** Description changed:

+ [Impact]
+ In RGW deployments with large deltas for deleted objects, the garbage 
collector will easily fall behind on cleanup of deleted objects eventually 
resulting in OSD devices hitting storage capacity.
+ 
+ [Test Case]
+ Deploy Ceph + RADOS Gateway
+ Create millions of objects in an iterative loop
+ Start deleting objects in parallel at a high rate
+ Storage capacity will gradually reduce over time as RGW garbage collection 
falls behind.
+ 
+ 
+ [Tricky to reproduce without significant scale of objects + deletion but 
proposed fix has been tested in the field.]
+ 
+ [Regression Potential]
+ Low - fix has been accepted into Ceph Luminous upstream and will form part of 
the next point release.
+ 
+ [Original Bug Report]
  SRU for backport of the GC AIO feature to Ceph Luminous.
  
  https://github.com/ceph/ceph/pull/28784

** Description changed:

  [Impact]
  In RGW deployments with large deltas for deleted objects, the garbage 
collector will easily fall behind on cleanup of deleted objects eventually 
resulting in OSD devices hitting storage capacity.
  
  [Test Case]
  Deploy Ceph + RADOS Gateway
  Create millions of objects in an iterative loop
  Start deleting objects in parallel at a high rate
  Storage capacity will gradually reduce over time as RGW garbage collection 
falls behind.
  
- 
- [Tricky to reproduce without significant scale of objects + deletion but 
proposed fix has been tested in the field.]
+ [Tricky to reproduce without significant scale of objects + deletion but
+ proposed fix has been tested in the field.]
  
  [Regression Potential]
- Low - fix has been accepted into Ceph Luminous upstream and will form part of 
the next point release.
+ Low - fix has been accepted into Ceph Luminous upstream and will form part of 
the next point release.  Change to use AIO for GC is also in later Ceph 
releases.
  
  [Original Bug Report]
  SRU for backport of the GC AIO feature to Ceph Luminous.
  
  https://github.com/ceph/ceph/pull/28784

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https://bugs.launchpad.net/bugs/1838858

Title:
  backport GC AIO to Luminous

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