SpamSnake - Ubuntu 12.04 - Greyfix crashing and other unknowns
 

Hello,

This has been my first successful setup of a Buruwa front-end server. This has also worked well with everything in place for a couple of weeks. Although, I have had a nagging problem that SEEMS to stem from Greyfix. Let me mention that this is the first time I have gotten this to work as well. With all that being said, I would like to fix the issue and not disable Greyfix, if possible.

Setup
VM on VMware ESXi 5.1
Ubuntu 12.04 LTS
Mailscanner 4.84.5-3
Greyfix 0.3.9
Baruwa 1.1.2-4
Postfix 2.9.3


I am also receiving 'Other Bad Content Detected' subject messages with this in the information section: Report: MailScanner: Message attempted to kill MailScanner

This whole process seems to lock up the entire machine. After logging into the machine I am able to type reboot now but nothing happens. I have to do a hard shutdown and after the machine comes back up I run this:

Postfix main.cf

It seems to run fine for the next couple of days and then it starts all over again.

I am not sure that I am on the correct path with Greyfix being the problem. After searching around I see that it may be clamav as the issue but I do not see anything indicating that in the logs.

Any help is appreciated.

Here is something that I did find from user 'atran' on page 3 of this post

I noticed that my /usr/sbin/fuzzy-cleanmysql would hang and my CPU would jump WAY up when trying to run. I added the <CONFIG> to the while loop and it runs without a hitch. I also check the Hash and Safe tables after the script running and I noticed that the tables were smaller.

This may have been the issue but I would still like an explanation on the Greyfix error above. Although, it may be related to the while loop in /usr/sbin/fuzzy-cleanmysql.

I am still having the problem. Could someone help me out on this? I don't want to disable greyfix because it works well, except for once a week (or so) this happens. It seems as if the Greyfix DB is getting full or corrupted and the only way to fix the errors I see below is:


master.cf
main.cf

OK, I think I have narrowed down the issue to the startup script. The problem is this:

When I run "/etc/init.d/mailscanner restart" I get the message "None found, None killed". Even though it didn't kill the running MailScanner tasks, it starts new ones. Therefore, after a week of that and a restart every night during a specific cron job, on Sunday I have about 20-30 MailScanner processes running which is tearing up the memory and CPU.

What I am seeing is that I am unable to run any "kill" or "killall" commands on the MailScanner processes. I am always getting "no process found".

Does this tut need a new start-stop script? If so, where would I find that?

Try the method describe at the bottom of this page:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=649835

Rocky,

Thanks for the read. I confirm that I do have perl 5.14.2 and it is probably the issue. Should the tutorial be changed to either

1) Downgrade the version of perl
OR
2) Change the /etc/init.d/mailscanner script to apply the differences

I think I am going to change my script to apply the differences and see if that helps.

Thanks Rocky! Great help and great tutorial, as always.

I got it to work by tweaking the script /etc/init.d/mailscanner

Here is what I did:

1) Look in MailScanner.conf and find the line that says "PID file" and copy the PID file and location.
2) Define the variable "PIDFILE" after "CONFFILE" with your PID file location. Mine looks like this but ymmv

