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https://github.com/rochaporto/collectd-ceph

collectd plugins and dashboards for ceph
https://github.com/rochaporto/collectd-ceph

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collectd plugins and dashboards for ceph

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README 

        
collectd-ceph

==================



## Overview



A set of collectd plugins monitoring and publishing metrics for Ceph components.



## Screenshots



Sample Grafana dashboard displaying common metrics from the plugins.



![image](https://raw.github.com/rochaporto/collectd-ceph/master/public/ceph-overview.png)



![image](https://raw.github.com/rochaporto/collectd-ceph/master/public/ceph-dash2.png)



[Check here](grafana/ceph-overview.json) for the dashboard definition.



## Plugins and Metrics



There are several plugins, usually mapping to the ceph command line tools.



Find below a list of the available plugins and the metrics they publish.



* ceph_monitor_plugin

  * ceph-<cluster>.mon.gauge.number (total number of monitors)

  * ceph-<cluster>.mon.gauge.quorum (number of monitors in quorum)

* ceph_osd_plugin

  * ceph-<cluster>.osd.gauge.up (number of osds 'up')

  * ceph-<cluster>.osd.gauge.down (number of osds 'down')

  * ceph-<cluster>.osd.gauge.in (number of osds 'in')

  * ceph-<cluster>.osd.gauge.out (number of osds 'out')

* ceph_pool_plugin

  * ceph-<cluster>.pool-<name>.gauge.read_bytes_sec (per pool read bytes/sec)

  * ceph-<cluster>.pool-<name>.gauge.write_bytes_sec (per pool write bytes/sec)

  * ceph-<cluster>.pool-<name>.gauge.op_per_sec (per pool iops)

  * ceph-<cluster>.pool-<name>.gauge.bytes_used (per pool bytes used)

  * ceph-<cluster>.pool-<name>.gauge.kb_used (per pool KBytes used)

  * ceph-<cluster>.pool-<name>.gauge.objects (per pool number of objects)

  * ceph-<cluster>.cluster.gauge.total_avail (cluster space available)

  * ceph-<cluster>.cluster.gauge.total_space (cluster total raw space)

  * ceph-<cluster>.cluster.gauge.total_used (cluster raw space used)

* ceph_pg_plugin

  * ceph-<cluster>.pg.gauge.<state> (number of pgs in <state>)

  * ceph-<cluster>.osd-<id>.gauge.fs_commit_latency (fs commit latency for osd)

  * ceph-<cluster>.osd-<id>.gauge.apply_commit_latency (apply commit latency for osd)

  * ceph-<cluster>.osd-<id>.gauge.kb_used (kb used by osd)

  * ceph-<cluster>.osd-<id>.gauge.kb (total space of osd)

* ceph_latency_plugin

  * ceph-<cluster>.cluster.gauge.avg_latency (avg cluster latency)

  * ceph-<cluster>.cluster.gauge.max_latency (max cluster latency)

  * ceph-<cluster>.cluster.gauge.min_latency (min cluster latency)

  * ceph-<cluster>.cluster.gauge.stddev_latency (stddev of cluster latency)



## Requirements



It assumes an existing installation of [collectd](http://collectd.org/documentation.shtml) - check docs for details.



If you want to publish to [graphite](http://graphite.readthedocs.org/), configure the [write_graphite](https://collectd.org/wiki/index.php/Plugin:Write_Graphite) collectd plugin.



And you might want the awesome [grafana](http://grafana.org) too, which provides awesome displays.



## Setup and Configuration



The example configuration(s) below assume the plugins to be located under `/usr/lib/collectd/plugins/ceph`.



If you're under ubuntu, consider installing from [this ppa](https://launchpad.net/~rocha-porto/+archive/collectd).



Each plugin should have its own config file, under `/etc/collectd/conf.d/.conf`, which

should follow something similar to:

```

# cat /etc/collectd/conf.d/ceph_pool.conf



    Globals true



    ModulePath "/usr/lib/collectd/plugins/ceph"



    Import "ceph_pool_plugin"



    

        Verbose "True"

        Cluster "ceph"

        Interval "60"

        TestPool "test"

    



```



### Puppet



If you use puppet for configuration, then try this excelent [collectd](https://github.com/pdxcat/puppet-module-collectd) module.



It has plenty of docs on how to use it, but for our specific plugins:

```

  collectd::plugin::python { 'ceph_pool':

    modulepath => '/usr/lib/collectd/plugins/ceph',

    module     => 'ceph_pool_plugin',

    config     => {

      'Verbose'  => 'true',

      'Cluster'  => 'ceph',

      'Interval' => 60,

      'TestPool' => 'test',

    },

  }

```



### Docker



Check [this repo](https://github.com/bobrik/ceph-collectd-graphite) for a nice docker setup to run collectd-ceph (thanks to Ian Babrou).



## Limitations



The debian packaging files are provided, but not yet available in the official repos.



## Development



All contributions more than welcome, just send pull requests.



## License



GPLv2 (check LICENSE).



## Contributors



Ricardo Rocha 



## Support



Please log tickets and issues at the [github home](https://github.com/rochaporto/collectd-ceph/issues).



## Additional Notes



Some [handy instructions](docs/ubuntu.md) on how to build for ubuntu.