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Bug 354421

Summary: fenced fails to execute the fence agent again if the first attempt fails and it takes more than 30 seconds to complete
Product: Red Hat Enterprise Linux 5 Reporter: Marco Ceci <mceci>
Component: cmanAssignee: Ryan McCabe <rmccabe>
Status: CLOSED ERRATA QA Contact: Cluster QE <mspqa-list>
Severity: medium Docs Contact:
Priority: medium    
Version: 5.0CC: cluster-maint, hlawatschek, jbrassow, jparsons, kanderso, rkenna
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: RHBA-2008-0347 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2008-05-21 15:58:08 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 219633    
Bug Blocks:    
Attachments:
Description Flags
patch that fix the problem none

Description Marco Ceci 2007-10-26 16:42:27 UTC 
Description of problem:
When the first fence action takes more than 30 seconds and then fails every
other fence attempt fails and the fence agent is not executed.

Es:

1193232648 node "srvxen1.netcatalyst.it" not a cman member, cn 1
1193232648 node "srvxen1.netcatalyst.it" has not been fenced
1193232648 fencing node srvxen1.netcatalyst.it
agent "fence_ilo" reports: failed to turn off

1193232700 node "srvxen1.netcatalyst.it" not a cman member, cn 1
1193232700 node "srvxen1.netcatalyst.it" has not been fenced
1193232700 fencing node srvxen1.netcatalyst.it
1193232705 node "srvxen1.netcatalyst.it" not a cman member, cn 1
1193232705 node "srvxen1.netcatalyst.it" has not been fenced
1193232705 fencing node srvxen1.netcatalyst.it
1193232710 node "srvxen1.netcatalyst.it" not a cman member, cn 1
1193232710 node "srvxen1.netcatalyst.it" has not been fenced
1193232710 fencing node srvxen1.netcatalyst.it
1193232715 node "srvxen1.netcatalyst.it" not a cman member, cn 1
1193232715 node "srvxen1.netcatalyst.it" has not been fenced

I have instrumented fenced and find out that the problem is caused by ccs_get
returning a timeout error in the count_methods. This problem has been fixed for
RHEL4 in BZ#219633 but the patch has not been ported to RHEL5. I have ported the
patch to RHEL5 and checked that the patch resolve the problem.

Version-Release number of selected component (if applicable):
cman-2.0.73

How reproducible:
every time

Steps to Reproduce:
1.configure a fence agent that takes more than 30 seconds to complete and return
with an error
  
Actual results:
The fence agent is executed only the first time

Expected results:
The fence agent should execute the fence agent until the fence is successfull or
the node rejoin the cluster

Additional info:

Patch that fix the problem on RHEL5 (cman-2.0.70-1.el5) attached.

See Bug #219633 for further information
Comment 1 Marco Ceci 2007-10-26 16:42:27 UTC 
Created attachment 239311 [details]
patch that fix the problem
Comment 5 errata-xmlrpc 2008-05-21 15:58:08 UTC 
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2008-0347.html