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https://issues.apache.org/jira/browse/HBASE-17882?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15958277#comment-15958277
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stack commented on HBASE-17882:
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We could say that hbase2 reads hbase1 WAL files only in release notes, that it
won't read 0.98 or earlier. Would that work?
> Why do the WalEdit implement the Writable interface
> ---------------------------------------------------
>
> Key: HBASE-17882
> URL: https://issues.apache.org/jira/browse/HBASE-17882
> Project: HBase
> Issue Type: Brainstorming
> Reporter: Chia-Ping Tsai
> Priority: Minor
>
> Do we have any use cases? (serialize/deserialize the WalEdit between mapper
> and reducer?) If not, we should make WalEdit not implement the Writable
> interface.
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