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https://issues.apache.org/jira/browse/RATIS-2154?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17888551#comment-17888551
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yuuka edited comment on RATIS-2154 at 10/11/24 7:57 AM:
--------------------------------------------------------
[~szetszwo]
Hi, Sze!
We may need to discuss this issue further
#RATIS-2162's pr may cause the currentTerm! = expectTerm described in the
current issue to occur again. After triggering Precondition.assert, it will
cause logAppender to restart, although this has little impact.
In fact, we allow a brief termNum mismatch after a new Candidate or Leader
appears, so we just need to use if condition to replace PreCondition.assert and
print the relevant WARN log
was (Author: JIRAUSER306226):
[~szetszwo]
Hi, Sze!
We may need to discuss this issue further
issue#2162's pr may cause the currentTerm! = expectTerm described in the
current issue to occur again. After triggering Precondition.assert, it will
cause logAppender to restart, although this has little impact.
In fact, we allow a brief termNum mismatch after a new Candidate or Leader
appears, so we just need to use if condition to replace PreCondition.assert and
print the relevant WARN log
> The old leader may send appendEntries after term changed
> --------------------------------------------------------
>
> Key: RATIS-2154
> URL: https://issues.apache.org/jira/browse/RATIS-2154
> Project: Ratis
> Issue Type: Wish
> Components: Leader
> Reporter: yuuka
> Assignee: yuuka
> Priority: Major
> Fix For: 3.1.1
>
> Attachments: image-2024-09-12-09-43-30-670.png
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> The leader will become a follower after receiving a higher term, but during
> this process, the old leader may be appending LogEntry, and the error log
> will be printed until LogAppenderDaemon is closed.
> !image-2024-09-12-09-43-30-670.png!
>
> I think we can put state.updateCurrentTerm (newTerm) later. Close LeaderState
> first before updating the term, and other operations remain unchanged.
>
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