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[WIP] CAS draft (adopting to CI/CD, not for review / merge) - #2073

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filimonov wants to merge 5911 commits into

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cas-gc-rebuild

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[WIP] CAS draft (adopting to CI/CD, not for review / merge)#2073
filimonov wants to merge 5911 commits into
antalya-26.6from
cas-gc-rebuild

This pull request is big! We're only showing the most recent 250 commits

Commits on Sep 26, 2026
- docs(cas): spec rev.6 for CAS-95.1/95.2 after codex review round 5
  
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- docs(cas): spec rev.7 for CAS-95.1/95.2 after codex review round 6; review loop closed
  
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- docs(cas): spec rev.7 body for CAS-95.1/95.2
  
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- docs(cas): design study rev.1, table-level files as refs and dedup claims in the ref log
  
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- docs(cas): probe of non-MergeTree engines on a CAS disk; CAS-318 persistent Join/Set insert failure
  
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- docs(cas): design study rev.2, table directory entries in the ref log; round-1 report
  
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- docs(cas): design study closed after codex round 2; conclusion points back to the cache with mount-time population
  
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- docs(cas): spec rev.8 for CAS-95.1/95.2, namespace file names populated at mount
  
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- docs(cas): spec rev.9 for CAS-95.1/95.2 after codex review round 7
  
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- docs(cas): round-7 codex report for the directory-probes spec
  
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- docs(cas): close the CAS-95.2 review loop after codex round 8; decision: implement CAS-95.1 only
  
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Commits on Sep 27, 2026
- docs(cas): spec section 0 correction: the lease protocol bounds predecessor stragglers in time
  
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- docs(cas): spec rev.10 keeps only CAS-95.1; CAS-95.2 marked doubtful with its challenges
  
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- docs(cas): CAS-95.2 note: invalidate-on-write cache as the candidate mechanism
  
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  295c4b2
- docs(cas): spec rev.11 for CAS-95.1 after codex review round 9
  
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  61f5dec
- docs(cas): spec rev.12 for CAS-95.1 after codex review round 10; review loop closed
  
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  d3123d0
- docs(cas): spec rev.12 body for CAS-95.1
  
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  a2217b6
- docs(cas): CAS-319, upstream checkSize should decide projections by the .proj suffix before probing the disk
  
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  b42dcbb
- docs(cas): spec rev.13 for CAS-95.1: end-to-end test as stateless DETACH/ATTACH
  
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  7c958d5
- docs(cas): implementation plan for CAS-95.1, part-file directory probes without an S3 LIST
  
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  9f24787
- docs(cas): CAS-95.1 in progress, branch and plan recorded
  
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  724b50a
- docs(cas): CAS-95.1 branch reviews (opus final review, codex gpt-6-astra)
  
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- docs(cas): CAS-95.1 pushed, PR #2440 opened
  
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- docs(cas): product-level backlog for project management
  
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Commits on Sep 28, 2026
Commits on Sep 29, 2026
Commits on Sep 30, 2026
- utils(cas-yardstick): allow rm-prefix 30 minutes for a full run's prefix
  
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- utils(cas-yardstick): full seven-card reference run, run-time table, --quick as the frequent run
  
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- utils(cas-yardstick): test the pass_seconds writer, spell out reference acceptance and run ids
  
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- docs(cas): GC request-cuts plan: every gtest and probe run under a memory cap
  
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- docs(cas): yardstick design rev.4: attach_200 detaches permanently before the cold restart, wide_insert hot inserts different values
  
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- docs(cas): GC request-cuts: the retained Etag key carries the namespace and is charged per manifest
  
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- utils(cas-yardstick): report failed repeats, cached ratios, GC ranges and a run header
  
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- utils(cas-yardstick): smoke check matches the FAILED (n of K repeats ok) cell
  
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- utils(cas-yardstick): cold attach_200 loads an unloaded table; scale rows; stop workers on Ctrl-C
  
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- utils(cas-yardstick): content-hash workload identity, one-SIGTERM server stop, bounded prefix removal
  
