Red Hat Bugzilla – Bug 434645
DATA timeouts leave behind stale df files in mqueue
Last modified: 2017-06-27 09:58:10 EDT
Description of problem:
If a timeout occurs while reading a message (during the DATA phase) a df file
might have been left behind in the queue.
Version-Release number of selected component (if applicable):
Release notes for sendmail 8.13.7 say they fix this problem, which was
introduced in 8.13.6 (and presumably backported into the RHEL sendmail).
This request was evaluated by Red Hat Product Management for
inclusion, but this component is not scheduled to be updated in
the current Red Hat Enterprise Linux release. If you would like
this request to be reviewed for the next minor release, ask your
support representative to set the next rhel-x.y flag to "?".
Does anybody know how to reproduce this? I set the DATA timeout to 5 seconds and run the following script in several instances for hours and everything work as expected (no stale files in the queue):
echo "ehlo localhost">&3
echo "mail from: root@localhost">&3
echo "rcpt to: root@localhost">&3
dd if=/dev/urandom bs=1024 count=1024 >&3
Created attachment 450439 [details]
Finally reproduced by following script.
Created attachment 450502 [details]
Back-ported patch from sendmail-8.13.7.
Created attachment 451426 [details]
Proposed cron script
Proposed script for cleaning stalled mqueue files that were created before sendmail update. It can be also used as cron script (by moving it to e.g. cron.daily) for periodical cleaning (in case the problem persists).
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.