Retaining in the queue

Hi,
My MDB reads the message from the queue and invokes a session bean for some operation. My problem is, if the operation in session bean fails, the message in the queue should not be deleted. For Eg. MDB reads the message in the queue and passes to the session bean. session bean inserts the message received in the database. If the database is down at that moment, can the message in the queue be retained? Rather put back in the same position?
Advance Thanks.

Thats what transactions are for :). Just use XA to ensure that the consumption of the message and any other operations (such as JDBC operations) are atomic. On a rollback messages are redispatched a number of times.
http://activemq.org/Should+I+use+XA
James
http://logicblaze.com/
Open Source SOA

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Little_Pale_Face wrote:
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Hello,
We are running iPlanet 5.2 Messaging Server and need
to migrate to another (duplicate) 5.2 Messaging
Server. We have all the software installed and the
LDAP user accounts created. Now we just need to move
the existing mail from one server to the other.
I found the Backing Up and Restoring the Message
Store section in the Admin Guide says to back up and
restore your data, Messaging Server provides the
imsbackup and imsrestore utilities.
However I am wondering about the Queue?
Under <instance>/imta/queue
What is the difference between the Message Store
and the Queue? The Message Store is where messages get delivered to, so you can read them.'
The queue is where messages are temporarily stored, pending delivery to wherever they go.
You can use tar, cpio, or what have you for the queue. Stop the server first. . .
You then just restore the files to the new server. No need to restart or anything like that. Just dump the files in, and run
imsimta cache -sync
to tell the MTA to re-read the queue.
Can I just backup and restore the
Queue using tar or cpio?
Thanks in advance for any advice.
Regards,
Tim

We need to open the connection each time you read a message from the queue?

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I have a doubt regarding my queue read data that contains those I create a session and connection.
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I answered myself.
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FYI..
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This question was solved.
View Solution.

Hi Robertha,
Open the printers folder, and then double click on the printer. Click printer, and then cancel all documents.
I am an HP employee.
Say Thanks by clicking the Kudos Star in the post that helped you.
Please mark the post that solves your problem as "Accepted Solution"

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do you have source patching turned on for audio?

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null

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Hello
Please could you help us???. We have import packages SAPKINBC9A, but we have a problem, because we obtein error Packages in the queue don't exist in the tp buffer, what do we make for this packages exists in the buffer??
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Hello,
It isn't the fw in Network you want o use or look at, that's for something completely different.
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My application server is JBOSS2.4.3
I think I have to specify some attributes in the
descriptor files.But how??????????????
Here is my code
import java.util.*;
import javax.ejb.*;
import javax.jms.*;
import javax.naming.*;
public class MyMessageBean implements javax.ejb.MessageDrivenBean,javax.jms.MessageListener
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ejb-jar.xml
<?xml version="1.0"?>
<!DOCTYPE ejb-jar>
<ejb-jar>
<enterprise-beans>
<message-driven>
<ejb-name>MyMessageBean</ejb-name>
<ejb-class>MyMessageBean</ejb-class>
<transaction-type>Container</transaction-type>
<message-driven-destination>
<destination-type>javax.jms.Queue</destination-type>
</message-driven-destination>
</message-driven>
</enterprise-beans>
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?xml version="1.0" encoding="UTF-8"?>
<jboss>
<enterprise-beans>
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          <ejb-name>MyMessageBean</ejb-name>
          <configuration-name>Standard Message Driven Bean</configuration-name>
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</enterprise-beans>
</jboss>

it is unclear whether you are commiting on the first queue or second one.
but it appears like you have created a transactional problem across the two queues. although you commit on the first queue, this commit is not extended to the second queue.
things will be fine unless you get an exception of shutdown.
if you shut your message provider down first then you cannot send the message to the second queue. (assuming that queue 2 is also on the same server)
if you shut your MB app server down then you may be in the middle of accepting a onMessage callback from the first queue.
do you have another MB that registers this one as a listener, or are you infact sending a message back onto the same queue...
public void onMessage(Message msg){
try{
     this.sender.send (msg);
     //your server may shutdown here and leave messages on the first queue. and send extra messages on the second.
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} catch(javax.jms.JMSException jmse ){
        jmse.printStackTrace();
}

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Hi,
I'm new to SAP PI and kinda confused with queues.
I have file -> bpm -> file scenario and there was an error in mapping within bpm process.
When I went to qRFC Monitor (smq2), I see that in XBQO$PE_WS90000002 queue,
there's an error, 'Permanent error in BPE inbound processing'... which is expected.
Now, I run the interface scenario again several times but they don't get processed
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I thought by deleting the error message, other messages will be processed...
I deleted the error message but the other messages are still in the queue...
I have two questoins.
1. What is the best way to handle an error in the queue... can I just delete it? or is there a better way to handle an error in the queue?
2. After deleting the queue, what should I do to make the other messages to be processed again...
Thank you.
-Won

Hi Won,
There are programs for restarting the LUW entries:
programs
· RSARFCRD: tRFC Monitor (transaction SM58)
· RSARFCSE: Restart an LUW (background job)
· RSARFCEX: Restart tRFC LUWs (background job)
· RSQOWKEX: Restart QOUT qRFC LUWs
· RSQIWKEX: Restart QIN qRFC LUWs
· RSARFCSE: Delete an LUW (background job)
· RSARFCER: Delete various LUWs
Also, check the url:
http://help.sap.com/saphelp_nw04/helpdata/en/25/bcfa40badbf46fe10000000a1550b0/content.htm
Hope this helps.
Regards,
Sushama

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clciking the tiny printer icon to prit without a dialog box works fine.
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other applications seem to print fine.
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i altered the print queue to not spool and instead the job reads "printing" and never appears.
if i quit word with a job in the queue word gives me a warning that quitting word will cancel the printing jobs. and quitting word does just that, the jobs are removed from the queue.
...and just to be clear i can print fine if i click on the one click printing icon in the icon bar directly above the document and below the menu bar.
what's the fix for this?
thanks!

Well...the 'solution' I received from HP Support was to add a new printer (Deskjet 990C) and make it the default printer. Once I did that, all printing issues went away. The tech person did say there were some compatability issues between the Officejet 6500 printer and Vista, but would not elaborate.

Retaining in the queue

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