[rrd-users] RRDTool as a server in Solaris

[Steve Shipway]

When you define a normal solaris SMF service, it expects to be given a command that starts the process, and this process continue to live until killed by the kill command.

Your 'start' method is just 'rrdtool', which will exit on finishing the commands - which is what happens.
Your 'stop' method has 'blabla' instead of the process ID (which you cannot determine anyway).

When you want to run rrdtool as a service, you actually should do it via xinetd, which will spawn a separate handler per connection.

To make it work with solaris, you have two options:


1.       Use the inetd method; I'm not an expert with SMF, but I know you can (somehow) define inetd-type handlers via SMF as well using a differrent syntax

2.       Use rrdcached instead of rrdtool.  This is probably a better solution, though you might want to get the trunk version of rrdtool 1.4.x in order to have the maximum possible support for the various rrdtool commands.  The rrdcached command will work nicely with SMF as it is a single daemon and will output the PID to a separate file which you can then use in your kill command.

I would use option (2) but your circumstances might mean (1) is a better option for you.

Steve

________________________________
Steve Shipway
ITS Unix Services Design Lead
University of Auckland, New Zealand
Floor 1, 58 Symonds Street, Auckland
Phone: +64 (0)9 3737599 ext 86487
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Email: s.shipway at auckland.ac.nz<mailto:s.shipway at auckland.ac.nz>
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From: rrd-users-bounces+s.shipway=auckland.ac.nz at lists.oetiker.ch [mailto:rrd-users-bounces+s.shipway=auckland.ac.nz at lists.oetiker.ch] On Behalf Of Jose Ignacio Gil Jaldo
Sent: Wednesday, 1 December 2010 1:04 a.m.
To: rrd-users at lists.oetiker.ch
Subject: [rrd-users] RRDTool as a server in Solaris

Hi,

I'm very new to Solaris and to rrdtool, but in my company we've been using rrdtool in linux without any problem.

Anyway, I'm trying deploy it in a solaris 10 machine and I am not being able to start it as a server.

I have created a SMF to start it but it seems to go down. The SMF is:

<?xml version='1.0'?>
<!DOCTYPE service_bundle SYSTEM '/usr/share/lib/xml/dtd/service_bundle.dtd.1'>
<service_bundle type='manifest' name='export'>
  <service name='rrdtool' type='service' version='0'>
    <create_default_instance enabled='true'/>
    <single_instance/>
 <instance name='rrdtool' enabled='false'>
                <exec_method
                        type='method'
                        name='start'
                        exec='/opt/csw/bin/rrdtool - <Directory>'
                        timeout_seconds='0'>
                </exec_method>
                <exec_method
                        type='method'
                        name='stop'
                        exec='kill -9 blabla'
                        timeout_seconds='30'>
                </exec_method>
        </instance>
  </service>
</service_bundle>

where <Directory> is the place where I want to leave the statistics. However, when I try to start it using: svcadm enable rrdtool:rrdtool

I get the following log:
/usr/bin/kill[8]: blabla: Arguments must be %job or process ids
[ Nov 30 11:42:55 Method "stop" exited with status 1 ]
[ Nov 30 11:50:44 Leaving maintenance because disable requested. ]
[ Nov 30 11:50:44 Disabled. ]
[ Nov 30 11:50:47 Enabled. ]
[ Nov 30 11:50:47 Executing start method ("/opt/csw/bin/rrdtool - /opt/synchronica/synchronica/demo-server/statistics") ]
[ Nov 30 11:50:47 Method "start" exited with status 0 ]
[ Nov 30 11:50:47 Stopping because all processes in service exited. ]
[ Nov 30 11:50:47 Executing stop method ("kill -9 blabla") ]
/usr/bin/kill[8]: blabla: Arguments must be %job or process ids
[ Nov 30 11:50:47 Method "stop" exited with status 1 ]
[ Nov 30 11:50:47 Executing stop method ("kill -9 blabla") ]
/usr/bin/kill[8]: blabla: Arguments must be %job or process ids
[ Nov 30 11:50:47 Method "stop" exited with status 1 ]
[ Nov 30 11:50:47 Executing stop method ("kill -9 blabla") ]
/usr/bin/kill[8]: blabla: Arguments must be %job or process ids
[ Nov 30 11:50:47 Method "stop" exited with status 1 ]

Also if I run that command in command-line it does not end inmediately and I can run commands.

I know that kill -9 blablabla is not correct but it should not be executed (it is executed because the command ends). Any clue about the problem cause? Do I have to register something else anywhere?

Thanks a lot

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