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https://issues.apache.org/jira/browse/HBASE-15481?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15202118#comment-15202118
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Matteo Bertozzi commented on HBASE-15481:
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we still have a rollWriter() in the WAL class. so I expect a Roll coprocessor
to be called.
what do you think is best?
if we add a boolean we end up adding 3 methods per type (e.g. Path)
if we pass the WAL instance you can probably do tricks with if instanceof
FSHLog but I don't think you can lookup the old and new path. any other option?
> Add pre/post roll to WALObserver
> --------------------------------
>
> Key: HBASE-15481
> URL: https://issues.apache.org/jira/browse/HBASE-15481
> Project: HBase
> Issue Type: New Feature
> Affects Versions: 1.3.0
> Reporter: Matteo Bertozzi
> Assignee: Matteo Bertozzi
> Priority: Trivial
> Fix For: 2.0.0, 1.3.0
>
> Attachments: HBASE-15481-v0.patch, HBASE-15481-v1.patch,
> HBASE-15481-v1.patch
>
>
> currently the WALObserver has only a pre/post Write. It will be useful to
> have a pre/post Roll too.
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