Server Metrics

In addition to these base metrics, many aggregate metrics are available. If an entity type has parents defined, you can formulate all possible aggregate metrics using the formula base_metric_across_parents.

In addition, metrics for aggregate totals can be formed by adding the prefix total_ to the front of the metric name.

Use the type-ahead feature in the Cloudera Manager chart browser to find the exact aggregate metric name, in case the plural form does not end in "s".

For example, the following metric names may be valid for Server:

  • alerts_rate_across_clusters
  • total_alerts_rate_across_clusters

Some metrics, such as alerts_rate, apply to nearly every metric context. Others only apply to a certain service or role.

For more information about metrics, see Cloudera Manager Metrics and Metric Aggregation.

Metric Name Description Unit Parents CDH Version
alerts_rate The number of alerts. events per second cluster, rack, zookeeper CDH 5, CDH 6
average_request_latency Average Request Latency ms cluster, rack, zookeeper CDH 5, CDH 6
cgroup_cpu_system_rate CPU usage of the role's cgroup seconds per second cluster, rack, zookeeper CDH 5, CDH 6
cgroup_cpu_user_rate User Space CPU usage of the role's cgroup seconds per second cluster, rack, zookeeper CDH 5, CDH 6
cgroup_mem_page_cache Page cache usage of the role's cgroup bytes cluster, rack, zookeeper CDH 5, CDH 6
cgroup_mem_rss Resident memory of the role's cgroup bytes cluster, rack, zookeeper CDH 5, CDH 6
cgroup_mem_swap Swap usage of the role's cgroup bytes cluster, rack, zookeeper CDH 5, CDH 6
cgroup_read_bytes_rate Bytes read from all disks by the role's cgroup bytes per second cluster, rack, zookeeper CDH 5, CDH 6
cgroup_read_ios_rate Number of read I/O operations from all disks by the role's cgroup ios per second cluster, rack, zookeeper CDH 5, CDH 6
cgroup_write_bytes_rate Bytes written to all disks by the role's cgroup bytes per second cluster, rack, zookeeper CDH 5, CDH 6
cgroup_write_ios_rate Number of write I/O operations to all disks by the role's cgroup ios per second cluster, rack, zookeeper CDH 5, CDH 6
cpu_system_rate Total System CPU seconds per second cluster, rack, zookeeper CDH 5, CDH 6
cpu_user_rate Total CPU user time seconds per second cluster, rack, zookeeper CDH 5, CDH 6
data_nodes Data Nodes znodes cluster, rack, zookeeper CDH 5, CDH 6
data_size Data Size bytes cluster, rack, zookeeper CDH 5, CDH 6
data_watches Data Watches watches cluster, rack, zookeeper CDH 5, CDH 6
events_critical_rate The number of critical events. events per second cluster, rack, zookeeper CDH 5, CDH 6
events_important_rate The number of important events. events per second cluster, rack, zookeeper CDH 5, CDH 6
events_informational_rate The number of informational events. events per second cluster, rack, zookeeper CDH 5, CDH 6
fd_max Maximum number of file descriptors file descriptors cluster, rack, zookeeper CDH 5, CDH 6
fd_open Open file descriptors. file descriptors cluster, rack, zookeeper CDH 5, CDH 6
fsync_threshold_exceed_rate Fsync Threshold Exceed Count counts per second cluster, rack, zookeeper CDH 5, CDH 6
health_bad_rate Percentage of Time with Bad Health seconds per second cluster, rack, zookeeper CDH 5, CDH 6
health_concerning_rate Percentage of Time with Concerning Health seconds per second cluster, rack, zookeeper CDH 5, CDH 6
health_disabled_rate Percentage of Time with Disabled Health seconds per second cluster, rack, zookeeper CDH 5, CDH 6
health_good_rate Percentage of Time with Good Health seconds per second cluster, rack, zookeeper CDH 5, CDH 6
health_unknown_rate Percentage of Time with Unknown Health seconds per second cluster, rack, zookeeper CDH 5, CDH 6
jvm_blocked_threads Blocked threads threads cluster, rack, zookeeper CDH 5, CDH 6
jvm_gc_rate Number of garbage collections garbage collections per second cluster, rack, zookeeper CDH 5, CDH 6
jvm_gc_time_ms_rate Total time spent garbage collecting. ms per second cluster, rack, zookeeper CDH 5, CDH 6
jvm_heap_committed_mb Total amount of committed heap memory. MB cluster, rack, zookeeper CDH 5, CDH 6
jvm_heap_used_mb Total amount of used heap memory. MB cluster, rack, zookeeper CDH 5, CDH 6
jvm_max_memory_mb Maximum allowed memory. MB cluster, rack, zookeeper CDH 5, CDH 6
jvm_new_threads New threads threads cluster, rack, zookeeper CDH 5, CDH 6
jvm_runnable_threads Runnable threads threads cluster, rack, zookeeper CDH 5, CDH 6
jvm_terminated_threads Terminated threads threads cluster, rack, zookeeper CDH 5, CDH 6
jvm_timed_waiting_threads Timed waiting threads threads cluster, rack, zookeeper CDH 5, CDH 6
jvm_total_threads Total threads threads cluster, rack, zookeeper CDH 5, CDH 6
jvm_waiting_threads Waiting threads threads cluster, rack, zookeeper CDH 5, CDH 6
last_client_response_size Client Response Size bytes cluster, rack, zookeeper CDH 5, CDH 6
last_queued_epoch ZooKeeper server last queued epoch epoch   CDH 5, CDH 6
last_queued_xid ZooKeeper server last queued xid xid   CDH 5, CDH 6
max_client_response_size Maximum Client Response Size bytes cluster, rack, zookeeper CDH 5, CDH 6
max_request_latency Maximum Request Latency ms cluster, rack, zookeeper CDH 5, CDH 6
mem_rss Resident memory used bytes cluster, rack, zookeeper CDH 5, CDH 6
mem_swap Amount of swap memory used by this role's process. bytes cluster, rack, zookeeper CDH 5, CDH 6
mem_virtual Virtual memory used bytes cluster, rack, zookeeper CDH 5, CDH 6
min_client_response_size Minimum Client Response Size bytes cluster, rack, zookeeper CDH 5, CDH 6
min_request_latency Minimum Request Latency ms cluster, rack, zookeeper CDH 5, CDH 6
oom_exits_rate The number of times the role's backing process was killed due to an OutOfMemory error. This counter is only incremented if the Cloudera Manager "Kill When Out of Memory" option is enabled. exits per second cluster, rack, zookeeper CDH 5, CDH 6
open_connections Open Connections connections cluster, rack, zookeeper CDH 5, CDH 6
outstanding_requests Outstanding Requests requests cluster, rack, zookeeper CDH 5, CDH 6
packets_receive_rate The number of packets received packets per second cluster, rack, zookeeper CDH 5, CDH 6
packets_transmit_rate The number of packets transmitted packets per second cluster, rack, zookeeper CDH 5, CDH 6
read_bytes_rate The number of bytes read from the device bytes per second cluster, rack, zookeeper CDH 5, CDH 6
unexpected_exits_rate The number of times the role's backing process exited unexpectedly. exits per second cluster, rack, zookeeper CDH 5, CDH 6
uptime For a host, the amount of time since the host was booted. For a role, the uptime of the backing process. seconds cluster, rack, zookeeper CDH 5, CDH 6
write_bytes_rate The number of bytes written to the device bytes per second cluster, rack, zookeeper CDH 5, CDH 6