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Signed-off-by: Kostiantyn Kostiuk <kkostiuk@redhat.com>
Summary of ChangesHello @kostyanf14, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed! This pull request significantly improves the robustness and maintainability of the server's log fetching component. By refactoring the log retrieval process into a separate method and implementing comprehensive exception handling for common connection-related errors, the server is now more resilient to transient network issues or unexpected WinRM pipeline closures. This change aims to prevent service interruptions and enhance the overall stability of the application. Highlights
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Code Review
This pull request improves the robustness of the server by handling exceptions in the log fetcher thread, which prevents potential crashes. The extraction of the start_server_with_log_fetcher method is a good step for clarity. I've provided a couple of suggestions to further improve the code by enhancing encapsulation and making the error logging more informative for debugging purposes.
| logger('debug', 'server/initialize') { 'deployed' } | ||
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| def start_server_with_log_fetcher |
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This method appears to be a helper for load_toolshck_server and is not used outside of this class. It's good practice to make such methods private to improve encapsulation. You can use private def to make this specific method private.
private def start_server_with_log_fetcherThere was a problem hiding this comment.
it already in the private part
| # still fetching messages, so we need to catch both. | ||
| # In any case, Ether will restart the server before the next command execution, | ||
| # so we won't be left with a hanging thread | ||
| logger('error', 'server/log_fetcher') { "failed to fetch log message: #{e.message}" } |
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For better debugging, it would be helpful to include the exception class in the log message. This is also consistent with how exceptions are logged elsewhere in the codebase, for example in the log_exception method in ether.rb.
logger('error', 'server/log_fetcher') { "failed to fetch log message: [#{e.class}] #{e.message}" }There was a problem hiding this comment.
We don't need to debug this actually, just don't crash the full application.
@YanVugenfirer Maybe report as a warning instead?
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Pull request overview
This PR updates the WinRM server log-fetcher thread to better handle common connection/pipeline shutdown exceptions without taking down the server flow.
Changes:
- Extracted the log fetcher pipeline/file-writing logic into
start_server_with_log_fetcher. - Added a targeted rescue in the log-fetcher thread for several WinRM/socket-related exceptions and logs the failure.
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| # Safe to ignore as the most likely cause is that the pipeline was closed | ||
| # before we finished fetching all messages and we don't want to crash the server | ||
| # in that case. This can happen when the server is stopped while we're still fetching messages. | ||
| # WinRMError be raised instead of Errno::EPIPE when the WinRM connection is closed while we're |
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Grammar in this comment is off: "WinRMError be raised" should be updated (e.g., "WinRMError can be raised") for clarity.
| # WinRMError be raised instead of Errno::EPIPE when the WinRM connection is closed while we're | |
| # WinRMError can be raised instead of Errno::EPIPE when the WinRM connection is closed while we're |
| # so we won't be left with a hanging thread | ||
| logger('error', 'server/log_fetcher') { "failed to fetch log message: #{e.message}" } |
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This rescue path is described as "safe to ignore", but it currently logs at error level. That can create noisy/false-positive error logs during normal shutdown/restart. Consider lowering this to warn/debug, and/or including e.class and only using error for truly unexpected failures.
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