| Author |
Message |
 Topic: Resources used when increasing maxhands |
dtauzell
Replies: 0
Views: 2929
|
 Forum: Mainframe, CICS, TXSeries Posted: Fri May 06, 2011 7:57 am Subject: Resources used when increasing maxhands |
| I have an application that occasionally runs into 2017 errors. I'm going to look at the application to see if it can use handles differently. However, in the meantime I'd like to increase the MAXHAN ... |
| Topic: High CPU usage when two servers are processing messages |
dtauzell
Replies: 5
Views: 4607
|
Forum: General IBM MQ Support Posted: Thu Oct 22, 2009 6:15 am Subject: High CPU usage when two servers are processing messages |
Scenario:
Several queues, each with hundreds of thousands of messages on them.
Start up JBoss application server with MDBs that pull messages from those queues and then write to a database.
Mess ... |
| Topic: Per-connecion Queue Manager Resource Usage |
dtauzell
Replies: 1
Views: 3077
|
Forum: IBM MQ Installation/Configuration Support Posted: Mon Feb 02, 2009 11:33 am Subject: Per-connecion Queue Manager Resource Usage |
| Is there some formulary/method to determine what resources are used per MQ client connection. Our queue managers run on linux servers. I'd like to understand how many connections we can reasonably ex ... |
| Topic: Balancing of message to two MDBs |
dtauzell
Replies: 4
Views: 3663
|
Forum: IBM MQ Java / JMS Posted: Wed Dec 17, 2008 2:03 pm Subject: Balancing of message to two MDBs |
Thanks again.
-Dave |
| Topic: Balancing of message to two MDBs |
dtauzell
Replies: 4
Views: 3663
|
Forum: IBM MQ Java / JMS Posted: Wed Dec 17, 2008 1:58 pm Subject: Balancing of message to two MDBs |
Thanks for the info. That is what I suspected. Would MQ Cluster help me out in any way?
-Dave |
| Topic: Balancing of message to two MDBs |
dtauzell
Replies: 4
Views: 3663
|
Forum: IBM MQ Java / JMS Posted: Wed Dec 17, 2008 12:54 pm Subject: Balancing of message to two MDBs |
I have two applications servers. Each one has an MDB which listens on queue Q1 on queue manager QM1:
Server 1 Server 2
MDB MDB
-----------
|
... |
| Topic: Any example for load balance and failover |
dtauzell
Replies: 11
Views: 7836
|
Forum: IBM MQ Java / JMS Posted: Wed Dec 17, 2008 11:38 am Subject: Any example for load balance and failover |
I don't have code to give you, but what I did for JBOss/MQ was:
1. Have a way to notify a JMX bean that MQ seems dead
2. JMX bean then removes all JNDI entries for MQ and creates new ones for
... |
| Topic: ClassNotFoundException when call MQMessage readObject method |
dtauzell
Replies: 3
Views: 3232
|
Forum: IBM MQ Java / JMS Posted: Thu Dec 11, 2003 6:35 am Subject: ClassNotFoundException when call MQMessage readObject method |
Can you post the code and/or the stack trace?
-Dave |
| Topic: Temporarily disable MDBs from getting messages off the Queue |
dtauzell
Replies: 6
Views: 5234
|
Forum: IBM MQ Java / JMS Posted: Wed Dec 10, 2003 8:39 am Subject: Temporarily disable MDBs from getting messages off the Queue |
It looks like setting GET(DISABLED) on each queue will work for us. Both Weblogic and JBoss will try and re-connect every 10 seconds or so.
Thanks for your help. |
| Topic: 2059 errors with load test |
dtauzell
Replies: 5
Views: 3811
|
Forum: IBM MQ Java / JMS Posted: Wed Dec 10, 2003 8:20 am Subject: 2059 errors with load test |
| We had serious issues like this when our server was under heavy load. We fixed this by creating a pool of connections that is shared by the whole appserver. The application had to be changed to chec ... |
| Topic: ClassNotFoundException when call MQMessage readObject method |
dtauzell
Replies: 3
Views: 3232
|
Forum: IBM MQ Java / JMS Posted: Wed Dec 10, 2003 8:16 am Subject: ClassNotFoundException when call MQMessage readObject method |
Usually this is because the class of the object (Business in your case) is not on your local classpath so the readObject fails while trying to de-serialize the object (even when you don't cast it).
... |
| Topic: long delay creating an instance of MQQueueManager |
dtauzell
Replies: 1
Views: 1965
|
Forum: IBM MQ Java / JMS Posted: Wed Dec 10, 2003 8:13 am Subject: long delay creating an instance of MQQueueManager |
| First, I would suggest creating a systemwide pool instead of creating instances each time; if that is possible. We did that and it made a huge performance difference (although we never saw times in t ... |
| Topic: Temporarily disable MDBs from getting messages off the Queue |
dtauzell
Replies: 6
Views: 5234
|
Forum: IBM MQ Java / JMS Posted: Fri Nov 07, 2003 6:34 am Subject: Temporarily disable MDBs from getting messages off the Queue |
| That is what we will probably do. However, since we have a bunch of application servers with MDBs listening it would be easier to just disable something on the MQ side. |
| Topic: Temporarily disable MDBs from getting messages off the Queue |
dtauzell
Replies: 6
Views: 5234
|
Forum: IBM MQ Java / JMS Posted: Thu Nov 06, 2003 12:17 pm Subject: Temporarily disable MDBs from getting messages off the Queue |
I would like to temporarily prevent a bunch of MDBs from getting messages off the queue. At the same time there will be other processing putting messaages on the queue.
Is there any way to do th ... |
| Topic: Disable gets to a particular host |
dtauzell
Replies: 1
Views: 1834
|
Forum: IBM MQ Java / JMS Posted: Thu Jul 24, 2003 11:06 am Subject: Disable gets to a particular host |
| I'd like to tell MQ to quit sending messages to a particular host. I want to do this while I re-deploy some apps. |
