[Bug 1443821] [NEW] Update to 0.94.1

[James Page]

Public bug reported:

This bug fix release fixes a few critical issues with CRUSH.  The most 
important addresses a bug in feature bit enforcement that may prevent 
pre-hammer clients from communicating with the cluster during an upgrade.  
This only manifests in some cases (for example, when the 'rack' type is in 
use in the CRUSH map, and possibly other cases), but for safety we 
strongly recommend that all users use 0.94.1 instead of 0.94 when 
upgrading.

There is also a fix in the new straw2 buckets when OSD weights are 0.

We recommend that all v0.94 users upgrade.

Notable changes
---------------

* crush: fix divide-by-0 in straw2 (#11357 Sage Weil)
* crush: fix has_v4_buckets (#11364 Sage Weil)
* osd: fix negative degraded objects during backfilling (#7737 Guang Yang)

For more detailed information, see the complete changelog at

  http://docs.ceph.com/docs/master/_downloads/v0.94.1.txt

** Affects: ceph (Ubuntu)
     Importance: Critical
     Assignee: James Page (james-page)
         Status: In Progress

** Changed in: ceph (Ubuntu)
   Importance: Undecided => Critical

** Changed in: ceph (Ubuntu)
       Status: New => In Progress

** Changed in: ceph (Ubuntu)
     Assignee: (unassigned) => James Page (james-page)

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https://bugs.launchpad.net/bugs/1443821

Title:
  Update to 0.94.1

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