David Israel created AMQ-4136:
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Summary: 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
[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
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