Hello,
After upgrading to pacemaker 1.1.6, cluster-glue 1.0.8 on Debian, our
working apcmastersnmp resources stopped to work:
Feb 29 14:22:03 atlas0 stonith: [35438]: ERROR: apcmastersnmp device not
accessible.
Feb 29 14:22:03 atlas0 stonith-ng: [32972]: notice: log_operation:
Operation 'monitor' [35404] for device 'stonith-atlas6' returned: -2
Feb 29 14:22:03 atlas0 stonith-ng: [32972]: ERROR: log_operation:
stonith-atlas6: Performing: stonith -t apcmastersnmp -S 161
Feb 29 14:22:03 atlas0 stonith-ng: [32972]: ERROR: log_operation:
stonith-atlas6: Invalid config info for apcmastersnmp device
Please note the strange "161" argument of stonith.
After checking the source code and stracing stonithd, as far as I see, the
following happens:
- stonithd calls fence_legacy, which steals the "port=161" parameter from
apcmastersnmp. This produces the error message
"Invalid config info for apcmastersnmp device"
- At stealing "port=161", fence_legacy sets the port value to the node
name and passes to stonith, even in status mode. Therefore we
get "stonith -t apcmastersnmp -S 161"
- However stonith cannot catch the invalid node parameter:
if (!(argcount == 1 || (argcount < 1
&& (status||listhosts||listtypes||listparanames||metadata))))
{
++errors;
}
and even in status mode wants to run the reset request too:
if (status) {
< no exit >
}
if (listhosts) {
< no exit >
}
if (optind < argc) {
...
rc = stonith_req_reset(s, reset_type, nodename);
}
Fortunately the port value does not match nodename, so it won't kill any
node, but the agent fails.
Am I on the right track? Would the following patch fix the issue? I'm
asking it, because I don't know why "port=" is handled separatedly and
what are the implications of deleting $opt_n below.
--- fence_legacy.orig 2012-02-29 23:03:36.594945717 +0100
+++ fence_legacy 2012-03-01 14:41:46.454859212 +0100
@@ -105,6 +105,7 @@
elsif ($name eq "port" )
{
$opt_n = $val;
+ $ENV{$name} = $val;
}
elsif ($name eq "stonith" )
{
@@ -176,8 +177,8 @@
}
elsif ( $opt_o eq "monitor" || $opt_o eq "stat" || $opt_o eq "status" )
{
- print "Performing: $opt_s -t $opt_t -S $opt_n\n" unless defined $opt_q;
- exec "$opt_s -t $opt_t $extra_args -S $opt_n" or die "failed to exec
\"$opt_s\"\n";
+ print "Performing: $opt_s -t $opt_t -S\n" unless defined $opt_q;
+ exec "$opt_s -t $opt_t $extra_args -S" or die "failed to exec
\"$opt_s\"\n";
}
else
{
Best regards,
Jozsef
--
E-mail : kadlecsik.joz...@wigner.mta.hu
PGP key: http://www.kfki.hu/~kadlec/pgp_public_key.txt
Address: Wigner Research Centre for Physics, Hungarian Academy of Sciences
H-1525 Budapest 114, POB. 49, Hungary
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