Server Metrics

Reference information for 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.

alerts_rate

Description
The number of alerts.
Unit
events per second
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

average_request_latency

Description
Average Request Latency
Unit
ms
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

cgroup_cpu_system_rate

Description
CPU usage of the role's cgroup
Unit
seconds per second
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

cgroup_cpu_user_rate

Description
User Space CPU usage of the role's cgroup
Unit
seconds per second
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

cgroup_mem_page_cache

Description
Page cache usage of the role's cgroup
Unit
bytes
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

cgroup_mem_rss

Description
Resident memory of the role's cgroup
Unit
bytes
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

cgroup_mem_swap

Description
Swap usage of the role's cgroup
Unit
bytes
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

cgroup_read_bytes_rate

Description
Bytes read from all disks by the role's cgroup
Unit
bytes per second
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

cgroup_read_ios_rate

Description
Number of read I/O operations from all disks by the role's cgroup
Unit
ios per second
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

cgroup_write_bytes_rate

Description
Bytes written to all disks by the role's cgroup
Unit
bytes per second
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

cgroup_write_ios_rate

Description
Number of write I/O operations to all disks by the role's cgroup
Unit
ios per second
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

cpu_system_rate

Description
Total System CPU
Unit
seconds per second
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

cpu_user_rate

Description
Total CPU user time
Unit
seconds per second
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

data_nodes

Description
Data Nodes
Unit
znodes
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

data_size

Description
Data Size
Unit
bytes
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

data_watches

Description
Data Watches
Unit
watches
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

events_critical_rate

Description
The number of critical events.
Unit
events per second
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

events_important_rate

Description
The number of important events.
Unit
events per second
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

events_informational_rate

Description
The number of informational events.
Unit
events per second
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

fd_max

Description
Maximum number of file descriptors
Unit
file descriptors
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

fd_open

Description
Open file descriptors.
Unit
file descriptors
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

fsync_threshold_exceed_rate

Description
Fsync Threshold Exceed Count
Unit
counts per second
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

health_bad_rate

Description
Percentage of Time with Bad Health
Unit
seconds per second
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

health_concerning_rate

Description
Percentage of Time with Concerning Health
Unit
seconds per second
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

health_disabled_rate

Description
Percentage of Time with Disabled Health
Unit
seconds per second
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

health_good_rate

Description
Percentage of Time with Good Health
Unit
seconds per second
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

health_unknown_rate

Description
Percentage of Time with Unknown Health
Unit
seconds per second
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

jvm_blocked_threads

Description
Blocked threads
Unit
threads
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

jvm_gc_rate

Description
Number of garbage collections
Unit
garbage collections per second
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

jvm_gc_time_ms_rate

Description
Total time spent garbage collecting.
Unit
ms per second
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

jvm_heap_committed_mb

Description
Total amount of committed heap memory.
Unit
MB
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

jvm_heap_used_mb

Description
Total amount of used heap memory.
Unit
MB
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

jvm_max_memory_mb

Description
Maximum allowed memory.
Unit
MB
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

jvm_new_threads

Description
New threads
Unit
threads
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

jvm_runnable_threads

Description
Runnable threads
Unit
threads
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

jvm_terminated_threads

Description
Terminated threads
Unit
threads
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

jvm_timed_waiting_threads

Description
Timed waiting threads
Unit
threads
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

jvm_total_threads

Description
Total threads
Unit
threads
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

jvm_waiting_threads

Description
Waiting threads
Unit
threads
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

last_client_response_size

Description
Client Response Size
Unit
bytes
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

last_queued_epoch

Description
ZooKeeper server last queued epoch
Unit
epoch
Parents
CDH Version
CDH 5, CDH 6, CDH 7

last_queued_xid

Description
ZooKeeper server last queued xid
Unit
xid
Parents
CDH Version
CDH 5, CDH 6, CDH 7

max_client_response_size

Description
Maximum Client Response Size
Unit
bytes
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

max_request_latency

Description
Maximum Request Latency
Unit
ms
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

mem_rss

Description
Resident memory used
Unit
bytes
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

mem_swap

Description
Amount of swap memory used by this role's process.
Unit
bytes
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

mem_virtual

Description
Virtual memory used
Unit
bytes
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

min_client_response_size

Description
Minimum Client Response Size
Unit
bytes
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

min_request_latency

Description
Minimum Request Latency
Unit
ms
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

oom_exits_rate

Description
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.
Unit
exits per second
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

open_connections

Description
Open Connections
Unit
connections
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

outstanding_requests

Description
Outstanding Requests
Unit
requests
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

packets_receive_rate

Description
The number of packets received
Unit
packets per second
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

packets_transmit_rate

Description
The number of packets transmitted
Unit
packets per second
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

read_bytes_rate

Description
The number of bytes read from the device
Unit
bytes per second
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

unexpected_exits_rate

Description
The number of times the role's backing process exited unexpectedly.
Unit
exits per second
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

uptime

Description
For a host, the amount of time since the host was booted. For a role, the uptime of the backing process.
Unit
seconds
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7

write_bytes_rate

Description
The number of bytes written to the device
Unit
bytes per second
Parents
cluster, rack, zookeeper
CDH Version
CDH 5, CDH 6, CDH 7