--- title: Kapacitor measurements and fields description: Understand internal Kapacitor measurements and fields and use them to monitor Kapacitor servers. url: https://docs.influxdata.com/platform/monitoring/influxdata-platform/tools/kapacitor-measurements/ estimated_tokens: 2717 --- # Kapacitor measurements and fields Kapacitor exposes internal performance through the `/kacapitor/v1/debug/vars` endpoint. Use the Telegraf `kapacitor` plugins to capture these metrics and store them in InfluxDB. Enable the Kapacitor input plugin in your Telegraf configuration file: ```toml # ... [[inputs.kapacitor]] ## Multiple URLs from which to read Kapacitor-formatted JSON ## Default is "http://localhost:9092/kapacitor/v1/debug/vars". urls = [ "http://localhost:9092/kapacitor/v1/debug/vars" ] # ... ``` ### Visualize Kapacitor metrics Use the [Kapacitor Monitor dashboard](/platform/monitoring/influxdata-platform/monitoring-dashboards/#monitor-kapacitor) to visualize Kapacitor metrics. ## Kapacitor measurements & fields Kapacitor exposes the following measurements and fields through the `/kacapitor/v1/debug/vars` endpoint. - [kapacitor](#kapacitor) - [num\_enabled\_tasks](#num-enabled-tasks) - [num\_subscriptions](#num-subscriptions) - [num\_tasks](#num-tasks) - [kapacitor\_edges](#kapacitor-edges) - [collected](#collected) - [emitted](#emitted) - [kapacitor\_ingress](#kapacitor-ingress) - [points\_received](#points-received) - [kapacitor\_load](#kapacitor-load) - [errors](#errors) - [kapacitor\_memstats](#kapacitor-memstats) - [alloc\_bytes](#alloc-bytes) - [buck\_hash\_sys\_bytes](#buck-hash-sys-bytes) - [frees](#frees) - [gc\_sys\_bytes](#gc-sys-bytes) - [gcc\_pu\_fraction](#gcc-pu-fraction) - [heap\_alloc\_bytes](#heap-alloc-bytes) - [heap\_idle\_bytes](#heap-idle-bytes) - [heap\_in\_use\_bytes](#heap-in-use-bytes) - [heap\_objects](#heap-objects) - [heap\_released\_bytes](#heap-released-bytes) - [heap\_sys\_bytes](#heap-sys-bytes) - [last\_gc\_ns](#last-gc-ns) - [lookups](#lookups) - [mallocs](#mallocs) - [mcache\_in\_use\_bytes](#mcache-in-use-bytes) - [mcache\_sys\_bytes](#mcache-sys-bytes) - [mspan\_in\_use\_bytes](#mspan-in-use-bytes) - [mspan\_sys\_bytes](#mspan-sys-bytes) - [next\_gc\_ns](#next-gc-ns) - [num\_gc](#num-gc) - [other\_sys\_bytes](#other-sys-bytes) - [pause\_total\_ns](#pause-total-ns) - [stack\_in\_use\_bytes](#stack-in-use-bytes) - [stack\_sys\_bytes](#stack-sys-bytes) - [sys\_bytes](#sys-bytes) - [total\_alloc\_bytes](#total-alloc-bytes) - [kapacitor\_nodes](#kapacitor-nodes) - [alerts\_inhibited](#alerts-inhibited) - [alerts\_triggered](#alerts-triggered) - [avg\_exec\_time\_ns](#avg-exec-time-ns) - [crits\_triggered](#crits-triggered) - [errors](#errors) - [infos\_triggered](#infos-triggered) - [oks\_triggered](#oks-triggered) - [points\_written](#points-written) - [warns\_triggered](#warns-triggered) - [write\_errors](#write-errors) - [kapacitor\_topics](#kapacitor-topics) - [collected](#collected) ### kapacitor The `kapacitor` measurement stores fields with information related to [Kapacitor tasks](/kapacitor/v1/introduction/getting-started/#kapacitor-tasks) and [subscriptions](/kapacitor/v1/administration/subscription-management/). #### num\_enabled\_tasks The number of enabled Kapacitor tasks. #### num\_subscriptions The number of Kapacitor/InfluxDB subscriptions. #### num\_tasks The total number of Kapacitor tasks. ### kapacitor\_edges The `kapacitor_edges` measurement stores fields with information related to [edges](/kapacitor/v1/reference/tick/introduction/#pipelines) in Kapacitor TICKscripts. #### collected The number of messages collected by TICKscript edges. #### emitted The number of messages emitted by TICKscript edges. ### kapacitor\_ingress The `kapacitor_ingress` measurement stores fields with