Author: jstephens
Date: 2008-02-26 16:29:48 +0100 (Tue, 26 Feb 2008)
New Revision: 10017
Log:
ndb-connection-pool should not be set to a higher number than that of
the total number of cores available on the host machine (Tomas/Jeb)
Modified:
trunk/refman-5.1/mysql-cluster-optvar-core.xml
Modified: trunk/refman-5.1/mysql-cluster-optvar-core.xml
===================================================================
--- trunk/refman-5.1/mysql-cluster-optvar-core.xml 2008-02-26 14:31:37 UTC (rev 10016)
+++ trunk/refman-5.1/mysql-cluster-optvar-core.xml 2008-02-26 15:29:48 UTC (rev 10017)
Changed blocks: 1, Lines Added: 11, Lines Deleted: 0; 927 bytes
@@ -114,6 +114,17 @@
to the cluster, and are allocated to threads in a round-robin
fashion.
</para>
+
+ <important>
+ <para>
+ This option is useful only when running
+ <command>mysqld</command> on host machines having multiple
+ CPUs, multiple cores, or both. For best results, the value
+ should be smaller than the total number of cores available
+ on the host machine. Setting it to a value greter than this
+ is likely to degrade performance severely.
+ </para>
+ </important>
</listitem>
<listitem>
| Thread |
|---|
| • svn commit - mysqldoc@docsrva: r10017 - trunk/refman-5.1 | jon | 26 Feb |
