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Posted to dev@activemq.apache.org by "Timothy Bish (JIRA)" <ji...@apache.org> on 2014/01/08 18:38:54 UTC
[jira] [Commented] (AMQ-4920) AmqpErrorException occurs with
multiple concurrent amqp topic consumers
[ https://issues.apache.org/jira/browse/AMQ-4920?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13865670#comment-13865670 ]
Timothy Bish commented on AMQ-4920:
-----------------------------------
[~kearls] I believe this is resolved now, can you confirm that and close this if you are satisfied that its fixed.
> AmqpErrorException occurs with multiple concurrent amqp topic consumers
> -----------------------------------------------------------------------
>
> Key: AMQ-4920
> URL: https://issues.apache.org/jira/browse/AMQ-4920
> Project: ActiveMQ
> Issue Type: Bug
> Reporter: Kevin Earls
> Assignee: Kevin Earls
> Attachments: rp.out
>
>
> I'll add a test to reproduce this. There are currently 2 problems. The more frequent one looks like: org.apache.qpid.amqp_1_0.type.AmqpErrorException
> at org.apache.qpid.amqp_1_0.codec.ValueHandler.readConstructor(ValueHandler.java:99)
> at org.apache.qpid.amqp_1_0.codec.ValueHandler.parse(ValueHandler.java:90)
> at org.apache.qpid.amqp_1_0.codec.ValueHandler.readConstructor(ValueHandler.java:105)
> at org.apache.qpid.amqp_1_0.codec.ValueHandler.parse(ValueHandler.java:90)
> … repeated many times
> at org.apache.qpid.amqp_1_0.codec.ValueHandler.readConstructor(ValueHandler.java:105)
> at org.apache.qpid.amqp_1_0.codec.ValueHandler.parse(ValueHandler.java:90)
> at org.apache.qpid.amqp_1_0.messaging.SectionDecoderImpl.parseAll(SectionDecoderImpl.java:49)
> at org.apache.qpid.amqp_1_0.client.Receiver.receive(Receiver.java:280)
> at org.apache.qpid.amqp_1_0.jms.impl.MessageConsumerImpl.receive0(MessageConsumerImpl.java:286)
> at org.apache.qpid.amqp_1_0.jms.impl.MessageConsumerImpl.receiveImpl(MessageConsumerImpl.java:255)
> at org.apache.qpid.amqp_1_0.jms.impl.MessageConsumerImpl.receive(MessageConsumerImpl.java:238)
> at org.apache.qpid.amqp_1_0.jms.impl.MessageConsumerImpl.receive(MessageConsumerImpl.java:56)
> at org.apache.activemq.transport.amqp.ENTMQ466ConsumerThread.run(ENTMQ466Test.java:123)
> This occurs at the line "final EncodedMessage amqp = outboundTransformer.transform(jms);" in the ConsumerContext.pumpOutbound() method of AmqpProtocolConverter(). This call sometimes returns with its content (amqp.getArray()) set to all zeros.
> On those messages this line
> LOG.info("In pumpOutbound, setting currentBuffer to offset {} length {} content [{}]", amqp.getArrayOffset(), amqp.getLength(), amqp.getArray());
> returns:
> 2013-11-26 17:19:16,680 [calhost] Task-3] - INFO AmqpProtocolConverter - In pumpOutbound, setting currentBuffer to offset 0 length 162 content [[0, 0, 0, 0, 0, \
> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,\
> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0\
> , 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]]
> At the root of this, outboundTransformer is a (proton) AutoOutboundTransformer. It calls AMQPNativeOutboundTransformer.transform(), which calls msg.readBytes(data), which sometimes writes all 0s to data. Here msg is an ActiveMQBytesMessage.
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