FsHistoryProviderSuite extends SparkFunSuite with Matchers with P
     val appInfo = new ApplicationAttemptInfo(None, new Date(1), new Date(1), new Date(1),
       10, "spark", false, "dummy")
     val attemptInfoWithIndexAsNone = new AttemptInfoWrapper(appInfo, "dummyPath", 10, None,
-      None, None, None, None)
+      None, None, None, None, "test-cluster", "/test/path")
     assertSerDe(serializer, attemptInfoWithIndexAsNone)
 
     val attemptInfoWithIndex = new AttemptInfoWrapper(appInfo, "dummyPath", 10, Some(1),
-      None, None, None, None)
+      None, None, None, None, "test-cluster", "/test/path")
     assertSerDe(serializer, attemptInfoWithIndex)
   }
 
@@ -1894,6 +1901,216 @@ abstract class FsHistoryProviderSuite extends SparkFunSuite with Matchers with P
     new ExecutorInfo(host, 1, executorLogUrlMap, executorAttributes)
   }
 
+  test("SPARK-55793: applications from multiple log directories") {
+    val dir2 = Utils.createTempDir(namePrefix = "logDir2")
+    try {
+      val conf = createTestConf()
+        .set(HISTORY_LOG_DIR, s"${testDir.getAbsolutePath},${dir2.getAbsolutePath}")
+      val provider = new FsHistoryProvider(conf)
+
+      // Write app log in first directory
+      val log1 = newLogFile("app1", None, inProgress = false)
+      writeFile(log1, None,
+        SparkListenerApplicationStart("app1", Some("app1-id"), 1L, "test", None),
+        SparkListenerApplicationEnd(5L))
+
+      // Write app log in second directory
+      val logUri2 = SingleEventLogFileWriter.getLogPath(dir2.toURI, "app2", None, None)
+      val log2 = new File(new Path(logUri2).toUri.getPath)
+      writeFile(log2, None,
+        SparkListenerApplicationStart("app2", Some("app2-id"), 2L, "test", None),
+        SparkListenerApplicationEnd(6L))
+
+      updateAndCheck(provider) { list =>
+        list.size should be (2)
+        list.map(_.id).toSet should be (Set("app1-id", "app2-id"))
+
+        // Verify each app has the correct display name derived from its logDir
+        val app1 = list.find(_.id == "app1-id").get
+        val app2 = list.find(_.id == "app2-id").get
+        app1.attempts.head.logSourceName.get should be (testDir.getAbsolutePath)
+        app2.attempts.head.logSourceName.get should be (dir2.getAbsolutePath)
+      }
+
+      provider.stop()
+    } finally {
+      Utils.deleteRecursively(dir2)
+    }
+  }
+
+  test("SPARK-55793: error in one directory does not affect others") {
+    val dir2 = Utils.createTempDir(namePrefix = "logDir2")
+    try {
+      val conf = createTestConf()
+        .set(HISTORY_LOG_DIR,
+          s"${testDir.getAbsolutePath},/nonexistent/path,${dir2.getAbsolutePath}")
+      val provider = new FsHistoryProvider(conf)
+
+      val log1 = newLogFile("app1", None, inProgress = false)
+      writeFile(log1, None,
+        SparkListenerApplicationStart("app1", Some("app1-id"), 1L, "test", None),
+        SparkListenerApplicationEnd(5L))
+
+      val logUri2 = SingleEventLogFileWriter.getLogPath(dir2.toURI, "app2", None, None)
+      val log2 = new File(new Path(logUri2).toUri.getPath)
+      writeFile(log2, None,
+        SparkListenerApplicationStart("app2", Some("app2-id"), 2L, "test", None),
