About running processes in background

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Operating Systems Solaris About running processes in background
# 1  
Old 08-23-2009
About running processes in background


I need to establish a procedure that will start an application in background each time my remote Solaris server is (re)started. This would be a kind of daemon. I am no sysadmin expert, so I am looking for pointers.

How should I proceed? What are the main steps?


# 2  
Old 08-23-2009
you should probably read about "init scripts" (if you are < solaris 10) or about "SMF" (solaris 10 or newer). a good startpoint is:

Sun Microsystems Documentation
Sun Microsystems - BigAdmin System Administration Portal
# 3  
Old 08-23-2009

The 'uname -r' command tells me that my Solaris version is 5.11.

I have been doing some reading and it seems like I would have to put my script in the /etc/init.d/ directory or in a /etc/rc?.d directory (? = run level).

Is this correct? If yes, in which directory should I put my script (and with which run level)?

I have also read about a svcadm command available on Solaris 10 to enable services, but it does not exist in 5.11. Is there anything I should do to 'activate' my service/script in 5.11? Or does copying the script in the proper directory enough?


# 4  
Old 08-23-2009
svcadm definitely exists with SunOS 5.11.

rc.d scripts are also still supported as an alternative.

If you are unsure about where to put your script, use run level 3 with a late run, eg:

Don"t forget to set stop scripts too:

/etc/rc0.d/K00myLocalService , /etc/rc2.d/K00myLocalService and /etc/rc3.d/K00myLocalService.
# 5  
Old 08-23-2009
When I run svcadm, the command is not found. May be it has not been installed.

Just to make sure I understand you correctly:

i) /etc/rc3.d/S99myLocalService -> S99 means start late? In other words, Solaris would start this process after S98xxx files for example?

ii) You mention the creation of stop scripts. Do I have to create 3 scripts or is one in rc3.d enough?

iii) The stop script should contain a command stopping my service correct?

iv) If I use the /etc/rc?.d do I still need to activate my service with svcadm?


# 6  
Old 08-23-2009
5.11 (opensolaris) is newer than solaris 10, so there should be the tools (make sure you are "root") for manage services. these are:

svcs, svcadm, svccfg, svcprop, ...

if you try to use a legacy script, you have to know where to put it, depending on the runlevel and the dependencies...

Last edited by DukeNuke2; 08-23-2009 at 02:01 PM.. Reason: wrong command (svccfg)
# 7  
Old 08-23-2009
5.11 is newer than 10, I would never have guessed, lol !!!

svcs and svcprop do work, but svcadm and svcconf not (i.e., command not found). I have sent an email to the system administrator to get more info.


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