hbase performance tuning

First, with almost all databases check this setting:

sysctl -a |grep swap

Default is set to 60. This is really bad for databases. Lets set swappiness to 0

sysctl -w vm.swappiness=0   

echo “vm/swappiness=0″ >> /etc/sysctl.conf

sysctl -a |grep swap

 

Posted in HBase

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