Defunct (zombie) processes on linux

I’ve noticed that there’s an increasing number of defunct processes on a R6.5 domino server running on Redhat 8.0 (kept up to date with Redhat’s up2date tool).

Below’s a list of all domino owned processes on this (test) server.

[UID PID PPID C STIME TTY TIME CMD

root 8811 1 0 Nov16 ? 00:00:06 SCREEN -m -d -S Domino /opt/lotus/bin/server

domino 8813 8811 0 Nov16 pts/2 00:00:00 /bin/sh /opt/lotus/bin/server

domino 8863 8813 0 Nov16 pts/2 00:53:49 /opt/lotus/notes/latest/linux/server

domino 8873 8863 0 Nov16 pts/2 00:00:53 /opt/lotus/notes/latest/linux/logasio NOTESLOGGER reserved

domino 9165 8863 1 Nov16 pts/2 00:58:13 /opt/lotus/notes/latest/linux/event

domino 9504 9248 0 Nov16 pts/2 00:06:01 /opt/lotus/notes/latest/linux/replica

domino 9505 9248 0 Nov16 pts/2 00:04:15 /opt/lotus/notes/latest/linux/router

domino 9506 9248 0 Nov16 pts/2 00:13:41 /opt/lotus/notes/latest/linux/update

domino 9507 9248 0 Nov16 pts/2 00:00:52 /opt/lotus/notes/latest/linux/amgr

domino 9508 9248 0 Nov16 pts/2 00:24:46 /opt/lotus/notes/latest/linux/adminp

domino 9509 9248 0 Nov16 pts/2 00:01:21 /opt/lotus/notes/latest/linux/sched

domino 9510 9248 0 Nov16 pts/2 00:00:16 /opt/lotus/notes/latest/linux/calconn

domino 9512 9248 0 Nov16 pts/2 00:03:11 /opt/lotus/notes/latest/linux/decs

domino 9513 9248 0 Nov16 pts/2 00:05:01 /opt/lotus/notes/latest/linux/http

domino 9515 9248 0 Nov16 pts/2 00:20:46 /opt/lotus/notes/latest/linux/ldap

domino 9516 9248 0 Nov16 pts/2 00:08:28 /opt/lotus/notes/latest/linux/pop3

domino 9518 9248 1 Nov16 pts/2 01:08:04 /opt/lotus/notes/latest/linux/runjava ChangeMan

domino 9524 9248 0 Nov16 pts/2 00:00:23 /opt/lotus/notes/latest/linux/maps

domino 9535 9248 0 Nov16 pts/2 00:09:58 /opt/lotus/notes/latest/linux/ca

domino 9538 9248 0 Nov16 pts/2 00:01:21 /opt/lotus/notes/latest/linux/collect

domino 9540 9248 0 Nov16 pts/2 00:08:48 /opt/lotus/notes/latest/linux/smtp

domino 9657 9248 0 Nov16 pts/2 00:00:28 /opt/lotus/notes/latest/linux/dircat

domino 9707 9505 0 Nov16 pts/2 00:07:22 /opt/lotus/notes/latest/linux/mtc

domino 9716 9178 0 Nov16 pts/2 00:00:00 /opt/lotus/notes/latest/linux/event

domino 9729 9507 0 Nov16 pts/2 00:00:49 /opt/lotus/notes/latest/linux/amgr -e 1

domino 9730 9507 0 Nov16 pts/2 00:00:46 /opt/lotus/notes/latest/linux/amgr -e 2

domino 9747 9680 0 Nov16 pts/2 00:00:00 [Y0768718.sh ]

domino 9893 9680 0 Nov16 pts/2 00:00:00 [Y4120287.sh ]

domino 11036 9680 0 Nov17 pts/2 00:00:00 [Y4532507.sh ]

domino 11053 9680 0 Nov17 pts/2 00:00:00 [Y8472245.sh ]

domino 11446 9680 0 Nov17 pts/2 00:00:00 [Y5847380.sh ]

domino 12442 9680 0 Nov17 pts/2 00:00:00 [Y5276136.sh ]

domino 12493 9680 0 Nov17 pts/2 00:00:00 [Y2865775.sh ]

domino 12503 9680 0 Nov17 pts/2 00:00:00 [Y2884649.sh ]

domino 12507 9680 0 Nov17 pts/2 00:00:00 [Y6824956.sh ]

domino 12530 9680 0 Nov17 pts/2 00:00:00 [Y6749677.sh ]

domino 12694 9680 0 Nov17 pts/2 00:00:00 [Y1796078.sh ]

domino 17266 9680 0 Nov18 pts/2 00:00:00 [Y7849942.sh ]

domino 17275 9680 0 Nov18 pts/2 00:00:00 [Y4943605.sh ]

domino 17469 9680 0 Nov18 pts/2 00:00:00 [Y3837390.sh ]

domino 17487 9680 0 Nov18 pts/2 00:00:00 [Y9105695.sh ]

domino 18265 9680 0 Nov18 pts/2 00:00:00 [Y1357444.sh ]

domino 18271 9680 0 Nov18 pts/2 00:00:00 [Y5141809.sh ]

domino 18275 9680 0 Nov18 pts/2 00:00:00 [Y6570727.sh ]

domino 18296 9680 0 Nov18 pts/2 00:00:00 [Y8388869.sh ]

domino 18458 9680 0 Nov18 pts/2 00:00:00 [Y0121720.sh ]

domino 18470 9680 0 Nov18 pts/2 00:00:00 [Y7675738.sh ]

domino 19158 9680 0 Nov18 pts/2 00:00:00 [Y2335931.sh ]

domino 19749 9680 0 Nov18 pts/2 00:00:00 [Y5784634.sh ]

domino 20376 9680 0 Nov18 pts/2 00:00:00 [Y2205531.sh ]

domino 20690 9680 0 Nov18 pts/2 00:00:00 [Y6982850.sh ]

domino 22797 9680 0 01:05 pts/2 00:00:00 [Y4459829.sh ]

domino 23009 9680 0 02:04 pts/2 00:00:00 [Y7301055.sh ]

domino 23785 9680 0 04:09 pts/2 00:00:00 [Y4854009.sh ]

domino 23792 9680 0 04:11 pts/2 00:00:00 [Y3338255.sh ]

domino 23818 9680 0 04:18 pts/2 00:00:00 [Y8435142.sh ]

domino 24913 9680 0 09:01 pts/2 00:00:00 /bin/sh /var/domino/Y8724715.sh

domino 24914 24913 0 09:01 pts/2 00:00:00 /usr/bin/iostat -d -x 60 2

Did anyone else experience this, are there any workarounds?

Subject: defunct (zombie) processes on linux

Yesterday I did face similar zombie processes on my central Domino 6.0.4 server running SLES8 with smp kernel 2.4.21-238. I did upgrade it to 2.4.21-251 and so far so good no zombie processes.

So in my scenario kernel upgrade solved the problem. Fingers crossed !

Subject: defunct (zombie) processes on linux

I expeirnced the same problem on AIX, and scanmail. The scanmail control centre had some bugs.At first I wrote a little script that would grep DEFUNCT from a ps command, and then kill the processes one by one, but later i just killed the PPID, and it worked.

Hope it helps…

Subject: defunct (zombie) processes on linux

I have the same problem, many defunct processes, Chronos, filret, updall. On6.5 linux, found any solution?