• [ENHANCEMENT] Add -cassandra.num-connections to allow increasing the number of TCP connections to each Cassandra server. cortexproject#2666
• [ENHANCEMENT] Use separate Cassandra clients and connections for reads and writes. cortexproject#2666
• [ENHANCEMENT] Add -cassandra.reconnect-interval to allow specifying the reconnect interval to a Cassandra server that has been marked DOWN by the gocql driver. Also change the default value of the reconnect interval from 60s to 1s. cortexproject#2687
• [ENHANCEMENT] Add -cassandra.convict-hosts-on-failure to allow disabling of host failure conviction on connection failures. cortexproject#2684
• [ENHANCEMENT] Use fork of gocql to export Prometheus metrics and GoKit logs. cortexproject#2684
• [BUGFIX] Cassandra: fixed an edge case leading to an invalid CQL query when querying the index on a Cassandra store. cortexproject#2639