Etienne Adam created CASSANDRA-12570: ----------------------------------------
Summary: high reads on system_auth Key: CASSANDRA-12570 URL: https://issues.apache.org/jira/browse/CASSANDRA-12570 Project: Cassandra Issue Type: Bug Environment: Cluster of 5 nodes, 2.1.15 Reporter: Etienne Adam Since we activated authentication on our production cluster today, we're seeing high reads on keyspace "system_auth", which is causing a non negligeable increase in system load. - Reads on system_auth are between 7K to 15K/minutes depending on the node. - RF for system_auth was set to 5, we changed it to 3 without any visible effect. - System loads went from ~1 to ~8 - Nothing special on the logs ( We did not find any configuration to fix this, and it seems that authentication alone should not cause that kind of a load.. ? Is there more information we can provide to help debug this before we turn off authentication ? -- This message was sent by Atlassian JIRA (v6.3.4#6332)