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From "metatech (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CAMEL-7174) CacheManager should only be shutdown when last endpoint is stopped
Date Tue, 25 Aug 2015 13:17:45 GMT

    [ https://issues.apache.org/jira/browse/CAMEL-7174?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14711240#comment-14711240
] 

metatech commented on CAMEL-7174:
---------------------------------

BTW, shouldn't there be a "synchronized" in the "doStop()" method, which also modifies the
"cacheManager" variable ?

> CacheManager should only be shutdown when last endpoint is stopped
> ------------------------------------------------------------------
>
>                 Key: CAMEL-7174
>                 URL: https://issues.apache.org/jira/browse/CAMEL-7174
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-cache
>    Affects Versions: 2.8.5
>         Environment: ServiceMix 4.4.2
>            Reporter: metatech
>            Priority: Minor
>             Fix For: Future
>
>         Attachments: camel_multiple_cache.diff
>
>
> When multiple bundles contain routes with a "cache:" endpoint, if one bundle is stopped,
the cache from the other bundle stops working as well.
> Solution : in method doStop of class org.apache.camel.component.cache.CacheManagerFactory,
remove the call to cacheManager.shutdown().
> If really useful, a more elaborate reference counting mechanism could be used to stop
the CacheManager when the last endpoint is being stopped
> {code}
> Caused by: java.lang.IllegalStateException: The CacheManager has been shut down. It can
no longer be used.
> 	at net.sf.ehcache.CacheManager.checkStatus(CacheManager.java:1158)
> 	at net.sf.ehcache.CacheManager.cacheExists(CacheManager.java:1048)
> 	at org.apache.camel.component.cache.CacheEndpoint.initializeCache(CacheEndpoint.java:104)
> 	at org.apache.camel.component.cache.CacheProducer.process(CacheProducer.java:56)
> {code}



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