86 lines
5.6 KiB
Markdown
86 lines
5.6 KiB
Markdown
|
# Telegraf Plugin: Cloudwatch
|
|||
|
|
|
|||
|
|
## Configuration:
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
# Read metrics from Cloudwatch
|
|||
|
|
[[inputs.cloudwatch]]
|
|||
|
|
## AWS region
|
|||
|
|
region = "us-east-1"
|
|||
|
|
## specify namespaces as strings
|
|||
|
|
namespaces = ["AWS/EC2", "AWS/DynamoDB"]
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
In each iteration, the cloudwatch input plugin queries Cloudwatch for
|
|||
|
|
datapoints that are timestamped since the last iteration. (The first
|
|||
|
|
iteration does not retrieve any data.)
|
|||
|
|
|
|||
|
|
Some AWS services post timepoints late, in the sense that new
|
|||
|
|
timepoints are timestamped 2–3 minutes in the past. These points will
|
|||
|
|
be missed by the cloudwatch input plugin if you run telegraf with a
|
|||
|
|
short `interval`. Running telegraf with a longer interval, such as
|
|||
|
|
`5m`, is recommended.
|
|||
|
|
|
|||
|
|
|
|||
|
|
## Measurements:
|
|||
|
|
|
|||
|
|
Each namespace becomes a measurement, converted to snake_case and
|
|||
|
|
prefixed with `cloudwatch`. For instance, the namespace `AWS/EC2`
|
|||
|
|
becomes the measurement `cloudwatch_aws_ec2`, and the namespace
|
|||
|
|
`AWS/DynamoDB` becomes the measurement `cloudwatch_aws_dynamo_db`.
|
|||
|
|
|
|||
|
|
### Fields
|
|||
|
|
|
|||
|
|
The cloudwatch input plugin retrieves all statistics from all
|
|||
|
|
measurements in the specified namespaces. Each combination of metric
|
|||
|
|
and statistic becomes a field. Metric names are converted to
|
|||
|
|
snake_case. As an example, the metric `DiskWriteBytes` leads to the fields
|
|||
|
|
|
|||
|
|
* `disk_write_bytes_average`,
|
|||
|
|
* `disk_write_bytes_maximum`,
|
|||
|
|
* `disk_write_bytes_minimum`,
|
|||
|
|
* `disk_write_bytes_sample_count`, and
|
|||
|
|
* `disk_write_bytes_sum`.
|
|||
|
|
|
|||
|
|
To learn about the metrics for a particular Cloudwatch namespace, and
|
|||
|
|
to see units and example data, see the AWS documentation for the
|
|||
|
|
service in question, or explore using the AWS Console or AWS CLI.
|
|||
|
|
|
|||
|
|
### Tags
|
|||
|
|
|
|||
|
|
The cloudwatch input plugin tags the metrics it collects with the AWS
|
|||
|
|
region (key: `region`) and the cloudwatch dimensions of the metric in
|
|||
|
|
question. The dimensions names are converted to snake_keys, but the
|
|||
|
|
values are left as is. As an example, the `AWS/DynamoDB` namespace has
|
|||
|
|
a metric called `ThrottledRequest` with the dimensions `Operation` and
|
|||
|
|
`TableName`. An example set of tags for this metric could be:
|
|||
|
|
|
|||
|
|
* `region`: `us-east-1`
|
|||
|
|
* `operation`: `GetItem`
|
|||
|
|
* `table_name`: `foo`
|
|||
|
|
|
|||
|
|
## Example output
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
$ ~/src/go/bin/telegraf -config ~/tmp/kapacitor/telegraf.conf -input-filter cloudwatch -debug
|
|||
|
|
2016/03/29 10:47:15 Attempting connection to output: influxdb
|
|||
|
|
2016/03/29 10:47:16 Successfully connected to output: influxdb
|
|||
|
|
2016/03/29 10:47:16 Starting Telegraf (version 0.11.1-54-ge07c792)
|
|||
|
|
2016/03/29 10:47:16 Loaded outputs: influxdb
|
|||
|
|
2016/03/29 10:47:16 Loaded inputs: cloudwatch
|
|||
|
|
