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https://issues.apache.org/jira/browse/HBASE-6925?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13488687#comment-13488687
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Karthik Ranganathan commented on HBASE-6925:
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Also, I was able to get the throughput of a single-threaded scan from a client
of a block in the block-cache break 100MB/s (on whatever SKU I am using) -
started around the 20MB/s. Will write a blog post about the various changes in
detail if interested. I think there is scope to do even better. Prefetching is
huge of-course - helps even more in case the block has to be read from disk.
> Change socket write size from 8K to 64K for HBaseServer
> -------------------------------------------------------
>
> Key: HBASE-6925
> URL: https://issues.apache.org/jira/browse/HBASE-6925
> Project: HBase
> Issue Type: Sub-task
> Components: Performance
> Reporter: Karthik Ranganathan
> Assignee: Karthik Ranganathan
> Priority: Critical
> Fix For: 0.94.3, 0.96.0
>
> Attachments: HBASE-6925.patch
>
>
> Creating a JIRA for this, but the change is trivial: change NIO_BUFFER_LIMIT
> from 8K to 64K in HBaseServer. This seems to increase scan throughput.
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