Linux Autodiscovery : services, processes, hard disks

[Starko]

The reason I write this, is because your script doesn't work as perfect as i want it to be. My problem is the core function, which gets the process names.

ps axo comm | sort | uniq -c

I gets me something like this on our mailgateways

...
      1 tlsmgr
      2 trivial-rewrite
      3 udevd
      1 uniq
     11 /usr/sbin/amavi
      1 /usr/sbin/postf
      1 /usr/sbin/postg
      1 /usr/sbin/spamd
      1 verify
      1 watchdog/0
      1 watchdog/1
      1 watchdog/2
      1 watchdog/3
      1 xe-daemon
...

So my core processes amavisd, postfix, etc are never monitored.
And by now I'm not able to find a solution for a command that would get me a process list like this:

apache2
bash
clamd
cron
squid

[ghusson]

Typically, I don't have time to do this : spent time to analyse symptoms, dig, try, dig, RTFM, try, check, verify.
Anyway I spent 1h on it. My ps command showed only the first 8 chars of the process name. I made modifications. Can you test?

#!/usr/bin/perl

$first = 1;

print "{\n";
print "\t\"data\":[\n\n";

for (`cat /proc/*/comm`) {
  ($procname) = m/^(.*)$/;

  print "\t,\n" if not $first;
  $first = 0;

  print "\t{\n";
  print "\t\t\"{#PROCNAME}\":\"$procname\"\n";
  print "\t}\n";
  }

print "\n\t]\n";
print "}\n";

[Starko]

Hello and sorry for the late reply. I'm still here and I'm still testing. Just had a bad week, so there wasn't time for a reply.

I tried your new command:

cat /proc/*/comm

kjournald
ksoftirqd/1
scache
kworker/u:1
watchdog/1
smtp
smtpd
migration/2
smtp
smtp
kworker/2:0
flush-202:32
smtpd
smtpd
ksoftirqd/2
watchdog/2
apache2
apache2
apache2
kjournald
migration/3
trivial-rewrite
kworker/3:0
smtpd
trivial-rewrite
ksoftirqd/3
smtpd
watchdog/3
init
smtpd
smtpd
xe-daemon
cpuset
 postfwd2::poli
khelper
rsyslogd
 postfwd2::poli
kdevtmpfs
zabbix_agentd
udevd
dccifd
kworker/0:2
policyd-weight
policyd-weight
cron
pdns_recursor
smtp
smtp
dbus-daemon
/usr/sbin/postf
 postfwd2::cach
 postfwd2::poli
/usr/sbin/amavi
sshd
sync_supers
/usr/sbin/amavi
 postfwd2::poli
/usr/sbin/amavi
/usr/sbin/postg
smtp
smtp
smtp
bdi-default
smtp
 postfwd2::poli
smtp
 postfwd2::poli
kintegrityd
smtpd
kblockd
kthreadd
smtpd
cleanup
clamd
cleanup
 postfwd2::poli
/usr/sbin/amavi
/usr/sbin/amavi
kworker/1:1
/usr/sbin/amavi
/usr/sbin/amavi
udevd
udevd
freshclam
tlsmgr
khungtaskd
kswapd0
sleep
 postfwd2::poli
ksmd
bounce
kworker/2:1
/usr/sbin/spamd
spamd child
kworker/0:0
flush-202:0
kworker/u:0
migration/0
 postfwd2::poli
 postfwd2::poli
kworker/3:1

I think I just have to use the "/usr/sbin/amavi" to monitor the amavisd process. But there still seem to miss some chars.

[ghusson]

Hello Starko,
I was asking myself if you had the solution and flew away... Happy to see it is not the case Sorry for your bad week.

After googleing, I found other solution. Sorry, it is still bash based (I could use Perl). But I think this will be stable (and will work at last in GNU-Linux).

Please try this and replace in the script :

for process_exepath in $(ls /proc/*/exe); do process_binpath=$(readlink --canonicalize $process_exepath); if [ "$process_binpath" != "" ]; then basename $process_binpath ; fi ;  done

BR
Gautier.