673 lines
75 KiB
Markdown
673 lines
75 KiB
Markdown
---
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title: Group data in InfluxDB with Flux
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list_title: Group
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description: >
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Use the `group()` function to group data with common values in specific columns.
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menu:
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enterprise_influxdb_v1:
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name: Group
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parent: Query with Flux
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weight: 2
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aliases:
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- /enterprise_influxdb/v1/flux/guides/grouping-data/
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list_query_example: group
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canonical: /influxdb/v2/query-data/flux/group-data/
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---
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With Flux, you can group data by any column in your queried data set.
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"Grouping" partitions data into tables in which each row shares a common value for specified columns.
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This guide walks through grouping data in Flux and provides examples of how data is shaped in the process.
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If you're just getting started with Flux queries, check out the following:
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- [Get started with Flux](/enterprise_influxdb/v1/flux/get-started/) for a conceptual overview of Flux and parts of a Flux query.
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- [Execute queries](/enterprise_influxdb/v1/flux/guides/execute-queries/) to discover a variety of ways to run your queries.
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## Group keys
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Every table has a **group key** – a list of columns which for which every row in the table has the same value.
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###### Example group key
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```js
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[_start, _stop, _field, _measurement, host]
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```
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Grouping data in Flux is essentially defining the group key of output tables.
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Understanding how modifying group keys shapes output data is key to successfully
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grouping and transforming data into your desired output.
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## group() Function
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Flux's [`group()` function](/flux/v0/stdlib/universe/group) defines the
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group key for output tables, i.e. grouping records based on values for specific columns.
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###### group() example
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```js
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dataStream
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|> group(columns: ["cpu", "host"])
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```
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###### Resulting group key
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```js
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[cpu, host]
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```
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The `group()` function has the following parameters:
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### columns
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The list of columns to include or exclude (depending on the [mode](#mode)) in the grouping operation.
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### mode
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The method used to define the group and resulting group key.
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Possible values include `by` and `except`.
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## Example grouping operations
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To illustrate how grouping works, define a `dataSet` variable that queries System
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CPU usage from the `db/rp` bucket.
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Filter the `cpu` tag so it only returns results for each numbered CPU core.
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### Data set
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CPU used by system operations for all numbered CPU cores.
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It uses a regular expression to filter only numbered cores.
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```js
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dataSet = from(bucket: "db/rp")
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|> range(start: -2m)
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|> filter(fn: (r) => r._field == "usage_system" and r.cpu =~ /cpu[0-9*]/)
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|> drop(columns: ["host"])
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```
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{{% note %}}
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This example drops the `host` column from the returned data since the CPU data
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is only tracked for a single host and it simplifies the output tables.
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Don't drop the `host` column if monitoring multiple hosts.
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{{% /note %}}
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{{% truncate %}}
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```
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Table: keys: [_start, _stop, _field, _measurement, cpu]
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_start:time _stop:time _field:string _measurement:string cpu:string _time:time _value:float
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------------------------------ ------------------------------ ---------------------- ---------------------- ---------------------- ------------------------------ ----------------------------
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu0 2018-11-05T21:34:00.000000000Z 7.892107892107892
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu0 2018-11-05T21:34:10.000000000Z 7.2
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu0 2018-11-05T21:34:20.000000000Z 7.4
