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From "Mark Gellings (JIRA)" <j...@apache.org>
Subject [jira] Commented: (AMQ-2498) Broker goes down when database is restarted or goes down
Date Wed, 18 Nov 2009 15:04:52 GMT

    [ https://issues.apache.org/activemq/browse/AMQ-2498?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=55549#action_55549
] 

Mark Gellings commented on AMQ-2498:
------------------------------------

I have handled this problem using a connection pooler.  Master goes down, slave attempts to
connect to database and retries however many times configured...  New slave then needs to
be started up manually (or automatically through some automation).


  <bean id="mssql-ds" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">
    <property name="driverClass" value="com.microsoft.sqlserver.jdbc.SQLServerDriver"/>
    <property name="jdbcUrl" value="jdbc:sqlserver://CAGR.qg.com:1433;databaseName=AtvMMS"/>
    <property name="user" value="user"/>
    <property name="password" value="password"/>
    <property name="acquireRetryAttempts" value="100"/>
    <property name="testConnectionOnCheckout" value="true"/>
    <property name="testConnectionOnCheckin" value="true"/>
    <property name="automaticTestTable" value="ACTIVEMQ_CONN_TEST"/>
    <property name="acquireRetryDelay" value="5000"/>
    <property name="preferredTestQuery" value="SELECT 1"/>
  </bean>

> Broker goes down when database is restarted or goes down
> --------------------------------------------------------
>
>                 Key: AMQ-2498
>                 URL: https://issues.apache.org/activemq/browse/AMQ-2498
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.3.0
>            Reporter: Partha
>            Priority: Critical
>         Attachments: server.log
>
>
> When I database is idle for too long or I manually restart database, broker is shutting
down. Does it not automatically try to reconnect? Am I missing anything?
> I am setting validationQuery and testOnBorrow to true in broker-config.xml datasource
bean.
> Do I need to do anything else to tell broker for keep trying for database connection?
> error
> =========================
> Failed to checkpoint a message store: java.util.concurrent.ExecutionException: java.io.IOException:
The TCP/IP connection to the host  has failed. java.net.ConnectException: Connection refused:
connect
> java.util.concurrent.ExecutionException: java.io.IOException: The TCP/IP connection to
the host  has failed. java.net.ConnectException: Connection refused: connect
>  at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
>  at java.util.concurrent.FutureTask.get(FutureTask.java:83)
>  at org.apache.activemq.store.journal.JournalPersistenceAdapter.doCheckpoint(JournalPersistenceAdapter.java:421)
>  at org.apache.activemq.store.journal.JournalPersistenceAdapter$1.iterate(JournalPersistenceAdapter.java:124)
>  at org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:122)
>  at org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:43)
>  at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>  at java.lang.Thread.run(Thread.java:619)
> Caused by: java.io.IOException: The TCP/IP connection to the host  has failed. java.net.ConnectException:
Connection refused: connect
>  at org.apache.activemq.util.IOExceptionSupport.create(IOExceptionSupport.java:45)
>  at org.apache.activemq.store.jdbc.TransactionContext.getConnection(TransactionContext.java:61)
>  at org.apache.activemq.store.jdbc.TransactionContext.begin(TransactionContext.java:151)
>  at org.apache.activemq.store.jdbc.JDBCPersistenceAdapter.beginTransaction(JDBCPersistenceAdapter.java:406)
>  at org.apache.activemq.store.journal.JournalPersistenceAdapter.beginTransaction(JournalPersistenceAdapter.java:216)
>  at org.apache.activemq.util.TransactionTemplate.run(TransactionTemplate.java:41)
>  at org.apache.activemq.store.journal.JournalMessageStore.checkpoint(JournalMessageStore.java:258)
>  at org.apache.activemq.store.journal.JournalTopicMessageStore.checkpoint(JournalTopicMessageStore.java:171)
>  at org.apache.activemq.store.journal.JournalPersistenceAdapter$5.call(JournalPersistenceAdapter.java:408)
>  at org.apache.activemq.store.journal.JournalPersistenceAdapter$5.call(JournalPersistenceAdapter.java:407)
>  at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
>  at java.util.concurrent.FutureTask.run(FutureTask.java:138)
>  ... 3 more
> Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: The TCP/IP connection to
the host  has failed. java.net.ConnectException: Connection refused: connect
>  at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(Unknown Source)
>  at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(Unknown Source)
>  at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(Unknown Source)
>  at org.apache.commons.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:38)
>  at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:294)
>  at org.apache.commons.pool.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:974)
>  at org.apache.commons.dbcp.PoolingDataSource.getConnection(PoolingDataSource.java:96)
>  at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880)
>  at org.apache.activemq.store.jdbc.TransactionContext.getConnection(TransactionContext.java:54)
>  ... 13 more
> 2009-11-12 14:30:12,705 INFO  [STDOUT] 2009-11-12 14:30:12,705 [Q Cleanup Timer] INFO
 BrokerService                  - ActiveMQ JMS Message Broker (ess.broker1, ID:VR1Server-8183-1258064801205-0:0)
stopped
> ============
> Thanks,
> PG

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