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| wouter |
 Posted: Tue Nov 06, 2001 5:51 am Post subject: |
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Newbie
Joined: 24 Oct 2001
Posts: 6
Location: The Netherlands
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Hi,
Iám using v5.2 and i setup a cluster.
just for checking with the other parties i use a channel. When i start the channel the ip of the conname is gone what can be the problem.
AMQ8417: Display Channel Status details.
CHANNEL(TO.QMFI01) XMITQ(SYSTEM.CLUSTER.TRANS
CONNAME() CURRENT
CHLTYPE(CLUSSDR) STATUS(RETRYING)
regards,
Wouter Fleers
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| bduncan |
| Posted: Tue Nov 06, 2001 10:18 am Post subject: |
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Padawan
Joined: 11 Apr 2001
Posts: 1554
Location: Silicon Valley
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When you define the channel what are you putting in the CONNAME? An IP, or a DNS name?
_________________
Brandon Duncan
IBM Certified MQSeries Specialist
MQSeries.net forum moderator |
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| wouter |
| Posted: Thu Nov 08, 2001 12:58 am Post subject: |
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Newbie
Joined: 24 Oct 2001
Posts: 6
Location: The Netherlands
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I use an IP.
would it e better to use DNS?
regrads,
wouter |
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| GMcCarthy |
| Posted: Thu Nov 08, 2001 6:25 am Post subject: |
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Centurion
Joined: 06 Nov 2001
Posts: 113
Location: Melville NY
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Hello...
I use the same configuration. I cannot recreate your problem here. Could you post your object definition?
Regards,
_________________
Regards,
Gina
IBM Certified MQSeries Specialist |
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| bduncan |
| Posted: Thu Nov 08, 2001 10:47 am Post subject: |
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Padawan
Joined: 11 Apr 2001
Posts: 1554
Location: Silicon Valley
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Well, it's standard practice to use DNS names, because that way if the IP addresses of your machines change, you don't have to reconfigure everything. However, if your DNS server goes down, so does the channels. But it's pretty rare that you lose DNS (especially if you have multiple servers) so I would use machine names instead of IPs. Keep in mind though that hostnames are case sensitive, and MQSeries upper cases everything you enter unless you stick it in quotes, so if you have a machine called bubba, you want: CONNAME('bubba')
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Brandon Duncan
IBM Certified MQSeries Specialist
MQSeries.net forum moderator |
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| EddieA |
| Posted: Thu Nov 08, 2001 11:27 am Post subject: |
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Jedi
Joined: 28 Jun 2001
Posts: 2453
Location: Los Angeles
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Brandon,
Sorry, I have to disagree.
Hostnames, within the TCP/IP specifications (RFPs ???) are NOT case sensitive. If you do a lookup, or ping, on bubba, BUBBA, or bUBbA you'll get the same result.
Cheers,
_________________
Eddie Atherton
IBM Certified Solution Developer - WebSphere Message Broker V6.1
IBM Certified Solution Developer - WebSphere Message Broker V7.0 |
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| bduncan |
| Posted: Thu Nov 08, 2001 11:53 am Post subject: |
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Padawan
Joined: 11 Apr 2001
Posts: 1554
Location: Silicon Valley
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Eddie, no need to be "sorry" to disagree with me, go right ahead - it proves that people are actually reading my responses 
But yes, that was a slip on my part. I'm always warning people about the case sensitivity of MQSeries object names (i.e., define a queue named bubba without the quotes and then issue an MQOPEN call with bubba); I guess I got a little overzealous and forgot that hostnames indeed don't apply...
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Brandon Duncan
IBM Certified MQSeries Specialist
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| wouter |
| Posted: Thu Nov 08, 2001 12:16 pm Post subject: |
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Newbie
Joined: 24 Oct 2001
Posts: 6
Location: The Netherlands
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Guys,
Thanx for all the response but what is best prectise in this case IP or DNS?
And will this save the problem of not being able to send but only to receive messages?
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| EddieA |
| Posted: Thu Nov 08, 2001 12:44 pm Post subject: |
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Jedi
Joined: 28 Jun 2001
Posts: 2453
Location: Los Angeles
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Wouter,
I would agree with Brandon. Use DNS names as they are (usually) less volatile than IPs. But in the end, it all comes down to your (or your customers) environment.
Just make sure what you specify resolves correctly. (Fully qualified name vs hostname within domain). One other poster in these forums got caught out when he specified a ConName for a Cluster Receiver channel that wasn't resolvable when it was distributed to another machine in the cluster.
BTW Did you ever get the original question resolved. What happened to the ConName.
Cheers,
_________________
Eddie Atherton
IBM Certified Solution Developer - WebSphere Message Broker V6.1
IBM Certified Solution Developer - WebSphere Message Broker V7.0 |
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| middlewareonline |
| Posted: Wed Nov 28, 2001 2:06 pm Post subject: |
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Acolyte
Joined: 09 Jul 2001
Posts: 73
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Also, if you plan to have disaster recovery built-in hten it is always desirable to have DNS, so that failover can take place.
Rajesh
MiddlewareOnline.COM
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