Inoculate scanner gets skipped after a while as if its marked busy

[Scott Farrell]

Hi,

firstly, I cant beleive Julian is stil so commitied.

I finally upgraded to mailscanner-4.30.3-1 (from my own heavily patched
3.13 where I helped Julian write the original inoculate code).

Anyway, I love 4.30, the upgrade was pretty straight forward.

My problem is my inoculate scanning stops working, and is skipped over. I
have 4 virus scanners enabled, and the others keep going.

I assume at one stage or another the inoculate doesnt return like it
should, and it is marked as Busy.

The /tmp flag for inoculate shows it is busy. (see lots of details below).

I do not use the update_virus_scanners, I got rid of it out of cron, but
apparently its not the only code that either locks things in /tmp or calls
update_virus_scanners. Obviously, I am updating signatures myself.

I have Max Children = 1 in the mailscanner.conf. But I guess that Virus
Scanner Timeout = 300 times out on inoculate at some stage and marks it
busy or something.

Clearly when I restart it from init.d it all runs OK again for a while.

I guess what I need is one of these:
- understand why its busy and fix the condition
- get rid of the busy
- more agressively restart mailscanner when the condition occurs / or the
Virus Scanner Timeout times out
- move over to update_virus_scanners if its significantly better.

cat InoculateBusy.lock
Virus checker locked for scanning by inoculate 3883

ps ax|grep 3883
 3883 ?        SN     0:05 /usr/bin/perl -I/usr/lib/MailScanner
/usr/sbin/MailSc

ps ax|grep Mail
 3882 ?        SN     0:00 /usr/bin/perl -I/usr/lib/MailScanner
/usr/sbin/MailSc
 3883 ?        SN     0:05 /usr/bin/perl -I/usr/lib/MailScanner
/usr/sbin/MailSc
16461 pts/9    S      0:00 grep Mail

Thanks
Scott

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