RP/MSQ 4.0 (VMS)/MSQ 5.0 (VMS) - Lost secured messages
(Doc ID 777532.1)
Last updated on JANUARY 28, 2019
Applies to:Oracle MessageQ / MessageQ / 4.0,5.0
Information in this document applies to any platform
DESCRIPTION: When two processes in UNIX send messages simultaneously to one recipient in VMS, a few messages are getting lost. They have tried other combinations without loss of messages. The tests were performed using a small snippet of live source code from Astran, tra011034.c complemented by a small test program, dmg_sender.c. There is no error message in the logs or the application output. Customer first encountered the problem in their production environment where it happened a couple of times per month. They were able to reproduce the problem in their dev environment. Tests involve 2 senders, sending simultaneously to the same recipient. They always lose some messages (3-40) when sending 10000 messages simultaneously from each of 2 senders in UNIX to the same recipient VMS, but the other combinations are working fine: The 2 Senders Recipient Result VMS VMS (same server) OK VMS VMS (different server) OK UNIX UNIX (same server) OK VMS UNIX (different server) OK UNIX VMS (different server) Not OK (3-40 messages lost out of the 20000 sent) UNIX UNIX (different server) OK
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