Improve queue Prioritization

Dear experts,
we have scenarios with different priority on our SAP PI 7.0 system.
1. Async: File to IDoc (low priority)
2. Async: IDoc to File (high priority)
The scenarios are configured in SXMB_ADM ("Configure Filter for Queue Prioritizazion") and the messages are attached to the correct queues. However, when there are lots of messages in the low priority queue, also high priority messages get delayed. They are still processed much faster than low priority messages, but sometimes there is a delay of some minutes. Please note, that I'm talking about delays in Integration Engine NOT Adapter Engine.
Is it possible to configure a high priority queue, so that messages are always processed directly?
Best regards,
David

Thank you for your answer.
The following queues are configured:
Queue name               Type Mode Max. Runtime Attempts Pause
XBQ1*                     R    D       120         30     300
XBQ9*                     R    D        30         30     300
XBQA*                     R    D       120         30     300
XBQB*                     R    D        60         30     300
XBQI*                     R    D        60         30     300
XBQO*                     R    D        60         30     300
XBQX*                     R    D       120         30     300
XBQY*                     R    D        30         30     300
XBQZ*                     R    D        30         30     300
XBT1*                     R    D       120         30     300
XBT9*                     R    D        30         30     300
XBTA*                     R    D       120         30     300
XBTB*                     R    D        60         30     300
XBTI*                     R    D        60         30     300
XBTJ*                     R    D        60         30     300
XBTL*                     R    D        60         30     300
XBTM*                     R    D        60         30     300
XBTO*                     R    D        60         30     300
XBTX*                     R    D       120         30     300
XBTY*                     R    D        30         30     300
XBTZ*                     R    D        30         30     300
High priority messages get processed with Queue XBTA and low priority with XBTZ.
We increased the polling interval, but we still have the problem, as the files are very big.
Do you have any ideas? Thanks in advance.

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Hi,
Please find the link for "How To prioritize XI messages in queues" below.
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/59e837d3-0201-0010-c096-dc1869733413.reward me if useful. Let me know if ur issue not resolved.
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>>He have an Interfase but we can´t see it in queue prioritiaztion and in transaction sxmb_moni.
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hi,
Check these help..
Eo/EOIO?BE - Queue - ? - /people/sap.india5/blog/2006/01/03/xi-asynchronous-message-processing-understanding-xi-queues-part-i
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/people/venkat.donela/blog/2005/06/09/introduction-to-queues-in-message-mapping
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Hi Tim,
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Hi,
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https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/20bb9649-e86e-2910-7aa9-88ed4972a5f6
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Okay ;o)
So transfering IDocs via qRFC between systems might be an option for you. But this just guarantees that for example EOIO messages do not overtake one another even during transfer from one system to another.
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I think this is what its happening....
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from the sample in my SXMB_MONI production
http://i.imgur.com/JuU0L.png
Atleast from the screen shot this what I guess
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hi,
i found some links, hope those helps you
http://www.sdn.sap.com/irj/scn/index?rid=/library/uuid/20bb9649-e86e-2910-7aa9-88ed4972a5f6
http://wiki.sdn.sap.com/wiki/display/XI/DifferencebetweenSXMB_ADMandSXMB_ADMINISTRATION
Queue prioritization
** Queue Prioritization in SXMB_ADM - Tuning Param - Whats the difference
Also try searach in ussing by "queue prioritization" in SDN you will find many links
Thanks
Rodrigo P.
Edited by: Rodrigo Alejandro Pertierra on Jun 25, 2010 10:25 AM

Reg: Dynamic Queue name

Hello Experts,
Although I am not a PI expert i would like to ask ,
Can I have Dynamic Queue name generation on the basis of the payload which i am receiving
Quality of service my be any EO or EOIO .
For example My pay load stream my contain Data for Purchase Req. Creation / and change its a known fact that Creation payload should come first and then change so my Question is can i have my queue name on basis of the Document which i am processing ?

I dont thnik this is possible in PI for generating queue names based on payload. As Queue should be utilized proper way and based on the PI resources like work processes,.
But for your scenario, you can use EOIO and specify queue name accordingly for both scenarios.
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--Divyesh

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hi all
i am doing file to idoc scenario and i want to use queue proceesing option can anybody tell me the entire process regarding queue processing.

