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Add link to Lars's graphs in hbase-7008 where he plays w/ nagles and different data sizes 

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1402399 13f79535-47bb-0310-9956-ffa450edef68
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Michael Stack 2012-10-26 05:40:00 +00:00
parent 4ecc39db33
commit 5df23efc39
1 changed files with 3 additions and 1 deletions
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src/docbkx/configuration.xml
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@ -1126,7 +1126,9 @@ of all regions.
<para>If a big 40ms or so occasional delay is seen in operations against HBase,
try the Nagles' setting. For example, see the user mailing list thread,
<link xlink:href="http://search-hadoop.com/m/pduLg2fydtE/Inconsistent+scan+performance+with+caching+set+&amp;subj=Re+Inconsistent+scan+performance+with+caching+set+to+1">Inconsistent scan performance with caching set to 1</link>
and the issue cited therein where setting notcpdelay improved scan speeds.</para>
and the issue cited therein where setting notcpdelay improved scan speeds. You might also
see the graphs on the tail of <link xlink:href="https://issues.apache.org/jira/browse/HBASE-7008">HBASE-7008 Set scanner caching to a better default</link>
where our Lars Hofhansl tries various data sizes w/ Nagle's on and off measuring the effect.</para>
</section>
</section>