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MQSeries.net Forum Index » IBM MQ Installation/Configuration Support » OLD SERVER CONNECTIONS NOT CLEARING STAYING ACTIVE

OLD SERVER CONNECTIONS NOT CLEARING STAYING ACTIVE

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mqjim

Posted: Wed Jan 25, 2006 11:43 am Post subject: OLD SERVER CONNECTIONS NOT CLEARING STAYING ACTIVE

Novice

Joined: 01 Jul 2004
Posts: 22
Location: TEXAS

I am looking into an issue that is causing MQ to hit MAX ACTIVE and MAX CHANNELS. WE have MAX set to 400. What we are seeing is several old servercons 24 + hours old still tieing up channels about 194. I would have throught if the last message set was more that some value it would end. We are using WAS in this application.

If anyone has gone down this path some help or pointers would be apprecicated.

We recycled the WAS listeners applications and we still have the old connnections to WAS (194 connections).

This sounds like some parms are not set correctly to timeout the serverconnections channels. OR and applicaion is not closing the connections..... just guessing .....

Jim

vennela

Posted: Wed Jan 25, 2006 12:02 pm Post subject:

Jedi Knight

Joined: 11 Aug 2002
Posts: 4055
Location: Hyderabad, India

Search the forum for TCP KeepAlive AdoptNewMCA etc.

mqjim

Posted: Thu Jan 26, 2006 6:49 am Post subject: OLD SERVER CONNECTIONS NOT CLEARING STAYING ACTIVE

Novice

Joined: 01 Jul 2004
Posts: 22
Location: TEXAS

Question: About server connections

If an application does not break the conection or network does not then the server conection can run forever if the server conection is not stopped my doing an MQ command to stop it???

supect application that is creating connections and not reusing them before the issue another open. We are hitting max channels very quick on a stress test and only after a while during normal testing.

We tried to run a trace when we reach MAX channels only it appears too late to isolat the offending application. We will try to clear the channels and turn on JAVA TRACE on WAS and MQ trace on the QMGR and start the test over. To try to catch the application leaving old channels.

Question is:
If an application does not break the conection or network does not then the server conectin can run forever if the server connection is not stopped my doing an MQ command to stop it???

mvic

Posted: Thu Jan 26, 2006 7:11 am Post subject: Re: OLD SERVER CONNECTIONS NOT CLEARING STAYING ACTIVE

Jedi

Joined: 09 Mar 2004
Posts: 2080

mqjim wrote:

If an application does not break the conection or network does not then the server conectin can run forever if the server connection is not stopped my doing an MQ command to stop it???

Yes. That's what people want from client/server MQI channels isn't it?

mqjim

Posted: Thu Jan 26, 2006 10:32 am Post subject: OLD SERVER CONNECTIONS NOT CLEARING STAYING ACTIVE

Novice

Joined: 01 Jul 2004
Posts: 22
Location: TEXAS

late addition : WAS 6 has fix pac 5 out that indicates some problem with XA CLOSE and we are checking this out as we are using XA on this application and MQ is looking to be a victum (again)

Jim

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