Exception Queue cleanup.

hi all,
i am using oracle 9i.
is there a way to automatically remove messages from the exception queue?
if so, what determines when this removal occurs?
Thanks ahead,
Lior.

i ll answer my question
first set exception queue dequeue enable
BEGIN
dbms_aqadm.start_queue(queue_name => 'aq$_request_qt_e',dequeue => TRUE,enqueue => FALSE);
END;
then dequeue messages with null consumer name ;)

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Exception queue messages

is there anyway to dequeue exception queue messages
my main queue is multiconsumer
Message was edited by:
JAA

i ll answer my question
first set exception queue dequeue enable
BEGIN
dbms_aqadm.start_queue(queue_name => 'aq$_request_qt_e',dequeue => TRUE,enqueue => FALSE);
END;
then dequeue messages with null consumer name ;)

BPEL Process for AQ Exception Queue

Is there a way to configure AQ adapter to dequeue message from default exception queue. I have tried doing so but it fails to find the exception queue. If not then what are the better ways of handling exception messages for a multiconsumer queue.
I need to enqueue the messages from exception queue once the issue is resolved.
-AA

Any one who can help me on this ?
-AA

Message not moving to default exception queue when max retries reached

Hi
I've set up an advanced queue with max retrie of 5 but when the dequing fails the retry count increments but it never goes to the exception queue. The retry count stays at 6, msg_state = READY, deq_txn_id = RETRY_EXCEEDED. Any ideas?
-- drop queue if it exists
exec dbms_aqadm.stop_queue (queue_name => 'AQ$_JY_METER_ENABLE_QTAB_E');
exec dbms_aqadm.stop_queue (queue_name => 'JY_METER_ENABLE_QUE');
exec dbms_aqadm.drop_queue (queue_name => 'JY_METER_ENABLE_QUE') ;
exec dbms_aqadm.drop_queue_table( queue_table => 'JY_METER_ENABLE_QTAB');
-- create the payload for the messages
CREATE TYPE jy_meter_enablement_typ AS OBJECT
request_id                VARCHAR2(30) ,
request_system_code       VARCHAR2(20) ,
business_process_ref      VARCHAR2(20) ,
request_type_ref          VARCHAR2(20) ,
meter_serial_number       VARCHAR2(10) ,
message_request_content   CLOB
-- Create queue table.
-- This one has a sort list so items will be enqueued first based on priority and then based on enq_time
BEGIN
   dbms_aqadm.create_queue_table (queue_table        => 'JY_METER_ENABLE_QTAB',
                                  queue_payload_type => 'JY_METER_ENABLEMENT_TYP',
                                  multiple_consumers => TRUE ,
                                  sort_list          => 'priority,enq_time' ,
                                  comment            => 'Queue table to handle JY Meter Enablement messages');
END;
-- Create Queue based on table
BEGIN
-- retention time set 3600 seconds (ie 1 hour) so the message is kept on the queue for 1 hour after it has been dequeued.
   dbms_aqadm.create_queue (queue_name     => 'JY_METER_ENABLE_QUE',
                            queue_table    => 'JY_METER_ENABLE_QTAB' ,
                            max_retries    => 5 ,
                            retry_delay    => 2 ,
                            retention_time => 3600 ,
                            comment     => 'Queue to handle JY Meter Enablement messages in priority/enq_time order');
END;
-- start the queue
BEGIN
dbms_aqadm.start_queue (queue_name => 'JY_METER_ENABLE_QUE');
END ;
-- Add and register a subscriber to the queue to run the Dequeue procedure
BEGIN
   dbms_aqadm.add_subscriber (queue_name => 'EMO_METER_MGMT.JY_METER_ENABLE_QUE',
                              subscriber => SYS.AQ$_AGENT('JY_METER_ENABLE_QUE_SUBSCRIBER',
                                                          NULL,
                                                          NULL )
    dbms_aq.register (SYS.AQ$_REG_INFO_LIST(SYS.AQ$_REG_INFO('JY_METER_ENABLE_QUE:JY_METER_ENABLE_QUE_SUBSCRIBER',
                                                             DBMS_AQ.NAMESPACE_AQ,
                                                             'plsql://EMO_METER_MGMT.DEQUEUE.dequeue_jy_request',
                                                             HEXTORAW('FF'))),1);
END;
-- start the default exception queue
BEGIN
dbms_aqadm.start_queue(queue_name => 'EMO_METER_MGMT.AQ$_JY_METER_ENABLE_QTAB_E',
                        enqueue => FALSE,
                        dequeue => TRUE);
END ;
/Thanks

Sorry, forgot to add db version
select banner from v$version/
BANNER
Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
PL/SQL Release 11.2.0.2.0 - Production
CORE 11.2.0.2.0 Production
TNS for Linux: Version 11.2.0.2.0 - Production
NLSRTL Version 11.2.0.2.0 - Production
5 rows selected.