3) Comment out this line
4) Add this line right below it
5) Comment out this line
6) Add this line right below that
7) Comment out this line
8) Add this line right below that
9) Finally, comment out this line
10) And add this line right below that
Here is the contents of my updated, working startup script for those of you who do not have it working
#! /bin/sh
### BEGIN INIT INFO
# Provides: MailScanner daemon
# Required-Start: $local_fs $remote_fs
# Required-Stop: $local_fs $remote_fs
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Controls mailscanner instances
# Description: MailScanner is a queue-based spam/virus filter
### END INIT INFO
# Author: Simon Walter <simon.walter@hp-factory.de>
# PATH should only include /usr/* if it runs after the mountnfs.sh script
PATH=/usr/sbin:/usr/bin:/bin:/sbin:/opt/MailScanner/bin
DESC="mail spam/virus scanner"
NAME=MailScanner
PNAME=mailscanner
DAEMON=/opt/MailScanner/bin/$NAME
STARTAS=MailScanner
SCRIPTNAME=/etc/init.d/$PNAME
CONFFILE=/opt/MailScanner/etc/MailScanner.conf
PIDFILE=/opt/MailScanner/var/MailScanner.pid
# Exit if the package is not installed
[ -x "$DAEMON" ] || exit 0
run_nice=0
stopped_lockfile=/var/lock/subsys/MailScanner.off
# Read configuration variable file if it is present
[ -r /etc/default/$PNAME ] && . /etc/default/$PNAME
# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.sh
# Define LSB log_* functions.
# Depend on lsb-base (>= 3.0-6) to ensure that this file is present.
. /lib/lsb/init-functions
# sanity check for permissions
fail()
{
echo >&2 "$0: $1"
exit 1
}
check_dir()
{
if [ ! -d $1 ]; then
mkdir -p "$1" || \
fail "directory $1: does not exist and cannot be created"
fi
actual="$(stat -c %U $1)"
if [ "$actual" != "$2" ]; then
chown -R "$2" "$1" || \
fail "directory $1: wrong owner (expected $2 but is $actual)"
fi
actual="$(stat -c %G $1)"
if [ "$actual" != "$3" ]; then
chgrp -R "$3" "$1" || \
fail "directory $1: wrong group (expected $3 but is $actual)"
fi
}
user=$(echo $(awk -F= '/^Run As User/ {print $2; exit}' $CONFFILE))
group=$(echo $(awk -F= '/^Run As Group/ {print $2; exit}' $CONFFILE))
check_dir /var/spool/MailScanner ${user:-postfix} ${group:-celeryd}
check_dir /var/lib/MailScanner ${user:-postfix} ${group:-celeryd}
check_dir /var/run/MailScanner ${user:-postfix} ${group:-celeryd}
check_dir /var/lock/subsys ${user:-root} ${group:-root} #Required to Create Folder
#check_dir /var/lock/subsys ${user:-postfix} ${group:-celeryd} #Required to Create Folder
check_dir /var/lock/subsys/MailScanner ${user:-postfix} ${group:-celeryd}
#
# Function that starts the daemon/service
#
do_start()
{
# Return
# 0 if daemon has been started
# 1 if daemon was already running
# 2 if daemon could not be started
# start-stop-daemon --start --quiet --startas $STARTAS --name $NAME --test > /dev/null \
start-stop-daemon --start --quiet --startas $STARTAS --pidfile "$PIDFILE" --test > /dev/null \
|| return 1
# start-stop-daemon --start --quiet --nicelevel $run_nice --chuid postfix:celeryd --exec $DAEMON --name $NAME -- $DAEMON_ARGS \
start-stop-daemon --start --quiet --nicelevel $run_nice --chuid postfix:celeryd --exec $DAEMON --pidfile "$PIDFILE" -- $DAEMON_ARGS \
|| return 2
# Add code here, if necessary, that waits for the process to be ready
# to handle requests from services started subsequently which depend
# on this one. As a last resort, sleep for some time.
# Set lockfile to inform cronjobs about the running daemon
RETVAL="$?"
if [ $RETVAL -eq 0 ]; then
touch /var/lock/subsys/mailscanner
rm -f $stopped_lockfile
fi
if [ $RETVAL -eq 0 ]; then
echo "MailScanner Started"
fi
}
#
# Function that stops the daemon/service
#
do_stop()
{
# Return
# 0 if daemon has been stopped
# 1 if daemon was already stopped
# 2 if daemon could not be stopped
# other if a failure occurred
# start-stop-daemon --stop --retry=TERM/30 --name $NAME
start-stop-daemon --stop --retry=TERM/30 --pidfile "$PIDFILE"
RETVAL="$?"
[ "$RETVAL" = 2 ] && return 2
# Remove lockfile for cronjobs
if [ $RETVAL -eq 0 ]; then
rm -f /var/lock/subsys/mailscanner
touch $stopped_lockfile
fi
if [ $RETVAL -eq 0 ]; then
echo "MailScanner Stopped"
fi
}
#
# Function that sends a SIGHUP to the daemon/service
#
do_reload() {
# start-stop-daemon --stop --signal 1 --quiet --name $NAME
start-stop-daemon --stop --signal 1 --quiet --pidfile "$PIDFILE"
return 0
}
case "$1" in
start)
[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
do_start
case "$?" in
0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
esac
;;
stop)
[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
do_stop
case "$?" in
0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
esac
;;
restart|force-reload)
#
# If the "reload" option is implemented then remove the
# 'force-reload' alias
#
log_daemon_msg "Restarting $DESC" "$NAME"
do_stop
case "$?" in
0|1)
do_start
case "$?" in
0) log_end_msg 0 ;;
1) log_end_msg 1 ;; # Old process is still running
*) log_end_msg 1 ;; # Failed to start
esac
;;
*)
# Failed to stop
log_end_msg 1
;;
esac
;;
*)
echo "Usage: $SCRIPTNAME {start|stop|restart|force-reload}" >&2
exit 3
;;
esac
exit 0