| Author |
Message |
 Topic: JMS Auto reconnect with CCDT that's has Multiple QManagers |
paulau
Replies: 29
Views: 73871
|
 Forum: IBM MQ Java / JMS Posted: Thu Sep 26, 2019 7:20 pm Subject: JMS Auto reconnect with CCDT that's has Multiple QManagers |
When your Java application code is making a call to MQ, I would expect that the JMS layer knows instantly that the connection is down and starts the reconnect process immediately.
Your comment ab ... |
| Topic: Is it safe to load balance JMS sessions at the TCP level? |
paulau
Replies: 11
Views: 28635
|
Forum: IBM MQ Java / JMS Posted: Wed Sep 25, 2019 3:18 pm Subject: Is it safe to load balance JMS sessions at the TCP level? |
I got a lot of the Spring details from this blog post: http://tmielke.blogspot.com/2012/03/camel-jms-with-transactions-lessons.html
There are other relevant posts but thats the most comprehensive ... |
| Topic: Is it safe to load balance JMS sessions at the TCP level? |
paulau
Replies: 11
Views: 28635
|
Forum: IBM MQ Java / JMS Posted: Tue Sep 24, 2019 6:15 pm Subject: Is it safe to load balance JMS sessions at the TCP level? |
Hi Glen,
Just to clarify the maths. There are 4 v8 Solaris queue managers that I think can do cross site failover in a fairy clumsy way. Currently each qm has a svrconn limit of 600 however the con ... |
| Topic: Has anybody been using the JMS support in Uniform Clusters? |
paulau
Replies: 0
Views: 12628
|
Forum: IBM MQ Java / JMS Posted: Mon Sep 23, 2019 10:00 pm Subject: Has anybody been using the JMS support in Uniform Clusters? |
Hi,
We have just done a POC with Camel/SpringBoot micro services connecting over JMS to MQ running in a container. Is anyone else actively looking at this feature?
Our initial results were very ... |
| Topic: Is it safe to load balance JMS sessions at the TCP level? |
paulau
Replies: 11
Views: 28635
|
Forum: IBM MQ Java / JMS Posted: Mon Sep 23, 2019 6:26 pm Subject: Is it safe to load balance JMS sessions at the TCP level? |
| We were able to take a step back and try to adopt a broader view of the issues and options for Camel/SpringBoot connections to MQ. The 9.1.3 Uniform Cluster support for JMS encouraged us to do a POC. ... |
| Topic: Is it safe to load balance JMS sessions at the TCP level? |
paulau
Replies: 11
Views: 28635
|
Forum: IBM MQ Java / JMS Posted: Mon Aug 12, 2019 4:25 pm Subject: Is it safe to load balance JMS sessions at the TCP level? |
The queue managers are V8 on Solaris and they currently have shared conversations set to 10. Agree the target should be 1 as its proven to be compatible and is more efficient than 10.
The downside ... |
| Topic: Is it safe to load balance JMS sessions at the TCP level? |
paulau
Replies: 11
Views: 28635
|
Forum: IBM MQ Java / JMS Posted: Tue Jul 30, 2019 3:46 pm Subject: Is it safe to load balance JMS sessions at the TCP level? |
| Well after checking with the development team it turns out that they are NOT using XA for transaction management. I think they may have started out down the XA path a couple of years ago and then remo ... |
| Topic: Is it safe to load balance JMS sessions at the TCP level? |
paulau
Replies: 11
Views: 28635
|
Forum: IBM MQ Java / JMS Posted: Thu Jul 25, 2019 10:38 pm Subject: Is it safe to load balance JMS sessions at the TCP level? |
Hi Morag, Thanks for the response.
They currently use XA to save state between steps in the payments process so thats bad news. Understand that if XA thinks there are things in the LUW that the q ... |
| Topic: Is it safe to load balance JMS sessions at the TCP level? |
paulau
Replies: 11
Views: 28635
|
Forum: IBM MQ Java / JMS Posted: Wed Jul 24, 2019 4:40 pm Subject: Is it safe to load balance JMS sessions at the TCP level? |
Hi,
I have been asked to look at the MQ integration approach for a Camel/Spring/JMS over MQ application thats running on OpenShift containers.
One of the requirements is to support connections t ... |
| Topic: CHLAUTH question |
paulau
Replies: 4
Views: 7303
|
Forum: General IBM MQ Support Posted: Wed Aug 15, 2018 9:01 pm Subject: CHLAUTH question |
Hi Mangesh,
I tried a rule like that but it changes the mqmd.userid and that means that the transaction will be run on z/OS in CICS under the changed userid. We need the clients id to flow thought ... |
| Topic: MQ security question |
paulau
Replies: 0
Views: 3394
|
Forum: General IBM MQ Support Posted: Thu May 03, 2018 3:34 pm Subject: MQ security question |
Hi,
I am upgrading a queue manager that supports 2000+ client connections from remote desktops. There is no central LDAP and the desktop users are not defined on the MQ server.
The existing serv ... |
| Topic: CHLAUTH question |
paulau
Replies: 4
Views: 7303
|
Forum: General IBM MQ Support Posted: Wed May 02, 2018 2:12 am Subject: CHLAUTH question |
Hi,
We have 2000 desktop users that send messages with their login ID in MDMD.Useridentifier. The MQMD.Useridentifier is used to authorise the transactions on CICS.
There is no central LDAP capabil ... |
| Topic: Integration Server limits on RHEL 7 |
paulau
Replies: 13
Views: 16096
|
Forum: WebSphere Message Broker (ACE) Support Posted: Mon Mar 12, 2018 2:29 pm Subject: Integration Server limits on RHEL 7 |
Hi abhi_thri,
Yes we eventually got an empty Integration Node with 42 Servers running on a 32GB machine. There were at least 5 mandatory changes that we made to get the product running so doubt the ... |
| Topic: Integration Server limits on RHEL 7 |
paulau
Replies: 13
Views: 16096
|
Forum: WebSphere Message Broker (ACE) Support Posted: Thu Mar 01, 2018 5:31 pm Subject: Integration Server limits on RHEL 7 |
Hi Glenn & abhi_thri, I have applied most of your tuning recommendations and no material improvement.
These mqconfig results taken during the failure test highlight most the the settings that ... |
| Topic: Integration Server limits on RHEL 7 |
paulau
Replies: 13
Views: 16096
|
Forum: WebSphere Message Broker (ACE) Support Posted: Wed Feb 28, 2018 12:10 pm Subject: Integration Server limits on RHEL 7 |
Thanks for the tuning responses. Will try them out over the next few days. Yesterdays changes recommended by IBM didn't work so less than half a dozen left to try.
It is a bit disappointing that IB ... |
