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| RDQM : Floating IP vs Non Floating IP |
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| vb1987 |
 Posted: Tue Mar 29, 2022 5:38 am Post subject: RDQM : Floating IP vs Non Floating IP |
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Newbie
Joined: 29 Mar 2022
Posts: 3
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Hello All,
I have searched a lot and couldn't find a direct answer to my question.
if we don't create a floating IP for RDQM, how does the failover work in case of RDQM HA.
How do we configure the CONNAME parameter at client side, so that it knows where to connect.
I tried CONNAME(IP1(port),IP2(port),IP3(port)). it works for channels like SDR-RCVR pairs between QMGRS working in RDQM mode.
But an app(Microsoft Biztalk in my case) using MQ Client with the same connection string is unable to parse the 3rd IP and reads upto only 2 IP strings.
Please let me know, if you need more information from my end.
My apologies in advance if I have missed something or my question is not upto the forum standards.
Thanks |
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| bruce2359 |
| Posted: Tue Mar 29, 2022 8:47 am Post subject: Re: RDQM : Floating IP vs Non Floating IP |
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Poobah
Joined: 05 Jan 2008
Posts: 9396
Location: US: west coast, almost. Otherwise, enroute.
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| vb1987 wrote: |
| But an app(Microsoft Biztalk in my case) using MQ Client with the same connection string is unable to parse the 3rd IP and reads upto only 2 IP strings. |
What error message or messages?
_________________
I like deadlines. I like to wave as they pass by.
ב''ה
Lex Orandi, Lex Credendi, Lex Vivendi. As we Worship, So we Believe, So we Live. |
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| vb1987 |
| Posted: Tue Mar 29, 2022 10:49 pm Post subject: |
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Newbie
Joined: 29 Mar 2022
Posts: 3
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There are no error messages at BT server end, also nothing logged in AMQERR logs at MQ server side..
The situation is.
I created a QMGR QM1 on IP1 as primary Node.
then I manually failed QM1 to IP2, it worked fine, Biztalk was able to connect to the SVRCONN channel on IP2.
in logs it mentioned IP1 not available and then successfully connected to IP2 after that.
But when I failed it over to IP3. Biztalk records that IP1 and IP2 is not available, and then it doesn't mention anything related to IP3 in the logs at all. and connection is not established.
+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
The current Connection String in Biztalk is
IP1(port),IP2(port),IP3(port) << in this string BT is able to connect to IP1 and IP2, and successfully GET messages from the queues.
if I change it to something like
IP2(port),IP3(port),IP1(port) << During this, it connects only to IP2 and IP3 and ignores IP1.
in any other combination it is able to connect to first 2 IPs only.
I have tried it while Biztalk is configured to use .net redistributable client as well as IBM MQ Client for windows installed on server.
+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
I used the following method to manually switch the nodes.
rdqmadm -p -m QM1 -n <IP1|IP2|IP3>
Also the SVRCONN has a CLNTCONN channel as well defined as below.
DEFINE CHANNEL(QM.SVRCHL) CHLTYPE(CLNTCONN) CONNAME('IP1(port),IP2(port),IP3(port)') QMNAME(QM1)
+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
The Biztalk server and All 3 MQ servers are in same domain, and there are no firewall or any connectivity issues among them, they are able to connect or ping each other freely.
+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
Also, is it the correct way to define the connection string with three IPs at client side?
I know that it works fine with 2 IPs.
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| hughson |
| Posted: Wed Mar 30, 2022 12:33 am Post subject: |
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Padawan
Joined: 09 May 2013
Posts: 1914
Location: Bay of Plenty, New Zealand
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An alternate method of supplying the three IP(PORT) possibilities, is to use a CCDT and define three channels in it. These days, you can use a JSON format CCDT and the three channel definitions can have the same names.
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Morag Hughson @MoragHughson
IBM MQ Technical Education Specialist
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| vb1987 |
| Posted: Wed Mar 30, 2022 8:30 pm Post subject: |
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Newbie
Joined: 29 Mar 2022
Posts: 3
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Hi Morag,
Thank you for your valuable suggestion, I am trying the CCDT method currently.
But while using CCDT with Biztalk, the connectivity is not working, I am trying to troubleshoot the same, I will update you with my findings for the same. |
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