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- utils(cas-yardstick): README states what cold means, how to start RustFS, and the new cells
  
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- docs(cas): monitoring page says to start and stop RustFS around a yardstick run
  
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- docs(cas): GC request-cuts A2: every take is a candidate by construction; a non-candidate take is an invariant violation
  
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- docs(cas): GC request-cuts A2: the top-up runs before the shard's first take, not at shard start
  
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- utils(cas-yardstick): replace the reference with run 20260930T055649Z
  
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- utils(cas-yardstick): README numbers from reference 2026-09-30-647dbf9dfe9
  
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  b810b48
- docs(cas): yardstick design rev.5: workload hash, clean stop, what cold loads, cached ratios, failed repeats
  
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- utils(cas-yardstick): README states that the RustFS port is fixed
  
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- docs(cas): yardstick design rev.5: rm-prefix deadlines, --quick, run times, informational git_rev
  
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- utils(cas-yardstick): a GC round cut by a server stop does not stay open
  
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- utils(cas-yardstick): re-accept the reference at the new workload hash; README precision
  
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- backlog(cas): CAS-321.1 done — cas-yardstick with a checked-in reference
  
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- backlog: CAS-322 (CAS-S3 stress pre-stress restart budget), CAS-177 CI state on dd44241da88f
  
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- backlog: CI evidence of the _files LIST storm at table load (CAS-95), link from CAS-322
  
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  da67ae5
- backlog(cas): CAS-322 and CAS-95.1: request breakdown of the failing stress start
  
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- backlog(cas): CAS-323: single-flight follower checks its resolved manifest id
  
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- backlog(cas): CAS-135: LIST is also lost from GC phase rows; fresh evidence
  
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- backlog(cas): CAS-135: site inventory of off-thread GC requests and facts for the fix
  
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- backlog(cas): CAS-30: second confirmation of the stale meta-delete race; adjudication report
  
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- backlog(cas): soak end checkpoint races fsck against the dry-run; RCA report
  
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- backlog(cas): CAS-284.5: janitor `_ckpt`/`_files` deletes as a second consumer of conditional bulk deletes
  
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- backlog(cas): CAS-284.5: per-key deletes are most of the janitor's remaining requests
  
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- backlog(cas): CAS-325: probeSentinel throws at an exact-deadline retry pause (flaky gtest, 6e-4)
  
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- backlog(cas): CAS-324: the end-checkpoint race also fails the leak verdict on long GC rounds
  
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- backlog(cas): GC request-cuts outcome: A0 blocked by CAS-30, A2 rejected, A4 and B4 not accepted yet
  
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- backlog(cas): GC phase shares and memo hit-rate estimate from the otel.demo stand
  
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- backlog(cas): CAS-83, CAS-146: the part-removal flow writes two of three manifest PUTs on otel.demo
  
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- docs(cas): design for CAS-30: a `.meta` delete removes only the condemnation it was scheduled for
  
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- backlog(cas): GC round numbers can regress after a lost `gc/state`
  
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- backlog(cas): CAS-326: the round regression needs an absent `gc/state` and lost generations
  
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- utils(ca-soak): before/after GC measurement scripts for the stand
  
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- backlog(cas): CAS-83 design: one ref drop per removed part; follow-ups for fetch, clones and projection sub-parts
  
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- backlog(cas): janitor batches on long ref streams and the memo's reuse distance, measured
  
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- backlog(cas): CAS-83 measured: cycle PUT -56%, GET -43%, wall -44% on the yardstick
  
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- docs(cas): research report: a publisher clears the GC marker on its own fresh incarnation
  
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  dce574a
- docs(cas): full research report on the publisher-clears-marker defect
  
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  4568c41
- backlog(cas): CAS-83 PR #2452 opened
  
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  ac94aa7
- backlog(cas): CAS-328 tolerant readers for every on-store object
  
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- backlog(cas): CAS-328 becomes removal of the KeyStrictness switch
  