+        SparkListenerApplicationEnd(6L))
+
+      updateAndCheck(provider) { list =>
+        list.size should be (2)
+      }
+
+      provider.stop()
+    } finally {
+      Utils.deleteRecursively(dir2)
+    }
+  }
+
+  test("SPARK-55793: empty name at head falls back to full path") {
+    val dir2 = Utils.createTempDir(namePrefix = "logDir2")
+    val dir3 = Utils.createTempDir(namePrefix = "logDir3")
+    try {
+      val conf = createTestConf()
+        .set(HISTORY_LOG_DIR,
+          s"${testDir.getAbsolutePath},${dir2.getAbsolutePath},${dir3.getAbsolutePath}")
+        .set(HISTORY_LOG_DIR_NAMES, ",NameB,NameC")
+      val provider = new FsHistoryProvider(conf)
+
+      val log1 = newLogFile("app1", None, inProgress = false)
+      writeFile(log1, None,
+        SparkListenerApplicationStart("app1", Some("app1-id"), 1L, "test", None),
+        SparkListenerApplicationEnd(5L))
+
+      val logUri2 = SingleEventLogFileWriter.getLogPath(dir2.toURI, "app2", None, None)
+      val log2 = new File(new Path(logUri2).toUri.getPath)
+      writeFile(log2, None,
+        SparkListenerApplicationStart("app2", Some("app2-id"), 2L, "test", None),
+        SparkListenerApplicationEnd(6L))
+
+      val logUri3 = SingleEventLogFileWriter.getLogPath(dir3.toURI, "app3", None, None)
+      val log3 = new File(new Path(logUri3).toUri.getPath)
+      writeFile(log3, None,
+        SparkListenerApplicationStart("app3", Some("app3-id"), 3L, "test", None),
+        SparkListenerApplicationEnd(7L))
+
+      updateAndCheck(provider) { list =>
+        val app1 = list.find(_.id == "app1-id").get
+        val app2 = list.find(_.id == "app2-id").get
+        val app3 = list.find(_.id == "app3-id").get
+        app1.attempts.head.logSourceName.get should be (testDir.getAbsolutePath)
+        app2.attempts.head.logSourceName.get should be ("NameB")
+        app3.attempts.head.logSourceName.get should be ("NameC")
+      }
+
+      provider.stop()
+    } finally {
+      Utils.deleteRecursively(dir2)
+      Utils.deleteRecursively(dir3)
+    }
+  }
+
+  test("SPARK-55793: empty name at tail falls back to full path") {
+    val dir2 = Utils.createTempDir(namePrefix = "logDir2")
+    val dir3 = Utils.createTempDir(namePrefix = "logDir3")
+    try {
+      val conf = createTestConf()
+        .set(HISTORY_LOG_DIR,
+          s"${testDir.getAbsolutePath},${dir2.getAbsolutePath},${dir3.getAbsolutePath}")
+        .set(HISTORY_LOG_DIR_NAMES, "NameA,NameB,")
+      val provider = new FsHistoryProvider(conf)
+
+      val log1 = newLogFile("app1", None, inProgress = false)
+      writeFile(log1, None,
+        SparkListenerApplicationStart("app1", Some("app1-id"), 1L, "test", None),
+        SparkListenerApplicationEnd(5L))
+
+      val logUri2 = SingleEventLogFileWriter.getLogPath(dir2.toURI, "app2", None, None)
+      val log2 = new File(new Path(logUri2).toUri.getPath)
+      writeFile(log2, None,
+        SparkListenerApplicationStart("app2", Some("app2-id"), 2L, "test", None),
+        SparkListenerApplicationEnd(6L))
+
+      val logUri3 = SingleEventLogFileWriter.getLogPath(dir3.toURI, "app3", None, None)
+      val log3 = new File(new Path(logUri3).toUri.getPath)
