MQSeries.net :: View topic - Instances of MQI channels on MQSeries the server

MQSeries.net

Tech Exchange

Education

Certifications

Library

Info Center

SupportPacs

FAQÂ Â

Usergroups

RSS Feed - WebSphere MQ Support

RSS Feed - Message Broker Support

MQSeries.net Forum Index » General IBM MQ Support » Instances of MQI channels on MQSeries the server

Instances of MQI channels on MQSeries the server

« View previous topic :: View next topic »

Author

Message

KAKEZ

Posted: Thu Jan 16, 2003 1:16 am Post subject: Instances of MQI channels on MQSeries the server

Centurion

Joined: 10 Oct 2002
Posts: 117

Hi,

- situation is:
+ mqseries server on HPUX machine
+ numerous (about 400) mqseries clients going to that server

- question #1:normaly only one SVRCONN channel has to be defined on the server, right?

- question #2: are all the MQI channels running at the same time ? or only when the client application make an MQCONN? - not clear for me

- question #3: what is the process started on the server corresponding to a client connection? what conditions can this process be run as process or thread ? what is the best solution to get better performances?

thanks for reply
Jack

mrlinux

Posted: Thu Jan 16, 2003 5:04 am Post subject:

Grand Master

Joined: 14 Feb 2002
Posts: 1261
Location: Detroit,MI USA

1) Yes only one definition is needed.
2) The Server Conn channel will start running with the first connection and
continue in the run state until no one else is using that definition.
3) This depends on how you set up the listener on HPUX.
A) If you are using inetd/services files it will be a process called
amqcrsta for each connection

B) If you are using MQSeries v5.2 you can use the runmqlsr
command and this will create a spereate thread for each
channel.

C) Performance is another issue.
A) The inetd/services method is more reliable.
B) runmqlsr if this process dies all channels come down.
(I have seen this happen on HPUX)
I recommend option A.

D) If you are not using v5.2 or better then upgrade there were
lots of performance enhancements

E) If you are using persistent messages then you need to look
at the disk subsystem also .
_________________
Jeff

IBM Certified Developer MQSeries
IBM Certified Specialist MQSeries
IBM Certified Solutions Expert MQSeries

KAKEZ

Posted: Thu Jan 16, 2003 5:46 am Post subject:

Centurion

Joined: 10 Oct 2002
Posts: 117

thanks Jeff for your valuable information!
Jack

Display posts from previous:

Page 1 of 1

MQSeries.net Forum Index » General IBM MQ Support » Instances of MQI channels on MQSeries the server

Jump to:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

Protected by Anti-Spam ACP