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- backlog(cas): CAS-328 in progress
  
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- backlog(cas): CAS-328 PR #2455 opened
  
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- backlog(cas): request-cuts branch parked; memo and janitor decisions and measurement ledger
  
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- backlog(cas): CAS-30 decision C; CAS-329 request cuts and CAS-330 persisted marker etag
  
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- backlog(cas): CAS-331 design study: token-carrying condemn marker, writers delete it
  
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- backlog(cas): CAS-177 upstream forward-port PR #123134
  
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- backlog(cas): CAS-30 PR1 = minimal fix; V1/V2r/V3 study recorded in CAS-329; CAS-331 done
  
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- spec(cas): Grafana dashboards v1 design (CAS-289.1)
  
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  0c10d21
- backlog(cas): CAS-30 PR1 adds read-ahead for graduation marker reads
  
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- backlog: CAS-332 stress hung-check return-item (fuzzer insert, no cancellation in writeTempPart)
  
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- backlog(cas): CAS-29.9 spec in progress
  
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- backlog(cas): CAS-74 cas_selects reds on PRs 2452/2455 are the port-exhaustion class
  
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- spec(cas): Grafana dashboards — one Drilldown board instead of three detail boards
  
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- backlog(cas): CAS-333 acked ALTER DELETE leaves rows behind (cas_lightweight_delete_4)
  
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  0bbc02e
- backlog(cas): CAS-333 is the CAS-252 mutation-registration race; occurrence recorded
  
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- plan(cas): Grafana dashboards v1 implementation plan (CAS-289.1)
  
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- cas-grafana: Grafana REST client limited to the two owned dashboard uids
  
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  0c27fb5
- cas-grafana: panel factories, flow layout and dashboard skeleton
  
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- cas-grafana: offline checks for metric names, banned signals, descriptions and links
  
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- cas-grafana: live verification, push and export scripts
  
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- cas-grafana: CAS / Overview status tiles
  
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- cas-grafana: CAS / Overview rows
  
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- cas-grafana: CAS / Drilldown GC rows
  
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- backlog(cas): CAS-334 writer never clears a Condemned marker; CAS-30 residuals accepted for PR1
  
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- backlog(cas): CAS-334 acceptance criteria
  
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- cas-grafana: CAS / Drilldown Writes rows; tables carry epoch ms, not DateTime
  
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- cas-grafana: CAS / Drilldown S3 rows and the nonzero-counters row
  
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- cas-grafana: per-round and per-phase GC panels use the CAS-semantic counters
  
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- cas-grafana: README and the Dashboards section of operations/monitoring.md
  
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  c59dfdc
- backlog(cas): CAS-289.3 dashboard v2, CAS-289.4 lifecycle CurrentMetrics, CAS-289.5 ca-soak port; blockers linked
  
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- cas-grafana: review fixes — Wedged lanes NULL-guarded, GC outcome bars get fixed colors
  
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  265e0a6
- spec(cas): GC janitor batch deletes and a time budget (CAS-29.9), r8 after five codex rounds
  
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  404127d
- cas-grafana: fixes from the first browser check
  
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  c35445d
- backlog(cas): CAS-30 upgrades out of scope; RG dropped
  
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  20c27d3
- spec(cas): CAS-30 stale-meta delete fix, r9 (G1 + round checks + re-stamp + graduation read-ahead)
  
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- backlog(cas): CAS-30 spec approved
  
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- spec(cas): GC janitor batch deletes, pipeline and soft time budget (CAS-29.9), r10
  
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- backlog(cas): CAS-29.9 spec r10, proceed to plan
  
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Commits on Oct 1, 2026
- plan(cas): CAS-30 stale-meta delete fix
  
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  496ed39
- plan(cas): CAS-29.9 janitor batches, pipeline and time budget
  
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- backlog: CAS-335 S3 client test flake under host load
  
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- model(cas): condemn-marker gate with round rules, PR1 cfgs and results
  
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- model(cas): fix condemn-marker model prose, runner count parse and Next labelling
  
