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From "Zach Calvert (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CAMEL-5058) Bug: Unique Endpoints Leaking in DefaultInflightRepository
Date Mon, 05 Mar 2012 20:01:59 GMT

    [ https://issues.apache.org/jira/browse/CAMEL-5058?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13222566#comment-13222566
] 

Zach Calvert commented on CAMEL-5058:
-------------------------------------

I'm not quite sure this fixes our problem.  We aren't creating a true route.  We are using
a ProducerTemplate to send a Message to an Endpoint, and the Endpoint is unique, created at
runtime, and would essentially create a new entry in the ConcurrentHashMap stored in the DefaultInflightRepository.

Ideally, when remove is called with an Exchange, if the reference count becomes 0, then the
entry is removed from the Map.
                
> Bug: Unique Endpoints Leaking in DefaultInflightRepository
> ----------------------------------------------------------
>
>                 Key: CAMEL-5058
>                 URL: https://issues.apache.org/jira/browse/CAMEL-5058
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-core
>    Affects Versions: 2.9.0
>            Reporter: Zach Calvert
>            Assignee: Claus Ibsen
>             Fix For: 2.10.0, 2.9.2
>
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> If you have an endpoint protocol which uses unique URIs you will leak Strings in the
HashMap stored in the DefaultInflightRepository (org.apache.camel.impl.DefaultInflightRepository)
> It seems there is a reference counting scheme in place, but it doesn't do a remove until
the "stop" method is called to shut the system down.  We are running XMPP endpoints, which
use a protocol like xmpp://someaccount@domain/password?to=someOtherAccount
> When there are 10 million accounts, not all of which are active, but all of which may
message at some time or another, no references are removed to the endpointCount.
> When the count becomes 0, the reference should be removed and the size method will still
return the appropriate result.
> Please be careful in the implementation to synchronize on some object (perhaps the AtomicInteger)
reflecting a read/write lock on the endpoint count modification.

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