+      writeFile(log3, None,
+        SparkListenerApplicationStart("app3", Some("app3-id"), 3L, "test", None),
+        SparkListenerApplicationEnd(7L))
+
+      updateAndCheck(provider) { list =>
+        val app1 = list.find(_.id == "app1-id").get
+        val app2 = list.find(_.id == "app2-id").get
+        val app3 = list.find(_.id == "app3-id").get
+        app1.attempts.head.logSourceName.get should be ("NameA")
+        app2.attempts.head.logSourceName.get should be ("NameB")
+        app3.attempts.head.logSourceName.get should be (dir3.getAbsolutePath)
+      }
+
+      provider.stop()
+    } finally {
+      Utils.deleteRecursively(dir2)
+      Utils.deleteRecursively(dir3)
+    }
+  }
+
+  test("SPARK-55793: empty name in middle falls back to full path") {
+    val dir2 = Utils.createTempDir(namePrefix = "logDir2")
+    val dir3 = Utils.createTempDir(namePrefix = "logDir3")
+    try {
+      val conf = createTestConf()
+        .set(HISTORY_LOG_DIR,
+          s"${testDir.getAbsolutePath},${dir2.getAbsolutePath},${dir3.getAbsolutePath}")
+        .set(HISTORY_LOG_DIR_NAMES, "NameA,,NameC")
+      val provider = new FsHistoryProvider(conf)
+
+      val log1 = newLogFile("app1", None, inProgress = false)
+      writeFile(log1, None,
+        SparkListenerApplicationStart("app1", Some("app1-id"), 1L, "test", None),
+        SparkListenerApplicationEnd(5L))
+
+      val logUri2 = SingleEventLogFileWriter.getLogPath(dir2.toURI, "app2", None, None)
+      val log2 = new File(new Path(logUri2).toUri.getPath)
+      writeFile(log2, None,
+        SparkListenerApplicationStart("app2", Some("app2-id"), 2L, "test", None),
+        SparkListenerApplicationEnd(6L))
+
+      val logUri3 = SingleEventLogFileWriter.getLogPath(dir3.toURI, "app3", None, None)
+      val log3 = new File(new Path(logUri3).toUri.getPath)
+      writeFile(log3, None,
+        SparkListenerApplicationStart("app3", Some("app3-id"), 3L, "test", None),
+        SparkListenerApplicationEnd(7L))
+
+      updateAndCheck(provider) { list =>
+        val app1 = list.find(_.id == "app1-id").get
+        val app2 = list.find(_.id == "app2-id").get
+        val app3 = list.find(_.id == "app3-id").get
+        app1.attempts.head.logSourceName.get should be ("NameA")
+        app2.attempts.head.logSourceName.get should be (dir2.getAbsolutePath)
+        app3.attempts.head.logSourceName.get should be ("NameC")
+      }
+
+      provider.stop()
+    } finally {
+      Utils.deleteRecursively(dir2)
+      Utils.deleteRecursively(dir3)
+    }
+  }
+
+  test("SPARK-55793: duplicate display names should fail") {
+    val dir2 = Utils.createTempDir(namePrefix = "logDir2")
+    try {
+      val conf = createTestConf()
+        .set(HISTORY_LOG_DIR, s"${testDir.getAbsolutePath},${dir2.getAbsolutePath}")
+        .set(HISTORY_LOG_DIR_NAMES, "SameName,SameName")
+      val e = intercept[IllegalArgumentException] {
+        new FsHistoryProvider(conf)
+      }
+      assert(e.getMessage.contains("Duplicate display names"))
+    } finally {
+      Utils.deleteRecursively(dir2)
+    }
+  }
+
   private class SafeModeTestProvider(conf: SparkConf, clock: Clock)
     extends FsHistoryProvider(conf, clock) {
 