2016/03/29 10:47:16 Tags enabled: host=vljosa-yieldbot.local
|
|||
|
|
2016/03/29 10:47:16 Agent Config: Interval:5m0s, Debug:true, Quiet:false, Hostname:"vljosa-yieldbot.local", Flush Interval:11.228634593s
|
|||
|
|
2016/03/29 10:50:00 Found 26 cloudwatch metrics
|
|||
|
|
2016/03/29 10:50:00 Gathered metrics, (5m0s interval), from 1 inputs in 709.03259ms
|
|||
|
|
> cloudwatch_aws_dynamo_db,host=vljosa-yieldbot.local,table_name=prd-platform-datomic-config consumed_write_capacity_units_average=1,consumed_write_capacity_units_maximum=1,consumed_write_capacity_units_minimum=1,consumed_write_capacity_units_sample_count=65,consumed_write_capacity_units_sum=65 1459263300548895733
|
|||
|
|
> cloudwatch_aws_dynamo_db,host=vljosa-yieldbot.local,table_name=dev-platform-datomic-config consumed_read_capacity_units_average=1,consumed_read_capacity_units_maximum=1,consumed_read_capacity_units_minimum=1,consumed_read_capacity_units_sample_count=48,consumed_read_capacity_units_sum=48 1459263300642785107
|
|||
|
|
> cloudwatch_aws_dynamo_db,host=vljosa-yieldbot.local,operation=PutItem,table_name=dev-platform-datomic-config successful_request_latency_average=8.910156727272726,successful_request_latency_maximum=26.477,successful_request_latency_minimum=4.243,successful_request_latency_sample_count=44,successful_request_latency_sum=392.04689599999995 1459263300688946255
|
|||
|
|
> cloudwatch_aws_dynamo_db,host=vljosa-yieldbot.local,operation=GetItem,table_name=dev-platform-datomic-config successful_request_latency_average=6.982394130434781,successful_request_latency_maximum=38.125,successful_request_latency_minimum=2.156,successful_request_latency_sample_count=46,successful_request_latency_sum=321.19012999999995 1459263300727174463
|
|||
|
|
> cloudwatch_aws_dynamo_db,host=vljosa-yieldbot.local,table_name=dev-platform-datomic-config consumed_write_capacity_units_average=1,consumed_write_capacity_units_maximum=1,consumed_write_capacity_units_minimum=1,consumed_write_capacity_units_sample_count=48,consumed_write_capacity_units_sum=48 1459263300760742003
|
|||
|
|
> cloudwatch_aws_dynamo_db,host=vljosa-yieldbot.local,table_name=prd-platform-datomic-config consumed_read_capacity_units_average=1.8539288112827401,consumed_read_capacity_units_maximum=8,consumed_read_capacity_units_minimum=0.5,consumed_read_capacity_units_sample_count=1489,consumed_read_capacity_units_sum=2760.5 1459263300832984286
|
|||
|
|
> cloudwatch_aws_dynamo_db,host=vljosa-yieldbot.local,operation=GetItem,table_name=prd-platform-datomic-config successful_request_latency_average=5.014870193569996,successful_request_latency_maximum=56.839959,successful_request_latency_minimum=2.030115,successful_request_latency_sample_count=1493,successful_request_latency_sum=7487.201199000004 1459263300868485699
|
|||
|
|
> cloudwatch_aws_dynamo_db,host=vljosa-yieldbot.local,operation=PutItem,table_name=prd-platform-datomic-config successful_request_latency_average=9.664095158730158,successful_request_latency_maximum=25.262,successful_request_latency_minimum=3.533,successful_request_latency_sample_count=63,successful_request_latency_sum=608.837995 1459263300990375223
|
|||
|
|
2016/03/29 10:55:01 Gathered metrics, (5m0s interval), from 1 inputs in 1.048629086s
|
|||
|
|
2016/03/29 10:55:03 Wrote 8 metrics to output influxdb in 90.0269ms
|
|||
|
|
```
|