On Fri, 14 Nov 2014, Rainer Gerhards wrote:
2014-11-13 23:05 GMT+01:00 David Lang <[email protected]>:
I would say that if the test is using hundreds of filehandles at one time,
something is going wrong, let alone thousands.
I have just checked the tests. Something is wrong here. It should use 20
connections at maximum. Maybe connections cached by the OS during close
count against the ulimit as well?
I wonder if there is some file monitoring software (Anti Virus like) that is
seeing all the temporary files rsyslog is creating during the test and holding
on to them to scan them.
David Langy
Note that there are some tests that explicitly use many connections --
because that is what they test. manyptcp.sh is a sample of this.
In any case, I'll add a valgrind test for imptcp_conndrop.sh, so that we
can see if there is an actual leak. That would be an explanation.
Thanks,
Rainer
David Lang
On Thu, 13 Nov 2014, Thomas D. wrote:
Hi,
On 2014-11-13 21:28, David Lang wrote:
What else is going on? or is this one test hitting the 1024 open file
limit?
I suspect that your user is doing other things that are making it so
that the
rsyslog test is going over the limit.
It is the "imptcp_conndrop.sh" test. I did some testing:
I changed the Makefile so that only the "imptcp_conndrop.sh" test will
run (https://bpaste.net/show/af9eac014278).
# ps -u thomas
PID TTY TIME CMD
# lsof -u thomas /var/tmp/portage | grep -i thomas | wc -l
0
# su thomas -s "/bin/sh" -c "id && \
ulimit -a && \
cd /var/tmp/portage/app-admin/rsyslog-8.9999/work/rsyslog-8.9999/ &&
make check"
It is very strange... I cannot find the EXACT value.
It is sometimes passing the test with "ulimit -n = 1024"... but more
often it is failing. Same with 2048... sometimes it will pass, but
sometimes the test will fail.
Higher value -> lower failure rate; Haven't seen a failure with 3072 yet.
-Thomas
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