diff --git a/core/src/test/scala/org/apache/spark/deploy/history/HistoryServerSuite.scala b/core/src/test/scala/org/apache/spark/deploy/history/HistoryServerSuite.scala
index cf024b8afb4ea..13432b6ed9fc6 100644
--- a/core/src/test/scala/org/apache/spark/deploy/history/HistoryServerSuite.scala
+++ b/core/src/test/scala/org/apache/spark/deploy/history/HistoryServerSuite.scala
@@ -232,7 +232,7 @@ abstract class HistoryServerSuite extends SparkFunSuite with BeforeAndAfter with
 
       val goldenFile =
         new File(expRoot, HistoryServerSuite.sanitizePath(name) + "_expectation.json")
-      val jsonAst = parse(clearLastUpdated(jsonOpt.get))
+      val jsonAst = parse(clearDynamicFields(jsonOpt.get))
 
       if (regenerateGoldenFiles) {
         Utils.tryWithResource(new FileWriter(goldenFile)) { out =>
@@ -255,9 +255,11 @@ abstract class HistoryServerSuite extends SparkFunSuite with BeforeAndAfter with
   // the REST API returns the last modified time of EVENT LOG file for this field.
   // It is not applicable to hard-code this dynamic field in a static expected file,
   // so here we skip checking the lastUpdated field's value (setting it as "").
-  private def clearLastUpdated(json: String): String = {
-    if (json.indexOf("lastUpdated") >= 0) {
-      val subStrings = json.split(",")
+  // Similarly, logSourceName and logSourceFullPath contain environment-specific absolute paths.
+  private def clearDynamicFields(json: String): String = {
+    var result = json
+    if (result.indexOf("lastUpdated") >= 0) {
+      val subStrings = result.split(",")
       for (i <- subStrings.indices) {
         if (subStrings(i).indexOf("lastUpdatedEpoch") >= 0) {
           subStrings(i) = subStrings(i).replaceAll("(\\d+)", "0")
@@ -266,10 +268,14 @@ abstract class HistoryServerSuite extends SparkFunSuite with BeforeAndAfter with
           subStrings(i) = regex.replaceAllIn(subStrings(i), "\"lastUpdated\" : \"\"")
         }
       }
-      subStrings.mkString(",")
-    } else {
-      json
-    }
+      result = subStrings.mkString(",")
+    }
+    // logSourceName and logSourceFullPath contain environment-specific absolute paths
+    result = "\"logSourceName\"\\s*:\\s*\"[^\"]*\"".r
+      .replaceAllIn(result, "\"logSourceName\" : \"\"")
+    result = "\"logSourceFullPath\"\\s*:\\s*\"[^\"]*\"".r
+      .replaceAllIn(result, "\"logSourceFullPath\" : \"\"")
+    result
   }
 
   test("download all logs for app with multiple attempts") {
diff --git a/project/MimaExcludes.scala b/project/MimaExcludes.scala
index 9add6542841e4..c6c012600c3d1 100644
--- a/project/MimaExcludes.scala
+++ b/project/MimaExcludes.scala
@@ -42,7 +42,11 @@ object MimaExcludes {
     ProblemFilters.exclude[DirectMissingMethodProblem]("org.apache.spark.ui.ProxyRedirectHandler#ResponseWrapper.sendRedirect"),
     ProblemFilters.exclude[IncompatibleMethTypeProblem]("org.apache.spark.ui.ProxyRedirectHandler#ResponseWrapper.this"),
     // [SPARK-55228][SQL] Implement Dataset.zipWithIndex in Scala API
-    ProblemFilters.exclude[ReversedMissingMethodProblem]("org.apache.spark.sql.Dataset.zipWithIndex")
+    ProblemFilters.exclude[ReversedMissingMethodProblem]("org.apache.spark.sql.Dataset.zipWithIndex"),
+    // [SPARK-55793][CORE] Add multiple log directories support to SHS
+    ProblemFilters.exclude[DirectMissingMethodProblem]("org.apache.spark.status.api.v1.ApplicationAttemptInfo.apply"),
+    ProblemFilters.exclude[DirectMissingMethodProblem]("org.apache.spark.status.api.v1.ApplicationAttemptInfo.copy"),
+    ProblemFilters.exclude[MissingTypesProblem]("org.apache.spark.status.api.v1.ApplicationAttemptInfo$")
   )
 
   // Exclude rules for 4.1.x from 4.0.0