86 Monitoring a Cassandra Cluster 86 Monitoring Using DataStax OpsCenter 86 Monitoring Using nodetool 87 Monitoring Using JConsole 88 Compaction Metrics 89 Thread Pool Statistics 90 Read/Write Latency Parameters 116 Examples 117 SHOW 117 Synopsis 117 Description 117 Parameters 117 Examples 117 nodetool 118 cassandra 120 Usage 120 Environment 120 Options 120 Examples 121 stress 121 Setting up fast 125 Nodes seem to freeze after some period of time 126 Nodes are dying with OOM errors 126 Nodetool or JMX Connections Failing on Remote Nodes 126 View of ring differs between some nodes 126 Java