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https://issues.apache.org/jira/browse/HBASE-22447?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16845517#comment-16845517
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Anoop Sam John commented on HBASE-22447:
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+1
> Check refCount before free block in BucketCache
> -----------------------------------------------
>
> Key: HBASE-22447
> URL: https://issues.apache.org/jira/browse/HBASE-22447
> Project: HBase
> Issue Type: Sub-task
> Components: BucketCache
> Affects Versions: 2.1.0, 2.0.0, 2.2.0
> Reporter: binlijin
> Assignee: binlijin
> Priority: Major
> Attachments: HBASE-22447-master-v1.patch
>
>
> As discuss in HBASE-22433, the ref count checking within the write lock is
> missing, so may refer to corrupt HFileBlock data with BucketCache.
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