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https://issues.apache.org/jira/browse/HBASE-25528?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bharath Vissapragada updated HBASE-25528:
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Description:
Over the weekend we ran into an issue of running normalizer on a table with
~400k regions and we noticed the master was bottlenecked on merge dispatcher
code that runs on a single threaded thread-pool that was meant for all master
table operations (opcode: MASTER_TABLE_OPERATIONS). Having a dedicated
thread-pool helped us dispatch merges at a faster rate.
was:
Over the weekend we ran into an issue of running normalizer on a table with
~400k regions and we noticed the master was bottlenecked on a single threaded
thread-pool that was meant for all master table operations (opcode:
MASTER_TABLE_OPERATIONS). Having a dedicated thread-pool helped us dispatch
merges at a faster rate.
> Dedicated merge dispatch threadpool on master
> ---------------------------------------------
>
> Key: HBASE-25528
> URL: https://issues.apache.org/jira/browse/HBASE-25528
> Project: HBase
> Issue Type: Improvement
> Components: master
> Affects Versions: 3.0.0-alpha-1, 1.7.0, 2.5.0
> Reporter: Bharath Vissapragada
> Assignee: Bharath Vissapragada
> Priority: Minor
>
> Over the weekend we ran into an issue of running normalizer on a table with
> ~400k regions and we noticed the master was bottlenecked on merge dispatcher
> code that runs on a single threaded thread-pool that was meant for all master
> table operations (opcode: MASTER_TABLE_OPERATIONS). Having a dedicated
> thread-pool helped us dispatch merges at a faster rate.
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