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Cluster Manager Metrics

    March 9, 2025
    + 12
    A list of the metrics provided by the Cluster Manager.

    The following Cluster Manager metrics can be queried by means of the REST APIs described in Statistics.

    Tip

    • The x.y.z badge shows the Couchbase Server version the metric was added in.

    • The type / unit badge shows shows the Prometheus type and unit (if present).

    audit_queue_length     7.0.0 gauge

    Current number of entries in the audit queue

    audit_unsuccessful_retries     7.0.0 counter

    Failed attempts to audit

    cm_build_streaming_info_total     7.0.0 counter

    Number of streaming requests processed

    cm_http_requests_seconds     7.0.0 histogram

    Number of bucket HTTP requests

    cm_http_requests_total     7.0.0 counter

    Total number of HTTP requests categorized

    cm_logs_total     7.1.0 counter

    Total number of logs logged

    cm_memcached_call_time_seconds     7.0.0 histogram

    Amount of time to call memcached

    cm_memcached_e2e_call_time_seconds     7.0.0 histogram

    End to end memcached call times

    cm_memcached_q_call_time_seconds     7.0.0 histogram / seconds

    Memcached queue call times

    cm_mru_cache_add_time_seconds     7.0.0 histogram / seconds

    Time to add to MRU cache

    cm_mru_cache_flush_time_seconds     7.0.0 histogram / seconds

    Time to flush MRU cache

    cm_mru_cache_lock_time_seconds     7.0.0 histogram / seconds

    Time to lock MRU cache

    cm_mru_cache_lookup_time_seconds     7.0.0 histogram / seconds

    Time to perform a lookup in the MRU cache

    cm_mru_cache_lookup_total     7.0.0 counter

    Total number of MRU cache lookups

    cm_mru_cache_take_lock_total     7.0.0 counter

    Total number of times MRU cache lock was obtained

    cm_odp_report_failed     7.0.0 counter

    Number of failures to send on-demand pricing report

    cm_outgoing_http_requests_seconds     7.0.0 histogram / seconds

    Time taken for outgoing HTTP requests

    cm_outgoing_http_requests_total     7.0.0 counter

    Total number of outgoing HTTP requests

    cm_request_hibernates_total     7.0.0 counter

    Number of times requests were hibernated

    cm_request_unhibernates_total     7.0.0 counter

    Number of times requests were unhibernated

    cm_rest_request_enters_total     7.0.0 counter

    Number of REST requests to enter ns_server

    cm_rest_request_leaves_total     7.0.0 counter

    Number of REST requests to exit ns_server

    cm_status_latency_seconds     7.0.0 histogram / seconds

    Latency time for status

    cm_web_cache_hits_total     7.0.0 counter

    Total number of web cache hits

    cm_web_cache_inner_hits_total     7.0.0 counter

    Total number of inner web cache hits

    cm_web_cache_updates_total     7.0.0 counter

    Total number of web cache updates

    couch_docs_actual_disk_size     7.0.0 gauge / bytes

    Amount of disk space used by the Data Service

    couch_views_actual_disk_size     7.0.0 gauge / bytes

    Amount of disk space used by Views data

    sys_allocstall     7.0.0 counter

    Number of alloc stalls

    sys_cpu_burst_rate     7.2.0 gauge

    Rate at which CPUs overran their quota

    sys_cpu_cgroup_seconds_total     7.2.4 counter / seconds

    Number of CPU seconds utilized in the cgroup, by mode

    sys_cpu_cores_available     7.0.0 gauge

    Number of available CPU cores in the control group

    sys_cpu_host_cores_available     7.1.1 gauge

    Number of available CPU cores in the host

    sys_cpu_host_idle_rate     7.2.4 gauge

    Idle CPU utilization rate in the host

    sys_cpu_host_other_rate     7.2.4 gauge

    Other (not idle/user/sys/irq/stolen) CPU utilization rate in the host

