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MQSeries.net Forum Index » IBM MQ Installation/Configuration Support » Need information about Channel

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manojkpradhan
PostPosted: Thu Feb 24, 2005 9:31 pm    Post subject: Need information about Channel Reply with quote

Apprentice

Joined: 15 Nov 2004
Posts: 25

Hi all!

I have arround 500 clients,which are connected to a single MQ Server.My Queue manager have the following parameters given below:

1>channel: SVRCONN, DSVRCONN
2>Queue :500 queues
According to two types of channel ,i have divided all 500 clients to be two parts.Arround 430 clients are using DSVRCONN channel and 70 clients are using SVRCONN channel.

I have also setted the maxchannel and maxActivechannel parametr to 512 in the properties.

The problem is that while a client is connecting to queue manager,after proccessing the application it should disconnect from the queue mqnager,but it doesn't.Like this the number of connection goes on increasing and crosses the limit of maxchannel and maxActiveChannels i.e. 512. After that the queue manager goes down.When I again restart the queue manager ,it will go on 3 to 4 days,after that the same result is happening.

If anyone have the solution for this and how can i tuned the queue manger,So that I can get a good performance,means what factor should i consider.Should i have to set the some value for keepAlive interval,Disconnect interval,HeartBeat Interval, if yes then what value should i have to set.
please revert me back.

My enviorment is like this:

IN WIN2000
MQ 5.3.0.7 CSD07

Thanks and Regards,
Manoj
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RAJESHRAMAKRISHNAN
PostPosted: Thu Feb 24, 2005 11:00 pm    Post subject: Reply with quote

Voyager

Joined: 01 May 2004
Posts: 96

Have you checked whether your clients are disconnecting the connection to the queue manager after the job is done?
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manojkpradhan
PostPosted: Mon Feb 28, 2005 8:45 pm    Post subject: Need information about Chhanel Reply with quote

Apprentice

Joined: 15 Nov 2004
Posts: 25

Hi RAJESHRAMAKRISHNAN,

I have checked the client programm.After conneting to the queue manager ,it is disconnecting properly from the queue manger. If you have another suggestion,please reply me.

Thanks and regards,
Manoj
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RAJESHRAMAKRISHNAN
PostPosted: Mon Feb 28, 2005 10:37 pm    Post subject: Reply with quote

Voyager

Joined: 01 May 2004
Posts: 96

Can you tell me what is DSVRCONN? Is it Default Server Connection Channel?
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jefflowrey
PostPosted: Tue Mar 01, 2005 5:32 am    Post subject: Re: Need information about Channel Reply with quote

Grand Poobah

Joined: 16 Oct 2002
Posts: 19981

manojkpradhan wrote:
The problem is that while a client is connecting to queue manager,after proccessing the application it should disconnect from the queue mqnager,but it doesn't


manojkpradhan wrote:
,it is disconnecting properly from the queue manger

Is it disconnecting, or not? The code may be there to disconnect, but it sounds like something is causing it not to be run... Does this client application have a GUI? Could users be closing the GUI without instructing the application to disconnect?

Have you looked at using MQSC to display the channel status to see the IP addresses that have the channel open?
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manojkpradhan
PostPosted: Tue Mar 01, 2005 5:53 am    Post subject: Need information about Channel Reply with quote

Apprentice

Joined: 15 Nov 2004
Posts: 25

Hi RAJESHRAMAKRISHNAN,

For your kind information,I have arround 500 clients,which are connected to a single MQ Server.My Queue manager have the following parameters given below:

1>channel: SVRCONN, DSVRCONN
2>Queue :500 queues


According to two types of channel ,i have divided all 500 clients to be two parts.Arround 430 clients are using DSVRCONN channel and 70 clients are using SVRCONN channel.

I have defined both the SVRCONN AND DSVRCONN server connection channel.

Thanks and Regards,
Manoj
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fjb_saper
PostPosted: Tue Mar 01, 2005 11:24 am    Post subject: Reply with quote

Grand High Poobah

Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY

Just to clarify:
You have 2 SVRCONN channels named SVRCONN and DSVRCONN ?

Usually we try not to name our channels after their type... but that's really a matter of taste.

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bower5932
PostPosted: Tue Mar 01, 2005 12:24 pm    Post subject: Reply with quote

Jedi Knight

Joined: 27 Aug 2001
Posts: 3023
Location: Dallas, TX, USA

You might also want to look at the output of netstat to see what the status of the connections is when you run out.
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