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https://issues.apache.org/jira/browse/AMQ-7135?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16741675#comment-16741675
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Heath Kesler commented on AMQ-7135:
-----------------------------------
Here is a link to the PR: https://github.com/apache/activemq/pull/337
> Deleting a destination with a large number of page files cause OOM.
> --------------------------------------------------------------------
>
> Key: AMQ-7135
> URL: https://issues.apache.org/jira/browse/AMQ-7135
> Project: ActiveMQ
> Issue Type: Bug
> Affects Versions: 5.15.8
> Reporter: Heath Kesler
> Priority: Major
>
> When removing (delete) a destination using the console an error is reported.
> It appears all the page files are batched into memory. If you have a large
> set of page files and a relatively small heap, this will cause the system to
> run out of memory.
> This can be reproduced by doing the following:
> env: heap size: 384MB
> 1. Create a “test” queue and send more than 2 millions of persistent messages
> with size of 100KB to the “test”queue (this take some times).
> 2. Delete “test” queue by clicking “delete” button on ActiveMQ Console.
> 3. Wait and broker will die eventually.
> 4. Broker won’t reboot successfully
> The observed error below can be seen in the logs.
> {{org.springframework.web.util.NestedServletException: Handler dispatch
> failed; nested exception is java.lang.OutOfMemoryError: GC overhead limit
> exceeded}}
> {{ at
> org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:982)[spring-webmvc-4.3.18.RELEASE.jar:4.3.18.RELEASE]}}
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