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https://issues.apache.org/jira/browse/HBASE-3186?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12997267#comment-12997267
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Andrew Purtell commented on HBASE-3186:
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bq. also HDFS-347 is really promising as well and avoids this.
Concur. I've seen early indications of major throughput and latency
improvements with the 0.20-append version of this patch ported to CDH3B3 with
no indications of instability.
> Patch that disables pread
> -------------------------
>
> Key: HBASE-3186
> URL: https://issues.apache.org/jira/browse/HBASE-3186
> Project: HBase
> Issue Type: Task
> Reporter: stack
> Attachments: 3006-3185-patch-to-0.20.6.txt, disable_read.txt
>
>
> Make a patch to disable pread to see if pread is responsible for growing
> number of established connections seen on the mozilla cluster
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