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https://issues.apache.org/jira/browse/HDFS-16869?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDFS-16869:
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Labels: pull-request-available (was: )
> Fail to start namenode owing to 0 size of clientid recorded in edit log.
> ------------------------------------------------------------------------
>
> Key: HDFS-16869
> URL: https://issues.apache.org/jira/browse/HDFS-16869
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 3.3.1, 3.3.2, 3.3.3, 3.3.4
> Reporter: Daniel Ma
> Assignee: Daniel Ma
> Priority: Major
> Labels: pull-request-available
>
> We first encounter this issue in 3.3.1 version when we are upgrading from
> 3.1.1 to 3.3.1 which may cause NameNode start failure but just occasionally
> not everytime.
> The root cause for why 0 size of clientid happened here is still not found
> after long-term investigating.
> So here we add a protection judge here to exlude 0 size of clientid from be
> added into cache.
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