Hello,
I have a small issue with backend checking with l4txnat. I have a
cluster with 2 servers and 3 farms (http and https) with l4txnat that
monitors the backends with farmguardian.
This is working ok, however I have defunct check_http processes that
start accumulating. This can be extremely high after a while like more
then 4000-5000 defunct processes. It seems to increase when there is a
backend that is down.
I use the 2 following nagios/farmguardian checks every 5 seconds (1 for
http, 1 for https):
check_http -l HOST -p 80 -w 5 -c 10 -t 15
check_http -l HOST -S -w 5 -c 10 -t 15
ps shows:
9924 30470 0 11:53 ? 00:00:00 [check_http] <defunct>
14444 30470 0 12:26 ? 00:00:00 [check_http] <defunct>
30470 1 0 10:23 ? 00:00:03 /usr/bin/perl
/usr/local/zenloadbalancer/app/farmguardian/bin/farmguardian port443 -l
Stopping and starting farmguardian backend checks through the GUI fixes
the issue and makes these dissapear. So when the parent stops, the
childs also quit.
Anyone having an idea why they are defunct instead of closing?
Best regards,
Michael
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