Business messages are not pushed back to the aq exception queue in case of errors

Hi,
I have the scenario, where I have configured the business events in ebs and implemented the soa interface which consumes the event message from wf_bpel_q.
SOA interface is able to pickup the messages succesfully and same message will be pushed back to the same queue with the status=READY in case of exceptions as well. Ideally as per default functionality of AQ, in case of errors, messages will be pushed to exception queue.
Please suggest why mesages are not pushed back to exception queue in case of errror scenarios with the status='Errored'. Please let me know what i have been missing here in the setup.
Regards,
Anjana

Hi Anjana,
I am not familiar with the SOA interface, so I can't help you in detail, but take a closer look to the following documents.
Doc ID 1374461.1 , Doc ID 1075611.1 , Doc ID 1356146.1
Maybe you hit a known bug ....
Hope that helps.

Dequeue from exception queue failing

i'm having trouble dequeueing a message that has been moved to the exception queue. i can 'see' the message by looking at the queue table using Toad, but any attempt to dequeue it using DBMS_AQ.DEQUEUE results in the procedure timing out without dequeuing the message. when i try to dequeue it explicitly, using the ID, the process hangs. either way, there are no error messages.
i'm using the default exception queue, which i have started and enabled for dequeue.
thanks in advance for any help, simon

after banging my head on the wall for three days, a shutdown and restart of the database solved this problem....

Exception queue

How can i tell what caused a message to go to the exception queue.
For instance say i have a message that has reached its expiration period and goes to the exception queue how would i be able to find out that the reason it went to the exception queue is because it had expired?
version 10g
select * from AQ$<queue_table> will show the reason why the message went to the exception queue.
Edited by: user457357 on May 6, 2009 5:37 PM

When you define a queue table and queue, there will be an exception queue there automatically - you can't avoid it being created.

Browsing Exception Queue

Hi there,
I have a JMS messaging arquitecture using the OJMS provider. I created one queue and as I've read, automatically an exception queue was created. I'm trying to browse that exception queue and list the messages in, but despite there are messages, the method getEnumeration() does not retrieve me anything. Anyone knows why?
I'm using Oracle 10.1.0.1.
Thanks in advance.
Carolina Antón
carolina.anton_at_gmail.com

Hi Henry,
Unless your concern is about Microsoft scheduling solution "PROJECT", you should post your thread in the appropriate forum in order to have an helpful hand.
Regards.
Guillaume Rouyre - MBA, MCP, MCTS

How to automatically empty the exception queue?

Hi.
I have an exception queue that contains over 140000 messages. Is there some way of making Oracle empty this queue on a regular basis? I have set "dequeue" to "disabled" because I am not interested in this queue's messages, but the queue just continues to grow larger and larger...
Any help would be very appreciated!
Regards,
-Christer

Is this really not possible? Do I have to make a trigger on the table or manually delete it to stop growing?

Consume exception queue messages (Topic)

Hi,
Context : 1 topic - 2 consumers (BPEL consumers) A and B.
If A fails to consume a message, this message is sent to the exception queue even if B managed to consume it.
It's normal.
If I move this message from the exception queue to the original queue, it will be consumed by A and again by B.
Is it normal ?
I expected that the message would be only consumed by A ...
Is it possible ?
Thanks,
romain.

i ll answer my question
first set exception queue dequeue enable
BEGIN
dbms_aqadm.start_queue(queue_name => 'aq$_request_qt_e',dequeue => TRUE,enqueue => FALSE);
END;
then dequeue messages with null consumer name ;)

How to purge exception queue

I would like to write a store procedure to purge exception queue according to queue and corr_id, but the problem is corr_id needs to be passed as a variable.
declare
          po_t dbms_aqadm.aq$_purge_options_t;
          begin
          po_t.block := FALSE;
          dbms_aqadm.purge_queue_table(queue_table => 'hari_bpfqueuetable',
          purge_condition => 'queue = ''AQ$_HARI_BPFQUEUETABLE_E''',
          purge_options => po_t);
          end;
The above script works fine, but once I add corr_id to purge condition as blow, it gives error.Can anybody help on that? Thanks in advance
declare
          po_t dbms_aqadm.aq$_purge_options_t;
          begin
          po_t.block := FALSE;
          dbms_aqadm.purge_queue_table(queue_table => 'hari_bpfqueuetable',
          purge_condition => 'queue = ''AQ$_HARI_BPFQUEUETABLE_E'' and corr_id = ''???''',
          purge_options => po_t);
          end;

user477534,
Just a suggestion.
What about concatenation?
dbms_aqadm.purge_queue_table(queue_table => 'hari_bpfqueuetable',
purge_condition => 'queue = ''AQ$_HARI_BPFQUEUETABLE_E'' and corr_id = ''' || YOUR_VAR || '''',
purge_options => po_t);Good Luck,
Avi.

