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https://issues.apache.org/jira/browse/HBASE-1755?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13009290#comment-13009290
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Jonathan Gray commented on HBASE-1755:
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I generally agree that we should store temporary data in ZK, but I see META as
largely temporary.
Table/region meta data is already persisted on HDFS (we don't properly update,
but that can be fixed without much trouble). And we have plans to move schema
and configuration information into ZK for online changes, so at least on a
running cluster, we'll be depending on ZK for region configuration.
Otherwise, META is largely for locations.
I also think the possibility exists to keep a META region but maintain region
locations in ZK.
In general, the special casing and exception handling around the reading and
updating of META is extraordinarily painful both in the master and in the
regionservers.
> Putting 'Meta' table into ZooKeeper
> -----------------------------------
>
> Key: HBASE-1755
> URL: https://issues.apache.org/jira/browse/HBASE-1755
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 0.90.0
> Reporter: Erik Holstad
> Fix For: 0.92.0
>
>
> Moving to 0.22.0
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