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https://issues.apache.org/jira/browse/HBASE-730?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12611793#action_12611793
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Jean-Daniel Cryans commented on HBASE-730:
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The initialScan has poor chances of being called with metaRegionsToScan filled.
So the optimization will do nothing for a lot of people (and if you have a big
cluster, starting it will be long enough for other reasons). So this
modification is out of scope in this jira.
Something doable would be to clear the ROOT table.
> On startup, rinse STARTCODE and SERVER from .META.
> --------------------------------------------------
>
> Key: HBASE-730
> URL: https://issues.apache.org/jira/browse/HBASE-730
> Project: Hadoop HBase
> Issue Type: Improvement
> Reporter: stack
> Assignee: Jean-Daniel Cryans
> Fix For: 0.2.0
>
> Attachments: hbase-730-v1.patch
>
>
> Look into what it would take purging startcode and server from .META. on
> startup. It might make startup run faster. In particular, Clint Morgan was
> asking for faster startup. Below is from a reply. The +1 is from JK.
> > > Looking at code, we have the concept of an 'initial' scan. I
> > > wonder if things would run faster for you if on the initial
> > > scan we just cleared all SERVER and STARTCODE entries in
> > > .META. rather than wait on regionserver reports?
> +1
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