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https://issues.apache.org/jira/browse/HBASE-21333?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16654253#comment-16654253
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stack commented on HBASE-21333:
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Checking, we're doing a steady 40 regions a second over hours. Should be easy
enough going up from here.
> [amv2] large cluster startup is slow
> ------------------------------------
>
> Key: HBASE-21333
> URL: https://issues.apache.org/jira/browse/HBASE-21333
> Project: HBase
> Issue Type: Sub-task
> Components: amv2
> Affects Versions: 2.1.0
> Reporter: stack
> Priority: Major
> Attachments: 2.1.1.129578.alloc.svg, 2.1.1.129578.cpu.svg,
> 2.1.1.129578.lock.svg
>
>
> Testing startup of cluster with 500+ nodes and .5M regions takes a few hours.
> This is a 2.1.x cluster with batching disabled.
> Looking at what the Master is doing, its mostly just parsing regionserver
> reports.
> Stats to follow.
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