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https://issues.apache.org/jira/browse/AMQ-6940?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16418927#comment-16418927
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Christopher L. Shannon edited comment on AMQ-6940 at 3/29/18 1:01 PM:
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I think that should be doable. I think we would need to include the
Destination as well but basically could store a list of a new type of object
for dispatched messages and that new object would just contain the message id,
size, and destination reference (which is already tracked in memory in another
map). I'll work on a patch.
was (Author: christopher.l.shannon):
I think that should be doable. I think we would need to include the
ActiveMQDestination as well but basically could store a list of a new type of
object for dispatched messages and that new object would just contain the
message id, size, and activemq destination which are all small. I'll work on a
patch.
> Significant memory footprint increase from 5.8.0 to 5.15.3
> ----------------------------------------------------------
>
> Key: AMQ-6940
> URL: https://issues.apache.org/jira/browse/AMQ-6940
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Affects Versions: 5.15.3
> Environment: Java jdk1.8.0_144
> OS Linux 4.4.19-29.55.amzn1.x86_64
> Reporter: Johno Crawford
> Priority: Major
> Attachments: activemq.xml, amq_heap2.png, messageid_analysis.png
>
>
> Recently we upgraded from 5.8.0 to 5.15.3 on one of our environments and
> found the broker running out of memory with the old broker configurations.
> I suspect this may be related to the new inflight message size calculation
> but haven't been able to create a reproducer just yet.
> Broker JVM running with opts
> {code:java}
> -Xss256k -Xms600m -Xmx600m -Xmn128m -Dfile.encoding=ISO-8859-1
> -Dlog4j.watchDelay=60000 -XX:+PrintGCDetails -XX:+PrintGCTimeStamps
> -XX:+PrintGCDateStamps -XX:+PrintPromotionFailure -XX:PrintFLSStatistics=1
> -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+PrintClassHistogram -verbose:gc
> -Dsun.rmi.dgc.client.gcInterval=7200000
> -Dsun.rmi.dgc.server.gcInterval=7200000
> {code}
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