Mailing List Archive

[lvs-users] defunct checkcommand processes w/ ldirectord
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?

David

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Re: [lvs-users] defunct checkcommand processes w/ ldirectord [ In reply to ]
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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Re: [lvs-users] defunct checkcommand processes w/ ldirectord [ In reply to ]
On 2/11/12 3:34 AM, Sohgo Takeuchi wrote:
>
> Please try the following patch.
Great! That worked. Thanks!

David

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