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MQSeries.net Forum Index » General IBM MQ Support » PYMQI CONN_ID

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bobbee
PostPosted: Wed Mar 22, 2023 8:14 am    Post subject: PYMQI CONN_ID Reply with quote

Knight

Joined: 20 Sep 2001
Posts: 546
Location: Tampa
I issue an INQUIRE_CONN, I am filtering the CONNs, when I fiind the one I am looking for, I save off the conn_id into conn_id, I then issue the following (I am looking for the list of Object Names associated with this CONN_ID):

Code:
conn__handle_response=pcf.MQCMD_INQUIRE_CONNECTION({pymqi.CMQCFC.MQBACF_CONNECTION_ID:conn_id,
                     pymqi.CMQCFC.MQIACF_CONN_INFO_TYPE:pymqi.CMQCFC.MQIACF_CONN_INFO_HANDLE,pymqi.CMQCFC.MQIACF_CONNECTION_ATTRS:pymqi.CMQCFC.MQIACF_ALL})


I get not found.

If I replace conn-id with pymqi.ByteString('') I get all the handles. Buried in the list is the handle I am looking for with the conn-id I wold have specified. Is there some translation I am missing? Here is the PRINT of the returned conn-id value.

7006: b'AMQCBOBBEE \xfdb\x02d\x01\x1e[!',

I did a length on this and it is 24
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fjb_saper
PostPosted: Thu Mar 23, 2023 6:48 am    Post subject: Reply with quote

Grand High Poobah

Joined: 18 Nov 2003
Posts: 20768
Location: LI,NY
Looking at https://www.ibm.com/docs/en/ibm-mq/9.3?topic=formats-mqcmd-inquire-connection-inquire-connection , after specifying the connid,
shouldn't you ask for attributes all then specify the handle filter?
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bobbee
PostPosted: Thu Mar 23, 2023 7:07 am    Post subject: Reply with quote

Knight

Joined: 20 Sep 2001
Posts: 546
Location: Tampa
I was trying to use the CONN_ID so I could then issue a INQ_CONN (handle) to get to the specific queues opened for that CONN_ID. For the life of me I could not get it to work.

So I asked for ALL the handles (messy) converted the conn_id to string and just used an 'if' statement looking for a match.The customer I gave this to has 7k+ connections. I do limit the HANDLE query to only connections that exceed a certain LUW in seconds.
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hughson
PostPosted: Thu Mar 23, 2023 4:26 pm    Post subject: Re: PYMQI CONN_ID Reply with quote

Padawan

Joined: 09 May 2013
Posts: 1967
Location: Bay of Plenty, New Zealand
bobbee wrote:
I issue an INQUIRE_CONN, I am filtering the CONNs, when I fiind the one I am looking for, I save off the conn_id into conn_id, I then issue the following (I am looking for the list of Object Names associated with this CONN_ID):

Code:
conn__handle_response=pcf.MQCMD_INQUIRE_CONNECTION({pymqi.CMQCFC.MQBACF_CONNECTION_ID:conn_id,
                     pymqi.CMQCFC.MQIACF_CONN_INFO_TYPE:pymqi.CMQCFC.MQIACF_CONN_INFO_HANDLE,pymqi.CMQCFC.MQIACF_CONNECTION_ATTRS:pymqi.CMQCFC.MQIACF_ALL})


I've found that using this:-

Code:
args = {pymqi.CMQCFC.MQBACF_CONNECTION_ID: conn_id,
        pymqi.CMQCFC.MQIACF_CONNECTION_ATTRS: [pymqi.CMQCFC.MQIACF_ALL]}
response = pcf.MQCMD_INQUIRE_CONNECTION(args)


does not work, but using this:-

Code:
args= []
args.append(pymqi.CFBS(Parameter=pymqi.CMQCFC.MQBACF_CONNECTION_ID,String=conn_id))
args.append(pymqi.CFIL(Parameter=pymqi.CMQCFC.MQIACF_CONNECTION_ATTRS,Values=[pymqi.CMQCFC.MQIACF_ALL]))
response = pcf.MQCMD_INQUIRE_CONNECTION(args)


does. And yet they should be equivalent. This suggests a defect in PyMQI where it is not treating the MQBACF_CONNECTION_ID as a CFBS. When you force it to be a CFBS it works.

