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Description of problem:

When receive_start fails to add a node to its group (e.g. because of both start_count not being 0, for instance), it is important to make the uneducated eye understand that the whole group is failed and has somehow to be recreated.

This is reproducible for at least the fence domain and the DLM lockspaces.


Version-Release number of selected component (if applicable): 
cman-3.0.12.1-59.el6_5.2.x86_64


How reproducible:
any time a partitioned group is trying to merge 


Steps to Reproduce:
1. have a slow'ish network
2. set a very log FENCED_MEMBER_DELAY (0 or 1 ?)
3. start all node simultaneously (cman and clvmd)

Actual results:
* The current 'error' is simply :

fenced[XXXX]: receive_start 2:2 add node with started_count 1

However, it is not being understood as an error by the uneducated eye.

Expected results:
- Add an additional line, such as "receive_start error in %s, membership is disallowed.", with %s being an identifier of the problematic mountgroup or DLM lockspace.

Additional info:
* This has to be set in 3 locations :

 - Fence domain : fence/fenced/cpg.c
 - DLM lockspaces : group/dlm_controld/cpg.c
 - GFS groups : group/gfs_controld/cpg-new.c

Created attachment 901810 [details]
Patch

That seems pretty straightforward. For reference here's a patch that's been vaguely (I had to force the condition) tested.

Oupsie, I had forgotten to send it.

Thanks Chrissie!

Could not reproduce on my network. Verified SanityOnly in cman-3.0.12.1-73.el6

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2015-1363.html