I just started getting this message. Seems that many emails (but not all)
are getting hung up.
2012-04-11 13:22:16 1SI3wt-0006jb-DK Spool file is locked (another process
is handling this message)
I have no idea why this started happening; I've checked all the usual
suspects and I have plenty of spool space, the cpu is showing idle time,
and the load on the server is minimal.
And yet mail is getting hung up. I've googled all over the place and
there doesn't seem to be a single reason for this. What does this mean?
And more importantly how do I fix it?
selene:/var/log/exim4# ps auxwww | grep exim
mail 25292 0.0 0.0 86128 1948 ? S 13:13 0:00
/usr/sbin/exim4 -q
mail 25294 0.0 0.0 86128 1696 ? S 13:13 0:00
/usr/sbin/exim4 -q
100 25737 0.0 0.0 85772 2100 ? Ss 13:13 0:00
/usr/sbin/exim4 -bd -q30m
root 25741 0.0 0.1 85760 4220 ? S 13:13 0:00
/usr/sbin/exim4 -q
root 25744 0.0 0.0 86128 3644 ? S 13:13 0:00
/usr/sbin/exim4 -q
mail 25746 0.0 0.0 86128 1948 ? S 13:13 0:00
/usr/sbin/exim4 -q
mail 25748 0.0 0.0 86128 1696 ? S 13:13 0:00
/usr/sbin/exim4 -q
root 25894 0.0 0.1 86092 5332 ? S 13:15 0:00
/usr/sbin/exim4 -Mc 1SI3wt-0006jb-DK
mail 25895 0.0 0.0 86092 1992 ? S 13:15 0:00
/usr/sbin/exim4 -Mc 1SI3wt-0006jb-DK
mail 25898 0.0 0.0 86092 1652 ? S 13:15 0:00
/usr/sbin/exim4 -Mc 1SI3wt-0006jb-DK
root 25990 0.0 0.1 86092 5336 ? S 13:16 0:00
/usr/sbin/exim4 -Mc 1SI3yA-0006l8-Ky
mail 25995 0.0 0.0 86092 1996 ? S 13:16 0:00
/usr/sbin/exim4 -Mc 1SI3yA-0006l8-Ky
mail 25997 0.0 0.0 86092 1656 ? S 13:16 0:00
/usr/sbin/exim4 -Mc 1SI3yA-0006l8-Ky
root 26232 0.0 0.1 86092 5332 ? Ss 13:16 0:00
/usr/sbin/exim4 -odi -Mc 1SI3yI-0006p5-GG
mail 26233 0.0 0.0 86092 1988 ? S 13:16 0:00
/usr/sbin/exim4 -odi -Mc 1SI3yI-0006p5-GG
mail 26235 0.0 0.0 86092 1656 ? S 13:16 0:00
/usr/sbin/exim4 -odi -Mc 1SI3yI-0006p5-GG
root 26334 0.0 0.1 86092 5332 ? S 13:18 0:00
/usr/sbin/exim4 -Mc 1SI3zI-0006qX-Pp
mail 26339 0.0 0.0 86092 1992 ? S 13:18 0:00
/usr/sbin/exim4 -Mc 1SI3zI-0006qX-Pp
mail 26341 0.0 0.0 86092 1652 ? S 13:18 0:00
/usr/sbin/exim4 -Mc 1SI3zI-0006qX-Pp
root 27696 0.0 0.0 8292 880 pts/12 S+ 13:24 0:00 grep exim
--
On two occasions I have been asked,—"Pray, Mr. Babbage, if you put into
the machine wrong figures, will the right answers come out?" ... I am not
able rightly to apprehend the kind of confusion of ideas that could
provoke such a question.
—Charles Babbage, Inventor of the computer, 1864
