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Diffstat (limited to 'collectors/cgroups.plugin/README.md')
| -rw-r--r-- | collectors/cgroups.plugin/README.md | 49 |
1 files changed, 23 insertions, 26 deletions
diff --git a/collectors/cgroups.plugin/README.md b/collectors/cgroups.plugin/README.md index 45d2da3be9..f34055b394 100644 --- a/collectors/cgroups.plugin/README.md +++ b/collectors/cgroups.plugin/README.md @@ -68,7 +68,6 @@ Basic unified cgroups metrics are supported. To use them instead of v1 cgroups a Unified cgroups use same name pattern matching as v1 cgroups. `cgroup_enable_systemd_services_detailed_memory` is currently unsupported when using unified cgroups. - ### enabled cgroups To check if the cgroup is enabled, Netdata uses this setting: @@ -124,20 +123,20 @@ Netdata monitors **systemd services**. Example: Support per distribution: -system|systemd services<br/>charts shown|`tree`<br/>`/sys/fs/cgroup`|comments -:-------:|:-------:|:-------:|:------------ -Arch Linux|YES| | -Gentoo|NO| |can be enabled, see below -Ubuntu 16.04 LTS|YES| | -Ubuntu 16.10|YES|[here](http://pastebin.com/PiWbQEXy)| -Fedora 25|YES|[here](http://pastebin.com/ax0373wF)| -Debian 8|NO| |can be enabled, see below -AMI|NO|[here](http://pastebin.com/FrxmptjL)|not a systemd system -Centos 7.3.1611|NO|[here](http://pastebin.com/SpzgezAg)|can be enabled, see below +|system|systemd services<br/>charts shown|`tree`<br/>`/sys/fs/cgroup`|comments| +|:----:|:-------------------------------:|:-------------------------:|:-------| +|Arch Linux|YES||| +|Gentoo|NO||can be enabled, see below| +|Ubuntu 16.04 LTS|YES||| +|Ubuntu 16.10|YES|[here](http://pastebin.com/PiWbQEXy)|| +|Fedora 25|YES|[here](http://pastebin.com/ax0373wF)|| +|Debian 8|NO||can be enabled, see below| +|AMI|NO|[here](http://pastebin.com/FrxmptjL)|not a systemd system| +|Centos 7.3.1611|NO|[here](http://pastebin.com/SpzgezAg)|can be enabled, see below| -#### how to enable cgroup accounting on systemd systems that is by default disabled +### how to enable cgroup accounting on systemd systems that is by default disabled -You can verify there is no accounting enabled, by running `systemd-cgtop`. The program will show only resources for cgroup ` / `, but all services will show nothing. +You can verify there is no accounting enabled, by running `systemd-cgtop`. The program will show only resources for cgroup `/`, but all services will show nothing. To enable cgroup accounting, execute this: @@ -192,7 +191,7 @@ Which systemd services are monitored by Netdata is determined by the following p cgroups to match as systemd services = !/system.slice/*/*.service /system.slice/*.service ``` ---- +- - - ## Monitoring ephemeral containers @@ -200,10 +199,9 @@ Netdata monitors containers automatically when it is installed at the host, or w Netdata prior to v1.6 had 2 issues when such containers were monitored: -1. network interface alarms where triggering when containers were stopped - -2. charts were never cleaned up, so after some time dozens of containers were showing up on the dashboard, and they were occupying memory. +1. network interface alarms where triggering when containers were stopped +2. charts were never cleaned up, so after some time dozens of containers were showing up on the dashboard, and they were occupying memory. ### the current Netdata @@ -211,13 +209,12 @@ network interfaces and cgroups (containers) are now self-cleaned. So, when a network interface or container stops, Netdata might log a few errors in error.log complaining about files it cannot find, but immediately: -1. it will detect this is a removed container or network interface -2. it will freeze/pause all alarms for them -3. it will mark their charts as obsolete -4. obsolete charts are not be offered on new dashboard sessions (so hit F5 and the charts are gone) -5. existing dashboard sessions will continue to see them, but of course they will not refresh -6. obsolete charts will be removed from memory, 1 hour after the last user viewed them (configurable with `[global].cleanup obsolete charts after seconds = 3600` (at `netdata.conf`). -7. when obsolete charts are removed from memory they are also deleted from disk (configurable with `[global].delete obsolete charts files = yes`) - +1. it will detect this is a removed container or network interface +2. it will freeze/pause all alarms for them +3. it will mark their charts as obsolete +4. obsolete charts are not be offered on new dashboard sessions (so hit F5 and the charts are gone) +5. existing dashboard sessions will continue to see them, but of course they will not refresh +6. obsolete charts will be removed from memory, 1 hour after the last user viewed them (configurable with `[global].cleanup obsolete charts after seconds = 3600` (at `netdata.conf`). +7. when obsolete charts are removed from memory they are also deleted from disk (configurable with `[global].delete obsolete charts files = yes`) -[]() +[](<>) |