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vijay commented on CASSANDRA-10055: ----------------------------------- HI, Benedict controlling the number of coreConnPerHostLocal and maxConnPerHostLocal helped in cpu load issue we are facing. > High CPU load for Cassandra 2.1.8 > --------------------------------- > > Key: CASSANDRA-10055 > URL: https://issues.apache.org/jira/browse/CASSANDRA-10055 > Project: Cassandra > Issue Type: Bug > Components: Config > Environment: Prod > Reporter: vijay > Labels: triaged > Fix For: 2.1.x > > Attachments: dstst-lcdn.log, dstst-lcdn2.log, dstst-lcdn3.log, > dstst-lcdn4.log, dstst-lcdn5.log, dstst-lcdn6.log, js.log, js2.log, js3.log, > js4.log, js5.log, js6.log, top-bHn1-2.log, top-bHn1-3.log, top-bHn1-4.log, > top-bHn1-5.log, top-bHn1-6.log, top-bHn1.log > > > We are seeing High CPU Load about 80% to 100% in Cassandra 2.1.8 when doing > Data ingest, we did not had this issue in 2.0.x version of Cassandra > we tested this in different Cloud platforms and results are same. > CPU: Tested with M3 2xlarge AWS instances > Ingest rate: Injecting 1 million Inserts each insert is of 1000bytes > no other Operations are happening except inserts in Cassandra > let me know if more info is needed. -- This message was sent by Atlassian JIRA (v6.3.4#6332)