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https://issues.apache.org/jira/browse/QPID-8692?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17945430#comment-17945430
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Vijay Danda commented on QPID-8692:
-----------------------------------
The messages are deleted due to being dequeued. There are 10
concurrentConsumers. I attached detailed log of our run in file
qpid-complete-run.log. The only weird messages we see is about Suspension. See
the end of attached file. But we are not sure what would cause this or If it
would cause a roll back in derby.
{code:java}
2025-04-16T14:02:59,954Z INFO [IO-/127.0.0.1:39656] (q.m.s.state) - [IO Pool]
[sub:10(vh(/0|14|qpid-jms:receiver:ID:9d09678a-9f15-401c-8161-2a1f83357952:1:12:1:email-queue)/qu(0|14|qpid-jms:receiver:ID:9d09678a-9f15-401c-8161-2a1f83357952:1:12:1:email-queue)]
SUB-1003 : Suspended for 30,001 ms
2025-04-16T14:02:59,954Z INFO [IO-/127.0.0.1:39656] (q.m.s.state) - [IO Pool]
[sub:12(vh(/0|15|qpid-jms:receiver:ID:9d09678a-9f15-401c-8161-2a1f83357952:1:16:1:email-queue)/qu(0|15|qpid-jms:receiver:ID:9d09678a-9f15-401c-8161-2a1f83357952:1:16:1:email-queue)]
SUB-1003 : Suspended for 30,001 ms{code}
Regarding restart, only when QPID encounters java.sql.BatchUpdateException QPID
restarts on its own. The exception will happen during the next run and QPID
tries to insert in to QPID_QUEUE_ENTRIES.
> [Broker-J] Failed to enqueue messages caused by duplicate key value in on
> 'QPID_QUEUE_ENTRIES'
> ----------------------------------------------------------------------------------------------
>
> Key: QPID-8692
> URL: https://issues.apache.org/jira/browse/QPID-8692
> Project: Qpid
> Issue Type: Bug
> Components: Broker-J
> Affects Versions: qpid-java-broker-9.2.0
> Environment: java version : openjdk 21.0.6 2025-01-21 LTS
> Red Hat Enterprise Linux 8.10
> qpid broker: qpid-broker-9.2.0
> Reporter: Vijay Danda
> Priority: Major
> Attachments: derby_logs_message5119.txt, qpid_log.txt
>
>
> Use case: We use Qpid instance to drop email messages in to the queue.
> Clients would connect to qpid instance, reads those email messages and sends
> it to SMTP server.
> Issue: When sending emails on second day, we saw the following error in qpid
> logs
> {code:java}
> java.sql.BatchUpdateException: The statement was aborted because it would
> have caused a duplicate key value in a unique or primary key constraint or
> unique index identified by 'SQL200930134600720' defined on
> 'QPID_QUEUE_ENTRIES'.
> at
> org.apache.derby.impl.jdbc.EmbedStatement.executeLargeBatch(Unknown
> Source){code}
> Complete qpid logs are attached. See qpid_log.txt
> Test case:
> We sent around 5000 email messages. We observed, for each message there is a
> insert in to QPID_QUEUE_ENTRIES statement and sub sequent delete from
> QPID_QUEUE_ENTRIES. However, when we connect to database and see
> QPID_QUEUE_ENTRIES table there are still around 1520 records in the table.
> If we send more messages the next day, we are running in to above error
> message. Attached derby_logs_message5119.txt derby log with trace statements
> for message id 5119.
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