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| mlc |
 Posted: Mon Jun 20, 2016 8:51 am Post subject: Setting LD_LIBRARY_PATH with Broker created with -d defined |
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Newbie
Joined: 20 Jun 2016
Posts: 3
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IIB v10.0.0.4
Integration node must access Informix via ODBC.
iibadmin has primary group of mqbrkrs and is a member of mqm. mqm has primary group of mqm and is a member of mqbrkrs.
INFORMIX environment vars and LD_LIBRARY_PATH are set in iibadmin's .bash_profile.
IN is created using iibadmin and "-d defined" is NOT specified. Everything works fine when IN is started by iibadmin.
For multi-instance, IN is created using iibadmin and "-d defined" IS specified. Informix shared object files are missing from LD_LIBRARY_PATH.
cat /proc/{PID of DataFlowEngine}/environ shows the INFORMIX env vars that are set in iibadmin's .bash_profile, but Informix .so files are not in LD_LIBRARY_PATH.
With "-d defined" IN starts as MQ Service by mqm. But Enivronment for DFE has INFORMIX env vars set in iibadmin's .bash_profile.
We want to use "-d fined" so IN will auto-start when QM fails over and to have IN start/stop with QMgr. And we want to use one account -- iibadmin -- to administrate IN and QMgr.
We've found 2 ways to correct this problem:
Update LD_LIBRARY_PATH in /opt/IBM/iib-10.0.0.4/server/bin/mqsiprofile. Starting Qmgr using iibadmin and everything works fine.
PRO: iibadmin can administrate IN and Qmgr. CON: modifying mqsiprofile. There are warning about modifying mqsiprofile,
but the concern is losing modifications during software update. We don't see that as a problem.
Move setting of INFORMIX env vars and LD_LIBRARY_PATH from iibadmin's .bash_profile to mqm's .bash_profile. CON: mqm must start the Qmgr, LD_LIBRARY_PATH is incorrect if QMGr is started by iibadmin. Must use mqm and iibadmin to administer the IN and Qmgr.
Are there other options to solve this problem? Is there a known best-practice?
Thanks in advance.... |
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| mqjeff |
| Posted: Mon Jun 20, 2016 8:55 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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Alter the service to use a script that sets the environment variables and starts the broker too..
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| fjb_saper |
| Posted: Mon Jun 20, 2016 9:20 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20696
Location: LI,NY
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Look at the IIB Workpath /common/profiles
You can there add stuff that will be loaded when mqsiprofile runs, or if at broker level when the broker starts.
This is where IE02 support pack scripts get called and in general where the DB additional environment info really belongs.
Search the infocenter about creating a command environment for the broker.
Have fun 
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| mlc |
| Posted: Mon Jun 20, 2016 9:59 am Post subject: |
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Newbie
Joined: 20 Jun 2016
Posts: 3
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Thanks jeff and FJ for options.
Looked at /opt/IBM/iib-10.0.0.4/server/bin/runMQService investigating jeff's suggestion. All runMQService does is unset some vars, cd to ..../server/bin, source mqsiprofile and run mqsistart BK. So, I could make a copy of runMQService and add INFORMIX var and LD_LIBRARY_PATH to it, then change the MQ Service object to run my copy. Seems like it would work, though I'd need to test to make sure LD_LIBRARY_PATH is correct when Broker is started with iibadmin.
Found KC article on setting up iib command env. The article mentions using this approach of setting up db env's. So, this method looks the best. A simple script that sets INFORMIX vars and LD_LIBRARY_PATH is all that is needed. Need to test to validate that it works when starting Broker using iibadmin. |
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| mqjeff |
| Posted: Mon Jun 20, 2016 10:04 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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FJ's approach of using the common.profiles is the correct one.
Just put a script that does the right exports in there, and you'll be fine.
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| fjb_saper |
| Posted: Mon Jun 20, 2016 11:04 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20696
Location: LI,NY
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| mlc wrote: |
Found KC article on setting up iib command env. The article mentions using this approach of setting up db env's. So, this method looks the best. A simple script that sets INFORMIX vars and LD_LIBRARY_PATH is all that is needed. Need to test to validate that it works when starting Broker using iibadmin. |
This should work regardless of the user, as it gets incorporated into the mqsiprofile. The mqsiprofile explicitly checks the directory there for any scritps and runs them.
Using the broker's environment variables, this is how I check the current version and set the MQ Version accordingly...
Works like a charm.
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