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  12d6e98
- Caption the two regression tables by reproducibility
  
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  11fb3a8
- spec(cas): janitor wraps once when a pass began mid-stream
  
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- spec(cas): graduation scan stops at a touched row; head hints count until the fold ends
  
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- backlog: CAS-336 ProfileEvent for GC blob .meta GETs
  
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  dba6dbc
- cas-grafana: pool inventory row and Objects row — counts, flows and bytes per object class
  
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- backlog(cas): CAS-289.6 object counts and bytes per class; linked from CAS-289.3 and CAS-11
  
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- backlog: CAS-30 PR1 ready, -pr branch and PR body
  
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- cas-grafana: inventory totals per round as separate panels, GC state size, CAS metrics only
  
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  2991648
- backlog: CAS-337 per-key deletes on the GC I/O pool, CAS-338 fold_ref_intake GET attribution
  
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- backlog: CAS-30 PR #2463 opened
  
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  ee5db2c
- report(cas): CAS-29.9 janitor batches A/B on the local stand
  
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- report(cas): CAS-29.9 A/B: M3 not measured, unresolved extra deletes, findings
  
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- backlog: CAS-29.9 ready, -pr branch and PR body
  
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- backlog: CAS-29.9 PR #2468 opened
  
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  fa35b7c
- cas-grafana: Objects rows per stored type — blobs, manifests, refs, namespaces, GC state
  
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  56109d0
- backlog: CI reds on PR #2463 — floating regression ref (CAS-339), lwd3 wall-clock flake (CAS-340), occurrences on CAS-74/252
  
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- backlog: CAS-341 read retry swallows MEMORY_LIMIT_EXCEEDED; ref_catalog contention occurrence on CAS-167
  
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- spec(cas): background mount renewal retries without a lease deadline (CAS-298)
  
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  eb43c88
- spec(cas): gc_io_concurrency 1 runs janitor jobs on one pool thread
  
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  61cc393
- spec(cas): mount renewal r2: observer timestamps, exact stop/park, pacing of resolve reads
  
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  c1cb615
- spec(cas): mount renewal r3: close the four minors of the second review
  
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  fe7fd32
- spec(cas): mount renewal: token-conditional deletes belong to the protected write families
  
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- backlog: CAS-341 reframed — give up with the original exception; no reissue of verdicts on the query; bounded reissue on global memory pressure
  
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  eafdc45
- backlog: CAS-339 is the regression maintainers' call; resolves itself when #2398 merges
  
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  7af512b
- backlog: CAS-342 GC credits a mount sighting before its read
  
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  be05c72
- spec(cas): janitor spec matches the trimmed implementation
  
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  1b3cf19
- backlog: CAS-29.9 PR #2468 head after the simplification rounds
  
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  d753609
- spec(cas): mount renewal r4: rewrite around the renewal loop, retries spaced one second apart
  
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  c394e02
- spec(cas): mount renewal r5: memory pressure (CAS-292), constraints restored after the rewrite
  
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- spec(cas): mount renewal r6: close the findings of the fourth review
  
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  committed
  db5e574
- spec(cas): mount renewal r7: the GC sighting fix (CAS-342) is step one of the spec
  
  filimonov
  and
  claude
  committed
  e151cad
- spec(cas): mount renewal r8: one loop, one renewal path, removed machinery listed with its guarantees
  
  filimonov
  and
  claude
  committed
  734aa6b
- spec(cas): mount renewal r9: step 0 models, readiness kept, remount generations kept, no shared clock
  
  filimonov
  and
  claude
  committed
  4dee78f
- spec(cas): mount renewal r10: further cleanups, unsafe simplifications recorded, lifecycle runner pattern
  
  filimonov
  and
  claude
  committed
  a0356d0
- models: lifecycle runner recognises the singular temporal-violation message
  
  filimonov
  and
  claude
  committed
  44520ad
- models: CaDiskLifecycle with one lease thread that renews and reclaims
  
