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* filer: identify remote-mounted entries safe to drop under disk pressure ListEvictableRemoteEntries walks every mounted directory directly on the filer store (no lazy remote listing) and returns entries that hold local chunks fully synchronized with remote, ordered oldest-cached first. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> * filer: evict remote-cached chunks oldest-first and vacuum the garbage uncacheRemoteEntry applies the same transition remote.uncache does - cleared chunks plus a reset LastLocalSyncTsNs under the entry path lock - and evictRemoteCachedEntries serializes passes over all mounts until a byte target is met. Aged victims are preferred; a second pass accepts any synchronized cached entry when aged ones cannot cover the request, since a failed read is worse than a dropped hot object. Cleared chunks only become disk space after compaction, so reclaimRemoteCacheSpace pairs each pass with a rate-limited VacuumVolume call that also picks up orphaned partial fills. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> * filer: trigger remote cache eviction under storage pressure A periodic check (30s) reads disk usage from master topology and evicts remote-mounted cached chunks once any disk crosses -filer.remoteCacheEvictThreshold (default 0.9; 0 disables), with a vacuum pass to reclaim the tombstoned needles. The cold-read cache path also kicks the same reclaim when a fill fails on exhausted volumes - the request still falls back to streaming from the remote, but the cache stops being permanently wedged full. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> * filer: flush deletion queue before remote cache vacuum Vacuum ran immediately after eviction while evicted file IDs still sat in the asynchronous deletion queue, so compaction saw no garbage and the cache stayed wedged. Flush the queue synchronously first and shorten the vacuum cooldown so sustained pressure does not wait five minutes between reclaim passes. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> * test: cover remote cache eviction under capacity pressure Unit tests pin the eligibility filter and oldest-first ordering; the integration test runs a constrained two-node setup that saturates the cache, verifies the oldest synced entry is evicted and vacuumed, and that a later read re-caches it. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> * filer: coalesce remote cache reclaim passes A failed cache fill used to queue behind any in-flight eviction, stacking full mount traversals during a write-failure storm. Skip the pass when one is already running; the caller falls back to streaming from remote regardless. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> * filer: stop the remote cache janitor on shutdown The eviction ticker kept running after Shutdown closed the metadata store and could traverse a closed store. Give the janitor a context cancelled from Shutdown and propagate it into its master RPCs and traversals. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> * filer: vacuum only tombstoned volumes and retry deferred passes VacuumVolume with no volume id swept every collection, compacting volumes unrelated to the cache fill that failed. Now the reclaim path collects the vids of file ids actually flushed from the deletion queue and compacts only those. Vids that land inside the vacuum cooldown stay in a pending set the janitor retries on each tick, so chunks evicted just after a sweep are not stranded until the next pressure event. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> * filer: count only pressured disks when evicting remote cache The janitor measured the largest excess on one disk but let bytes on healthy disks satisfy the reclaim target. Split the topology disk view per physical disk and count only chunk bytes whose volumes sit on an over-threshold disk; entries contributing nothing there are skipped. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> * filer: compare remote cache sync time at nanosecond precision Second-precision mtime comparisons let a local write in the same second as the last sync still qualify as evictable, discarding unsynced changes. Compare LastLocalSyncTsNs against full-precision mtime (mtime_ns round-trips through the entry codec), and apply the same fix to remote.uncache's inline check. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> * filer: invalidate remote sync stamp on local content change A local overwrite that keeps the remote entry's LastLocalSyncTsNs looks evictable even though the remote copy no longer matches, and some write paths stamp mtime at second precision so a timestamp comparison cannot catch it. UpdateEntry now clears the stamp when chunks change without a fresh stamp, leaving replicated updates authoritative. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> * filer: bound remote cache master rpcs and vacuum all evicted garbage VolumeList and VacuumVolume now run under a 30s context so a stalled master cannot wedge the eviction janitor. The targeted vacuum drops the garbage threshold so volumes with under 10% deleted bytes still compact. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> * test: tolerate straggler fills in remote cache eviction test Detached fills from the concurrent wave keep racing the final checks: live chunks legitimately fill both volumes, and a re-cached object can be evicted again before its commit is observed. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> * filer: start remote cache eviction loop after filer init The janitor's first tick dereferences fs.filer; starting the goroutine before NewFiler assigns it could panic when startup exceeds an interval. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> * filer: keep remote cache vacuum intent across retries Evicted entries now record their chunk volumes for vacuum directly, so the intent survives whoever consumes the shared deletion queue first. A pending volume keeps several vacuum attempts so tombstones that land late are still compacted, and the janitor retries pending volumes under the reclaim mutex instead of flushing unrelated deletes every tick. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> * filer: bound each remote cache vacuum request independently A shared 30s deadline across pending volumes let one slow compaction cancel the rest. Each VacuumVolume now gets its own context, and pending volumes keep more attempts since the master reports request acceptance rather than compaction. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> * test: tighten remote cache reclamation bound Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> * filer: treat chunk timestamp changes as content changes chunksEqual now also compares ModifiedTsNs so an update that rewrites a chunk record still invalidates the remote sync stamp. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> * filer: run remote cache queue flush under the reclaim context BatchDelete for flushed file ids now uses the caller's context instead of context.Background(), so a reclaim pass bounded by shutdown or timeout stops its deletes too. Other callers keep their existing behavior. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> * filer: scope remote cache vacuum to evicted volumes The flush no longer feeds the shared deletion queue's ids into the pending set — only evicted chunks' volumes are tracked, so ordinary deletions no longer pick up repeated vacuum attempts. The flush also runs under a shutdown-immune bounded context and is skipped when no volume is pending. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> * filer: retry remote cache vacuums even after unmount Pending volumes were only retried while a remote mount existed; removing the last mount skipped every later pass and left evicted bytes allocated. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> * filer: reclaim partial cache fills that run out of capacity A fill that fails midway queues its written chunks for deletion, but when no entries remain evictable the reclaim pass found no pending volumes and skipped the flush and vacuum entirely, leaving the partial garbage to the slow periodic vacuum while the disk stayed full. Mark the failed fill's chunk volumes pending so the pass tombstones and compacts them even when nothing was evicted. Generated with [Devin](https://devin.ai) Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com> --------- Co-authored-by: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>
see https://blog.aqwari.net/xml-schema-go/ 1. go get aqwari.net/xml/cmd/xsdgen 2. Add EncodingType element for ListBucketResult in AmazonS3.xsd 3. xsdgen -o s3api_xsd_generated.go -pkg s3api AmazonS3.xsd 4. Remove empty Grantee struct in s3api_xsd_generated.go 5. Remove xmlns: sed s'/http:\/\/s3.amazonaws.com\/doc\/2006-03-01\/\ //' s3api_xsd_generated.go