Crash protection

[David Lee]

On Tue, 3 Mar 2009, David Lee wrote:

> [...]
> Anyway, we have it in service, and I'll keep monitoring it.


Something looking not quite right overnight (RPM 4.75.6-1).

The system is handling a fair bit of mail, but not under any real stress, 
and the inbound queue usually has a few entries (occasionally empty; 
occasionally exceeding 20).  Doing about 25,000 msgs/day.

-------------------------------------------------------
[root at mailrelay5 ~]# date; MailScanner --processing=0
Wed Mar  4 09:09:49 GMT 2009
Currently being processed:

Number of messages: 11
Tries   Message Last Tried
=====   ======= ==========
1       n2499fG4028919  Wed Mar  4 09:15:02 2009
1       n2499h9K028926  Wed Mar  4 09:14:21 2009
1       n2499g7W028925  Wed Mar  4 09:13:43 2009
1       n2460pEw028445  Wed Mar  4 06:05:35 2009
1       n2460mQf028411  Wed Mar  4 06:03:05 2009
1       n2410rkc021019  Wed Mar  4 01:06:54 2009
1       n2410ru4021020  Wed Mar  4 01:04:56 2009
1       n23M0osK026902  Tue Mar  3 22:05:33 2009
1       n23L0oBo004261  Tue Mar  3 21:05:06 2009
1       n23G0uhc025757  Tue Mar  3 16:04:31 2009
1       n23G0Jnl025407  Tue Mar  3 16:03:19 2009
[root at mailrelay5 ~]# 
-------------------------------------------------------

1. Residual stuff from yesterday afternoon and overnight.  The log files 
indicate that these were processed OK.  (It so happens that all were "Spam 
Actions: message ... actions are delete".)

2. For the top entries, note the current time-of-day (c. 09.09) and the 
"last tried" time... which is in the future.  (A few minutes later those 
top entries (09:xx:yy) have disappeared.)  So it looks as though something 
is either recording or reporting an incorrect time.  And I suppose there's 
a chance that a bug here might be precipitating the 'overnight residue' 
observation.



Further, the log file has a small number of "Making attempt 2 at ..."
per hour.


Let me know if you want any more information or to try new versions, etc.

All the best.

-- 

:  David Lee                                I.T. Service          :
:  Senior Systems Programmer                Computer Centre       :
:  UNIX Team Leader                         Durham University     :
:                                           South Road            :
:  http://www.dur.ac.uk/t.d.lee/            Durham DH1 3LE        :
:  Phone: +44 191 334 2752                  U.K.                  :