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Posted to issues@kylin.apache.org by "nichunen (JIRA)" <ji...@apache.org> on 2019/07/17 07:07:00 UTC
[jira] [Reopened] (KYLIN-4039) ZookeeperDistributedLock may not
release lock when unlock operation was interrupted
[ https://issues.apache.org/jira/browse/KYLIN-4039?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
nichunen reopened KYLIN-4039:
-----------------------------
> ZookeeperDistributedLock may not release lock when unlock operation was interrupted
> -----------------------------------------------------------------------------------
>
> Key: KYLIN-4039
> URL: https://issues.apache.org/jira/browse/KYLIN-4039
> Project: Kylin
> Issue Type: Bug
> Reporter: PENG Zhengshuai
> Assignee: PENG Zhengshuai
> Priority: Major
> Fix For: v3.0.0-alpha2
>
>
> ZookeeperDistributedLock may hold the lock and not release it when the unlock operation was interrupted.
> Because the unlock operation contains two steps:
> 1. peekLock: get the owner of the lock
> 2. purgeLock: purge the lock if the owner of the lock is the current client.
> If the peekLock step is interrupted, the purgeLock step won't be executed. Thus the lock won't be released.
> Meanwhile, the lock operation should also consider the interrupt cases.
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