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| sebastia |
 Posted: Mon Nov 12, 2012 3:09 am Post subject: MQTT error - AMQXR0010E |
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Grand Master
Joined: 07 Oct 2004
Posts: 1003
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Hi, coleagues - I have a MQTT question, and find to specific forum for this product. Guess it is some kind on "broker", isn't it ?
I am sending a MQTT_PING() from Rexx to a MQ Telemetry server.
In "/var/mqm/qmgrs/MQXR_SAMPLE_QM/errors/mqxr.log ... I find
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AMQXR0010E: An invalid ClientIdentifier REXX pub client was received from ''/9.137.164.151'' in an MQTT CONNECT packet on channel PlainText.
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I have the solution for this problem, seting ClientIdentifier properly,
but I have found no PDF, no URL where this error is documented.
Have installed MQ v7.5 local documentacion - search(AMQXR0010E) gives 0 (zero) hits.
Google ( "AMQXR0010E" ) gives zero results ...
>>> Where are "AMQX" error documented ?
Sebastian. |
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| lancelotlinc |
| Posted: Mon Nov 12, 2012 6:26 am Post subject: |
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Jedi Knight
Joined: 22 Mar 2010
Posts: 4941
Location: Bloomington, IL USA
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There are other log messages before and after this one. Please post them, as they contain relevant information.
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| sebastia |
| Posted: Mon Nov 12, 2012 6:32 am Post subject: |
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Grand Master
Joined: 07 Oct 2004
Posts: 1003
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no, mr Lancelot, there are not
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--------------------------------------------------------------------
November 9, 2012 5:06:20 PM CET[main] com.ibm.mq.MQXRService.MQXRService
AMQXR0015I: MQXR Service started successfully (1 channels running, 0 channels stopped)
--------------------------------------------------------------------
November 9, 2012 5:07:53 PM CET[ServerWorker0] com.ibm.mq.MQXRService.MQTTServerSessionV3
AMQXR0010E: An invalid ClientIdentifier REXX pub client was received from ''/9.137.164.151'' in an MQTT CONNECT packet on channel PlainText.
--------------------------------------------------------------------
November 9, 2012 3:24:24 PM CET[ServerWorker0] com.ibm.mq.MQXRService.MQTTServerSessionV3
AMQXR0010E: An invalid ClientIdentifier REXX pub client was received from ''/9.137.164.151'' in an MQTT CONNECT packet on channel PlainText.
--------------------------------------------------------------------
November 9, 2012 3:25:07 PM CET[ServerWorker0] com.ibm.mq.MQXRService.MQTTServerSessionV3
AMQXR0010E: An invalid ClientIdentifier REXX pub client was received from ''/9.137.164.151'' in an MQTT CONNECT packet on channel PlainText.
--------------------------------------------------------------------
November 9, 2012 3:25:08 PM CET[ServerWorker0] com.ibm.mq.MQXRService.MQTTServerSessionV3
AMQXR0010E: An invalid ClientIdentifier REXX pub client was received from ''/9.137.164.151'' in an MQTT CONNECT packet on channel PlainText.
--------------------------------------------------------------------
November 9, 2012 3:25:09 PM CET[ServerWorker0] com.ibm.mq.MQXRService.MQTTServerSessionV3
AMQXR0010E: An invalid ClientIdentifier REXX pub client was received from ''/9.137.164.151'' in an MQTT CONNECT packet on channel PlainText.
--------------------------------------------------------------------
November 9, 2012 3:25:10 PM CET[ServerWorker0] com.ibm.mq.MQXRService.MQTTServerSessionV3
AMQXR0010E: An invalid ClientIdentifier REXX pub client was received from ''/9.137.164.151'' in an MQTT CONNECT packet on channel PlainText.
--------------------------------------------------------------------
November 9, 2012 3:25:11 PM CET[ServerWorker0] com.ibm.mq.MQXRService.MQTTServerSessionV3
AMQXR0010E: An invalid ClientIdentifier REXX pub client was received from ''/9.137.164.151'' in an MQTT CONNECT packet on channel PlainText.
--------------------------------------------------------------------
November 9, 2012 3:25:14 PM CET[ServerWorker0] com.ibm.mq.MQXRService.MQTTServerSessionV3
AMQXR0010E: An invalid ClientIdentifier REXX pub client was received from ''/9.137.164.151'' in an MQTT CONNECT packet on channel PlainText.
--------------------------------------------------------------------
November 9, 2012 3:25:15 PM CET[ServerWorker0] com.ibm.mq.MQXRService.MQTTServerSessionV3
AMQXR0010E: An invalid ClientIdentifier REXX pub client was received from ''/9.137.164.151'' in an MQTT CONNECT packet on channel PlainText.
--------------------------------------------------------------------
November 12, 2012 12:59:20 PM CET[ServerWorker0] com.ibm.mq.MQXRService.MQTTServerSessionV3
AMQXR0010E: An invalid ClientIdentifier REXX sub client was received from ''/9.137.165.197'' in an MQTT CONNECT packet on channel PlainText.
--------------------------------------------------------------------
November 12, 2012 1:04:15 PM CET[ServerWorker0] com.ibm.mq.MQXRService.MQTTServerContext
AMQXR0021W: Client ''MQTTV3Sample'' at network address ''/9.137.165.197'' disconnected abnormally
with exception ''AMQCO1007E: Connection ''/9.137.165.197'' did not send or receive data for ''45000'' milliseconds and has been closed. ''.
