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https://issues.apache.org/jira/browse/AMQ-1870?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13679214#comment-13679214
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Keith Oppenheim commented on AMQ-1870:
--------------------------------------
Hi Gary,
It appears that maxRows is still computed using the max of maxrows and the
current request rather than the min in one of the
DefaultJDBCAdapter#doRecoverNextMessages overloads. Please see line 1037 in
DefaultJDBCAdapter.
Thanks,
Keith
> JDBC exception when sending and receiving a lot of messages (MySQL 5 in use
> for persistence)
> --------------------------------------------------------------------------------------------
>
> Key: AMQ-1870
> URL: https://issues.apache.org/jira/browse/AMQ-1870
> Project: ActiveMQ
> Issue Type: Bug
> Components: JMS client
> Environment: Active MQ 5.1, Windows XP, MySQL 5.0.45, MySQL
> Connector/J 5.1.5
> Reporter: PJ Fanning
> Assignee: Gary Tully
> Fix For: 5.8.0
>
> Attachments: AMQ-1870.patch
>
>
> The number of messages that were on the queue was approx 3 million when this
> exception happened. Would it be possible to modify the code so that the
> setMaxRows value is kept to a much lower number?
> java.sql.SQLException: setMaxRows() out of range. 50871918 > 50000000.
> at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1055)
> at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956)
> at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:926)
> at com.mysql.jdbc.StatementImpl.setMaxRows(StatementImpl.java:2412)
> at
> org.apache.commons.dbcp.DelegatingStatement.setMaxRows(DelegatingStatement.java:186)
> at
> org.apache.activemq.store.jdbc.adapter.DefaultJDBCAdapter.doRecoverNextMessages(DefaultJDBCAdapter.java:703)
> at
> org.apache.activemq.store.jdbc.JDBCMessageStore.recoverNextMessages(JDBCMessageStore.java:230)
> at
> org.apache.activemq.store.ProxyMessageStore.recoverNextMessages(ProxyMessageStore.java:83)
> at
> org.apache.activemq.broker.region.cursors.QueueStorePrefetch.doFillBatch(QueueStorePrefetch.java:75)
> at
> org.apache.activemq.broker.region.cursors.AbstractStoreCursor.fillBatch(AbstractStoreCursor.java:188)
> at
> org.apache.activemq.broker.region.cursors.AbstractStoreCursor.hasNext(AbstractStoreCursor.java:104)
> at
> org.apache.activemq.broker.region.cursors.StoreQueueCursor.hasNext(StoreQueueCursor.java:136)
> at org.apache.activemq.broker.region.Queue.doPageIn(Queue.java:1092)
> at
> org.apache.activemq.broker.region.Queue.pageInMessages(Queue.java:1178)
> at org.apache.activemq.broker.region.Queue.iterate(Queue.java:956)
> at
> org.apache.activemq.thread.DeterministicTaskRunner.runTask(DeterministicTaskRunner.java:84)
> at
> org.apache.activemq.thread.DeterministicTaskRunner$1.run(DeterministicTaskRunner.java:41)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
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