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https://issues.apache.org/jira/browse/HBASE-7008?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13482733#comment-13482733
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Lars Hofhansl commented on HBASE-7008:
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It does look that way. It also seems that disabling Nagle's almost never leads
to worse scan performance.
So we have various options now:
# Disable Nagle's and increase scanner caching to 100 by default
# Only increase the scanner caching default, leave Nagle's on by default
# Leave things as they are and document setting scanner caching in the
important settings.
Based on my limited testing I'd vote for #1.
> Set scanner caching to a better default
> ---------------------------------------
>
> Key: HBASE-7008
> URL: https://issues.apache.org/jira/browse/HBASE-7008
> Project: HBase
> Issue Type: Bug
> Components: Client
> Reporter: liang xie
> Assignee: liang xie
> Fix For: 0.94.3, 0.96.0
>
> Attachments: 7008-0.94.txt, 7008-0.94-v2.txt, 7008-v3.txt,
> 7008-v4.txt, HBASE-7008.patch, HBASE-7008-v2.patch
>
>
> per
> http://search-hadoop.com/m/qaRu9iM2f02/Set+scanner+caching+to+a+better+default%253F&subj=Set+scanner+caching+to+a+better+default+
> let's set to 100 by default
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