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https://issues.apache.org/jira/browse/HBASE-27640?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Duo Zhang updated HBASE-27640:
------------------------------
    Fix Version/s: 4.0.0-alpha-1
                       (was: 3.0.0-beta-2)

> Optimize writes of zero length values in compressed WALs
> --------------------------------------------------------
>
>                 Key: HBASE-27640
>                 URL: https://issues.apache.org/jira/browse/HBASE-27640
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Andrew Kyle Purtell
>            Priority: Minor
>             Fix For: 4.0.0-alpha-1, 2.7.0
>
>
> If we unconditionally use the compressor, to "write" 0 bytes, then the 
> compression codec will emit overheads... hadoop compressionstream header, 
> compression bitstream header. All of that should be skipped so truly no 
> compressed value data is written when the value is empty. 



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