topic Re: Create service files for Linux, systemd and loadmgr in Administration and Deployment

Create service files for Linux, systemd and loadmgr

timc_syd — Wed, 29 Apr 2015 01:02:48 GMT

Dear Sys Admins,

Has anyone worked out how to run the SAS loadmgr as a service (eg. for Enterprise, web services or SAS/IntrNet) on RHEL 7 or similar Linux system that uses the newer systemd services ?

Do you have instructions for modifying the old sysV init scripts or new scripts for systemd ?

It should be something supplied by SAS during the standard setup/deployment process but have so far don't want to go near it.

OS=Red Hat Enterprise Linux 7.1 (RHEL7.x)

Service system provided by= systemd (systemd-208-20.el7_1.2.x86_64)

SAS= SAS 9.4 (TS1M2) for Linux x86_64

No SysV Init of earlier versions.

See attached script copied from a previous RHEL 6 (and earlier) installation.

Re: Create service files for Linux, systemd and loadmgr

Kurt_Bremser — Wed, 29 Apr 2015 06:08:46 GMT

Looks to me like SAS does not support systemd at the moment, a search for "systemd" in the knowledge base returned no results.

Your RHEL system administrator should have no problem implementing a systemd config from the old SYSV entries (inittab)

Re: Create service files for Linux, systemd and loadmgr

Kurt_Bremser — Wed, 29 Apr 2015 06:13:50 GMT

Just looked at your script.

The systemd service file you must create should (IMHO) simply call your saswebg script with the correct parameters in the ExecStart, ExceStop and ExecReload directives in the [Service] section as described in (example) systemd.service

Re: Create service files for Linux, systemd and loadmgr

StefanM — Wed, 09 Jun 2021 12:22:59 GMT

NOW in 2021 sysv is deprecated and SAS does not deliver anything systemd compabtible

Re: Create service files for Linux, systemd and loadmgr

Sajid01 — Wed, 09 Jun 2021 12:42:10 GMT

Hello @timc_syd
The following references show how to create systemd scripts
https://www.suse.com/support/kb/doc/?id=000019672

https://medium.com/@benmorel/creating-a-linux-service-with-systemd-611b5c8b91d6

Re: Create service files for Linux, systemd and loadmgr

StefanM — Wed, 09 Jun 2021 13:03:52 GMT

Hi,
the goal is that we as customer get a script from SAS and don't have to do it on our own where we lose the support.

Means: SAS has to deliver scripts for systemd

Re: Create service files for Linux, systemd and loadmgr

Sajid01 — Wed, 09 Jun 2021 13:22:35 GMT

In a multi tier environment with different components running on different servers and a specific boot order to be followed, systemd is not the right choice.
For a single machine install and where no specific order is needed systemd may work.
It is a trivial thing which any Linux admin can do.

Re: Create service files for Linux, systemd and loadmgr

gwootton — Wed, 09 Jun 2021 14:42:12 GMT

You may want to take a look at SAS_lsm for managing startup/shutdown of SAS 9 services:

https://support.sas.com/kb/58/231.html

Re: Create service files for Linux, systemd and loadmgr

StefanM — Thu, 10 Jun 2021 14:00:45 GMT

Hi,

lsm has no support for systemd too but we will take a look i detail.

SAS should deliver systemd or LSB or support as basic because SYSV is not supported anymore in current Linux distribution.
We can manage by ourself to shutdown the hosts in the correct order so lsm is not needed in general.
But the issue is that even on a single host dependencies for the shutdown are missing.

SAS Deployment Agent seems to use LSB mode.