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu0 2018-11-05T21:34:30.000000000Z 5.5
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu0 2018-11-05T21:34:40.000000000Z 7.4
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu0 2018-11-05T21:34:50.000000000Z 7.5
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu0 2018-11-05T21:35:00.000000000Z 10.3
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu0 2018-11-05T21:35:10.000000000Z 9.2
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu0 2018-11-05T21:35:20.000000000Z 8.4
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu0 2018-11-05T21:35:30.000000000Z 8.5
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu0 2018-11-05T21:35:40.000000000Z 8.6
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu0 2018-11-05T21:35:50.000000000Z 10.2
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu0 2018-11-05T21:36:00.000000000Z 10.6
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Table: keys: [_start, _stop, _field, _measurement, cpu]
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_start:time _stop:time _field:string _measurement:string cpu:string _time:time _value:float
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------------------------------ ------------------------------ ---------------------- ---------------------- ---------------------- ------------------------------ ----------------------------
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu1 2018-11-05T21:34:00.000000000Z 0.7992007992007992
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu1 2018-11-05T21:34:10.000000000Z 0.7
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu1 2018-11-05T21:34:20.000000000Z 0.7
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu1 2018-11-05T21:34:30.000000000Z 0.4
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu1 2018-11-05T21:34:40.000000000Z 0.7
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu1 2018-11-05T21:34:50.000000000Z 0.7
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu1 2018-11-05T21:35:00.000000000Z 1.4
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu1 2018-11-05T21:35:10.000000000Z 1.2
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu1 2018-11-05T21:35:20.000000000Z 0.8
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu1 2018-11-05T21:35:30.000000000Z 0.8991008991008991
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu1 2018-11-05T21:35:40.000000000Z 0.8008008008008008
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu1 2018-11-05T21:35:50.000000000Z 0.999000999000999
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu1 2018-11-05T21:36:00.000000000Z 1.1022044088176353
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Table: keys: [_start, _stop, _field, _measurement, cpu]
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_start:time _stop:time _field:string _measurement:string cpu:string _time:time _value:float
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------------------------------ ------------------------------ ---------------------- ---------------------- ---------------------- ------------------------------ ----------------------------
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu2 2018-11-05T21:34:00.000000000Z 4.1
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu2 2018-11-05T21:34:10.000000000Z 3.6
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu2 2018-11-05T21:34:20.000000000Z 3.5
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu2 2018-11-05T21:34:30.000000000Z 2.6
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu2 2018-11-05T21:34:40.000000000Z 4.5
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu2 2018-11-05T21:34:50.000000000Z 4.895104895104895
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu2 2018-11-05T21:35:00.000000000Z 6.906906906906907
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu2 2018-11-05T21:35:10.000000000Z 5.7
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu2 2018-11-05T21:35:20.000000000Z 5.1
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu2 2018-11-05T21:35:30.000000000Z 4.7
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu2 2018-11-05T21:35:40.000000000Z 5.1
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu2 2018-11-05T21:35:50.000000000Z 5.9
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu2 2018-11-05T21:36:00.000000000Z 6.4935064935064934
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Table: keys: [_start, _stop, _field, _measurement, cpu]
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_start:time _stop:time _field:string _measurement:string cpu:string _time:time _value:float
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------------------------------ ------------------------------ ---------------------- ---------------------- ---------------------- ------------------------------ ----------------------------
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu3 2018-11-05T21:34:00.000000000Z 0.5005005005005005
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu3 2018-11-05T21:34:10.000000000Z 0.5
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu3 2018-11-05T21:34:20.000000000Z 0.5
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu3 2018-11-05T21:34:30.000000000Z 0.3
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu3 2018-11-05T21:34:40.000000000Z 0.6
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu3 2018-11-05T21:34:50.000000000Z 0.6
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu3 2018-11-05T21:35:00.000000000Z 1.3986013986013985
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu3 2018-11-05T21:35:10.000000000Z 0.9
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu3 2018-11-05T21:35:20.000000000Z 0.5005005005005005
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu3 2018-11-05T21:35:30.000000000Z 0.7
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu3 2018-11-05T21:35:40.000000000Z 0.6
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu3 2018-11-05T21:35:50.000000000Z 0.8
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2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z usage_system cpu cpu3 2018-11-05T21:36:00.000000000Z 0.9
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```
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{{% /truncate %}}
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**Note that the group key is output with each table: `Table: keys: <group-key>`.**
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### Group by CPU
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Group the `dataSet` stream by the `cpu` column.
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```js
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dataSet
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|> group(columns: ["cpu"])
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```
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This won't actually change the structure of the data since it already has `cpu`
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in the group key and is therefore grouped by `cpu`.