Hi KUNAAL MASIH ,
U can use a Prioritized queue for urgent messages that must be processed immediately
These r the details Queues Prioritization:
Queues for Prioritized Message Processing
http://help.sap.com/saphelp_nw04/helpdata/en/04/827440c36ed562e10000000a155106/content.htm
Queue prioritization for XI processing queues uses a built in feature of qRFC. By specifying the maximum processing time for a queue, u can define how much processing time a specific queue will get(this works like a time-scheduling procedure, time slicing). U can use this feature to add queues for high-priority and low-priority messages(for inbound and outbound processing). These queues are then named, for example XBT1* or XBT9* for inbound EO processing and XBTA, XBTZ for outbound EO processing.
This function uses the message filter concept and can be configured in transaction SXMB_ADM. U can define message filters for specific message attributes such as sender/reciever service, interface and so on. A filter can also be dependent on the message size.
This function can also be useful in situations where a queue backlog needs to be processed, due to a system error or an error on the reciever side, for example. In this case, u can use a Prioritized queue for urgent messages that must be processed immediately, without having to process the whole back-log first.
How to prioritize XI messages on the integration server
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/20bb9649-e86e-2910-7aa9-88ed4972a5f6
The parameter QualityOfService specifies how the Integration Engine should process a message. The following values are permitted:
1)BE(Best Effort: synchronous processing). If QualityOfService is BE, the client is sent the final status for the processing.
2)EO(Exactly Once: asynchronous processing with guaranteed execution exactly once). If QualityOfService is EO,processing occurs asynchronously and the client only recieves a confirmation of reciept with HTTP status '200'.
3)EOIO(Exactly Once in Order: asynchronous processing using queues, that is, guaranteed execution exactly once and maintaining the sequence of successive messages). If QualityOfService is EOIO,processing occurs asynchronously and the client only recieves a confirmation of reciept with HTTP status '200'.
Since u had choosen EOIO ,You must also define a queue name for EOIO:
XI.QueueId=<QueueName>
This queue name is used in the Integration Engine to process messages in the same sequence that they arrived in.
This QueueName can consist of a maximum of 16 characters. If the first 8 characters contain 'SAP_ALE_', these r removed since this value is reserved by SAP and used internally.
If a value is not specified for QualityOfService , the default value 'BE' is used.
These r following websites which u wil find helpful:
http://help.sap.com/saphelp_nw04/helpdata/en/0d/00453c91f37151e10000000a11402f/content.htm
http://help.sap.com/saphelp_nw04/helpdata/en/8f/d906d01f77fa40a4c84683c3f8326f/content.htm
http://documentation.softwareag.com/crossvision/xie311/admin/config.htm
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/a8424011-0d01-0010-e19d-e5bd8ca52244
cheers!
gyanaraj
****Pls reward points if u find this helpful

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We have scenarion JMS to File, using SAP Pi as JMS provider,configured sender JMS channel to pick up the message from queue,some times the message in queues are not picking up and strucking in the queue,is there any way we can tune or adjust
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Hi,
depending on the JMS provider check question
3. Provider specific Issues from
Note 856346 - J2EE JMS Adapter: Frequently Asked Questions (FAQ
>>>Also is there JMS queues prioritization option available within 7.1 version.
yes:
http://help.sap.com/saphelp_nwpi71/helpdata/en/59/25ee41c334c717e10000000a155106/content.htm
>>>>there any way we can tune or adjust queues to pick up the messages immediately
yes
check service :XPI Service: AF Core
where you can change the number of queues per adapter (so JMS for example)
http://help.sap.com/saphelp_nwpi71/helpdata/en/a7/c3d341c4cbc317e10000000a155106/content.htm
hope this helps,
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Michal Krawczyk

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i need to pass data to XI through a particular QUEUEID if any body has sample ABAP code for it pls post...........
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Are you talking about queue prioritization?
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Ugur E

There is a concept called Queue Prioritization which you can check out:
http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/20bb9649-e86e-2910-7aa9-88ed4972a5f6?quicklink=index&overridelayout=true
More information is available on SDN...you can search for it, if needed.
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Improve queue Prioritization

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