information related to data coming into Kapacitor. #### points\_received The number of points received by Kapacitor. ### kapacitor\_load The `kapacitor_load` measurement stores fields with information related to the [Kapacitor Load Directory service](/kapacitor/v1/guides/load_directory/). #### errors The number of errors reported from the load directory service. ### kapacitor\_memstats The `kapacitor_memstats` measurement stores fields related to Kapacitor memory usage. #### alloc\_bytes The number of bytes of memory allocated by Kapacitor that are still in use. #### buck\_hash\_sys\_bytes The number of bytes of memory used by the profiling bucket hash table. #### frees The number of heap objects freed. #### gc\_sys\_bytes The number of bytes of memory used for garbage collection system metadata. #### gcc\_pu\_fraction The fraction of Kapacitor’s available CPU time used by garbage collection since Kapacitor started. #### heap\_alloc\_bytes The number of reachable and unreachable heap objects garbage collection has not freed. #### heap\_idle\_bytes The number of heap bytes waiting to be used. #### heap\_in\_use\_bytes The number of heap bytes in use. #### heap\_objects The number of allocated objects. #### heap\_released\_bytes The number of heap bytes released to the operating system. #### heap\_sys\_bytes The number of heap bytes obtained from `system`. #### last\_gc\_ns The nanosecond epoch time of the last garbage collection. #### lookups The total number of pointer lookups. #### mallocs The total number of mallocs. #### mcache\_in\_use\_bytes The number of bytes in use by mcache structures. #### mcache\_sys\_bytes The number of bytes used for mcache structures obtained from `system`. #### mspan\_in\_use\_bytes The number of bytes in use by mspan structures. #### mspan\_sys\_bytes The number of bytes used for mspan structures obtained from `system`. #### next\_gc\_ns The nanosecond epoch time of the next garbage collection. #### num\_gc The number of completed garbage collection cycles. #### other\_sys\_bytes The number of bytes used for other system allocations. #### pause\_total\_ns The total number of nanoseconds spent in garbage collection “stop-the-world” pauses since Kapacitor started. #### stack\_in\_use\_bytes The number of bytes in use by the stack allocator. #### stack\_sys\_bytes The number of bytes obtained from `system` for stack allocator. #### sys\_bytes The number of bytes of memory obtained from `system`. #### total\_alloc\_bytes The total number of bytes allocated, even if freed. ### kapacitor\_nodes The `kapacitor_nodes` measurement stores fields related to events that occur in [TICKscript nodes](/kapacitor/v1/reference/nodes/). #### alerts\_inhibited The total number of alerts inhibited by TICKscripts. #### alerts\_triggered The total number of alerts triggered by TICKscripts. #### avg\_exec\_time\_ns The average execution time of TICKscripts in nanoseconds. #### crits\_triggered The number of critical (`crit`) alerts triggered by TICKscripts. #### errors The number of errors caused caused by TICKscripts. #### infos\_triggered The number of info (`info`) alerts triggered by TICKscripts. #### oks\_triggered The number of ok (`ok`) alerts triggered by TICKscripts. #### points\_written The number of points written to InfluxDB or back to Kapacitor. #### warns\_triggered The number of warning (`warn`) alerts triggered by TICKscripts. #### working\_cardinality The total number of unique series processed. #### write\_errors The number of errors that occurred when writing to InfluxDB or other write endpoints. ### kapacitor\_topics The `kapacitor_topics` measurement stores fields related to [Kapacitor topics](/kapacitor/v1/working/using_alert_topics/). #### collected The number of events collected by Kapacitor topics.