--- title: Cluster Manager Metrics description: A list of the metrics provided by the Cluster Manager. pubDate: 2026-08-17T09:53:44.266Z antora: editUrl: https://github.com/couchbaselabs/docs-columnar/edit/main/modules/metrics-reference/pages/ns-server-metrics.adoc xref: xref:analytics:metrics-reference:ns-server-metrics.adoc[] --- [Consult the llms.txt file for a full list of contents](/llms.txt) [View original HTML](/analytics/metrics-reference/ns-server-metrics.html) # Cluster Manager Metrics > A list of the metrics provided by the Cluster Manager. > [!TIP] > * The type / unit badge shows shows the Prometheus [type](https://prometheus.io/docs/tutorials/understanding%5Fmetric%5Ftypes/) and [unit](https://prometheus.io/docs/practices/naming/#base-units) (if present). | audit\_queue\_lengthgauge Current number of entries in the audit queue | | ----------------------------------------------------------------------------------------------------------------------------------------------------------- | | audit\_unsuccessful\_retriescounter Failed attempts to audit | | cm\_auth\_cache\_current\_itemsgauge Current number of items available in cbauth auth cache | | cm\_auth\_cache\_hit\_totalcounter Total number of cbauth auth cache hits | | cm\_auth\_cache\_max\_itemsgauge Maximum capacity of cbauth auth cache | | cm\_auth\_cache\_miss\_totalcounter Total number of cbauth auth cache misses | | cm\_auto\_failover\_countgauge Number of auto-failovers | | cm\_auto\_failover\_enabledgauge Indicates if auto-failover is enabled (1 = true, 0 = false) | | cm\_auto\_failover\_max\_countgauge Maximum number of auto-failovers before being disabled | | cm\_build\_streaming\_info\_totalcounter Number of streaming requests processed | | cm\_client\_cert\_cache\_current\_itemsgauge Current number of items available in cbauth client\_cert cache | | cm\_client\_cert\_cache\_hit\_totalcounter Total number of cbauth client\_cert cache hits | | cm\_client\_cert\_cache\_max\_itemsgauge Maximum capacity of cbauth client\_cert cache | | cm\_client\_cert\_cache\_miss\_totalcounter Total number of cbauth client\_cert cache misses | | cm\_erlang\_port\_countgauge The number of ports in use by the erlang VM | | cm\_erlang\_port\_limitgauge The maximum number of ports that the erlang VM can use | | cm\_erlang\_process\_countgauge The number of processes in use by the erlang VM | | cm\_erlang\_process\_limitgauge The maximum number of processes that the erlang VM can use | | cm\_failover\_totalcounter Number of non-graceful failover results | | cm\_gc\_duration\_secondshistogram Time to perform erlang garbage collection | | cm\_graceful\_failover\_totalcounter Number of graceful failover results | | cm\_http\_requests\_secondshistogram Number of bucket HTTP requests | | cm\_http\_requests\_totalcounter Total number of HTTP requests categorized | | cm\_is\_balancedgauge Indicates if cluster is balanced (1 = true, 0 = false). Only reported by the orchestrator node and only updated once every 30 seconds | | cm\_logs\_totalcounter Total number of logs logged | | cm\_memcached\_call\_time\_secondshistogram Amount of time to call memcached | | cm\_memcached\_cmd\_totalgauge Total number of memcached commands | | cm\_memcached\_e2e\_call\_time\_secondshistogram End to end memcached call times | | cm\_memcached\_q\_call\_time\_secondshistogram / seconds Memcached queue call times | | cm\_mru\_cache\_add\_time\_secondshistogram / seconds Time to add to MRU cache | | cm\_mru\_cache\_flush\_time\_secondshistogram / seconds Time to flush MRU cache | | cm\_mru\_cache\_lock\_time\_secondshistogram / seconds Time to lock MRU cache | | cm\_mru\_cache\_lookup\_time\_secondshistogram / seconds Time to perform a lookup in the MRU cache | | cm\_mru\_cache\_lookup\_totalcounter Total number of MRU cache lookups | | cm\_mru\_cache\_take\_lock\_totalcounter Total number of times MRU cache lock was obtained | | cm\_odp\_report\_failedcounter Number of failures to send on-demand pricing report | | cm\_outgoing\_http\_requests\_secondshistogram / seconds Time taken for outgoing HTTP requests | | cm\_outgoing\_http\_requests\_totalcounter Total number of outgoing HTTP requests | | cm\_rebalance\_in\_progressgauge Indicates if a rebalance is running (1 = true, 0 = false). Only reported by the orchestrator node. | | cm\_rebalance\_progressgauge / ratio Estimate of the rebalance progress (0 - 1) for each stage. Only reported by the orchestrator node. | | cm\_rebalance\_totalcounter Number of rebalance results | | cm\_request\_hibernates\_totalcounter Number of times requests were hibernated | | cm\_request\_unhibernates\_totalcounter Number of times requests were unhibernated | | cm\_rest\_request\_access\_forbidden\_totalcounter Number of REST requests failing due inadequate permissions | | cm\_rest\_request\_auth\_failure\_totalcounter Number of REST requests failing authentication | | cm\_rest\_request\_enters\_totalcounter Number of REST requests to enter ns\_server | | cm\_rest\_request\_failure\_totalcounter Number of REST requests failing (see specific code) | | cm\_rest\_request\_leaves\_totalcounter Number of REST requests to exit ns\_server | | cm\_status\_latency\_secondshistogram / seconds Latency time for status | | cm\_up\_cache\_current\_itemsgauge Current number of items available in cbauth up cache | | cm\_up\_cache\_hit\_totalcounter Total number of cbauth up cache hits | | cm\_up\_cache\_max\_itemsgauge Maximum capacity of cbauth up cache | | cm\_up\_cache\_miss\_totalcounter Total number of cbauth up cache misses | | cm\_user\_bkts\_cache\_current\_itemsgauge Current number of items available in cbauth bkts cache | | cm\_user\_bkts\_cache\_hit\_totalcounter Total number of cbauth bkts cache hits | | cm\_user\_bkts\_cache\_max\_itemsgauge Maximum capacity of cbauth bkts cache | | cm\_user\_bkts\_cache\_miss\_totalcounter Total number of cbauth bkts cache misses | | cm\_uuid\_cache\_current\_itemsgauge Current number of items available in cbauth uuid cache | | cm\_uuid\_cache\_hit\_totalcounter Total number of cbauth uuid cache hits | | cm\_uuid\_cache\_max\_itemsgauge Maximum capacity of cbauth uuid cache | | cm\_uuid\_cache\_miss\_totalcounter Total number of cbauth uuid cache misses | | cm\_web\_cache\_hits\_totalcounter Total number of web cache hits | | cm\_web\_cache\_inner\_hits\_totalcounter Total number of inner web cache hits | | cm\_web\_cache\_updates\_totalcounter Total number of web cache updates | | couch\_docs\_actual\_disk\_sizegauge / bytes Amount of disk space used by the Data Service | | couch\_views\_actual\_disk\_sizegauge / bytes Amount of disk space used by Views data | | sys\_allocstallcounter Number of alloc stalls | | sys\_cpu\_burst\_rateDeprecatedgauge Rate at which CPUs overran their quota | | sys\_cpu\_cgroup\_seconds\_totalcounter / seconds Number of CPU seconds utilized in the cgroup, by mode | | sys\_cpu\_cgroup\_usage\_seconds\_totalcounter / seconds Number of 'user' and 'system' CPU seconds utilized in the cgroup | | sys\_cpu\_cores\_availablegauge Number of available CPU cores in the control group | | sys\_cpu\_host\_cores\_availablegauge Number of