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https://issues.apache.org/jira/browse/HBASE-11288?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17155801#comment-17155801
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Duo Zhang commented on HBASE-11288:
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Generally speaking, caching is for solving hot root region, as a side effect,
it could reduce the problem of master on critical path.
And please stop saying things which do not exist yet. For addressing hot spot
region, there are mainly two ways in HBase, one is split the hot region, the
other is read replicas. The former one is not suitable for root region as it is
not splittable, the latter one is not stable enough so we do not consider it.
If you think you can fix them as a whole, please give a clear solution. Hot
spot is a problem when HBase was born more than 10 years ago, and we still do
not have a perfect solution to solve it, and even this issue is partly for
solving the hot spot on meta region. You can not simply throw out a statement
that ‘we should address them as a whole’ but do not give a solution,
irresponsible.
Thanks.
> Splittable Meta
> ---------------
>
> Key: HBASE-11288
> URL: https://issues.apache.org/jira/browse/HBASE-11288
> Project: HBase
> Issue Type: Umbrella
> Components: meta
> Reporter: Francis Christopher Liu
> Assignee: Francis Christopher Liu
> Priority: Major
>
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