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Posted to dev@rocketmq.apache.org by GitBox <gi...@apache.org> on 2022/08/04 02:21:03 UTC
[GitHub] [rocketmq] fujian-zfj opened a new issue, #4771: In HA mode, if you do not truncate consumerOffsetMap, it may cause a bug
fujian-zfj opened a new issue, #4771:
URL: https://github.com/apache/rocketmq/issues/4771
**BUG REPORT**
1.nodes in syncStatusSet all not available.
2.enableElectUnCleanMaster = true, slave3 was chosen to be master.
3.slave4 tried to truncate commitLog.
4.slave4 was chosen to be master and continued to append new message to commitLog.
5.consumer started to consume message from consumerOffset.
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[GitHub] [rocketmq] lizhimins commented on issue #4771: In HA mode, if you do not truncate consumerOffsetMap, it may cause a bug
Posted by GitBox <gi...@apache.org>.
lizhimins commented on issue #4771:
URL: https://github.com/apache/rocketmq/issues/4771#issuecomment-1217783384
We should avoid using EnableElectUncleanMaster.
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[GitHub] [rocketmq] lizhanhui commented on issue #4771: In HA mode, if you do not truncate consumerOffsetMap, it may cause a bug
Posted by GitBox <gi...@apache.org>.
lizhanhui commented on issue #4771:
URL: https://github.com/apache/rocketmq/issues/4771#issuecomment-1211515886
I believe this is a design flaw. Leader/master nodes shall **ONLY** replicate their WAL logs to their peers/slaves. All activities, including updates of consume-offsets, should be reflected in the WAL log. Peer nodes and slaves restore state machines by replaying WAL.
The current implementation has more than one replication path, this is the root cause of the discrepancy.
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[GitHub] [rocketmq] github-actions[bot] commented on issue #4771: In HA mode, if you do not truncate consumerOffsetMap, it may cause a bug
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on issue #4771:
URL: https://github.com/apache/rocketmq/issues/4771#issuecomment-1694527611
This issue was closed because it has been inactive for 3 days since being marked as stale.
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[GitHub] [rocketmq] github-actions[bot] closed issue #4771: In HA mode, if you do not truncate consumerOffsetMap, it may cause a bug
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] closed issue #4771: In HA mode, if you do not truncate consumerOffsetMap, it may cause a bug
URL: https://github.com/apache/rocketmq/issues/4771
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[GitHub] [rocketmq] github-actions[bot] commented on issue #4771: In HA mode, if you do not truncate consumerOffsetMap, it may cause a bug
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on issue #4771:
URL: https://github.com/apache/rocketmq/issues/4771#issuecomment-1690797497
This issue is stale because it has been open for 365 days with no activity. It will be closed in 3 days if no further activity occurs.
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[GitHub] [rocketmq] RongtongJin commented on issue #4771: In HA mode, if you do not truncate consumerOffsetMap, it may cause a bug
Posted by GitBox <gi...@apache.org>.
RongtongJin commented on issue #4771:
URL: https://github.com/apache/rocketmq/issues/4771#issuecomment-1204701525
Good catch! I think we'd better correct consumerOffset while truncating the commitlog. Could you submit a pull request to fix the issue?
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