Mailing List Archive

Hi,

A bug report and a proposed patch to ldirectord were posted to
lvs-users ML a little while ago.
I think it's worth to include.

http://lists.graemef.net/pipermail/lvs-users/2012-February/024430.html

---------- Forwarded message ----------
From: Sohgo Takeuchi <sohgo@sohgo.dyndns.org>
Date: 2012/2/11
Subject: Re: [lvs-users] defunct checkcommand processes w/ ldirectord
To: lvs-users@linuxvirtualserver.org, david@davidcoulson.net



Hello, David

From: David Coulson <david@davidcoulson.net>
|
> I'm running ldirectord with a few external checkcommands, but end up
> with numerous defunct processes on the system.
>
> Seems like this issue:
>
> http://archive.linuxvirtualserver.org/html/lvs-users/2010-08/msg00040.html
>
> I realize I can set an alarm on my command and cause it to exit, but is
> there a fix for ldirectord to correctly clean up processes which are
> killed due to the internal timeout?

Please try the following patch.

diff --git a/ldirectord/ldirectord.in b/ldirectord/ldirectord.in
index 5d26114..c28eb40 100644
--- a/ldirectord/ldirectord.in
+++ b/ldirectord/ldirectord.in
@@ -2671,19 +2671,21 @@ sub run_child
       my $real = $$v{real};
       my $virtual_id = get_virtual_id_str($v);
       my $checkinterval = $$v{checkinterval} || $CHECKINTERVAL;
       $0 = "ldirectord $virtual_id";
       while (1) {
               foreach my $r (@$real) {
                       $0 = "ldirectord $virtual_id checking $$r{server}";
                       _check_real($v, $r);
+                       check_signal();
               }
               $0 = "ldirectord $virtual_id";
               sleep $checkinterval;
+               check_signal();
               ld_emailalert_resend();
       }
 }

 sub _check_real
 {
       my $v = shift;
       my $r = shift;

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Thanks,
--
Keisuke MORI
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