Re: cluster nodes offline - help!

Oh, this is really simple. The prerequisite tests in check_prerequisites 
function correctly point to /bin/fping (where Mandriva Linux puts it). 
However, when the fping command is set on line 192 it has the path as 
/usr/sbin. A compilation bug? If I change it to /bin/fping it all then fires 
up correctly.

Cheers
Neill.


>From: "Neill Mitchell" <[email protected]>
>To: [email protected], [email protected]
>Subject: Re: [dvd::rip] cluster nodes offline - help!
>Date: Wed, 02 May 2007 09:00:24 +0000
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>Hi there.
>
>I have modified the Master.pm code to log the command and response to the 
>fping. Command is $command on line 198 and Buffer is $buffer that gets 
>populated by line 201 (version 0.98.6).
>This is what gets logged:
>Wed May  2 09:50:37 2007 [1] Command '/usr/sbin/fping node2 node3 node5 '
>Wed May  2 09:50:37 2007 [1] Buffer 'EXEC_FLOW_JOB_PID=985
>
>'
>Wed May  2 09:50:37 2007 [1] Warning: Node 'node2' possibly offline
>Wed May  2 09:50:37 2007 [1] Warning: Node 'node3' possibly offline
>Wed May  2 09:50:37 2007 [1] Warning: Node 'node5' possibly offline
>Wed May  2 09:50:42 2007 [1] Command '/usr/sbin/fping node2 node3 node5 '
>Wed May  2 09:50:42 2007 [1] Buffer 'EXEC_FLOW_JOB_PID=986
>
>'
>Wed May  2 09:50:42 2007 [1] Warning: Node 'node2' is unreachable
>Wed May  2 09:50:42 2007 [1] Warning: Node 'node3' is unreachable
>Wed May  2 09:50:42 2007 [1] Warning: Node 'node5' is unreachable
>
>It looks like the return from fping is not getting captured correctly. The 
>string compare then obviously fails and so the nodes are flagged as 
>offline.
>For now I have modified the code to populate the buffer with a hard wired 
>alive response from fping. It's a cheat, but cluster projects then run fine 
>as long as the nodes are all up.
>
>Cheers
>Neill.
>
>
>>From: Jörn Reder <[email protected]>
>>To: [email protected]
>>Subject: Re: [dvd::rip] cluster nodes offline - help!
>>Date: Mon, 30 Apr 2007 23:18:43 +0200
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>>
>>"Neill Mitchell" wrote:
>>
>> > I have upgraded the master machine to 0.98.6. I only have one master
>> > machine. All transcode dependencies are present on the other 3 nodes.
>> > Running fping manually from the console returns that all nodes are 
>>alive.
>> > The dvdrip cluster console is still showing them all as offline though. 
>>Only
>> > the master machine is showing as idle. All nodes pass the SSH 
>>connection,
>> > Data Directory, Write access and Program version tests.
>> > I have tried everything I can think of now. It's getting very 
>>depressing.
>> > I have attached the output from dvdrip-master. You can see me doing the
>> > tests.
>>
>>Please apply the attached patch and start dvdrip-master with loglevel 4
>>
>>   dvdrip-master 4
>>
>>and post the log output here.
>>
>>Regards,
>>
>>Jörn
>>
>>--
>>$a=$a[8][67][9][0][42][214][82][78][0][50][69][68][69][82][0][73][78][0]
>>[65][0][20][16][0][68][73][77][69][78][83][73][79][78][65][76][0][65][82
>>][82][65][89]=sub{sub _($){print$_[@z]}($z,$i)=@_;(++$i)while!$z->[$i];$
>>s+=$i;_ chr($i+32);$s!=2292&&&$a($z->[$i],$c>>$e)};&$a(\@a,$d<<$f);_"\n"
>
>
>>Index: lib/Video/DVDRip/Cluster/Master.pm
>>===================================================================
>>RCS file: /home/cvsroot/dvdrip/lib/Video/DVDRip/Cluster/Master.pm,v
>>retrieving revision 1.45.2.1
>>diff -u -r1.45.2.1 Master.pm
>>--- lib/Video/DVDRip/Cluster/Master.pm	13 Apr 2007 11:17:44 -0000	1.45.2.1
>>+++ lib/Video/DVDRip/Cluster/Master.pm	30 Apr 2007 21:16:42 -0000
>>@@ -138,7 +138,7 @@
>>
>>  sub node_check_unnecessary {
>>      my $self = shift;
>>-
>>+    return;
>>      return if $self->rpc_server->get_clients_connected;
>>      return if @{ $self->job_get_unfinished_projects };
>>      return 1;
>>@@ -198,6 +198,7 @@
>>          command      => $command,
>>          no_log       => 1,
>>          cb_line_read => sub {
>>+            $self->log(4, "fping: $_[0]");
>>              $buffer .= $_[0] . "\n";
>>              1;
>>          },
>
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