[Bug 1911900] [NEW] Active scrub blocks upmap balancer

[Ponnuvel Palaniyappan]

Public bug reported:

When scrubs are in progress, balancer stop due to the bug [0]. And
shows:

<timestamp> calc_pg_upmaps abort due to max <= 0

We need to backport upstream bug [0] to Octopus. It's been fixed in
upstream master branch.

Upstream backport is in progress [1]. Once that's merged, this needs to be
SRU'ed to Octopus.

[0] https://tracker.ceph.com/issues/48309
[1] https://github.com/ceph/ceph/pull/38337

** Affects: cloud-archive
     Importance: Undecided
     Assignee: Ponnuvel Palaniyappan (pponnuvel)
         Status: New

** Description changed:

  When scrubs are in progress, balancer stop due to the bug [0]. And
  shows:
  
  <timestamp> calc_pg_upmaps abort due to max <= 0
  
- We need to backport upstream bug [0] to Octopus. It's been fixed in upstream
- master branch.
+ We need to backport upstream bug [0] to Octopus. It's been fixed in
+ upstream master branch.
  
  Upstream backport is in progress [1]. Once that's merged, this needs to be
  SRU'ed to Octopus.
  
- 
  [0] https://tracker.ceph.com/issues/48309
  [1] https://github.com/ceph/ceph/pull/38337

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https://bugs.launchpad.net/bugs/1911900

Title:
  Active scrub blocks upmap balancer

Status in Ubuntu Cloud Archive:
  New

Bug description:
  When scrubs are in progress, balancer stop due to the bug [0]. And
  shows:

  <timestamp> calc_pg_upmaps abort due to max <= 0

  We need to backport upstream bug [0] to Octopus. It's been fixed in
  upstream master branch.

  Upstream backport is in progress [1]. Once that's merged, this needs to be
  SRU'ed to Octopus.

  [0] https://tracker.ceph.com/issues/48309
  [1] https://github.com/ceph/ceph/pull/38337

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