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telegraf/plugins/inputs/kapacitor/README.md

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Kapacitor input plugin (#2031)
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# Kapacitor Plugin
Document kapacitor_alert and kapacitor_cluster measurements (#7278)
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The Kapacitor plugin collects metrics from the given Kapacitor instances.
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### Configuration:
```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"
]
## Time limit for http requests
timeout = "5s"
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## Optional TLS Config
# tls_ca = "/etc/telegraf/ca.pem"
# tls_cert = "/etc/telegraf/cert.pem"
# tls_key = "/etc/telegraf/key.pem"
## Use TLS but skip chain & host verification
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# insecure_skip_verify = false
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```
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### Measurements and fields
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- [kapacitor](#kapacitor)
- [num_enabled_tasks](#num_enabled_tasks) _(integer)_
- [num_subscriptions](#num_subscriptions) _(integer)_
- [num_tasks](#num_tasks) _(integer)_
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- [kapacitor_alert](#kapacitor_alert)
- [notification_dropped](#notification_dropped) _(integer)_
- [primary-handle-count](#primary-handle-count) _(integer)_
- [secondary-handle-count](#secondary-handle-count) _(integer)_
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- (Kapacitor Enterprise only) [kapacitor_cluster](#kapacitor_cluster) _(integer)_
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- [dropped_member_events](#dropped_member_events) _(integer)_
- [dropped_user_events](#dropped_user_events) _(integer)_
- [query_handler_errors](#query_handler_errors) _(integer)_
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- [kapacitor_edges](#kapacitor_edges)
- [collected](#collected) _(integer)_
- [emitted](#emitted) _(integer)_
- [kapacitor_ingress](#kapacitor_ingress)
- [points_received](#points_received) _(integer)_
- [kapacitor_load](#kapacitor_load)
- [errors](#errors) _(integer)_
- [kapacitor_memstats](#kapacitor_memstats)
- [alloc_bytes](#alloc_bytes) _(integer)_
- [buck_hash_sys_bytes](#buck_hash_sys_bytes) _(integer)_
- [frees](#frees) _(integer)_
- [gc_sys_bytes](#gc_sys_bytes) _(integer)_
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- [gc_cpu_fraction](#gc_cpu_fraction) _(float)_
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- [heap_alloc_bytes](#heap_alloc_bytes) _(integer)_
- [heap_idle_bytes](#heap_idle_bytes) _(integer)_
- [heap_in_use_bytes](#heap_in_use_bytes) _(integer)_
- [heap_objects](#heap_objects) _(integer)_
- [heap_released_bytes](#heap_released_bytes) _(integer)_
- [heap_sys_bytes](#heap_sys_bytes) _(integer)_
- [last_gc_ns](#last_gc_ns) _(integer)_
- [lookups](#lookups) _(integer)_
- [mallocs](#mallocs) _(integer)_
- [mcache_in_use_bytes](#mcache_in_use_bytes) _(integer)_
- [mcache_sys_bytes](#mcache_sys_bytes) _(integer)_
- [mspan_in_use_bytes](#mspan_in_use_bytes) _(integer)_
- [mspan_sys_bytes](#mspan_sys_bytes) _(integer)_
- [next_gc_ns](#next_gc_ns) _(integer)_
- [num_gc](#num_gc) _(integer)_
- [other_sys_bytes](#other_sys_bytes) _(integer)_
- [pause_total_ns](#pause_total_ns) _(integer)_
- [stack_in_use_bytes](#stack_in_use_bytes) _(integer)_
- [stack_sys_bytes](#stack_sys_bytes) _(integer)_
- [sys_bytes](#sys_bytes) _(integer)_
- [total_alloc_bytes](#total_alloc_bytes) _(integer)_
- [kapacitor_nodes](#kapacitor_nodes)
- [alerts_inhibited](#alerts_inhibited) _(integer)_
- [alerts_triggered](#alerts_triggered) _(integer)_
- [avg_exec_time_ns](#avg_exec_time_ns) _(integer)_
- [crits_triggered](#crits_triggered) _(integer)_
- [errors](#errors) _(integer)_
- [infos_triggered](#infos_triggered) _(integer)_
- [oks_triggered](#oks_triggered) _(integer)_
- [points_written](#points_written) _(integer)_
- [warns_triggered](#warns_triggered) _(integer)_
- [write_errors](#write_errors) _(integer)_
- [kapacitor_topics](#kapacitor_topics)
- [collected](#collected) _(integer)_
---
### kapacitor
The `kapacitor` measurement stores fields with information related to
[Kapacitor tasks](https://docs.influxdata.com/kapacitor/latest/introduction/getting-started/#kapacitor-tasks)
and [subscriptions](https://docs.influxdata.com/kapacitor/latest/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.
