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https://issues.apache.org/jira/browse/BOOKKEEPER-567?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13575127#comment-13575127
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Sijie Guo commented on BOOKKEEPER-567:
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this race condition is triggered when SyncThread tried to shutdown bookie
encountering NoWritableLedgerDirException. the sequence is:
1) SyncThread -> transitionToReadOnlyMode -> triggerShutDown
2) triggerShutdown starts a new thread to shutdown bookie. SyncThread joins to
wait shutdown thread finished.
3) Shutdown thread tried to call bookie#shutdown -> SyncThread#shutdown.
4) SyncThread#shutdown checked flushing flag and found it was in flushing
procedure. it doesn't interrupt SyncThread and just wait.
> ReadOnlyBookieTest hangs on shutdown
> ------------------------------------
>
> Key: BOOKKEEPER-567
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-567
> Project: Bookkeeper
> Issue Type: Bug
> Reporter: Sijie Guo
> Fix For: 4.3.0
>
> Attachments: 27376.txt
>
>
> ReadOnlyBookieTest hangs on shutdown. It occurs when I run bookie tests.
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