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Merge pull request #14046 from serathius/pm-publish

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Documentation: Publish v3.5 data inconsistency postmortem
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Marek Siarkowicz 2022-05-17 14:15:59 +02:00 committed by GitHub
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Documentation/postmortems/v3.5-data-inconsistency.md
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@ -4,7 +4,7 @@
|---------|------------|
| Authors | serathius@ |
| Date | 2022-04-20 |
| Status | draft |
| Status | published |
## Summary
@ -115,18 +115,18 @@ To reflect this action items should have assigned priority:
* P1 - Important for long term success of the project. Blocks v3.6 release.
* P2 - Stretch goals that would be nice to have for v3.6, however should not be blocking.
| Action Item | Type | Priority | Bug |
|-------------------------------------------------------------------------------------|----------|----------|-------------------------------------------------|
| etcd testing can reproduce historical data inconsistency issues | Prevent | P0 | |
| etcd detects data corruption by default | Detect | P0 | |
| etcd testing is high quality, easy to maintain and expand | Prevent | P1 | https://github.com/etcd-io/etcd/issues/13637 |
| etcd apply code should be easy to understand and validate correctness | Prevent | P1 | |
| Critical etcd features are not abandoned when contributors move on | Prevent | P1 | https://github.com/etcd-io/etcd/issues/13775 |
| etcd is continuously qualified with failure injection | Prevent | P1 | |
| etcd can reliably detect data corruption (hash is linearizable) | Detect | P1 | |
| etcd checks consistency of snapshots sent between leader and followers | Detect | P1 | https://github.com/etcd-io/etcd/issues/13973 |
| etcd recovery from data inconsistency procedures are documented and tested | Mitigate | P1 | |
| etcd can imminently detect and recover from data corruption (implement Merkle root) | Mitigate | P2 | https://github.com/etcd-io/etcd/issues/13839 |
| Action Item | Type | Priority | Bug |
|-------------------------------------------------------------------------------------|----------|----------|----------------------------------------------|
| etcd testing can reproduce historical data inconsistency issues | Prevent | P0 | https://github.com/etcd-io/etcd/issues/14045 |
| etcd detects data corruption by default | Detect | P0 | https://github.com/etcd-io/etcd/issues/14039 |
| etcd testing is high quality, easy to maintain and expand | Prevent | P1 | https://github.com/etcd-io/etcd/issues/13637 |
| etcd apply code should be easy to understand and validate correctness | Prevent | P1 | |
| Critical etcd features are not abandoned when contributors move on | Prevent | P1 | https://github.com/etcd-io/etcd/issues/13775 |
| etcd is continuously qualified with failure injection | Prevent | P1 | |
| etcd can reliably detect data corruption (hash is linearizable) | Detect | P1 | |
| etcd checks consistency of snapshots sent between leader and followers | Detect | P1 | https://github.com/etcd-io/etcd/issues/13973 |
| etcd recovery from data inconsistency procedures are documented and tested | Mitigate | P1 | |
| etcd can imminently detect and recover from data corruption (implement Merkle root) | Mitigate | P2 | https://github.com/etcd-io/etcd/issues/13839 |
## Timeline
@ -138,5 +138,5 @@ To reflect this action items should have assigned priority:
| 2021-01-28 | Report of data corruption - https://github.com/etcd-io/etcd/issues/13654 |
| 2022-03-08 | Report of data corruption - https://github.com/etcd-io/etcd/issues/13766 |
| 2022-03-25 | Corruption confirmed by one of the maintainers - https://github.com/etcd-io/etcd/issues/13766#issuecomment-1078897588 |
| | Statement about the corruption was sent to etcd-dev@googlegroups.com and dev@kubernetes.io |
| | Release v3.5.3 with fix was published - https://github.com/etcd-io/etcd/releases/tag/v3.5.3 |
| 2022-03-29 | Statement about the corruption was sent to etcd-dev@googlegroups.com and dev@kubernetes.io |
| 2022-04-24 | Release v3.5.3 with fix was published - https://github.com/etcd-io/etcd/releases/tag/v3.5.3 |