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https://issues.apache.org/jira/browse/HDFS-17508?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17842777#comment-17842777
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ASF GitHub Bot commented on HDFS-17508:
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goiri merged PR #6783:
URL: https://github.com/apache/hadoop/pull/6783
> RBF: MembershipStateStore can overwrite valid records when refreshing the
> local cache
> -------------------------------------------------------------------------------------
>
> Key: HDFS-17508
> URL: https://issues.apache.org/jira/browse/HDFS-17508
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: rbf
> Affects Versions: 3.3.4
> Reporter: Danny Becker
> Priority: Major
> Labels: pull-request-available
>
> When the MembershipStore refreshes its cache, it will also call the
> overrideExpiredRecords() method, which will write the Expired state back to
> the state store. Due to a race condition this logic can overwrite valid
> records. overrideExpiredRecords should first check if the state of the record
> is already set to "EXPIRED" before it writes the record to the state store.
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