[ https://issues.apache.org/activemq/browse/AMQ-1148?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_38555
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Albert Strasheim commented on AMQ-1148:
---------------------------------------
Still having exactly the same problem as described in the original description. Tested with
revision 509457.
> Fast producer, slow consumer hangs after a few messages when using VMPendingSubscriberMessageStoragePolicy
> ----------------------------------------------------------------------------------------------------------
>
> Key: AMQ-1148
> URL: https://issues.apache.org/activemq/browse/AMQ-1148
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Affects Versions: 4.2.0
> Environment: Sun JDK 1.6.0 on Windows XP SP2 with VM arguments -Xms384m -Xmx512m
> Reporter: Albert Strasheim
> Priority: Critical
> Fix For: 4.2.0
>
> Attachments: SlowConsumerTest.java
>
>
> Following from this discussion:
> http://www.nabble.com/Fast-producer%2C-slow-consumer-with-spooling-to-disk--tf3123868.html
> Rob Davies implemented VMPendingSubscriberMessageStoragePolicy which, if I understand
correctly, should cause a fast producer to block if a slow consumer can't keep up.
> However, when running the attached test case, the system seems to hang before the consumers
have received much more than 5 messages. When it hangs probably depends on the heap size.
> I get this:
> 2007-02-02 13:44:23,281 [main ] INFO BrokerService - ActiveMQ
null JMS Message Broker (localhost) is starting
> 2007-02-02 13:44:23,281 [main ] INFO BrokerService - For
help or more information please see: http://incubator.apache.org/activemq/
> 2007-02-02 13:44:25,312 [main ] INFO JDBCPersistenceAdapter - Database
driver recognized: [apache_derby_embedded_jdbc_driver]
> 2007-02-02 13:44:26,500 [main ] INFO DefaultDatabaseLocker - Attempting
to acquire the exclusive lock to become the Master broker
> 2007-02-02 13:44:26,531 [main ] INFO DefaultDatabaseLocker - Becoming
the master on dataSource: org.apache.derby.jdbc.EmbeddedDataSource@1372656
> 2007-02-02 13:44:26,593 [main ] INFO JournalPersistenceAdapter - Journal
Recovery Started from: Active Journal: using 2 x 20.0 Megs at: C:\home\albert\work5\activemq\activemq-core\activemq-data\localhost\journal
> 2007-02-02 13:44:26,671 [main ] INFO JournalPersistenceAdapter - Journal
Recovered: 0 message(s) in transactions recovered.
> 2007-02-02 13:44:26,859 [main ] INFO BrokerService - Using
Persistence Adapter: JournalPersistenceAdapator(JDBCPersistenceAdaptor(org.apache.derby.jdbc.EmbeddedDataSource@1372656))
> 2007-02-02 13:44:26,906 [main ] INFO JournalPersistenceAdapter - Journal
deleted:
> 2007-02-02 13:44:29,296 [main ] WARN DefaultJDBCAdapter - Could
not create JDBC tables; they could already exist. Failure was: CREATE TABLE ACTIVEMQ_LOCK(
ID BIGINT NOT NULL, TIME BIGINT, BROKER_NAME VARCHAR(250), PRIMARY KEY (ID) ) Message: Table/View
'ACTIVEMQ_LOCK' already exists in Schema 'APP'. SQLState: X0Y32 Vendor code: 30000
> 2007-02-02 13:44:29,343 [main ] WARN DefaultJDBCAdapter - Could
not create JDBC tables; they could already exist. Failure was: INSERT INTO ACTIVEMQ_LOCK(ID)
VALUES (1) Message: 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 'SQL070130113001540'
defined on 'ACTIVEMQ_LOCK'. SQLState: 23505 Vendor code: 30000
> 2007-02-02 13:44:29,484 [main ] INFO TransportServerThreadSupport - Listening
for connections at: tcp://ratbert:60706
> 2007-02-02 13:44:29,515 [main ] INFO TransportConnector - Connector
tcp://ratbert:60706 Started
> 2007-02-02 13:44:29,515 [main ] INFO BrokerService - ActiveMQ
JMS Message Broker (localhost, ID:ratbert-2177-1170416663296-1:0) started
> 2007-02-02 13:44:29,578 [JMX connector ] INFO ManagementContext - JMX
consoles can connect to service:jmx:rmi:///jndi/rmi://localhost:1099/jmxrmi
> 2007-02-02 13:44:29,625 [/127.0.0.1:2181] INFO KahaStore - Kaha
Store successfully deleted data directory activemq-data\localhost\tmp_storage
> GOT A MESSAGE BEING SLOW
> GOT A MESSAGE BEING SLOW
> GOT A MESSAGE BEING SLOW
> GOT A MESSAGE BEING SLOW
> GOT A MESSAGE BEING SLOW
> GOT A MESSAGE BEING SLOW
> GOT A MESSAGE BEING SLOW
> GOT A MESSAGE BEING SLOW
> GOT A MESSAGE BEING SLOW
> before it hangs.
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