[jboss-jira] [JBoss JIRA] Assigned: (JBAS-7728) IterableTimedVFSCache leaks disk space when cache values get expired

[Ales Justin (JIRA)]

     [ https://jira.jboss.org/jira/browse/JBAS-7728?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ales Justin reassigned JBAS-7728:
---------------------------------

    Assignee: Ales Justin


> IterableTimedVFSCache leaks disk space when cache values get expired
> --------------------------------------------------------------------
>
>                 Key: JBAS-7728
>                 URL: https://jira.jboss.org/jira/browse/JBAS-7728
>             Project: JBoss Application Server
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>    Affects Versions: JBossAS-5.1.0.GA
>            Reporter: Ari Savolainen
>            Assignee: Ales Justin
>
> When resolving virtual files, the TimedCachePolicy is checked for the
> expiration of the corresponding root context. If it is expired, the root is
> unpackaged again and tried to be readded into the cache. When updating the
> cache, method TimedCachePolicy.peek() is used to find out if the object is
> already present. The peek method does not take into account whether the value
> is expired or not and the object is never added into the cache (or the cache
> entry refreshed like in method TimedCachePolicy.get()). This is repeated over
> and over again and the disk gets eventually filled.
> The problem can be reproduced for example by deploying an enterprise
> application with maven jboss plugin: mvn jboss:deploy. (It uses method deploy
> of service jboss.system:service=MainDeployer through jmx-console.)
> Here are the corresponding stack trace fragments:
> 1) Check for the expiration
> http-0.0.0.0-8443-1 at 12019 daemon, prio=5, in group 'jboss', status: 'RUNNING'
> 	  at org.jboss.util.TimedCachePolicy.getValidKeys(TimedCachePolicy.java:358)
> 	  at org.jboss.virtual.plugins.cache.IterableTimedVFSCache.findContext(IterableTimedVFSCache.java:65)
> 	  at org.jboss.virtual.plugins.cache.CombinedVFSCache.findContext(CombinedVFSCache.java:116)
> 	  at org.jboss.virtual.plugins.registry.DefaultVFSRegistry.getFile(DefaultVFSRegistry.java:91)
> 	  at org.jboss.virtual.plugins.registry.DefaultVFSRegistry.getFile(DefaultVFSRegistry.java:140)
> 	  at org.jboss.virtual.VFS.getRoot(VFS.java:264)
> 	  at org.jboss.virtual.plugins.vfs.VirtualFileURLConnection.resolveVirtualFile(VirtualFileURLConnection.java:105)
> 2) Attempt to readd the root
> http-0.0.0.0-8443-1 at 12019 daemon, prio=5, in group 'jboss', status: 'RUNNING'
> 	  at org.jboss.util.TimedCachePolicy.peek(TimedCachePolicy.java:283)
> 	  at org.jboss.virtual.plugins.cache.CachePolicyVFSCache.putContext(CachePolicyVFSCache.java:143)
> 	  at org.jboss.virtual.plugins.cache.AbstractVFSCache.putContext(AbstractVFSCache.java:94)
> 	  at org.jboss.virtual.plugins.cache.CombinedVFSCache.putContext(CombinedVFSCache.java:140)
> 	  at org.jboss.virtual.plugins.registry.DefaultVFSRegistry.addContext(DefaultVFSRegistry.java:74)
> 	  at org.jboss.virtual.VFS.getVFS(VFS.java:235)
> 	  at org.jboss.virtual.VFS.createNewRoot(VFS.java:249)
> 	  at org.jboss.virtual.VFS.getRoot(VFS.java:265)
> 	  at org.jboss.virtual.plugins.vfs.VirtualFileURLConnection.resolveVirtualFile(VirtualFileURLConnection.java:105)

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