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However, notice that it does change the group key:
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{{% truncate %}}
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###### Group by CPU output tables
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```
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Table: keys: [cpu]
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cpu:string _stop:time _time:time _value:float _field:string _measurement:string _start:time
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---------------------- ------------------------------ ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
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cpu0 2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:00.000000000Z 7.892107892107892 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu0 2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:10.000000000Z 7.2 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu0 2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:20.000000000Z 7.4 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu0 2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:30.000000000Z 5.5 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu0 2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:40.000000000Z 7.4 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu0 2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:50.000000000Z 7.5 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu0 2018-11-05T21:36:00.000000000Z 2018-11-05T21:35:00.000000000Z 10.3 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu0 2018-11-05T21:36:00.000000000Z 2018-11-05T21:35:10.000000000Z 9.2 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu0 2018-11-05T21:36:00.000000000Z 2018-11-05T21:35:20.000000000Z 8.4 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu0 2018-11-05T21:36:00.000000000Z 2018-11-05T21:35:30.000000000Z 8.5 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu0 2018-11-05T21:36:00.000000000Z 2018-11-05T21:35:40.000000000Z 8.6 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu0 2018-11-05T21:36:00.000000000Z 2018-11-05T21:35:50.000000000Z 10.2 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu0 2018-11-05T21:36:00.000000000Z 2018-11-05T21:36:00.000000000Z 10.6 usage_system cpu 2018-11-05T21:34:00.000000000Z
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Table: keys: [cpu]
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cpu:string _stop:time _time:time _value:float _field:string _measurement:string _start:time
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---------------------- ------------------------------ ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
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cpu1 2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:00.000000000Z 0.7992007992007992 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu1 2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:10.000000000Z 0.7 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu1 2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:20.000000000Z 0.7 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu1 2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:30.000000000Z 0.4 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu1 2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:40.000000000Z 0.7 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu1 2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:50.000000000Z 0.7 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu1 2018-11-05T21:36:00.000000000Z 2018-11-05T21:35:00.000000000Z 1.4 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu1 2018-11-05T21:36:00.000000000Z 2018-11-05T21:35:10.000000000Z 1.2 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu1 2018-11-05T21:36:00.000000000Z 2018-11-05T21:35:20.000000000Z 0.8 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu1 2018-11-05T21:36:00.000000000Z 2018-11-05T21:35:30.000000000Z 0.8991008991008991 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu1 2018-11-05T21:36:00.000000000Z 2018-11-05T21:35:40.000000000Z 0.8008008008008008 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu1 2018-11-05T21:36:00.000000000Z 2018-11-05T21:35:50.000000000Z 0.999000999000999 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu1 2018-11-05T21:36:00.000000000Z 2018-11-05T21:36:00.000000000Z 1.1022044088176353 usage_system cpu 2018-11-05T21:34:00.000000000Z
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Table: keys: [cpu]
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cpu:string _stop:time _time:time _value:float _field:string _measurement:string _start:time
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---------------------- ------------------------------ ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
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cpu2 2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:00.000000000Z 4.1 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu2 2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:10.000000000Z 3.6 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu2 2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:20.000000000Z 3.5 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu2 2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:30.000000000Z 2.6 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu2 2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:40.000000000Z 4.5 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu2 2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:50.000000000Z 4.895104895104895 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu2 2018-11-05T21:36:00.000000000Z 2018-11-05T21:35:00.000000000Z 6.906906906906907 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu2 2018-11-05T21:36:00.000000000Z 2018-11-05T21:35:10.000000000Z 5.7 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu2 2018-11-05T21:36:00.000000000Z 2018-11-05T21:35:20.000000000Z 5.1 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu2 2018-11-05T21:36:00.000000000Z 2018-11-05T21:35:30.000000000Z 4.7 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu2 2018-11-05T21:36:00.000000000Z 2018-11-05T21:35:40.000000000Z 5.1 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu2 2018-11-05T21:36:00.000000000Z 2018-11-05T21:35:50.000000000Z 5.9 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu2 2018-11-05T21:36:00.000000000Z 2018-11-05T21:36:00.000000000Z 6.4935064935064934 usage_system cpu 2018-11-05T21:34:00.000000000Z
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Table: keys: [cpu]
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cpu:string _stop:time _time:time _value:float _field:string _measurement:string _start:time
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---------------------- ------------------------------ ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
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cpu3 2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:00.000000000Z 0.5005005005005005 usage_system cpu 2018-11-05T21:34:00.000000000Z
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cpu3 2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:10.000000000Z 0.5 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
cpu3 2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:20.000000000Z 0.5 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
cpu3 2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:30.000000000Z 0.3 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
cpu3 2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:40.000000000Z 0.6 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
cpu3 2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:50.000000000Z 0.6 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
cpu3 2018-11-05T21:36:00.000000000Z 2018-11-05T21:35:00.000000000Z 1.3986013986013985 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
cpu3 2018-11-05T21:36:00.000000000Z 2018-11-05T21:35:10.000000000Z 0.9 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
cpu3 2018-11-05T21:36:00.000000000Z 2018-11-05T21:35:20.000000000Z 0.5005005005005005 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
cpu3 2018-11-05T21:36:00.000000000Z 2018-11-05T21:35:30.000000000Z 0.7 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
cpu3 2018-11-05T21:36:00.000000000Z 2018-11-05T21:35:40.000000000Z 0.6 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
cpu3 2018-11-05T21:36:00.000000000Z 2018-11-05T21:35:50.000000000Z 0.8 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
cpu3 2018-11-05T21:36:00.000000000Z 2018-11-05T21:36:00.000000000Z 0.9 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
```
|
||
{{% /truncate %}}
|
||
|
||
The visualization remains the same.
