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https://issues.apache.org/jira/browse/HBASE-22480?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16968067#comment-16968067
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Lijin Bin commented on HBASE-22480:
-----------------------------------

[~anoop.hbase] in contrast,i find the latest patch do not applies, so i need to 
update the patch?

> Get block from BlockCache once and return this block to BlockCache twice make 
> ref count error.
> ----------------------------------------------------------------------------------------------
>
>                 Key: HBASE-22480
>                 URL: https://issues.apache.org/jira/browse/HBASE-22480
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Lijin Bin
>            Assignee: Lijin Bin
>            Priority: Major
>         Attachments: HBASE-22480-master-v1.patch, 
> HBASE-22480-master-v2.patch, HBASE-22480-master-v3.patch, 
> HBASE-22480-master-v4.patch, HBASE-22480-master-v5.patch
>
>
> After debugging HBASE-22433, i find the problem it is that we get a block 
> from BucketCache once and return this block to BucketCache twice and make the 
> ref count error, sometimes the refCount can be negative.



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