---
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### kapacitor_alert
The `kapacitor_alert` measurement stores fields with information related to
[Kapacitor alerts](https://docs.influxdata.com/kapacitor/v1.5/working/alerts/).
#### notification-dropped
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The number of internal notifications dropped because they arrive too late from another Kapacitor node.
If this count is increasing, Kapacitor Enterprise nodes aren't able to communicate fast enough
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to keep up with the volume of alerts.
#### primary-handle-count
The number of times this node handled an alert as the primary. This count should increase under normal conditions.
#### secondary-handle-count
The number of times this node handled an alert as the secondary. An increase in this counter indicates that the primary is failing to handle alerts in a timely manner.
---
### kapacitor_cluster
The `kapacitor_cluster` measurement reflects the ability of [Kapacitor nodes to communicate](https://docs.influxdata.com/enterprise_kapacitor/v1.5/administration/configuration/#cluster-communications) with one another. Specifically, these metrics track the gossip communication between the Kapacitor nodes.
#### dropped_member_events
The number of gossip member events that were dropped.
#### dropped_user_events
The number of gossip user events that were dropped.
---
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### kapacitor_edges
The `kapacitor_edges` measurement stores fields with information related to
[edges](https://docs.influxdata.com/kapacitor/latest/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](https://docs.influxdata.com/kapacitor/latest/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.
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#### gc_cpu_fraction
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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
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The number of heap bytes obtained from `system`.
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#### 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](https://docs.influxdata.com/kapacitor/latest/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](https://docs.influxdata.com/kapacitor/latest/working/using_alert_topics/).
#### collected
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The number of events collected by Kapacitor topics.
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---
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*Note:* The Kapacitor variables `host`, `cluster_id`, and `server_id`
are currently not recorded due to the potential high cardinality of
these values.
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## Example Output
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```
Fix telegraf example arguments (#2788) Many of the examples provided within documentation are using a single dash for the command line arguments, but the telegraf executable explicitly has two dashes. There are also some inconsistencies with the ordering of the command line argument examples. I've ordered them so that the examples will show: config, config-directory, input-filter, test
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$ telegraf --config /etc/telegraf.conf --input-filter kapacitor --test
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* Plugin: inputs.kapacitor, Collection 1
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> kapacitor_memstats,host=hostname.local,kap_version=1.1.0~rc2,url=http://localhost:9092/kapacitor/v1/debug/vars alloc_bytes=6974808i,buck_hash_sys_bytes=1452609i,frees=207281i,gc_sys_bytes=802816i,gc_cpu_fraction=0.00004693548939673313,heap_alloc_bytes=6974808i,heap_idle_bytes=6742016i,heap_in_use_bytes=9183232i,heap_objects=23216i,heap_released_bytes=0i,heap_sys_bytes=15925248i,last_gc_ns=1478791460012676997i,lookups=88i,mallocs=230497i,mcache_in_use_bytes=9600i,mcache_sys_bytes=16384i,mspan_in_use_bytes=98560i,mspan_sys_bytes=131072i,next_gc_ns=11467528i,num_gc=8i,other_sys_bytes=2236087i,pause_total_ns=2994110i,stack_in_use_bytes=1900544i,stack_sys_bytes=1900544i,sys_bytes=22464760i,total_alloc_bytes=35023600i 1478791462000000000
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> kapacitor,host=hostname.local,kap_version=1.1.0~rc2,url=http://localhost:9092/kapacitor/v1/debug/vars num_enabled_tasks=5i,num_subscriptions=5i,num_tasks=5i 1478791462000000000
> kapacitor_edges,child=stream0,host=hostname.local,parent=stream,task=deadman-test,type=stream collected=0,emitted=0 1478791462000000000