  filimonov
  and
  claude
  committed
  9a5bbed
- models: CaDiskLifecycle readiness arms the fence on the renewal
  
  filimonov
  and
  claude
  committed
  265f827
- models: CaMountRenewRetryCore renews without a lease deadline
  
  filimonov
  and
  claude
  committed
  5451b25
- models: CaDiskLifecycle one arming rule for reclaim and renewal
  
  filimonov
  and
  claude
  committed
  137d9fa
- models: observer timing of the mount lease, CAS-342 sabotage, late-renewal witness
  
  filimonov
  and
  claude
  committed
  11a0675
- spec(cas): mount renewal r11: conclusions of the TLA+ step, arming rule, readiness without a new state
  
  filimonov
  and
  claude
  committed
  f270143
- spec(cas): mount renewal r12: readiness needs admission budget, unreadable slot retried, honest size estimate
  
  filimonov
  and
  claude
  committed
  eae9380
- spec(cas): mount renewal r13: closure of the seventh review, refusal text narrowed
  
  filimonov
  and
  claude
  committed
  ed72807
- spec(cas): mount renewal: only the runtime's own refusal words the expiry
  
  filimonov
  and
  claude
  committed
  39516b1
- spec(cas): mount renewal: a refusal after an unclear request is retried, not terminal
  
  filimonov
  and
  claude
  committed
  98c0b21
- plan(cas): mount renewal without a lease deadline, part 1: the three fixes
  
  filimonov
  and
  claude
  committed
  a97d50a
Commits on Oct 2, 2026
- backlog(cas): CAS-342, CAS-292, CAS-298 implemented on a local branch, in progress
  
  filimonov
  and
  claude
  committed
  db2a5ad
- plan(cas): one lease thread and one renewal path, part 2 with its contract
  
  filimonov
  and
  claude
  committed
  8dbceca
- spec(cas): notes on mount lease settings that do not say what happens
  
  filimonov
  and
  claude
  committed
  c431918
- backlog(cas): CAS-343 bound one control-plane attempt by a wall-clock deadline
  
  filimonov
  and
  claude
  committed
  c767d17
- spec(cas): answers to three open questions of the mount lease settings notes
  
  filimonov
  and
  claude
  committed
  d227ede
- spec(cas): external study of the mount lease settings
  
  filimonov
  and
  claude
  committed
  bdc4673
- spec(cas): correct the mount lease settings notes after the external study
  
  filimonov
  and
  claude
  committed
  f4be21e
- spec(cas): soak measurements of control-plane PUTs on AWS S3 and GCS
  
  filimonov
  and
  claude
  committed
  4bd4be1
- backlog(cas): CAS-344 soak card S39 for the renewal without a lease deadline
  
  filimonov
  and
  claude
  committed
  16ffe45
- backlog(cas): CAS-298 notes: expiry warning, the simplification branch and follow-ups
  
  filimonov
  and
  claude
  committed
  3dd03aa
- backlog(cas): CAS-298 notes: draft pull requests 2474 and 2475
  
  filimonov
  and
  claude
  committed
  03d0ebe
Commits on Oct 5, 2026
- backlog(cas): CAS-29.9 notes for PR 2483, subtask CAS-29.9.1 for the rest
  
  filimonov
  and
  claude
  committed
  64e3218
- backlog(cas): CAS-29.9.1 notes: draft pull request 2484
  
  filimonov
  and
  claude
  committed
  be5aafd
- docs: record CAS mount lease simplification contract
  filimonov
  committed
  38789bc
- docs: refine CAS lease recovery and PR boundaries
  filimonov
  committed
  c7eee51
Commits on Oct 7, 2026
- model(cas): MarkerPrefetch — the gate decides on the graduation read-ahead's copy of the marker
  
  filimonov
  and
  claude
  committed
  363b419

Commits

Commits on Sep 26, 2026

Commits on Sep 27, 2026

Commits on Sep 28, 2026

Commits on Sep 29, 2026

Commits on Sep 30, 2026