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https://issues.apache.org/jira/browse/HBASE-5238?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14330001#comment-14330001
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stack commented on HBASE-5238:
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Thanks for the log. I don't think I need this 'META: ' prefix you have on all
the logging since it all has MetaTableAccessor as class and its all JSON? I
can fix on commit. The release not can be improved in that you should say how
to 'enable' this extra logging (or rather, I suppose, it looks like it is ON
always -- that is so [~octo47]? If so, I see no harm starting there in 1.1.0
and 2.0.0). Thanks.
> Add a log4j category for all edits to META/ROOT
> -----------------------------------------------
>
> Key: HBASE-5238
> URL: https://issues.apache.org/jira/browse/HBASE-5238
> Project: HBase
> Issue Type: New Feature
> Components: regionserver
> Affects Versions: 2.0.0
> Reporter: Todd Lipcon
> Assignee: Andrey Stepachev
> Priority: Minor
> Labels: beginner
> Attachments: HBASE-5238.patch, meta2.log
>
>
> Occasionally we run into bugs that have corrected META and written some bad
> data to META/ROOT but it's difficult to understand the order in which things
> happened. One option is to dump the HLog contents from the servers that
> hosted META at that time, but then it's interspersed with all other data. It
> would be nice to add a Log4j Logger to which we log all edits being applied
> to META and ROOT in textual form at DEBUG level. Then it would be easier to
> do a cluster-wide log grep to see what happened when.
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