|
||
|
||
|
||
|
||
### Group by time
|
||
Grouping data by the `_time` column is a good illustration of how grouping changes the structure of your data.
|
||
|
||
```js
|
||
dataSet
|
||
|> group(columns: ["_time"])
|
||
```
|
||
|
||
When grouping by `_time`, all records that share a common `_time` value are grouped into individual tables.
|
||
So each output table represents a single point in time.
|
||
|
||
{{% truncate %}}
|
||
###### Group by time output tables
|
||
```
|
||
Table: keys: [_time]
|
||
_time:time _start:time _stop:time _value:float _field:string _measurement:string cpu:string
|
||
------------------------------ ------------------------------ ------------------------------ ---------------------------- ---------------------- ---------------------- ----------------------
|
||
2018-11-05T21:34:00.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 7.892107892107892 usage_system cpu cpu0
|
||
2018-11-05T21:34:00.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 0.7992007992007992 usage_system cpu cpu1
|
||
2018-11-05T21:34:00.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 4.1 usage_system cpu cpu2
|
||
2018-11-05T21:34:00.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 0.5005005005005005 usage_system cpu cpu3
|
||
|
||
Table: keys: [_time]
|
||
_time:time _start:time _stop:time _value:float _field:string _measurement:string cpu:string
|
||
------------------------------ ------------------------------ ------------------------------ ---------------------------- ---------------------- ---------------------- ----------------------
|
||
2018-11-05T21:34:10.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 7.2 usage_system cpu cpu0
|
||
2018-11-05T21:34:10.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 0.7 usage_system cpu cpu1
|
||
2018-11-05T21:34:10.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 3.6 usage_system cpu cpu2
|
||
2018-11-05T21:34:10.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 0.5 usage_system cpu cpu3
|
||
|
||
Table: keys: [_time]
|
||
_time:time _start:time _stop:time _value:float _field:string _measurement:string cpu:string
|
||
------------------------------ ------------------------------ ------------------------------ ---------------------------- ---------------------- ---------------------- ----------------------
|
||
2018-11-05T21:34:20.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 7.4 usage_system cpu cpu0
|
||
2018-11-05T21:34:20.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 0.7 usage_system cpu cpu1
|
||
2018-11-05T21:34:20.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 3.5 usage_system cpu cpu2
|
||
2018-11-05T21:34:20.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 0.5 usage_system cpu cpu3
|
||
|
||
Table: keys: [_time]
|
||
_time:time _start:time _stop:time _value:float _field:string _measurement:string cpu:string
|
||
------------------------------ ------------------------------ ------------------------------ ---------------------------- ---------------------- ---------------------- ----------------------
|
||
2018-11-05T21:34:30.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 5.5 usage_system cpu cpu0
|
||
2018-11-05T21:34:30.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 0.4 usage_system cpu cpu1
|
||
2018-11-05T21:34:30.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 2.6 usage_system cpu cpu2
|
||
2018-11-05T21:34:30.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 0.3 usage_system cpu cpu3
|
||
|
||
Table: keys: [_time]
|
||
_time:time _start:time _stop:time _value:float _field:string _measurement:string cpu:string
|
||
------------------------------ ------------------------------ ------------------------------ ---------------------------- ---------------------- ---------------------- ----------------------
|
||
2018-11-05T21:34:40.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 7.4 usage_system cpu cpu0
|
||
2018-11-05T21:34:40.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 0.7 usage_system cpu cpu1
|
||
2018-11-05T21:34:40.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 4.5 usage_system cpu cpu2
|
||
2018-11-05T21:34:40.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 0.6 usage_system cpu cpu3
|
||
|
||
Table: keys: [_time]
|
||
_time:time _start:time _stop:time _value:float _field:string _measurement:string cpu:string
|
||
------------------------------ ------------------------------ ------------------------------ ---------------------------- ---------------------- ---------------------- ----------------------
