[
https://issues.apache.org/jira/browse/HBASE-20786?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16604764#comment-16604764
]
stack commented on HBASE-20786:
-------------------------------
On startup of a cluster with hundreds of nodes and 300+k regions, we were stuck
in the above refreshAndWait method for 20minutes at least. Can the refresh be
done in background rather than in-line? Can it be made faster? (FYI [~mdrob])
> Table create with thousands of regions takes too long
> -----------------------------------------------------
>
> Key: HBASE-20786
> URL: https://issues.apache.org/jira/browse/HBASE-20786
> Project: HBase
> Issue Type: Sub-task
> Components: Performance
> Reporter: stack
> Priority: Major
>
> Internal testing has create of a table with 33k regions taking 18 minutes.
> Let me provide more info below. We have an executor with default ten threads
> handling the creation of the regions in HDFS which helps distribute out the
> load but its not enough. This cluster had >600 servers. Let me add detail.
> Need to spend some time on speeding up create/assigns. Made this an umbrella
> issue so can pick off pieces of the problem as subtasks.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
