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| manika |
 Posted: Sun Jun 14, 2015 4:36 am Post subject: Priority |
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Newbie
Joined: 14 Jun 2015
Posts: 2
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Hi,
I have multiple messages in my request queue where i can find priority of messages, but those are individual XML messages. when i am using additional instances in to my flow ,i am able to store first message in to Environment variables and other messages are not able to store as those are in separate thread/instances.
I have used MQRFH2 to archive this, but i can see/store only first instances of message in my Environment and i am not able to see first message when second instances of message is arriving in to my flow.
Please suggest if any idea to store all messages in to environment which are coming as individual. |
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| smdavies99 |
| Posted: Sun Jun 14, 2015 5:33 am Post subject: |
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Jedi Council
Joined: 10 Feb 2003
Posts: 6076
Location: Somewhere over the Rainbow this side of Never-never land.
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Is the 'priority' based upon MQ Message priority or some value in the XML data?
Storing messages in the Environment?
Every thread/instance will have its own Environment tree.
Are you talking about Shared Variables?
Personally, I think it is a bad idea.
How many messages do you have to read before you decide which one is 'top' priority? 5, 10, 50, 500, 50000?
If your sending apps can be modified then why not use the Priority feature in MQ to mark those that are important. Then if the Queue is setup with Priority ordering you won't have to do anything in Broker because MQ will deliver them in priority order for you.
Perhaps you could explain your requirement a bit better?
_________________
WMQ User since 1999
MQSI/WBI/WMB/'Thingy' User since 2002
Linux user since 1995
Every time you reinvent the wheel the more square it gets (anon). If in doubt think and investigate before you ask silly questions. |
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| manika |
| Posted: Sun Jun 14, 2015 7:38 am Post subject: |
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Newbie
Joined: 14 Jun 2015
Posts: 2
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Is the 'priority' based upon MQ Message priority or some value in the XML data?
Ans : Priority is based on MQ message priority that i can set in MQMD,
Storing messages in the Environment? :
Ans :Yes i want to store all request messages in Environment for further processing.
Are you talking about Shared Variables?:
Ans : No i am not using any shared variables.
I have number of ( Max 1 lac) messages to decide the priority.
Queue is setting Priority before message is coming in to broker, but i need to store all messages(Individual messages) in to Environment as i need to compare and do the further integration, i have tried to store all request messages in to environment , but as i said previous messages are being lost ,when next message is coming/storing to environment.
Below steps are followed to archive this.
1: Set additional instances to my flow and deployed.
2: set Priority in MQMD while put messages from Queue
3: I have put 10's of messages at a time
4: first message comes to broker and storing in the Environment.
5: second message successfully stored but i lost my previous message as it is next instances of message.
Please suggest as i don't want to loose my previous messages while storing next messages. |
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| fjb_saper |
| Posted: Sun Jun 14, 2015 8:05 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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| manika wrote: |
Is the 'priority' based upon MQ Message priority or some value in the XML data?
Ans : Priority is based on MQ message priority that i can set in MQMD,
Storing messages in the Environment? :
Ans :Yes i want to store all request messages in Environment for further processing.
Are you talking about Shared Variables?:
Ans : No i am not using any shared variables.
I have number of ( Max 1 lac) messages to decide the priority.
Queue is setting Priority before message is coming in to broker, but i need to store all messages(Individual messages) in to Environment as i need to compare and do the further integration, i have tried to store all request messages in to environment , but as i said previous messages are being lost ,when next message is coming/storing to environment.
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Your design is crazy and really requires a DB and process the messages off the database. If you need up to 100,000 messages to know in which order to process there is no way you can compare and hold them in the broker's environment ... There are multiple methods including broker cache ... but the most appropriate here looks like a DB!!!
| Quote: |
Below steps are followed to archive this.
1: Set additional instances to my flow and deployed.
2: set Priority in MQMD while put messages from Queue
3: I have put 10's of messages at a time
4: first message comes to broker and storing in the Environment.
5: second message successfully stored but i lost my previous message as it is next instances of message.
Please suggest as i don't want to loose my previous messages while storing next messages. |
Review your design... 
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MQ & Broker admin |
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| smdavies99 |
| Posted: Sun Jun 14, 2015 8:30 am Post subject: |
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Jedi Council
Joined: 10 Feb 2003
Posts: 6076
Location: Somewhere over the Rainbow this side of Never-never land.
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| fjb_saper wrote: |
Review your design... |
Now that we have had some more details then I'm inclined to agree.
The batch size and the priority of a message in an unknown group of messages? currently you are just asking for trouble.
_________________
WMQ User since 1999
MQSI/WBI/WMB/'Thingy' User since 2002
Linux user since 1995
Every time you reinvent the wheel the more square it gets (anon). If in doubt think and investigate before you ask silly questions. |
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| inMo |
| Posted: Mon Jun 15, 2015 4:57 am Post subject: |
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Master
Joined: 27 Jun 2009
Posts: 216
Location: NY
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As it seems to have gotten lost in the conversation:
| Quote: |
| Every thread/instance will have its own Environment tree. |
You can't expect to have 1 thread look at another thread's environment. Further, you cannot expect the environment tree to survive beyond the execution of the single instance/thread it is part of.
| Quote: |
| Review your design... |
That really seems like the best idea - there are multiple core issues with the design that has been presented. |
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