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https://issues.apache.org/jira/browse/HBASE-2359?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12848801#action_12848801
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Jean-Daniel Cryans commented on HBASE-2359:
-------------------------------------------

We'll need to assume to the same for Sequencefile.Reader.getPosition() since we 
will want to keep account of how many bytes we read while splitting logs and 
ideally keep it to a fixed size. I currently do that for HBASE-2223 in order to 
not blow up the heap when tailing the HLogs.

> WALEdit doesn't implement HeapSize
> ----------------------------------
>
>                 Key: HBASE-2359
>                 URL: https://issues.apache.org/jira/browse/HBASE-2359
>             Project: Hadoop HBase
>          Issue Type: Bug
>    Affects Versions: 0.20.3
>            Reporter: Jean-Daniel Cryans
>            Assignee: Kannan Muthukkaruppan
>             Fix For: 0.20.4, 0.21.0
>
>
> WALEdit from HBASE-2283 defines a method heapSize() but doesn't implement 
> HeapSize.
>  - Make it implement the interface.
>  - Add a test to TestHeapSize.

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