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https://issues.apache.org/jira/browse/HBASE-3438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12980901#action_12980901
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Todd Lipcon commented on HBASE-3438:
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Another thing to consider is our backoff policy on client retries. If the
client hits a NSRE due to split, it might be backing off too quickly to
multi-second sleep times?
> Cluster Wide Pauses
> -------------------
>
> Key: HBASE-3438
> URL: https://issues.apache.org/jira/browse/HBASE-3438
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.89.20100924
> Environment: CentOS 5.5, 10 Nodes, 24GB RAM, 4 1TB Disks, 8GB Heap
> Reporter: Wayne
>
> Under heavy write load the entire cluster seems to pause with all nodes
> pausing writes/reads for several seconds at a time. This seems to be worse
> with larger region sizes. One possible explanation is that a single node gets
> caught/paused/stuck during a split and that all other nodes are waiting on
> that one node so it looks like a cluster wide pause.
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