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  1. Infinispan
  2. ISPN-4499

Prevent shadowing user-defined jgroups configuration file

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    Description

      When users create their own JGroups configuration file and name it the same way as default configuration files (jgroups-udp.xml / jgroups-tcp-xml / jgroups-ec2.xml), they might not be visible to the user application as they're shadowed by the default configuration files.

      Proposed solution:

      • place current jgroups configuration files into META-INF/configs folder (this folder doesn't have to have an obscure name such as "_internal" because of the following two points which complement the solution)
      • define order in which the config files are read by class loader (i.e. first scan user application, then path under META-INF/configs)
      • when Infinispan is started, log the path to the configuration file used, e.g.:
        2014-06-12 06:45:02,871 [thread-name] INFO  [package-name] Using JGroups configuration file 'jar:META-INF/example_configurations/jgroups/udp.xml'
        2014-06-12 06:45:02,871 [thread-name] INFO  [package-name] Using JGroups configuration file 'file:/app_home/config/jgroups-udp.xml'
        

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            mgencur Martin Gencur
            mgencur Martin Gencur
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