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Chris LuandGitHub
1c917ffacb
Two follow-ups on PR #9382: 1. Quarantine wasn't sticky. Once CollectHeartbeat crossed the streak threshold and hid the replica, a subsequent successful read called checkReadWriteError(nil), wiping the streak; the next heartbeat then re-announced the suspect replica as read-only and master could send reads back to a disk that already failed IoErrorTolerance. Added an ioErrorQuarantined sticky flag set on the first heartbeat that observes the threshold and cleared only by MarkVolumeWritable (resetIoErrorState). clearIoError continues to reset just the streak so successful ops don't accumulate phantom errors. 2. Streamed reads bypassed the EIO counter. readNeedleDataInto and ReadNeedleBlob — the hot paths for large/range GETs — returned ReadNeedleData / needle.ReadNeedleBlob errors without threading them through checkReadWriteError, so a disk failing only on those paths would never trip IoErrorTolerance. Both now route the backend error through the tracker, and a fully clean readNeedleDataInto call clears the streak. Tests cover the sticky flag (TestQuarantineIsSticky) and the streamed read path (TestReadNeedleBlobTracksEIO via a fake EIO backend).