[p4] p4 monitor terminate never seems to work

Michael Mirman

2017-10-16 20:28:31 UTC

I also find that on our Commit server we typically have around 100 pid's

active (ps ax | grep p4d), though 'p4 monitor show' usually only shows
about 10-15 processes, what I'd expect.

I can't explain this with Ctl-C. Presumably, the p4d process *should* go away (at least eventually) if the client does Ctl-C.
The p4d log often says "Partner exited unexpectedly", and at least in some cases it could be traced back to Ctrl-C.

However, there are often cases when p4d leaks processes. Sometimes they are shown in "p4 monitor", sometimes they aren't.
In our case, there is almost always an edge server and a broker in the chain, and that possibly plays an important role in leaking.

We have a script, which runs as a cron job, looking for leaked and/or hung processes, and either kills them or it can report them for an investigation.
Our latest bane is leaking "login" processes ("p4 login -s", "p4 login", "p4 login -a").
Users never complain - this is purely the problem on the server side. We get about a dozen of those processes on a good day, and several dozen processes on a bad day.

I long ago accepted this as a fact of life.

:-(
--
Michael Mirman
MathWorks, Inc.
3 Apple Hill Drive, Natick, MA 01760
508-647-7555

-----Original Message-----
Of Matt Janulewicz
Sent: Monday, October 16, 2017 2:55 PM
Subject: Re: [p4] p4 monitor terminate never seems to work
Posted on behalf of forum user 'Matt Janulewicz'.
[https://forums.perforce.com/index.php?app=forums&module=forums&sectio
n=findpost&pid=22495]

FWIW: We don't have to run terminate too often, but I find that at least half

the time, I end up having to kill the process on the server. I don't have any data
on which commands cause this. I've seen this since I started working with
Perforce, including 2013.x, 2015.x or 2016.x, and 2017.1 .
I find that I have to do a proper 'kill' 100% of the time. My usual
process is 'p4 monitor terminate pid', 'p4 monitor clear pid',
'kill pid'.
I also find that on our Commit server we typically have around 100 pid's
active (ps ax | grep p4d), though 'p4 monitor show' usually only shows
about 10-15 processes, what I'd expect. I think perhaps when people
'ctl+c' on a process it doesn't get killed on the server. I long ago
accepted this as a fact of life.
--
http://forums.perforce.com/index.php?/topic/3581-p4-monitor-terminate-
never-seems-to-work
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