|
I debugged the problem with your patch. The patched ldirectord is not that
illuminating though,
[Thu May 6 13:03:15 2010|www.229|5621] system(/sbin/ipvsadm -e -t
216.246.59.229:5222 -r 172.20.1.104:5222 -m -w 5) failed to execute: No
child processes
[Thu May 6 13:03:15 2010|www.229|5621] Restored real server:
172.20.1.104:5222 (216.246.59.229:5222) (Weight set to 5)
[Thu May 6 13:03:15 2010|www.229|5621] emailalert: Restored real server:
172.20.1.104:5222 (216.246.59.229:5222) (Weight set to 5)
[Thu May 6 13:03:15 2010|www.229|5621] failed to send email message
[Thu May 6 13:03:15 2010|www.229|5621] system(/sbin/ipvsadm -e -t
216.246.59.229:8000 -r 172.20.1.104:8000 -m -w 5) failed to execute: No
child processes
[Thu May 6 13:03:15 2010|www.229|5621] Restored real server:
172.20.1.104:8000 (216.246.59.229:8000) (Weight set to 5)
[Thu May 6 13:03:15 2010|www.229|5621] emailalert: Restored real server:
172.20.1.104:8000 (216.246.59.229:8000) (Weight set to 5)
[Thu May 6 13:03:15 2010|www.229|5621] failed to send email message
Note that the "failed to send email message" errors are incorrect as well.
The messages are actually sent.
Sid
On Wed, May 5, 2010 at 1:27 AM, Simon Horman <horms@xxxxxxxxxxxx> wrote:
> On Tue, May 04, 2010 at 01:06:15PM -0700, Sid Stuart wrote:
> > We upgraded ldirectord last week to heartbeat-ldirectord.x86_64
> > 2.1.4-11.el5 from the Fedora EPEL repository. After the upgrade we
> started
> > seeing error messages like,
> >
> > [Tue May 4 11:09:36 2010|www.228|3608] system(/sbin/ipvsadm -e -t
> > 216.246.59.228:80 -r 172.20.1.121:80 -m -w 20) failed: No child
> processes
> > [Tue May 4 11:09:36 2010|www.228|3608] Restored real server:
> > 172.20.1.121:80 (216.246.59.228:80) (Weight set to 20)
> >
> > ipvsadm -l shows the operation worked, but the message is a concern. Does
> > anyone know of a fix?
>
> Hi,
>
> that is rather curious. Are you able to reproduce the problem?
> If so, could you try applying the following patch to ldirectord
> and see if it sheds any light on the problem?
>
> Index: agents/ldirectord/ldirectord.in
> ===================================================================
> --- agents.orig/ldirectord/ldirectord.in 2010-05-05
> 18:15:06.000000000 +1000
> +++ agents/ldirectord/ldirectord.in 2010-05-05 18:19:53.000000000
> +1000
> @@ -819,6 +819,11 @@ use Sys::Hostname;
> use POSIX qw(setsid :sys_wait_h);
> use Sys::Syslog qw(:DEFAULT setlogsock);
>
> +use IPC::Open3;
> +use Symbol qw(gensym);
> +
> +$| = 1;
> +
> BEGIN
> {
> # wrap exit() to preserve replacability
> @@ -4380,12 +4385,33 @@ sub system_wrapper
> {
> my (@args)=(@_);
>
> - my $status;
> + my $status, $pid, @log;
>
> &ld_log("Running system(@args)") if $DEBUG>2;
> - $status = system(@args);
> - if($status != 0) {
> - &ld_log("system(@args) failed: $!");
> +
> +
> + my $pid = open3(gensym, ">&STDERR", \*PH, @args);
> + while( <PH> ) {
> + push @log, $_;
> + }
> + waitpid($pid, 0);
> + $status = $?;
> +
> + if($status == -1) {
> + &ld_log("system(@args) failed to execute: $!");
> + } elsif ($status & 127) {
> + &ld_log("system(@args) died with signal " . ($status &
> 127) .
> + ", " . ($status & 128) ? "with" : "without" .
> + " coredump");
> + } elsif ($status != 0) {
> + &ld_log("system(@args) failed with exit-status " .
> + ($status >> 8));
> + }
> +
> + if ($status != 0) {
> + foreach (@log) {
> + &ld_log("stdio/stderr: $_");
> + }
> }
>
> return($status)
>
_______________________________________________
Please read the documentation before posting - it's available at:
http://www.linuxvirtualserver.org/
LinuxVirtualServer.org mailing list - lvs-users@xxxxxxxxxxxxxxxxxxxxxx
Send requests to lvs-users-request@xxxxxxxxxxxxxxxxxxxxxx
or go to http://lists.graemef.net/mailman/listinfo/lvs-users
|
