MQSeries.net :: View topic - Enabling MQ features with enviroment variables

zpat · Posted: Mon Feb 02, 2015 8:27 am Post subject:

Could people list the optional WMQ features/behaviour enabled with environment variables?

I am not suggesting other people use them without a good reason (and probably only on advice from IBM) but it might be useful to know they exist (and google them for more details).

Here are the ones that I use

export MQS_REPORT_NOAUTH=TRUE

This turns on reporting in the MQ log of the MQ object name that authorisation failed for (hard to believe that they omitted this by default!).

export EXTSHM=ON

This is something to do with shared memory usage on AIX

export AMQ_DUMP_NO_PROPERTIES=TRUE

Reduces the size of MQ dumps?

export AMQ_XA_ZOMBIE_EXPIRY=3600

Kill off zombie XA transactions after xx seconds (forthcoming PTF)