|
||
2018-11-05T21:34:50.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 7.5 usage_system cpu cpu0
|
||
2018-11-05T21:34:50.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 0.7 usage_system cpu cpu1
|
||
2018-11-05T21:34:50.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 4.895104895104895 usage_system cpu cpu2
|
||
2018-11-05T21:34:50.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 0.6 usage_system cpu cpu3
|
||
|
||
Table: keys: [_time]
|
||
_time:time _start:time _stop:time _value:float _field:string _measurement:string cpu:string
|
||
------------------------------ ------------------------------ ------------------------------ ---------------------------- ---------------------- ---------------------- ----------------------
|
||
2018-11-05T21:35:00.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 10.3 usage_system cpu cpu0
|
||
2018-11-05T21:35:00.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 1.4 usage_system cpu cpu1
|
||
2018-11-05T21:35:00.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 6.906906906906907 usage_system cpu cpu2
|
||
2018-11-05T21:35:00.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 1.3986013986013985 usage_system cpu cpu3
|
||
|
||
Table: keys: [_time]
|
||
_time:time _start:time _stop:time _value:float _field:string _measurement:string cpu:string
|
||
------------------------------ ------------------------------ ------------------------------ ---------------------------- ---------------------- ---------------------- ----------------------
|
||
2018-11-05T21:35:10.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 9.2 usage_system cpu cpu0
|
||
2018-11-05T21:35:10.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 1.2 usage_system cpu cpu1
|
||
2018-11-05T21:35:10.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 5.7 usage_system cpu cpu2
|
||
2018-11-05T21:35:10.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 0.9 usage_system cpu cpu3
|
||
|
||
Table: keys: [_time]
|
||
_time:time _start:time _stop:time _value:float _field:string _measurement:string cpu:string
|
||
------------------------------ ------------------------------ ------------------------------ ---------------------------- ---------------------- ---------------------- ----------------------
|
||
2018-11-05T21:35:20.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 8.4 usage_system cpu cpu0
|
||
2018-11-05T21:35:20.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 0.8 usage_system cpu cpu1
|
||
2018-11-05T21:35:20.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 5.1 usage_system cpu cpu2
|
||
2018-11-05T21:35:20.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 0.5005005005005005 usage_system cpu cpu3
|
||
|
||
Table: keys: [_time]
|
||
_time:time _start:time _stop:time _value:float _field:string _measurement:string cpu:string
|
||
------------------------------ ------------------------------ ------------------------------ ---------------------------- ---------------------- ---------------------- ----------------------
|
||
2018-11-05T21:35:30.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 8.5 usage_system cpu cpu0
|
||
2018-11-05T21:35:30.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 0.8991008991008991 usage_system cpu cpu1
|
||
2018-11-05T21:35:30.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 4.7 usage_system cpu cpu2
|
||
2018-11-05T21:35:30.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 0.7 usage_system cpu cpu3
|
||
|
||
Table: keys: [_time]
|
||
_time:time _start:time _stop:time _value:float _field:string _measurement:string cpu:string
|
||
------------------------------ ------------------------------ ------------------------------ ---------------------------- ---------------------- ---------------------- ----------------------
|
||
2018-11-05T21:35:40.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 8.6 usage_system cpu cpu0
|
||
2018-11-05T21:35:40.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 0.8008008008008008 usage_system cpu cpu1
|
||
2018-11-05T21:35:40.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 5.1 usage_system cpu cpu2
|
||
2018-11-05T21:35:40.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 0.6 usage_system cpu cpu3
|
||
|
||
Table: keys: [_time]
|
||
_time:time _start:time _stop:time _value:float _field:string _measurement:string cpu:string
|
||
------------------------------ ------------------------------ ------------------------------ ---------------------------- ---------------------- ---------------------- ----------------------
