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https://issues.apache.org/jira/browse/HBASE-25994?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Kyle Purtell updated HBASE-25994:
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Status: Patch Available (was: Open)
> Active WAL tailing fails when WAL value compression is enabled
> --------------------------------------------------------------
>
> Key: HBASE-25994
> URL: https://issues.apache.org/jira/browse/HBASE-25994
> Project: HBase
> Issue Type: Bug
> Affects Versions: 2.5.0
> Reporter: Andrew Kyle Purtell
> Assignee: Andrew Kyle Purtell
> Priority: Major
> Fix For: 3.0.0-alpha-1, 2.5.0
>
>
> Depending on which compression codec is used, a short read of the compressed
> bytes can cause catastrophic errors that confuse the WAL reader. This problem
> can manifest when the reader is actively tailing the WAL for replication. The
> input stream's available() method sometimes lies so cannot be relied upon. To
> avoid these issues, when WAL value compression is enabled, ensure all bytes
> of the compressed value are read before submitting the payload to the
> decompressor.
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