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Added spec monitor_ceph_pool_utilization.adoc #98

Closed shtripat closed 7 years ago

shtripat commented 7 years ago

Signed-off-by: Shubhendu shtripat@redhat.com

shtripat commented 7 years ago

@anmolbabu can you have a look at the https://github.com/rochaporto/collectd-ceph/tree/master/plugins This plugin as well uses json output and pushes the details to time series DB. I understand that in case of json we would have to calculate the percentage usage value but with suggestion from ceph team on https://bugzilla.redhat.com/show_bug.cgi?id=1360230, isnt it doable.

shtripat commented 7 years ago

Probably, this needs to be either of the below:

The pool object in tendrl ceph integration definitions, will provide a way to indicate a way to read the >utilization data from some directory in etcd if monitoring is enabled and the tendrl-api will look into this path >to provide the utilization data or The performance-monitoring application will periodically update the utilization data to a location in etcd >and also the performance monitoring application will expose apis to access this data and the tendrl-api will >proxy to it.

I personally think that approach 2 although is a 2-step process, is safer and better than approach 1 of >involving changes to definitions on the fly once the monitoring is enabled.

Will change the spec as suggested

shtripat commented 7 years ago

@anmolbabu https://github.com/Tendrl/specifications/issues/44 talks about this tag based job execution and its linking with role based job execution on node agents.