Remove exception queue

I am new to AQ. We are using Oracle 11.2.0.3. We will be implementing Normal single subscriber queue. We will be using exisiting error logging table to hadle exception . So exception queue would be redundant for our workflow.
1) Is is possible to create Queue without exception queue?
2) Can we use queue by disabling its exception queue?
3) How can we remove/expire message from exception queue as soon as it enqueued?
Appreciate your input. Thanks.

Hello,
1) Is is possible to create Queue without exception queue?
When you create a queue table you always get a default exception queue and there should always be at least one exception queue in a queue table. When you create normal queue an exception queue is not created just the normal queue
2) Can we use queue by disabling its exception queue?
I am not clear on what you are asking with regard to this question. If you enqueue a message into a normal queue and it needs to be moved to the exception queue a queue monitor slave process will move the message from the normal queue to the exception queue. You can only enable an exception queue for dequeue. You cannot prevent a message from being placed on the exception queue if it is appropriate for the system to do this.
3) How can we remove/expire message from exception queue as soon as it enqueued?
You can setup AQ PL/SQL Notification to process any messages which are placed in the default exception queue or use DBMS_AQ.Listener to listen for enqueued messages into the exception queue.
Thanks
Peter

Error handlers inserting into exception queue?

Hi,
Im currently writing a PL/SQL procedure that handles specific apply errors. The errors that i'm not interested in I would like to remain in the exception queue. How can I insert the LCRs into the exception queue?
Cheers,
Warren

I think i've realised that if you want the lcr to end up in the exception queue you have to call its execute sub-program.
e.g.
lcr.execute(true);
If execute is not called the apply error is effectively deleted/forgotten.

EIM - Default Exception Queue

Hi all,
EIM v9.0.2.4, UCCE v10.5.1
I'm having a reoccurring issue where all emails are initially routed to the proper queue but after exactly an hour / 2 hours, they are moved to default exception queue (since there are no available agents). We have set both the wait time & MRD max duration to a high value (2163000 secs).
Any ideas?
Thanks!
-JT-

Hi Jameson,
1. The current max load is 5 per agent. This is correctly distributed to the agents according to this setting
2. Agent A will continue to receive all emails from Day 1
3. Logs shows Agent A & B are still being targeted for emails from Day 1
4. Yup the default configuration. 30 min for new activities only.
5. The current behaviour is agent will set their availability status to Not Available at the end of their shirt, finish their current emails assigned to them before completely logging off
According to TAC, all the 100 emails will continue to be routed to the original agent A & B. And only new emails received after the skill change will be correctly distributed to the agents (Agent B) at that time. Not too sure if this is the actual behaviour / limitation.
Thanks!
-JT-

Message entering the exception queue instead of regular queue

Hi ,
First of all , hello everyone.
I'm new to streams technology and i found this forum that seem to be very helpful.
I have a problem - I defined a queue XYZ and then built a capture process queue that enters changes on some scheme to this queue.
The problem is that the changes enters the exception queue table aq$XYZ_table instead the regular queue table XYZ_table.
I checked the capture process and it seems working fine.
does anyone has a direction of why this problem happens?
thanks in advance,
Arnon

Hi ,
here is what i found in the trace file.
*** 2008-08-12 18:03:23.129
*** SERVICE NAME:(SYS$USERS) 2008-08-12 18:03:23.128
*** SESSION ID:(205.1) 2008-08-12 18:03:23.128
08/12/2008 18:03:23
*** 2008-08-13 02:01:07.154
knlc_ProcessMVDD-1: MISSING Streams multi-version data dictionary!!!
knlldmm: gdbnm=TEST.EVEN
knlldmm: objn=-40016372
knlldmm: objv=1
knlldmm: scn=3519960438
knlldmm: opnum=7
*** 2008-08-13 02:01:17.308
knlc_ProcessMVDD-1: MISSING Streams multi-version data dictionary!!!
knlldmm: gdbnm=TEST.EVEN
knlldmm: objn=-40016371
knlldmm: objv=1
knlldmm: scn=3519960509
knlldmm: opnum=7
*** 2008-08-14 02:01:33.888
knlc_ProcessMVDD-1: MISSING Streams multi-version data dictionary!!!
knlldmm: gdbnm=TEST.EVEN
knlldmm: objn=-40016358
knlldmm: objv=1
knlldmm: scn=3521410760
knlldmm: opnum=7
*** 2008-08-14 02:01:46.086
knlc_ProcessMVDD-1: MISSING Streams multi-version data dictionary!!!
knlldmm: gdbnm=TEST.EVEN
knlldmm: objn=-40016357
knlldmm: objv=1
knlldmm: scn=3521411166
knlldmm: opnum=7
i checked on this error and i found that i need to run DBMS_CAPTURE_ADM.PREPARE_TABLE_INSTANTIATION in order to fix it but it also didn't help , and the capture process still not working.

Exception Queue cleanup.

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