Bug 1122127

Summary: [RFE] Monitor free volume space from ceilometer
Product: Red Hat OpenStack Reporter: Eduard Barrera <ebarrera>
Component: openstack-ceilometerAssignee: Eoghan Glynn <eglynn>
Status: CLOSED WONTFIX QA Contact: Yurii Prokulevych <yprokule>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 5.0 (RHEL 7)CC: augol, jruzicka, pbrady, yeylon, yprokule
Target Milestone: ---Keywords: FutureFeature, ZStream
Target Release: 5.0 (RHEL 7)   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Enhancement
Doc Text:
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Clone Of: Environment:
Last Closed: 2015-12-16 15:13:40 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Eduard Barrera 2014-07-22 15:24:40 UTC 
Description of problem:

There is no way to monitor the free volume space we have with ceilometer

Customer asked a way to monitor a way to monitor free space in order to not exhaust all the free space they have.

In case  01122867  customer is asking a way to monitor RH Storage free space.

It could be useful also monitor CEPH and the cinder-volumes volume group.
Comment 2 Eoghan Glynn 2014-10-21 11:01:07 UTC 
Presumably this RFE refers to the amount of remaining block storage capacity available for allocation in new or resized volumes?

If so, it relates to the follow session proposed for the Kilo design summit, as a result of a requirement raised by the Win the Enterprise working group:

  Capacity Headroom
  * The goal is to surface visibility to the remaining block storage
    capacity available for allocation in new or resized volumes
  * Requires that the update_sevice_capabilities RPC call made by all
    drivers contains an accurate determination of the total_capacity
    and allocated_capacity
  * The cinder scheduler could emit a periodic notification containing
    the total, to be consumed by ceilometer
  * (feature requested by the Win The Enterprise monitoring WG on the
     basis of operator feedback)

This will be discussed by the cinder team at the design summit scheduling discussion at their team meeting on Oct 22nd, 2014 16:00 UTC.

If it's accepted for the cinder track in Paris, then there's a chance this will be landed for Kilo (i.e. RHOS7 - thus untarget'ing from RHOS5). However note that most of the change will be required on the cinder side.

WRT "It could be useful also monitor CEPH", this sounds like a separate issue.