    sys_cpu_host_seconds_total     7.2.1 counter / seconds

    Number of CPU seconds utilized in the host, by mode

    sys_cpu_host_sys_rate     7.1.1 gauge

    System CPU utilization rate in the host

    sys_cpu_host_user_rate     7.1.1 gauge

    User space CPU utilization rate in the host

    sys_cpu_host_utilization_rate     7.1.1 gauge

    CPU utilization rate in the host

    sys_cpu_irq_rate     7.0.0 gauge

    IRQ rate

    sys_cpu_stolen_rate     7.0.0 gauge

    CPU stolen rate

    sys_cpu_sys_rate     7.0.0 gauge

    System CPU utilization rate in the control group

    sys_cpu_throttled_rate     7.2.0 gauge

    Rate at which CPUs were throttled

    sys_cpu_user_rate     7.0.0 gauge

    User space CPU utilization rate in the control group

    sys_cpu_utilization_rate     7.0.0 gauge

    CPU utilization rate in the control group

    sys_disk_queue     7.2.4 gauge

    Current disk queue length of the disk

    sys_disk_queue_depth     7.2.4 gauge

    Maximum disk queue length of the disk

    sys_disk_read_bytes     7.2.4 counter

    Number of bytes read by the disk

    sys_disk_read_time_seconds     7.2.4 counter

    Amount of time that the disk spent reading

    sys_disk_reads     7.2.4 counter

    Number of reads that the disk performed

    sys_disk_time_seconds     7.2.4 counter

    Amount of time that the disk spent performing IO

    sys_disk_write_bytes     7.2.4 counter

    Number of bytes written by the disk

    sys_disk_write_time_seconds     7.2.4 counter

    Amount of time that the disk spent writing

    sys_disk_writes     7.2.4 counter

    Number of writes that the disk performed

    sys_mem_actual_free     7.0.0 gauge / bytes

    Amount of system memory available, including buffers/cache

    sys_mem_actual_used     7.0.0 gauge / bytes

    Amount of system memory used, excluding buffers/cache

    sys_mem_cgroup_actual_used     7.2.0 gauge / bytes

    Amount of system memory used, excluding buffers/cache, in the control group

    sys_mem_cgroup_limit     7.2.0 gauge / bytes

    System memory limit, in the control group

    sys_mem_cgroup_used     7.2.0 gauge / bytes

    Amount of system memory used, including buffers/cache, in the control group

    sys_mem_free     7.0.0 gauge / bytes

    Amount of system memory free, excluding buffers/cache

    sys_mem_limit     7.0.0 gauge / bytes

    System memory limit

    sys_mem_total     7.0.0 gauge / bytes

    Total amount of system memory

    sys_mem_used_sys     7.0.0 gauge / bytes

    Amount of system memory used, including buffers/cache

    sys_pressure_share_time_stalled     7.2.4 gauge

    Percentage of time that tasks were stalled on a given resource

    sys_pressure_total_stall_time_usec     7.2.4 counter / microseconds

    Absolute stall time when tasks were stalled on a given resource

    sys_swap_total     7.0.0 gauge / bytes

    Total amount of swap space

    sys_swap_used     7.0.0 gauge / bytes

    Amount of swap space used

    sysproc_cpu_seconds_total     7.2.4 counter

    Amount of user CPU cycles used, by process

    sysproc_cpu_utilization     7.0.0 gauge

    CPU utilization rate, by process

    sysproc_major_faults_raw     7.0.0 counter

    Number of major page faults, by process

    sysproc_mem_resident     7.0.0 gauge / bytes

    Amount of resident memory used, by process

    sysproc_mem_share     7.0.0 gauge / bytes

    Amount of shared memory used, by process

    sysproc_mem_size     7.0.0 gauge / bytes

    Amount of memory used, by process

    sysproc_minor_faults_raw     7.0.0 gauge

    Number of minor page faults, by process

    sysproc_page_faults_raw     7.0.0 gauge

    Number of page faults, by process

    sysproc_start_time     7.2.4 counter

    OS specific time when process was started