--------------------------------------------------------------------
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| lancelotlinc |
| Posted: Mon Nov 12, 2012 6:35 am Post subject: |
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Jedi Knight
Joined: 22 Mar 2010
Posts: 4941
Location: Bloomington, IL USA
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| sebastia |
| Posted: Mon Nov 12, 2012 7:00 am Post subject: |
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Grand Master
Joined: 07 Oct 2004
Posts: 1003
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Good question, mr Lancelot.
While I google for the concept, I am sorry to ask ...
... what is the "clean session flag" ?
.... and/or .... How do I display it ?
Never seen one yet .. ( )
Sebastian. |
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| lancelotlinc |
| Posted: Mon Nov 12, 2012 7:05 am Post subject: |
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Jedi Knight
Joined: 22 Mar 2010
Posts: 4941
Location: Bloomington, IL USA
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MQTT clients using a random id that set clean session set to false meaning a durable (persistent) session will be unable to reconnect using the same id. This means that subsequent attempts to access persistent subscriptions on that server can never be fulfilled.
Here is the InfoCentre page that talks about clean sessions:
http://publib.boulder.ibm.com/infocenter/wmqv7/v7r1/topic/com.ibm.mq.doc/tt60370_.htm
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| You must set the cleanSession mode before connecting; the mode lasts for the whole session. To change its setting, you must disconnect and reconnect the client. If you change modes from using cleanSession=false to cleanSession=true, all previous subscriptions for the client, and any publications that have not been received, are discarded. |
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| sebastia |
| Posted: Mon Nov 12, 2012 7:07 am Post subject: |
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Grand Master
Joined: 07 Oct 2004
Posts: 1003
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I have the protocol specs, and it is obviuos to me it is better to use "1" as this flag ...
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if set (1), then the server must discard any previously maintained information about the client and treat the connection as "clean".
The server must also discard any state when the client disconnects.
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| sebastia |
| Posted: Mon Nov 12, 2012 7:08 am Post subject: |
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Grand Master
Joined: 07 Oct 2004
Posts: 1003
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.... and by defaults, I was using "0" ...
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| If not set (0), then the server must store the subscriptions of the client after it disconnects |
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| sebastia |
| Posted: Mon Nov 12, 2012 7:40 am Post subject: |
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Grand Master
Joined: 07 Oct 2004
Posts: 1003
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The error comes from the "id" format.
If I use "id = 'REXX pub client'", as provided by mr Dougie Lawson at
>>>https://github.com/DougieLawson/REXX_MQTT
then I get the indicated error (AMQXR0010E).
If I replace the "blank space(s)" between "rexx" and "pub" and "client" by an underscore, the connect goes fine ...
Same error if id is "REXX-pub-client" ...
By the way - it only happens when my rexx client goes to WMQ v7.5 MQTT.
If I point to "m2m.eclipse.org", all goes fine.
Sebastian.
PD.- by the way, my problem is not the error,
but THE DOCUMENTATION OF MQTT errors ... |
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| lancelotlinc |
| Posted: Mon Nov 12, 2012 7:45 am Post subject: |
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Jedi Knight
Joined: 22 Mar 2010
Posts: 4941
Location: Bloomington, IL USA
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| sebastia |
| Posted: Mon Nov 12, 2012 8:19 am Post subject: |
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Grand Master
Joined: 07 Oct 2004
Posts: 1003
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Thanks, mr Lancelot - it is good to have that page.
But still I am missing "AMQXR0010E" explanation .... jejeje
It is in the MQXR.LOG file !
The good old MQ manuals always had ALL the error codes.
Hope MQTT will follow that line in the future !
Cheers. Sebastian. |
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| lancelotlinc |
| Posted: Mon Nov 12, 2012 8:26 am Post subject: |
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Jedi Knight
Joined: 22 Mar 2010
Posts: 4941
Location: Bloomington, IL USA
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| sebastia wrote: |
| But still I am missing "AMQXR0010E" explanation .... jejeje |
What I am saying is, you need more than the log. The log will tell you some things, but you also need the REASON CODE which you get when you write a good error handler.
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| andypiper |
| Posted: Tue Nov 13, 2012 11:56 am Post subject: |
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Acolyte
Joined: 29 Oct 2001
Posts: 59
Location: London
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So I believe there is a "correct" forum for MQTT / Telemetry questions ... although it sounds like you are using WMQ 7.5 so maybe the core WMQ forum would be better. MQTT support was moved out of WMB some time ago.
The "space in client ID" issue is an interesting one. Not sure whether MQXR in MQ or mosquitto (m2m.eclipse.org) is misbehaving here. You might want to talk to the protocol folks via the MQTT.org mailing list to check.
Last edited by andypiper on Wed Nov 14, 2012 8:01 am; edited 1 time in total |
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| mqjeff |
| Posted: Tue Nov 13, 2012 12:10 pm Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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Every frustration with the documentation should be followed up by clicking on the 'feedback' link at the bottom of every page.
well, unless you're reading the PDfs on the airplane at 30,000 feet. In that case, when you're unhappy with the documentation, the only choice is to throw your tablet or laptop at the flight attendant and then go to jail for 10 years. |
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| sebastia |
| Posted: Fri Nov 16, 2012 2:47 am Post subject: |
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Grand Master
Joined: 07 Oct 2004
Posts: 1003
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Andy -
1) thanks for the pointer to the WMQ Telemetry forum for future questions !
2) "space in ID" - I shall ask in MQTT.org mailing list, no problem.
Sebastian. |
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