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https://issues.apache.org/jira/browse/HBASE-20789?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16524801#comment-16524801
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Duo Zhang commented on HBASE-20789:
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I think the basic assumption for block cache implementation is that the content
for a key will never change. So it will be buggy if the content can be changed.
I think we need to find a way to make it immutable, instead of adding more
checks in BucketCache.
> TestBucketCache#testCacheBlockNextBlockMetadataMissing is flaky
> ---------------------------------------------------------------
>
> Key: HBASE-20789
> URL: https://issues.apache.org/jira/browse/HBASE-20789
> Project: HBase
> Issue Type: Bug
> Reporter: Zheng Hu
> Assignee: Zheng Hu
> Priority: Major
> Attachments: bucket-33718.out
>
>
> The UT failed frequently in our internal branch-2... Will dig into the UT.
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