Bug 214600

Summary: Corruption in /etc/hosts causes aisexec to crash
Product: Red Hat Enterprise Linux 5 Reporter: Len DiMaggio <ldimaggi>
Component: openaisAssignee: Christine Caulfield <ccaulfie>
Status: CLOSED INSUFFICIENT_DATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: 5.0CC: cluster-maint, djansa, jlaska
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Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2008-07-07 15:00:17 UTC Type: ---
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Description Flags
aisexec core file none

Description Len DiMaggio 2006-11-08 16:34:23 UTC 
Description of problem:

The /etc/hosts syntax failure reported in this bz:
(https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=210050) resulted in the
Conga test failure reported in this bz:
(https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=213946)

Part of that Conga test failure involved aisexec (openais-0.80.1-11.el5)
crashing - that crashing in response to an invalid /etc/hosts file is the
subject of this bz. 

Version-Release number of selected component (if applicable):
openais-0.80.1-11.el5

How reproducible:
100%

Steps to Reproduce:
1. Recreate the syntax error in /etc/hosts described in:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=210050

2. Attempt to create a new cluster via Conga as described in:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=213946

Actual results:
aisexec crashes

Expected results:
Some error message - not a crash.

Additional info:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=210050
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=213946
Comment 1 Steven Dake 2006-11-08 17:03:26 UTC 
cman issue reassigning to Patrick for investigation.
Comment 2 Steven Dake 2006-11-08 17:05:18 UTC 
was there a core file in /usr/sbin?
Comment 3 Len DiMaggio 2006-11-08 17:32:15 UTC 
Created attachment 140672 [details]
aisexec core file
Comment 4 Len DiMaggio 2006-11-08 18:03:53 UTC 
There's a related problem - I'll open up a separate bz - when aisexec tried to
write a core file with SELinux=Enforcing, it failed. 

type=AVC msg=audit(1162589191.313:70): avc:  denied  { add_name } for  pid=2071
comm="aisexec" name="core.2071" scontext=system_u:system_r:ricci_modcluster_t:s0
tcontext=system_u:object_r:sbin_t:s0 tclass=dir
Comment 5 Christine Caulfield 2006-11-09 09:38:30 UTC 
I'm not sure how to read this.

If the host name resolves to a loopback address then cman will not start because
it won't be able to talk to the cluster! OK it shouldn't dump core but I can't
make it do that either.

I can't reproduce the crash with any interpretation of the /etc/hosts files I
can think of from those bug reports. Can you post an offending file and
cluster.conf please?

The core file doesn't say much other that it shut down :(
Comment 6 Len DiMaggio 2006-11-09 18:02:04 UTC 
I'll recreate the problem ASAP - I'm dealing with some networking issues and
cannot access any of the test systems right now - I'll update the bz when I have
a machine to show you the problem.
Comment 7 Len DiMaggio 2006-11-10 21:24:00 UTC 
I have the problem reproduced NOW - ping me for the machine name and password.
Comment 9 Kiersten (Kerri) Anderson 2007-04-23 17:48:26 UTC 
Fixing Product Name.  Cluster Suite components were integrated into Enterprise
Linux version 5.0.