Fix Bug with Concurrent Snapshot and Index Delete #73456
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Fix state machine bug that fixes the incorrect assumption a finished snapshot delete could only start shard snapshots when in fact it can also move snapshots to a completed state.
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Pinging @elastic/es-distributed (Team:Distributed) |
DaveCTurner
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May 27, 2021
.../internalClusterTest/java/org/elasticsearch/snapshots/DedicatedClusterSnapshotRestoreIT.java
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tlrx
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May 27, 2021
| changed = true; | ||
| if (updatedEntry.state().completed()) { |
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sorry if this is a stupid remark but should we do the same thing for the cloning path?
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No worries :) The clone path isn't affected by this, the logic there is different and always sets the snapshot overall state correctly. Also, there cannot be a concurrent removal of shards for clones anyway :)
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Fixes the incorrect assumption in the snapshot state machine that a finished snapshot delete could only start shard snapshots: in fact it can also move snapshots to a completed state.
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Fixes the incorrect assumption in the snapshot state machine that a finished snapshot delete could only start shard snapshots: in fact it can also move snapshots to a completed state.
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May 27, 2021
Adds docs to the release notes for 7.9-7.12 recording elastic#73456 as a known issue.
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Thanks David!! |
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* master: (1643 commits) Make DataStreamsSnapshotsIT resilient to failures because of local time. (elastic#73516) Upgrade netty to 4.1.63 (elastic#73011) [DOCS] Create a new page for dissect content in scripting docs (elastic#73437) Deprecate freeze index API (elastic#72618) [DOCS] Remove 'closed data stream' reference [DOCS] Update alias references (elastic#73427) [DOCS] Create a new page for grok content in scripting docs (elastic#73118) Remove dependency on azure shadowjar since it's no longer required [DOCS] Update backport policy for known issues (elastic#73489) Shadowed dependencies should be hidden from pom dependencies (elastic#73467) Disable transitive dependencies when resolving bwc JDBC driver artifact (elastic#73448) Print full JVM implementation version at start of build (elastic#73439) [DOCS] Update snapshot/restore for data stream aliases (elastic#73438) Upgrade Azure SDK and Jackson (elastic#72833) (elastic#72995) [DOCS] Fix typo (elastic#73337) (elastic#73474) [DOCS] Fix typo (elastic#73444) (elastic#73472) [DOCS] Update alias security for data stream aliases (elastic#73436) Fix Bug with Concurrent Snapshot and Index Delete (elastic#73456) [DOCS] Move common scripting use cases up a level (elastic#73445) Add more validation for data stream aliases. (elastic#73416) ...
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The known-issue docs give the impression that an upgrade will restore the lost data in the repository. This isn't the case, so this commit clarifies this in the docs. Relates elastic#73456 Relates elastic#75598 Relates elastic#79221
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Fix state machine bug that fixes the incorrect assumption a finished snapshot delete
could only start shard snapshots when in fact it can also move snapshots to a
completed state.