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From "armgong (JIRA)" <j...@apache.org>
Subject [jira] Issue Comment Edited: (AMQ-1764) strange slower consumer and borker problem,make slow consumer application and broker memory grow very fast
Date Thu, 05 Jun 2008 00:45:00 GMT

    [ https://issues.apache.org/activemq/browse/AMQ-1764?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=43188#action_43188
] 

armgong edited comment on AMQ-1764 at 6/4/08 5:44 PM:
------------------------------------------------------

it seems https://issues.apache.org/activemq/browse/AMQ-1136

btw the attach file is includes the activemq config file activemq.xml and producer (in producer
dir )and slow consumer application (in slow dir). the two applications user none_durable topic
"chatTopic.chatMessage"
if configured in activemq as following :
<destinations>         
         <topic physicalName="chatTopic.chatMessage" />
       </destinations>
        <!-- Destination specific policies using destination names or wildcards -->
        <destinationPolicy>
            <policyMap>
                <policyEntries>
                    <policyEntry queue=">" memoryLimit="20mb"/>
                    <policyEntry topic="chatTopic.chatMessage" memoryLimit="64mb">
                        <dispatchPolicy>
                            <strictOrderDispatchPolicy/>
                        </dispatchPolicy>
                        <subscriptionRecoveryPolicy>
                            <lastImageSubscriptionRecoveryPolicy/>
                        </subscriptionRecoveryPolicy>
                       <!--slow consumer policy-->
                       <pendingMessageLimitStrategy>   
                          <constantPendingMessageLimitStrategy limit="10"/>   
                       </pendingMessageLimitStrategy>  
                    </policyEntry>
                </policyEntries>
            </policyMap>
        </destinationPolicy>

      was (Author: armgong):
    btw the attach file is includes the activemq config file activemq.xml and producer (in
producer dir )and slow consumer application (in slow dir). the two applications user none_durable
topic "chatTopic.chatMessage"
if configured in activemq as following :
<destinations>         
         <topic physicalName="chatTopic.chatMessage" />
       </destinations>
        <!-- Destination specific policies using destination names or wildcards -->
        <destinationPolicy>
            <policyMap>
                <policyEntries>
                    <policyEntry queue=">" memoryLimit="20mb"/>
                    <policyEntry topic="chatTopic.chatMessage" memoryLimit="64mb">
                        <dispatchPolicy>
                            <strictOrderDispatchPolicy/>
                        </dispatchPolicy>
                        <subscriptionRecoveryPolicy>
                            <lastImageSubscriptionRecoveryPolicy/>
                        </subscriptionRecoveryPolicy>
                       <!--slow consumer policy-->
                       <pendingMessageLimitStrategy>   
                          <constantPendingMessageLimitStrategy limit="10"/>   
                       </pendingMessageLimitStrategy>  
                    </policyEntry>
                </policyEntries>
            </policyMap>
        </destinationPolicy>
  
> strange slower consumer and borker problem,make slow consumer application and broker
memory grow very fast
> ----------------------------------------------------------------------------------------------------------
>
>                 Key: AMQ-1764
>                 URL: https://issues.apache.org/activemq/browse/AMQ-1764
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.1.0
>         Environment: win2003sp2 , activemq 5.10 ,jdk6.0update6
>            Reporter: armgong
>         Attachments: test.zip
>
>
> I write a fast producer(produce a message take 1 ms) and a slow consumer(consumer a message
take 10 seconds) application,and config standalone activemq through activemq.xml,in the activemq.xml
I config constantPendingMessageLimitStrategy limit="10",and in the slow consumer i config
connection url is "tcp://127.0.0.1:61616?jms.prefetchPolicy.queuePrefetch=50".
>  but the strange problem happends when i want send 200k 512 bytes size messages to borker
through fast producer. 
> when producer send  messages start,the borker and the slow consumer memory useage grow
very fast,after send 120k messages, the slow consumer take 80MB memory from at application
start 18MB memory,and borker take 140MB memory, then borker slowing down,and totaly freeze.

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