Cheers,
Morag
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bobbee
PostPosted: Mon Apr 03, 2023 1:39 pm    Post subject: Reply with quote

Knight

Joined: 20 Sep 2001
Posts: 546
Location: Tampa
I did try you solution:

Code:
                args= []
                args.append(pymqi.CFBS(Parameter=pymqi.CMQCFC.MQBACF_CONNECTION_ID,String=conn_id))
                args.append(pymqi.CFIL(Parameter=pymqi.CMQCFC.MQIACF_CONN_INFO_TYPE,Values=[pymqi.CMQCFC.MQIACF_CONN_INFO_HANDLE]))
                args.append(pymqi.CFIL(Parameter=pymqi.CMQCFC.MQIACF_CONNECTION_ATTRS,Values=[pymqi.CMQCFC.MQIACF_ALL]))
                try:
                conn_handle_response=pcf.MQCMD_INQUIRE_CONNECTION(args)


It REALLY does not like the value I got returned for Conn_id!!!!!!!!!

Code:
[mqm@fibbing1 scripts]$ python3 ./conn_luw.py  conn_luw.config.properties
Queue Manager =  BOBBEE
<class 'float'>
Traceback (most recent call last):
  File "./conn_luw.py", line 485, in <module>
    if conn_check(QueueMGR):
  File "./conn_luw.py", line 187, in conn_check
    conn_handle_response=pcf.MQCMD_INQUIRE_CONNECTION(args)
  File "/usr/local/lib64/python3.6/site-packages/pymqi-1.12.0-py3.6-linux-x86_64.egg/pymqi/__init__.py", line 2723, in __call__
    message = message + parameter.pack()
  File "/usr/local/lib64/python3.6/site-packages/pymqi-1.12.0-py3.6-linux-x86_64.egg/pymqi/__init__.py", line 309, in pack
    ensure_not_unicode(v)  # Python 3 bytes check
  File "/usr/local/lib64/python3.6/site-packages/pymqi-1.12.0-py3.6-linux-x86_64.egg/pymqi/__init__.py", line 177, in ensure_not_unicode
    raise TypeError(msg.format(value))
TypeError: Python 3 style string (unicode) found but not allowed here: `b'AMQCBOBBEE      \xfdb\x02d\x01>\x8a!'`. Convert to bytes.
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hughson
PostPosted: Mon Apr 03, 2023 1:50 pm    Post subject: Reply with quote

Padawan

Joined: 09 May 2013
Posts: 1967
Location: Bay of Plenty, New Zealand
Can you show us your code that sets the value of conn_id please? Is it bytes if you print out its type?

Cheers,
Morag
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bobbee
PostPosted: Mon Apr 03, 2023 3:46 pm    Post subject: Reply with quote

Knight

Joined: 20 Sep 2001
Posts: 546
Location: Tampa
conn_id = str(conn_info[pymqi.CMQCFC.MQBACF_CONNECTION_ID])
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hughson
PostPosted: Mon Apr 03, 2023 3:49 pm    Post subject: Reply with quote

Padawan

Joined: 09 May 2013
Posts: 1967
Location: Bay of Plenty, New Zealand
bobbee wrote:
conn_id = str(conn_info[pymqi.CMQCFC.MQBACF_CONNECTION_ID])


Don't turn it into a string - it's a bytes field.

The error even tells you that!

Code:
TypeError: Python 3 style string (unicode) found but not allowed here: `b'AMQCBOBBEE      \xfdb\x02d\x01>\x8a!'`. Convert to bytes.


My code just has:-
Code:
conn_id = conn_info[pymqi.CMQCFC.MQBACF_CONNECTION_ID]


Try it like that and see how you get on.

Cheers,
Morag
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bobbee
PostPosted: Mon Apr 03, 2023 3:51 pm    Post subject: Reply with quote

Knight

Joined: 20 Sep 2001
Posts: 546
Location: Tampa
Let me reset that, I was changing all sorts of things trying to get it to work. Missed resetting that.
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bobbee
PostPosted: Tue Apr 04, 2023 6:23 am    Post subject: Reply with quote

Knight

Joined: 20 Sep 2001
Posts: 546
Location: Tampa
Thanks M for catching my issue. That part of the code is working.
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hughson
PostPosted: Tue Apr 04, 2023 9:00 pm    Post subject: Reply with quote

Padawan

Joined: 09 May 2013
Posts: 1967
Location: Bay of Plenty, New Zealand


You're welcome.

M
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