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https://issues.apache.org/jira/browse/HBASE-3229?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12931170#action_12931170
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Jonathan Gray commented on HBASE-3229:
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I think this is a bug, not a feature, so tied it on 0.90. But could be
convinced on a punt if others don't think this is a big deal.
I'm filing this after a user tripped on it and didn't know exactly what
happened.
> Table creation, though using "async" call to master, can actually run for a
> while and cause RPC timeout
> -------------------------------------------------------------------------------------------------------
>
> Key: HBASE-3229
> URL: https://issues.apache.org/jira/browse/HBASE-3229
> Project: HBase
> Issue Type: Bug
> Components: client, master
> Affects Versions: 0.90.0
> Reporter: Jonathan Gray
> Priority: Critical
> Fix For: 0.90.0
>
>
> Our create table methods in HBaseAdmin are synchronous from client POV.
> However, underneath, we're using an "async" create and then looping waiting
> for table availability. Because the create is async and we loop instead of
> block on RPC, we don't expect RPC timeouts.
> However, when creating a table with lots of initial regions, the "async"
> create can actually take a long time (more than 30 seconds in this case)
> which causes the client to timeout and gives impression something failed.
> We should make the create truly async so that this can't happen. And rather
> than doing one-off, inline assignment as it is today, we should reuse the
> fancy enable/disable code stack just added to make this faster and more
> optimal.
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