> kapacitor_ingress,database=_internal,host=hostname.local,measurement=shard,retention_policy=monitor,task_master=main points_received=120 1478791462000000000
> kapacitor_ingress,database=_internal,host=hostname.local,measurement=subscriber,retention_policy=monitor,task_master=main points_received=60 1478791462000000000
> kapacitor_nodes,host=hostname.local,kind=http_out,node=http_out3,task=sys-stats,type=stream avg_exec_time_ns=0i 1478791462000000000
> kapacitor_edges,child=window6,host=hostname.local,parent=derivative5,task=deadman-test,type=stream collected=0,emitted=0 1478791462000000000
> kapacitor_nodes,host=hostname.local,kind=from,node=from1,task=sys-stats,type=stream avg_exec_time_ns=0i 1478791462000000000
> kapacitor_nodes,host=hostname.local,kind=stream,node=stream0,task=test,type=stream avg_exec_time_ns=0i 1478791462000000000
> kapacitor_nodes,host=hostname.local,kind=window,node=window6,task=deadman-test,type=stream avg_exec_time_ns=0i 1478791462000000000
> kapacitor_ingress,database=_internal,host=hostname.local,measurement=cq,retention_policy=monitor,task_master=main points_received=10 1478791462000000000
> kapacitor_edges,child=http_out3,host=hostname.local,parent=window2,task=sys-stats,type=batch collected=0,emitted=0 1478791462000000000
> kapacitor_edges,child=mean4,host=hostname.local,parent=log3,task=deadman-test,type=batch collected=0,emitted=0 1478791462000000000
> kapacitor_ingress,database=_kapacitor,host=hostname.local,measurement=nodes,retention_policy=autogen,task_master=main points_received=207 1478791462000000000
> kapacitor_edges,child=stream0,host=hostname.local,parent=stream,task=sys-stats,type=stream collected=0,emitted=0 1478791462000000000
> kapacitor_edges,child=log6,host=hostname.local,parent=sum5,task=derivative-test,type=stream collected=0,emitted=0 1478791462000000000
> kapacitor_edges,child=from1,host=hostname.local,parent=stream0,task=sys-stats,type=stream collected=0,emitted=0 1478791462000000000
> kapacitor_nodes,host=hostname.local,kind=alert,node=alert2,task=test,type=stream alerts_triggered=0,avg_exec_time_ns=0i,crits_triggered=0,infos_triggered=0,oks_triggered=0,warns_triggered=0 1478791462000000000
> kapacitor_edges,child=log3,host=hostname.local,parent=derivative2,task=derivative-test,type=stream collected=0,emitted=0 1478791462000000000
> kapacitor_ingress,database=_kapacitor,host=hostname.local,measurement=runtime,retention_policy=autogen,task_master=main points_received=9 1478791462000000000
> kapacitor_ingress,database=_internal,host=hostname.local,measurement=tsm1_filestore,retention_policy=monitor,task_master=main points_received=120 1478791462000000000
> kapacitor_edges,child=derivative2,host=hostname.local,parent=from1,task=derivative-test,type=stream collected=0,emitted=0 1478791462000000000
> kapacitor_nodes,host=hostname.local,kind=stream,node=stream0,task=derivative-test,type=stream avg_exec_time_ns=0i 1478791462000000000
> kapacitor_ingress,database=_internal,host=hostname.local,measurement=queryExecutor,retention_policy=monitor,task_master=main points_received=10 1478791462000000000
> kapacitor_ingress,database=_internal,host=hostname.local,measurement=tsm1_wal,retention_policy=monitor,task_master=main points_received=120 1478791462000000000
> kapacitor_nodes,host=hostname.local,kind=log,node=log6,task=derivative-test,type=stream avg_exec_time_ns=0i 1478791462000000000
> kapacitor_edges,child=stream,host=hostname.local,parent=stats,task=task_master:main,type=stream collected=598,emitted=598 1478791462000000000
> kapacitor_ingress,database=_internal,host=hostname.local,measurement=write,retention_policy=monitor,task_master=main points_received=10 1478791462000000000
> kapacitor_edges,child=stream0,host=hostname.local,parent=stream,task=derivative-test,type=stream collected=0,emitted=0 1478791462000000000
> kapacitor_nodes,host=hostname.local,kind=log,node=log3,task=deadman-test,type=stream avg_exec_time_ns=0i 1478791462000000000
> kapacitor_nodes,host=hostname.local,kind=from,node=from1,task=deadman-test,type=stream avg_exec_time_ns=0i 1478791462000000000
> kapacitor_ingress,database=_kapacitor,host=hostname.local,measurement=ingress,retention_policy=autogen,task_master=main points_received=148 1478791462000000000
> kapacitor_nodes,host=hostname.local,kind=eval,node=eval4,task=derivative-test,type=stream avg_exec_time_ns=0i,eval_errors=0 1478791462000000000
> kapacitor_nodes,host=hostname.local,kind=derivative,node=derivative2,task=derivative-test,type=stream avg_exec_time_ns=0i 1478791462000000000
