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https://issues.apache.org/jira/browse/HBASE-6218?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mike Drob updated HBASE-6218:
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Status: In Progress (was: Patch Available)
No patch attached, kicking out of patch available.
> Add dynamic on/off tracing facility to regionserver; lightweight(?) record of
> read/write load
> ---------------------------------------------------------------------------------------------
>
> Key: HBASE-6218
> URL: https://issues.apache.org/jira/browse/HBASE-6218
> Project: HBase
> Issue Type: New Feature
> Components: test
> Reporter: stack
> Assignee: stack
>
> It'd be sweet if we could kick a regionserver and have it start recording the
> read/write load. Then after we'd taken a sample, we could turn off the
> recording.
> Chatting at the meetup today, replaying the WALs would give you the write
> side (though missing would be the rate at which the client should play the
> edits -- perhaps we could add this to the WALEdit if its not already there?).
> Read side we'd need something new recording the read load (Perhaps we'd have
> a single trace for read and write but somehow you could get the write from
> the WAL logs). It would be nice too if we could verify that we read the
> right thing somehow (hash of the return when the trace switch is thrown?
> Would need to cater to differences in timestamp possibly?)
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