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From "David Israel (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AMQ-4136) Broker freezes on peak burst producer persistent message delivery
Date Thu, 25 Oct 2012 21:37:11 GMT

     [ https://issues.apache.org/jira/browse/AMQ-4136?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

David Israel updated AMQ-4136:
------------------------------

    Description: 
Expected: throttled messages when tempStorage reaches 100%
Actual: broker hangs and no longer delivers messages and cannot be cleanly shutdown

Configuration:
- /conf/activemq.xml configuration: memoryUsage: 200MB, storeUsage: 1GB, tempUsage: 400MB
- test configuration (/example/build.xml): max (# of messages): 65000, messageSize: 10000
-> total message size: 65000 * 10000 bytes = 650 MB
Result: 
- burst of 65000 messages to queue, initially loads into memory but quickly gets dumped to
tempStorage (12% memoryUsage)
- messages persisted in database
- producer throttling does NOT occur, potentially b/c memoryUsage is at 0% in this peak/burst
scenario when activmq stops responding
- activemq process hangs at 104% tempUsage, 0% memoryUsage, and can't be shutdown without
force kill

commands:
Start amq:
/bin$ ./activemq console

start producer:
ant producer -Ddurable=true -DsleepTime=0

(Bug experienced with higher sleep times also.)

if you want to use consumers:
ant consumer -Durl=tcp://localhost:61616?jms.prefetchPolicy.queuePrefetch=1

- watch memory and disk usage in jconsole
http://tmielke.blogspot.com/2011/02/observations-on-activemqs-temp-storage.html

  was:
Expected: throttled messages when tempStorage reaches 100%
Actual: broker hangs and no longer delivers messages and cannot be cleanly shutdown

Configuration:
- /conf/activemq.xml configuration: memoryUsage: 200MB, storeUsage: 1GB, tempUsage: 400MB
- test configuration (/example/build.xml): max (# of messages): 65000, messageSize: 10000
-> total message size: 65000 * 10000 bytes = 650 MB
Result: 
- burst of 65000 messages to queue, initially loads into memory but quickly gets dumped to
tempStorage (12% memoryUsage)
- messages persisted in database
- producer throttling does NOT occur, potentially b/c memoryUsage is at 0% in this peak/burst
scenario when activmq stops responding
- activemq process hangs at 104% tempUsage, 0% memoryUsage, and can't be shutdown without
force kill

commands:
Start amq:
/bin$ ./activemq console

start producer:
ant producer -Ddurable=true -DsleepTime=0

(Bug experienced with higher sleep times also.)

if you want to use consumers:
ant consumer -Durl=tcp://localhost:61616?jms.prefetchPolicy.queuePrefetch=1

- watch memory and disk usage in jconsole
[10/25/12 2:28:07 PM] Joel Fischer: blog notes about expected behavior of tempStorage:
http://tmielke.blogspot.com/2011/02/observations-on-activemqs-temp-storage.html

    
> Broker freezes on peak burst producer persistent message delivery
> -----------------------------------------------------------------
>
>                 Key: AMQ-4136
>                 URL: https://issues.apache.org/jira/browse/AMQ-4136
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.6.0
>         Environment: Java 1.6.0_35
> Mac OSX 10.7.5
>            Reporter: David Israel
>
> Expected: throttled messages when tempStorage reaches 100%
> Actual: broker hangs and no longer delivers messages and cannot be cleanly shutdown
> Configuration:
> - /conf/activemq.xml configuration: memoryUsage: 200MB, storeUsage: 1GB, tempUsage: 400MB
> - test configuration (/example/build.xml): max (# of messages): 65000, messageSize: 10000
-> total message size: 65000 * 10000 bytes = 650 MB
> Result: 
> - burst of 65000 messages to queue, initially loads into memory but quickly gets dumped
to tempStorage (12% memoryUsage)
> - messages persisted in database
> - producer throttling does NOT occur, potentially b/c memoryUsage is at 0% in this peak/burst
scenario when activmq stops responding
> - activemq process hangs at 104% tempUsage, 0% memoryUsage, and can't be shutdown without
force kill
> commands:
> Start amq:
> /bin$ ./activemq console
> start producer:
> ant producer -Ddurable=true -DsleepTime=0
> (Bug experienced with higher sleep times also.)
> if you want to use consumers:
> ant consumer -Durl=tcp://localhost:61616?jms.prefetchPolicy.queuePrefetch=1
> - watch memory and disk usage in jconsole
> http://tmielke.blogspot.com/2011/02/observations-on-activemqs-temp-storage.html

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