> kapacitor_ingress,database=_internal,host=hostname.local,measurement=runtime,retention_policy=monitor,task_master=main points_received=10 1478791462000000000
> kapacitor_ingress,database=_internal,host=hostname.local,measurement=httpd,retention_policy=monitor,task_master=main points_received=10 1478791462000000000
> kapacitor_edges,child=sum5,host=hostname.local,parent=eval4,task=derivative-test,type=stream collected=0,emitted=0 1478791462000000000
> kapacitor_ingress,database=_kapacitor,host=hostname.local,measurement=kapacitor,retention_policy=autogen,task_master=main points_received=9 1478791462000000000
> kapacitor_nodes,host=hostname.local,kind=from,node=from1,task=test,type=stream avg_exec_time_ns=0i 1478791462000000000
> kapacitor_ingress,database=_internal,host=hostname.local,measurement=tsm1_engine,retention_policy=monitor,task_master=main points_received=120 1478791462000000000
> kapacitor_nodes,host=hostname.local,kind=window,node=window2,task=deadman-test,type=stream avg_exec_time_ns=0i 1478791462000000000
> kapacitor_nodes,host=hostname.local,kind=stream,node=stream0,task=deadman-test,type=stream avg_exec_time_ns=0i 1478791462000000000
> kapacitor_edges,child=influxdb_out4,host=hostname.local,parent=http_out3,task=sys-stats,type=batch collected=0,emitted=0 1478791462000000000
> kapacitor_edges,child=window2,host=hostname.local,parent=from1,task=deadman-test,type=stream collected=0,emitted=0 1478791462000000000
> kapacitor_nodes,host=hostname.local,kind=from,node=from1,task=derivative-test,type=stream avg_exec_time_ns=0i 1478791462000000000
> kapacitor_edges,child=from1,host=hostname.local,parent=stream0,task=deadman-test,type=stream collected=0,emitted=0 1478791462000000000
> kapacitor_ingress,database=_internal,host=hostname.local,measurement=database,retention_policy=monitor,task_master=main points_received=40 1478791462000000000
> kapacitor_edges,child=stream,host=hostname.local,parent=write_points,task=task_master:main,type=stream collected=750,emitted=750 1478791462000000000
> kapacitor_edges,child=log7,host=hostname.local,parent=window6,task=deadman-test,type=batch collected=0,emitted=0 1478791462000000000
> kapacitor_edges,child=window2,host=hostname.local,parent=from1,task=sys-stats,type=stream collected=0,emitted=0 1478791462000000000
> kapacitor_nodes,host=hostname.local,kind=log,node=log7,task=deadman-test,type=stream avg_exec_time_ns=0i 1478791462000000000
> kapacitor_ingress,database=_kapacitor,host=hostname.local,measurement=edges,retention_policy=autogen,task_master=main points_received=225 1478791462000000000
> kapacitor_nodes,host=hostname.local,kind=derivative,node=derivative5,task=deadman-test,type=stream avg_exec_time_ns=0i 1478791462000000000
> kapacitor_edges,child=from1,host=hostname.local,parent=stream0,task=test,type=stream collected=0,emitted=0 1478791462000000000
> kapacitor_edges,child=alert2,host=hostname.local,parent=from1,task=test,type=stream collected=0,emitted=0 1478791462000000000
> kapacitor_nodes,host=hostname.local,kind=log,node=log3,task=derivative-test,type=stream avg_exec_time_ns=0i 1478791462000000000
> kapacitor_nodes,host=hostname.local,kind=influxdb_out,node=influxdb_out4,task=sys-stats,type=stream avg_exec_time_ns=0i,points_written=0,write_errors=0 1478791462000000000
> kapacitor_edges,child=stream0,host=hostname.local,parent=stream,task=test,type=stream collected=0,emitted=0 1478791462000000000
> kapacitor_edges,child=log3,host=hostname.local,parent=window2,task=deadman-test,type=batch collected=0,emitted=0 1478791462000000000
> kapacitor_edges,child=derivative5,host=hostname.local,parent=mean4,task=deadman-test,type=stream collected=0,emitted=0 1478791462000000000
> kapacitor_nodes,host=hostname.local,kind=stream,node=stream0,task=sys-stats,type=stream avg_exec_time_ns=0i 1478791462000000000
> kapacitor_nodes,host=hostname.local,kind=window,node=window2,task=sys-stats,type=stream avg_exec_time_ns=0i 1478791462000000000
> kapacitor_nodes,host=hostname.local,kind=mean,node=mean4,task=deadman-test,type=stream avg_exec_time_ns=0i 1478791462000000000
> kapacitor_edges,child=from1,host=hostname.local,parent=stream0,task=derivative-test,type=stream collected=0,emitted=0 1478791462000000000
> kapacitor_ingress,database=_internal,host=hostname.local,measurement=tsm1_cache,retention_policy=monitor,task_master=main points_received=120 1478791462000000000
> kapacitor_nodes,host=hostname.local,kind=sum,node=sum5,task=derivative-test,type=stream avg_exec_time_ns=0i 1478791462000000000
> kapacitor_edges,child=eval4,host=hostname.local,parent=log3,task=derivative-test,type=stream collected=0,emitted=0 1478791462000000000
```