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RP/MSQ 5.0 (VMS) - Timeouts received after large number of transactions (Doc ID 769426.1)

Last updated on NOVEMBER 09, 2020

Applies to:

Oracle MessageQ - Version 4.0 and later
Information in this document applies to any platform.
Information in this document applies to any platform

Goal

While upgrading from V4.0A to V5.0 on OpenVMS and UNIX systems, the following problem is found:

VMS to VMS on different machines using either TCPIP or DECNET, the sending and receiving processes timeout after a large number of correct transactions.

VMS to VMS on same machine - no problems.

UNIX to VMS using TCPIP, a timeout is received after a large number of messages are processed.

No errors appear in either the EVL or group log file.

This is NOT a problem with MessageQ for UNIX, V4.0A or MessageQ for OpenVMS, V4.0A.
With V4.0A, the processes continue on with no timeouts received

Test cases can be found on pecan:

              $1$DIA4:[W..]                                      (for V4.0A)
              $1$DIA4:[W..]                                 (for V5.0)

On <HOST_NAME>>:

             ../cases/mq/<>    (for V4.0A)
           ../cases/mq/<> (for V5.0)

On VMS, I turned on DMQ$DEBUG tracing, output is in the EVL log file
On UNIX, I turned on PAMS_TRACE, output is in the trace.* file.

Solution

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In this Document
Goal
Solution


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