RAV autoupdate script causing issues today

Julian Field mailscanner at ecs.soton.ac.uk
Wed Oct 1 09:46:32 IST 2003

Try this.

It will time out after 5 minutes.

At 08:43 01/10/2003, you wrote:
>On Tuesday, Sep 30, 2003, at 22:37 US/Pacific, Craig Pratt wrote:
>>Yup - seeing the same thing. If I run it manually, it just hangs at
>>"Make remote list of files..."
>>/usr/local/rav8/bin/ravav --update=engine
>>RAV AntiVirus command line for Linux i686.
>>Version: 8.3.1.
>>Copyright (c) 1996-2001 GeCAD The Software Company. All rights
>>Start updating... Tue Sep 30 22:26:21 2003
>>Opening a socket        ...done!
>>Looking for: ftp.us.ravantivirus.com    ...done!
>>Connecting to server: ftp.us.ravantivirus.com   ...done!
>>User login ...
>>Password authentification ...
>>Chdir remote... /pub/rav/update/rave
>>Make remote list of files...
>>I seem to remember there being a setting for how often MS will run the
>>autoupdate script. But I don't seem to be able to find it.
>DOH - of course, it's cron that's running it.
>I *think* what's happening is:
>(1) update script is run by cron
>(2) Update script grabs the update lock,
>(3) RAV update stalls (looks like the FTP server has fallen down and
>RAV's update function busy-waits - caught mine using 98% of CPU)
>(4) MailScanner stalls waiting for the lock (last log entry is
>"MailScanner[10669]: Virus and Content Scanning: Starting").
>(5) check_MailScanner doesn't detect the condition since the process is
>running - just blocked
>Note that I'm running MS 4.12-2.
>Temporary solution for me:  mv /etc/cron.hourly/update_virus_scanners
>Running ftp manually to either ftp.us.ravantivirus.com or
>ftp.ravantivirus.com seems to demonstrate that their servers are hosed.
>Don't know why.
>>On Tuesday, Sep 30, 2003, at 14:56 US/Pacific, Dan Williamson wrote:
>>>I'm having the same problem as well.
>>>4 of my servers locked, queuing several thousand emails before the
>>>started to come in.
>>>I just recently upgraded all servers to 4.23-11.
>>>I am killing all ravav processes on the hour and restarting
>>>-----Original Message-----
>>>From: MailScanner mailing list [mailto:MAILSCANNER at JISCMAIL.AC.UK]On
>>>Of Mickey Everts
>>>Sent: Tuesday, September 30, 2003 3:34 PM
>>>Subject: RAV autoupdate script causing issues today
>>>On the two servers that I admin which are running MailScanner 4.20-3,
>>>"update_virus_scanners" script that runs hourly has been causing
>>>since about 9:00 AM PST.  The root cause appears to be that
>>>"ravav --update=engine" command is using taking way to long and using
>>>a lot
>>>of CPU time, enough that MailScanner can't keep up it seems.  By the
>>>time I
>>>noticed, there was several hundred messages in the "mqueue.in"
>>>directory. I
>>>have disabled RAV for now, but I have a couple questions:
>>>Has the "update_virus_scanners" perhaps been improved in recent
>>>perhaps to make it not so vulnerable to this kind of thing?  Perhaps
>>>external commands it calls could be "nice'd" to some level that would
>>>cause issue if they went awry?  Did this happen to anyone else?
>>>root     13903  0.0  0.0  1432  444 ?        S    13:01   0:00  \_
>>>root     13904  0.0  0.1  2048  956 ?        S    13:01   0:00      \_
>>>/bin/bash /usr/bin/run-parts /etc/cron.hourly
>>>root     13922  0.0  0.1  2044  968 ?        S    13:01   0:00
>>>  \_
>>>/bin/bash /usr/sbin/update_virus_scanners
>>>root     13958  0.0  0.2  3284 1448 ?        S    13:01   0:00
>>>  |
>>>\_ /usr/bin/perl -w /usr/lib/MailScanner/rav-autoupdate
>>>root     13959 84.0  0.1  1548  676 ?        R    13:01   6:57
>>>  |
>>>\_ /usr/local/rav8//bin/ravav --update=engine
>>>Until now, MailScanner has been ultra-reliable for months.  Good job
>This message checked for dangerous content by MailScanner on StrongBox.
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Julian Field
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