110 lines
5.0 KiB
Markdown
110 lines
5.0 KiB
Markdown
# cgroup Prometheus exporter
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[](https://circleci.com/gh/treydock/cgroup_exporter)
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[](https://github.com/treydock/cgroup_exporter/releases/latest)
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[](https://codecov.io/gh/treydock/cgroup_exporter)
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# cgroup Prometheus exporter
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The `cgroup_exporter` produces metrics from cgroups.
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This exporter by default listens on port `9306` and all metrics are exposed via the `/metrics` endpoint.
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# Usage
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The `--config.paths` flag is required and must point to paths of cgroups to monitor. If there is `/sys/fs/cgroup/cpuacct/user.slice` then the value for `--config.paths` would be `/user.slice`.
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## Docker
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Example of running the Docker container
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```
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docker run -d -p 9306:9306 -v "/:/host:ro,rslave" treydock/cgroup_exporter --path.cgroup.root=/host/sys/fs/cgroup
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```
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## Install
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Download the [latest release](https://github.com/treydock/cgroup_exporter/releases)
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## Build from source
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To produce the `cgroup_exporter` binaries:
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```
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make build
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```
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Or
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```
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go get github.com/treydock/cgroup_exporter
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```
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## Process metrics
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If you wish to collect process information for a cgroup pass the `--collect.proc` flag. If this exporter is not running as root then it's required to set capabilities to ensure the user running this exporter can read everything under procfs:
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```
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setcap cap_sys_ptrace=eip /usr/bin/cgroup_exporter
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```
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## Metrics
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Example of metrics exposed by this exporter when looking at `/user.slice` paths:
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```
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cgroup_cpu_system_seconds{cgroup="/user.slice/user-20821.slice"} 1.96
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cgroup_cpu_total_seconds{cgroup="/user.slice/user-20821.slice"} 3.817500568
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cgroup_cpu_user_seconds{cgroup="/user.slice/user-20821.slice"} 1.61
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cgroup_cpus{cgroup="/user.slice/user-20821.slice"} 0
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cgroup_cpu_info{cgroup="/user.slice/user-20821.slice",cpus=""} 1
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cgroup_info{cgroup="/user.slice/user-20821.slice",uid="20821",username="tdockendorf",jobid=""} 1
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cgroup_memory_cache_bytes{cgroup="/user.slice/user-20821.slice"} 2.322432e+06
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cgroup_memory_fail_count{cgroup="/user.slice/user-20821.slice"} 0
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cgroup_memory_rss_bytes{cgroup="/user.slice/user-20821.slice"} 5.378048e+06
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cgroup_memory_total_bytes{cgroup="/user.slice/user-20821.slice"} 6.8719476736e+10
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cgroup_memory_used_bytes{cgroup="/user.slice/user-20821.slice"} 6.90176e+06
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cgroup_memsw_fail_count{cgroup="/user.slice/user-20821.slice"} 0
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cgroup_memsw_total_bytes{cgroup="/user.slice/user-20821.slice"} 9.223371968135295e+18
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cgroup_memsw_used_bytes{cgroup="/user.slice/user-20821.slice"} 0
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```
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Example of metrics exposed by this exporter when looking at `/slurm` paths:
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```
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cgroup_cpu_system_seconds{cgroup="/slurm/uid_20821/job_12"} 0
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cgroup_cpu_total_seconds{cgroup="/slurm/uid_20821/job_12"} 0.007840451
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cgroup_cpu_user_seconds{cgroup="/slurm/uid_20821/job_12"} 0
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cgroup_cpus{cgroup="/slurm/uid_20821/job_12"} 2
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cgroup_cpu_info{cgroup="/slurm/uid_20821/job_12",cpus="0,1"} 1
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cgroup_info{cgroup="/slurm/uid_20821/job_12",jobid="12",uid="20821",username="tdockendorf"} 1
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cgroup_memory_cache_bytes{cgroup="/slurm/uid_20821/job_12"} 4.096e+03
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cgroup_memory_fail_count{cgroup="/slurm/uid_20821/job_12"} 0
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cgroup_memory_rss_bytes{cgroup="/slurm/uid_20821/job_12"} 3.11296e+05
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cgroup_memory_total_bytes{cgroup="/slurm/uid_20821/job_12"} 2.147483648e+09
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cgroup_memory_used_bytes{cgroup="/slurm/uid_20821/job_12"} 315392
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cgroup_memsw_fail_count{cgroup="/slurm/uid_20821/job_12"} 0
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cgroup_memsw_total_bytes{cgroup="/slurm/uid_20821/job_12"} 2.147483648e+09
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cgroup_memsw_used_bytes{cgroup="/slurm/uid_20821/job_12"} 315392
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```
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Example of metrics exposed by this exporter when looking at `/torque` paths:
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```
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cgroup_cpu_system_seconds{cgroup="/torque/1182958.batch.example.com"} 26.35
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cgroup_cpu_total_seconds{cgroup="/torque/1182958.batch.example.com"} 939.568245515
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cgroup_cpu_user_seconds{cgroup="/torque/1182958.batch.example.com"} 915.61
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cgroup_cpus{cgroup="/torque/1182958.batch.example.com"} 8
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cgroup_cpu_info{cgroup="/torque/1182958.batch.example.com",cpus="0,1,2,3,4,5,6,7,8"} 1
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cgroup_info{cgroup="/torque/1182958.batch.example.com",jobid="1182958",uid="",username=""} 1
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cgroup_memory_cache_bytes{cgroup="/torque/1182958.batch.example.com"} 1.09678592e+08
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cgroup_memory_fail_count{cgroup="/torque/1182958.batch.example.com"} 0
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cgroup_memory_rss_bytes{cgroup="/torque/1182958.batch.example.com"} 8.2444320768e+10
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cgroup_memory_total_bytes{cgroup="/torque/1182958.batch.example.com"} 1.96755132416e+11
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cgroup_memory_used_bytes{cgroup="/torque/1182958.batch.example.com"} 5.3434466304e+10
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cgroup_memsw_fail_count{cgroup="/torque/1182958.batch.example.com"} 0
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cgroup_memsw_total_bytes{cgroup="/torque/1182958.batch.example.com"} 1.96755132416e+11
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cgroup_memsw_used_bytes{cgroup="/torque/1182958.batch.example.com"} 5.3434466304e+10
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```
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