|
||
2018-11-05T21:35:50.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 10.2 usage_system cpu cpu0
|
||
2018-11-05T21:35:50.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 0.999000999000999 usage_system cpu cpu1
|
||
2018-11-05T21:35:50.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 5.9 usage_system cpu cpu2
|
||
2018-11-05T21:35:50.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 0.8 usage_system cpu cpu3
|
||
|
||
Table: keys: [_time]
|
||
_time:time _start:time _stop:time _value:float _field:string _measurement:string cpu:string
|
||
------------------------------ ------------------------------ ------------------------------ ---------------------------- ---------------------- ---------------------- ----------------------
|
||
2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 10.6 usage_system cpu cpu0
|
||
2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 1.1022044088176353 usage_system cpu cpu1
|
||
2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 6.4935064935064934 usage_system cpu cpu2
|
||
2018-11-05T21:36:00.000000000Z 2018-11-05T21:34:00.000000000Z 2018-11-05T21:36:00.000000000Z 0.9 usage_system cpu cpu3
|
||
```
|
||
{{% /truncate %}}
|
||
|
||
Because each timestamp is structured as a separate table, when visualized, all
|
||
points that share the same timestamp appear connected.
|
||
|
||
|
||
|
||
{{% note %}}
|
||
With some further processing, you could calculate the average CPU usage across all CPUs per point
|
||
of time and group them into a single table, but we won't cover that in this example.
|
||
If you're interested in running and visualizing this yourself, here's what the query would look like:
|
||
|
||
```js
|
||
dataSet
|
||
|> group(columns: ["_time"])
|
||
|> mean()
|
||
|> group(columns: ["_value", "_time"], mode: "except")
|
||
```
|
||
{{% /note %}}
|
||
|
||
## Group by CPU and time
|
||
Group by the `cpu` and `_time` columns.
|
||
|
||
```js
|
||
dataSet
|
||
|> group(columns: ["cpu", "_time"])
|
||
```
|
||
|
||
This outputs a table for every unique `cpu` and `_time` combination:
|
||
|
||
{{% truncate %}}
|
||
###### Group by CPU and time output tables
|
||
```
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:34:00.000000000Z cpu0 2018-11-05T21:36:00.000000000Z 7.892107892107892 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:34:00.000000000Z cpu1 2018-11-05T21:36:00.000000000Z 0.7992007992007992 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:34:00.000000000Z cpu2 2018-11-05T21:36:00.000000000Z 4.1 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:34:00.000000000Z cpu3 2018-11-05T21:36:00.000000000Z 0.5005005005005005 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:34:10.000000000Z cpu0 2018-11-05T21:36:00.000000000Z 7.2 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:34:10.000000000Z cpu1 2018-11-05T21:36:00.000000000Z 0.7 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:34:10.000000000Z cpu2 2018-11-05T21:36:00.000000000Z 3.6 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:34:10.000000000Z cpu3 2018-11-05T21:36:00.000000000Z 0.5 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:34:20.000000000Z cpu0 2018-11-05T21:36:00.000000000Z 7.4 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:34:20.000000000Z cpu1 2018-11-05T21:36:00.000000000Z 0.7 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:34:20.000000000Z cpu2 2018-11-05T21:36:00.000000000Z 3.5 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:34:20.000000000Z cpu3 2018-11-05T21:36:00.000000000Z 0.5 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:34:30.000000000Z cpu0 2018-11-05T21:36:00.000000000Z 5.5 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:34:30.000000000Z cpu1 2018-11-05T21:36:00.000000000Z 0.4 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:34:30.000000000Z cpu2 2018-11-05T21:36:00.000000000Z 2.6 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:34:30.000000000Z cpu3 2018-11-05T21:36:00.000000000Z 0.3 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:34:40.000000000Z cpu0 2018-11-05T21:36:00.000000000Z 7.4 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:34:40.000000000Z cpu1 2018-11-05T21:36:00.000000000Z 0.7 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:34:40.000000000Z cpu2 2018-11-05T21:36:00.000000000Z 4.5 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:34:40.000000000Z cpu3 2018-11-05T21:36:00.000000000Z 0.6 