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https://issues.apache.org/jira/browse/KARAF-1218?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13213674#comment-13213674
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Achim Nierbeck commented on KARAF-1218:
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regarding the file-installer, afaik since it uses a service-factory, a thread
is created for every configuration found, so basically if you add another
configuration for another directory you end up with another thread. Another
thing, each of the file-installer thread can be configured differently
regarding scheduling and file-filtering. So I'd guess we better stick to those
two threads left over.
> Only use 1 thread for file installer watcher
> --------------------------------------------
>
> Key: KARAF-1218
> URL: https://issues.apache.org/jira/browse/KARAF-1218
> Project: Karaf
> Issue Type: Improvement
> Affects Versions: 2.2.5
> Reporter: Claus Ibsen
> Priority: Minor
>
> When running Apache Karaf 2.2.5 then we want to run it with as low overhead
> as possible. Out of the box it has around 30+ live threads running, which is
> a fair bit.
> We should try to consolidate if applicable. For example there is 2 separate
> threads for picking up file installer. This can be implemented as a single
> thread instead.
> {code}
> "fileinstall-/opt/apache-karaf-2.2.5/deploy" daemon prio=5 tid=7fa0cc26d800
> nid=0x1104ec000 in Object.wait() [1104eb000]
> java.lang.Thread.State: TIMED_WAITING (on object monitor)
> at java.lang.Object.wait(Native Method)
> - waiting on <7e0690610> (a
> org.apache.felix.fileinstall.internal.DirectoryWatcher)
> at
> org.apache.felix.fileinstall.internal.DirectoryWatcher.run(DirectoryWatcher.java:268)
> - locked <7e0690610> (a
> org.apache.felix.fileinstall.internal.DirectoryWatcher)
> "fileinstall-/opt/apache-karaf-2.2.5/etc" daemon prio=5 tid=7fa0cc26a800
> nid=0x1103e9000 in Object.wait() [1103e8000]
> java.lang.Thread.State: TIMED_WAITING (on object monitor)
> at java.lang.Object.wait(Native Method)
> - waiting on <7e068e778> (a
> org.apache.felix.fileinstall.internal.DirectoryWatcher)
> at
> org.apache.felix.fileinstall.internal.DirectoryWatcher.run(DirectoryWatcher.java:268)
> - locked <7e068e778> (a
> org.apache.felix.fileinstall.internal.DirectoryWatcher)
> {code}
> Those 2 thread should be a single thread, that just watches the 2 directories.
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