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https://issues.apache.org/jira/browse/HBASE-25525?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bharath Vissapragada resolved HBASE-25525.
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Resolution: Fixed
Thanks [~gjacoby], looks like this is not needed in other branches, resolving.
> WALKey Extended Attributes don't serialize to ReplicationSink
> -------------------------------------------------------------
>
> Key: HBASE-25525
> URL: https://issues.apache.org/jira/browse/HBASE-25525
> Project: HBase
> Issue Type: Bug
> Components: Replication
> Affects Versions: 1.5.0, 1.6.0
> Reporter: Geoffrey Jacoby
> Assignee: Geoffrey Jacoby
> Priority: Major
> Fix For: 1.7.0
>
>
> HBASE-22622 introduced extended attributes on the WALKey object and protobuf,
> and HBASE-22623 created a coprocessor hook, preWALAppend, so that
> coprocessors can create and insert their own extended attributes.
> These attributes are readable on the source-side, such as in a custom
> ReplicationEndpoint. However, in branch-1 ReplicationProtbufUtil doesn't
> correctly populate the extended attributes on the WALKey protobuf. (In 2.1+,
> HBASE-20625 incidentally fixes this as part of a larger refactoring of
> WALCellCodec logic.)
> This means that a custom ReplicationSink can't read extended attributes on a
> WALKey.
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