Hi Arco,
QZRCSRVS jobs are run in QUSRWRK via a Prestart Job Entry. By default the QUSRWRK subsystem description has the QZRCSRVS set to Maximum number of jobs set to *NOMAX. These jobs are cleaned up by a cleanup thread that runs by default every hour on the IBM i, and will clear a job if it hasn't been used in the past 2 hours. So many of these jobs may just be idle remnant jobs. There are two common ways to tune QZRCSRVS jobs.
1) Set Maximum number of jobs to a fixed number.
2) Increase the Number of times used to a higher number so these jobs can be re-used more often.
To see what your settings are now, from a command line on an emulator issue the following IBM i command:
DSPSBSD QUSRWRK
Then select option 10 for Prestart job entries:
Then put option 5 on QZRCSRVS and review the current values. (Maximum number of jobs and Maximum number of uses.)
Yes, you can limit the number, but keep in mind it will impact your performance in RDi if you limit the number of jobs and several users are running on the same system. These jobs are used by other applications that connect to the IBM i using Java, so care is required when tuning these jobs.
Here are some articles on the topic and how to change the prestart job entries:
IBM Knowledge Center:
https://www.ibm.com/support/knowledgecenter/en/ssw_ibm_i_72/rzaih/rzaihwhymonitorimpacts.htm
IT Jungle article:
https://www.itjungle.com/2005/04/06/fhg040605-story03/
Command to change:
https://www.ibm.com/support/knowledgecenter/ssw_ibm_i_72/cl/chgpje.htm
Hope this helps!
Steve Ferrell
-----Original Message-----
From: WDSCI-L <wdsci-l-bounces@xxxxxxxxxxxx> On Behalf Of Arco Simonse
Sent: Friday, September 7, 2018 7:22 AM
To: wdsci-l <wdsci-l@xxxxxxxxxxxx>
Subject: [WDSCI-L] iProject reconciler and QZRCSRVS jobs
Hi,
When I use the remote reconciler for iProjects, (and especially when I have a new large iProject that I want to use with the reconciler), the IBM i system creates hundreds of QZRCSRVS jobs, and is eating up CPU.
Does anybody know of a way to control this, is it possible to set a maximum number of parallel QZRCSRVS jobs or something like that?
Best regards,
Arco Simonse
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