Hi,

Does anyone have any experience with tuning message queues wrt performance boosters.
Our message queues get clogged when we turn on performance boosters for MPS session. We also use DDC.


Mum

What is the reason you think the message queues get clogged?

The master bshell tries to fill the queues to be sure that the slave can read the next instruction as soon as the previous has been finished. I don't see any problem with this.

Kind regards,
Dick

We know our message queues have overflowed, because our DDC transactions stop working. YOu can test this with the session tuddc1218m000.
If we run the MPS session in multiple bshell, we get the message "Cannot write 255 bytes to mailbox", and session hangs.


Mum

In that case I advise you to increase the MQ parameters in the kernel. The performance boosters each write a maximum number of bytes to the MQ. MAybe your DDC session is blowing up the MQ's instead of the performance boosters?

Hope this helps,
Dick

Originally posted by mumbai
We know our message queues have overflowed, because our DDC transactions stop working. YOu can test this with the session tuddc1218m000.
If we run the MPS session in multiple bshell, we get the message "Cannot write 255 bytes to mailbox", and session hangs.


Mum

Check out /etc/system parameters. The point is they shiuld suit boosters using session execution.

Appreciate it.

Mumbai