available CPU cores in the host | | sys\_cpu\_host\_idle\_rateDeprecatedgauge Idle CPU utilization rate in the host | | sys\_cpu\_host\_other\_rateDeprecatedgauge Other (not idle/user/sys/irq/stolen) CPU utilization rate in the host | | sys\_cpu\_host\_seconds\_totalcounter / seconds Number of CPU seconds utilized in the host, by mode | | sys\_cpu\_host\_sys\_rateDeprecatedgauge System CPU utilization rate in the host | | sys\_cpu\_host\_user\_rateDeprecatedgauge User space CPU utilization rate in the host | | sys\_cpu\_host\_utilization\_rateDeprecatedgauge CPU utilization rate in the host | | sys\_cpu\_irq\_rateDeprecatedgauge IRQ rate | | sys\_cpu\_stolen\_rateDeprecatedgauge CPU stolen rate | | sys\_cpu\_sys\_rateDeprecatedgauge System CPU utilization rate in the control group | | sys\_cpu\_throttled\_rateDeprecatedgauge Rate at which CPUs were throttled | | sys\_cpu\_user\_rateDeprecatedgauge User space CPU utilization rate in the control group | | sys\_cpu\_utilization\_rateDeprecatedgauge CPU utilization rate in the control group | | sys\_disk\_queuegauge Current disk queue length of the disk | | sys\_disk\_queue\_depthgauge Maximum disk queue length of the disk | | sys\_disk\_read\_bytescounter Number of bytes read by the disk | | sys\_disk\_read\_time\_secondscounter Amount of time that the disk spent reading | | sys\_disk\_readscounter Number of reads that the disk performed | | sys\_disk\_time\_secondscounter Amount of time that the disk spent performing IO | | sys\_disk\_write\_bytescounter Number of bytes written by the disk | | sys\_disk\_write\_time\_secondscounter Amount of time that the disk spent writing | | sys\_disk\_writescounter Number of writes that the disk performed | | sys\_mem\_actual\_freegauge / bytes Amount of system memory available, including buffers/cache | | sys\_mem\_actual\_usedgauge / bytes Amount of system memory used, excluding buffers/cache | | sys\_mem\_cgroup\_actual\_usedgauge / bytes Amount of system memory used, excluding buffers/cache, in the control group | | sys\_mem\_cgroup\_limitgauge / bytes System memory limit, in the control group | | sys\_mem\_cgroup\_usedgauge / bytes Amount of system memory used, including buffers/cache, in the control group | | sys\_mem\_freegauge / bytes Amount of system memory free, excluding buffers/cache | | sys\_mem\_limitDeprecatedgauge / bytes System memory limit | | sys\_mem\_totalgauge / bytes Total amount of system memory | | sys\_mem\_used\_sysgauge / bytes Amount of system memory used, including buffers/cache | | sys\_pressure\_share\_time\_stalledgauge Percentage of time that tasks were stalled on a given resource | | sys\_pressure\_total\_stall\_time\_useccounter / microseconds Absolute stall time when tasks were stalled on a given resource | | sys\_swap\_totalgauge / bytes Total amount of swap space | | sys\_swap\_usedgauge / bytes Amount of swap space used | | sysproc\_cpu\_seconds\_totalcounter Amount of user CPU cycles used, by process | | sysproc\_cpu\_utilizationDeprecatedgauge CPU utilization rate, by process | | sysproc\_major\_faults\_rawcounter Number of major page faults, by process | | sysproc\_mem\_residentgauge / bytes Amount of resident memory used, by process | | sysproc\_mem\_sharegauge / bytes Amount of shared memory used, by process | | sysproc\_mem\_sizegauge / bytes Amount of memory used, by process | | sysproc\_minor\_faults\_rawgauge Number of minor page faults, by process | | sysproc\_page\_faults\_rawgauge Number of page faults, by process | | sysproc\_start\_timecounter OS specific time when process was started |