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https://issues.apache.org/jira/browse/KARAF-6238?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16817865#comment-16817865
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ASF subversion and git services commented on KARAF-6238:
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Commit f8208905512ac9a0a0f00e4c2dfeb7ef5c563f9b in karaf's branch
refs/heads/karaf-4.2.x from Grzegorz Grzybek
[ https://gitbox.apache.org/repos/asf?p=karaf.git;h=f820890 ]
[KARAF-6238] Synchronized access to config.properties when downloading custom
distro's libraries
(cherry picked from commit 24eb7a7b0992fd9e0570e4621fdd27572e3b0114)
> org.apache.karaf.profile.assembly.Builder#downloadLibraries is not
> synchronized
> -------------------------------------------------------------------------------
>
> Key: KARAF-6238
> URL: https://issues.apache.org/jira/browse/KARAF-6238
> Project: Karaf
> Issue Type: Bug
> Reporter: Grzegorz Grzybek
> Assignee: Grzegorz Grzybek
> Priority: Blocker
> Fix For: 4.3.0, 4.2.5
>
>
> I had strange case. Running:
> {noformat}
> for n in {1..100}; do
> mvn clean install -DskipTests -f /path/to/custom-karaf-distro
> cp /path/to/custom-karaf-distro/target/assembly/etc/config.properties
> /data/tmp/config-$n.properties
> cat /path/to/custom-karaf-distro/target/assembly/etc/config.properties |
> sort > /data/tmp/config-$n-sorted.properties
> done
> {noformat}
> I was _usually_ getting the same config.propertie. But not always.
> Occasionally some extra packages were missing...
> Long story short, downloader uses 8 threads and
> {{org.apache.karaf.profile.assembly.Builder#downloadLibraries()}} uses the
> download callback without any synchronization...
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