[jira] [Created] (ARIES-1084) Subsystem : Failure on restart after framework crash

["Stephen Flynn (JIRA)" <ji...@apache.org>]

Stephen Flynn created ARIES-1084:
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             Summary: Subsystem : Failure on restart after framework crash
                 Key: ARIES-1084
                 URL: https://issues.apache.org/jira/browse/ARIES-1084
             Project: Aries
          Issue Type: Bug
          Components: Subsystem
         Environment: Windows 7
Java 1.6.0_31

OSGi environment...

org.eclipse.osgi 3.8.2.v20130124-134944
slf4j.api 1.7.5
slf4j.simple 1.7.5
org.eclipse.equinox.region 1.1.0.v20120522-1841
org.eclipse.equinox.coordinator 1.1.0.v20120522-1841
org.apache.aries.util 1.1.0
org.apache.aries.proxy 1.0.1
org.apache.aries.blueprint 1.0.0
org.apache.aries.application.api 1.0.0
org.apache.aries.application.modeller 1.0.0
org.apache.aries.application.utils 1.0.0
org.apache.felix.resolver 1.0.0
org.apache.felix.bundlerepository 1.6.6
org.apache.aries.subsystem 1.0.0
            Reporter: Stephen Flynn


Situation : I set up OSGi framework, installed Aries subsystem (and all required bundles), installed a single trivial feature subsystem containing a single bundle resource. All worked as expected in normal operation with install/start/stop/uninstall operations working as described in section 134.14 of the OSGi Enterprise Release 5 spec. Starting and stopping the framework started and stopped installed subsystem's bundle as expected.

Problem : When the framework is not closed down gracefully (say JVM crash) the subsystem's bundle does not restart. The proximate cause of this appears to be that...

    The state for each subsystem is persisted in the DEPLOYMENT.MF file, under the header "AriesSubsystem-State", stored in the Aries subsystem bundle's data storage area.
    The state is changed between RESOLVED and ACTIVE (and back again) as the bundle is started and stopped in a gracefully way.
    A JVM crash leaves the "AriesSubsystem-State" value in the file as ACTIVE for both root and installed subsystem.
    Upon restart the my feature subsystem's resource bundle is no longer started as Aries (presumably) assumes it is already ACTIVE.

I'm fairly sure that the "AriesSubsystem-State" header is causing the problem because hand editing it in both root and installed DEPLOYMENT.MF files back to 'RESOLVED' prior to starting the framework solves the problem.


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