Cassandra performance slow down with counter column
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                tubcvt
            
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        Published on 2012-10-15T03:33:06Z
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I have a cluster (4 node ) and a node have 16 core and 24 gb ram:
192.168.23.114  datacenter1 rack1       Up     Normal  44.48 GB        25.00%             
192.168.23.115  datacenter1 rack1       Up     Normal  44.51 GB        25.00%
192.168.23.116  datacenter1 rack1       Up     Normal  44.51 GB        25.00%
192.168.23.117  datacenter1 rack1       Up     Normal  44.51 GB        25.00%
We use about 10 column family (counter column) to make some system statistic report.
Problem on here is that When i set replication_factor of this keyspace from 1 to 2 (contain 10 counter column family ), all cpu of node increase from 10% ( when use replication factor=1) to ---> 90%. :( :(
who can help me work around that :( . why counter column consume too much cpu time :(.
thanks all
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