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From "Guillaume Nodet (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (FELIX-5217) Fileinstall is handling removal of many files inefficiently
Date Wed, 16 Mar 2016 08:26:33 GMT

     [ https://issues.apache.org/jira/browse/FELIX-5217?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Guillaume Nodet resolved FELIX-5217.
------------------------------------
       Resolution: Fixed
    Fix Version/s: fileinstall-3.5.4

> Fileinstall is handling removal of many files inefficiently
> -----------------------------------------------------------
>
>                 Key: FELIX-5217
>                 URL: https://issues.apache.org/jira/browse/FELIX-5217
>             Project: Felix
>          Issue Type: Bug
>          Components: File Install
>            Reporter: Fabian Lange
>            Assignee: Guillaume Nodet
>             Fix For: fileinstall-3.5.4
>
>
> I am currently debugging a performance issue with file install.
> The thread is very hot on:
> java.util.HashMap.hash(java.lang.Object)
> java.util.HashMap.put(java.lang.Object, java.lang.Object)
> java.util.HashSet.add(java.lang.Object)
> java.util.AbstractCollection.addAll(java.util.Collection) (line: 344)
> org.apache.felix.fileinstall.internal.WatcherScanner.scan(boolean) (line: 100)
> org.apache.felix.fileinstall.internal.DirectoryWatcher.run() (line: 302)
> What I see in WatcherScanner, is that it potentially adds the same elements over and
over again.
> While I am sure that this is not the root cause, I suggest to change the method to avoid
this. (submitting pr in a second)



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