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:34:50.000000000Z cpu0 2018-11-05T21:36:00.000000000Z 7.5 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:34:50.000000000Z cpu1 2018-11-05T21:36:00.000000000Z 0.7 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:34:50.000000000Z cpu2 2018-11-05T21:36:00.000000000Z 4.895104895104895 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:34:50.000000000Z cpu3 2018-11-05T21:36:00.000000000Z 0.6 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:35:00.000000000Z cpu0 2018-11-05T21:36:00.000000000Z 10.3 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:35:00.000000000Z cpu1 2018-11-05T21:36:00.000000000Z 1.4 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:35:00.000000000Z cpu2 2018-11-05T21:36:00.000000000Z 6.906906906906907 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:35:00.000000000Z cpu3 2018-11-05T21:36:00.000000000Z 1.3986013986013985 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:35:10.000000000Z cpu0 2018-11-05T21:36:00.000000000Z 9.2 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:35:10.000000000Z cpu1 2018-11-05T21:36:00.000000000Z 1.2 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:35:10.000000000Z cpu2 2018-11-05T21:36:00.000000000Z 5.7 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:35:10.000000000Z cpu3 2018-11-05T21:36:00.000000000Z 0.9 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:35:20.000000000Z cpu0 2018-11-05T21:36:00.000000000Z 8.4 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:35:20.000000000Z cpu1 2018-11-05T21:36:00.000000000Z 0.8 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:35:20.000000000Z cpu2 2018-11-05T21:36:00.000000000Z 5.1 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:35:20.000000000Z cpu3 2018-11-05T21:36:00.000000000Z 0.5005005005005005 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:35:30.000000000Z cpu0 2018-11-05T21:36:00.000000000Z 8.5 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:35:30.000000000Z cpu1 2018-11-05T21:36:00.000000000Z 0.8991008991008991 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:35:30.000000000Z cpu2 2018-11-05T21:36:00.000000000Z 4.7 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:35:30.000000000Z cpu3 2018-11-05T21:36:00.000000000Z 0.7 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:35:40.000000000Z cpu0 2018-11-05T21:36:00.000000000Z 8.6 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:35:40.000000000Z cpu1 2018-11-05T21:36:00.000000000Z 0.8008008008008008 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:35:40.000000000Z cpu2 2018-11-05T21:36:00.000000000Z 5.1 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:35:40.000000000Z cpu3 2018-11-05T21:36:00.000000000Z 0.6 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:35:50.000000000Z cpu0 2018-11-05T21:36:00.000000000Z 10.2 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:35:50.000000000Z cpu1 2018-11-05T21:36:00.000000000Z 0.999000999000999 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:35:50.000000000Z cpu2 2018-11-05T21:36:00.000000000Z 5.9 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:35:50.000000000Z cpu3 2018-11-05T21:36:00.000000000Z 0.8 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:36:00.000000000Z cpu0 2018-11-05T21:36:00.000000000Z 10.6 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:36:00.000000000Z cpu1 2018-11-05T21:36:00.000000000Z 1.1022044088176353 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:36:00.000000000Z cpu2 2018-11-05T21:36:00.000000000Z 6.4935064935064934 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
|
||
Table: keys: [_time, cpu]
|
||
_time:time cpu:string _stop:time _value:float _field:string _measurement:string _start:time
|
||
------------------------------ ---------------------- ------------------------------ ---------------------------- ---------------------- ---------------------- ------------------------------
|
||
2018-11-05T21:36:00.000000000Z cpu3 2018-11-05T21:36:00.000000000Z 0.9 usage_system cpu 2018-11-05T21:34:00.000000000Z
|
||
```
|
||
{{% /truncate %}}
|
||
|
||
When visualized, tables appear as individual, unconnected points.
|
||
|
||
|
||
|
||
Grouping by `cpu` and `_time` is a good illustration of how grouping works.
|
||
|
||
## In conclusion
|
||
Grouping is a powerful way to shape your data into your desired output format.
|
||
It modifies the group keys of output tables, grouping records into tables that
|
||
all share common values within specified columns.
|