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Andy Tolbert commented on CASSANDRA-9558: ----------------------------------------- Thanks [~aboudreault]! For reference, [JAVA-738|https://datastax-oss.atlassian.net/browse/JAVA-738] was previously opened to evaluate the pool implementation for protocol version 3+. I've also opened up [JAVA-802|https://datastax-oss.atlassian.net/browse/JAVA-802] to ensure we incorporate testing java-driver RCs with cassandra-stress to ensure there is no performance regression as part of the test/release process. I'll continue doing a performance evaluation of the driver with cassandra-stress to see if anything obvious sticks out on the driver side. > Cassandra-stress regression in 2.2 > ---------------------------------- > > Key: CASSANDRA-9558 > URL: https://issues.apache.org/jira/browse/CASSANDRA-9558 > Project: Cassandra > Issue Type: Bug > Reporter: Alan Boudreault > Priority: Blocker > Attachments: 2.1.log, 2.2.log, CASSANDRA-9558-ProtocolV2.patch, > stress-2.1-java-driver-2.0.9.2.log, stress-2.1-java-driver-2.2+PATCH.log, > stress-2.1-java-driver-2.2.log, stress-2.2-java-driver-2.2+PATCH.log, > stress-2.2-java-driver-2.2.log > > > We are seeing some regression in performance when using cassandra-stress 2.2. > You can see the difference at this url: > http://riptano.github.io/cassandra_performance/graph_v5/graph.html?stats=stress_regression.json&metric=op_rate&operation=1_write&smoothing=1&show_aggregates=true&xmin=0&xmax=108.57&ymin=0&ymax=168147.1 > The cassandra version of the cluster doesn't seem to have any impact. > //cc [~tjake] [~benedict] -- This message was sent by Atlassian JIRA (v6.3.4#6332)