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Posted to dev@felix.apache.org by "Felix Meschberger (JIRA)" <ji...@apache.org> on 2010/02/17 15:41:28 UTC

[jira] Created: (FELIX-2090) Multiple concurrency issues under heavy "stop/start" load

Multiple concurrency issues under heavy "stop/start" load
---------------------------------------------------------

                 Key: FELIX-2090
                 URL: https://issues.apache.org/jira/browse/FELIX-2090
             Project: Felix
          Issue Type: Bug
          Components: Declarative Services (SCR)
    Affects Versions:  scr-1.4.0
            Reporter: Felix Meschberger


Under certain circumstances -- mostly an update of much of the system induced by tools like FileInstall or Sling JCR Install -- concurrency issues between starting and stopping components may happen and cause all sorts of error messages:


(1) Probably Activator method call failure, cannot be logged, because the log method itself threw an NPE

12.02.2010 19:08:56.882 *ERROR* [SCR Component Actor] org.apache.felix.scr Unexpected problem executing task Enable Component: org.apache.sling.engine.impl.SlingMainServlet (17) (java.lang.NullPointerException) java.lang.NullPointerException
	at org.apache.felix.scr.impl.BundleComponentActivator.log(BundleComponentActivator.java:590)
	at org.apache.felix.scr.impl.BundleComponentActivator.log(BundleComponentActivator.java:565)
	at org.apache.felix.scr.impl.manager.AbstractComponentManager.log(AbstractComponentManager.java:496)
	at org.apache.felix.scr.impl.helper.BaseMethod.invokeMethod(BaseMethod.java:232)


(2) After calling the activate method, the service registration fails because the bundle has in the meantime been stopped (or is being stopped):

12.02.2010 19:08:57.882 *ERROR* [SCR Component Actor] org.apache.felix.scr Unexpected problem executing task Enable Component: org.apache.sling.scripting.javascript.internal.RhinoJavaScriptEngineFactory (27) (java.lang.IllegalStateException: Can only register services while bundle is active or activating.) java.lang.IllegalStateException: Can only register services while bundle is active or activating.
	at org.apache.felix.framework.Felix.registerService(Felix.java:2681)
	at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:252)
	at org.apache.felix.scr.impl.manager.AbstractComponentManager.registerService(AbstractComponentManager.java:414)
	at org.apache.felix.scr.impl.manager.AbstractComponentManager.registerComponentService(AbstractComponentManager.java:425)
	at org.apache.felix.scr.impl.manager.AbstractComponentManager$Unsatisfied.activate(AbstractComponentManager.java:1009)
	at org.apache.felix.scr.impl.manager.AbstractComponentManager.activateInternal(AbstractComponentManager.java:298)


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[jira] Closed: (FELIX-2090) Multiple concurrency issues under heavy "stop/start" load

Posted by "Felix Meschberger (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/FELIX-2090?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Felix Meschberger closed FELIX-2090.
------------------------------------


Apache Felix Declarative Services 1.6.0 has been released. The issues are now closed.

> Multiple concurrency issues under heavy "stop/start" load
> ---------------------------------------------------------
>
>                 Key: FELIX-2090
>                 URL: https://issues.apache.org/jira/browse/FELIX-2090
>             Project: Felix
>          Issue Type: Bug
>          Components: Declarative Services (SCR)
>    Affects Versions:  scr-1.4.0
>            Reporter: Felix Meschberger
>            Assignee: Felix Meschberger
>             Fix For:  scr-1.6.0
>
>
> Under certain circumstances -- mostly an update of much of the system induced by tools like FileInstall or Sling JCR Install -- concurrency issues between starting and stopping components may happen and cause all sorts of error messages:
> (1) Probably Activator method call failure, cannot be logged, because the log method itself threw an NPE
> 12.02.2010 19:08:56.882 *ERROR* [SCR Component Actor] org.apache.felix.scr Unexpected problem executing task Enable Component: org.apache.sling.engine.impl.SlingMainServlet (17) (java.lang.NullPointerException) java.lang.NullPointerException
> 	at org.apache.felix.scr.impl.BundleComponentActivator.log(BundleComponentActivator.java:590)
> 	at org.apache.felix.scr.impl.BundleComponentActivator.log(BundleComponentActivator.java:565)
> 	at org.apache.felix.scr.impl.manager.AbstractComponentManager.log(AbstractComponentManager.java:496)
> 	at org.apache.felix.scr.impl.helper.BaseMethod.invokeMethod(BaseMethod.java:232)
> (2) After calling the activate method, the service registration fails because the bundle has in the meantime been stopped (or is being stopped):
> 12.02.2010 19:08:57.882 *ERROR* [SCR Component Actor] org.apache.felix.scr Unexpected problem executing task Enable Component: org.apache.sling.scripting.javascript.internal.RhinoJavaScriptEngineFactory (27) (java.lang.IllegalStateException: Can only register services while bundle is active or activating.) java.lang.IllegalStateException: Can only register services while bundle is active or activating.
> 	at org.apache.felix.framework.Felix.registerService(Felix.java:2681)
> 	at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:252)
> 	at org.apache.felix.scr.impl.manager.AbstractComponentManager.registerService(AbstractComponentManager.java:414)
> 	at org.apache.felix.scr.impl.manager.AbstractComponentManager.registerComponentService(AbstractComponentManager.java:425)
> 	at org.apache.felix.scr.impl.manager.AbstractComponentManager$Unsatisfied.activate(AbstractComponentManager.java:1009)
> 	at org.apache.felix.scr.impl.manager.AbstractComponentManager.activateInternal(AbstractComponentManager.java:298)

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[jira] Resolved: (FELIX-2090) Multiple concurrency issues under heavy "stop/start" load

Posted by "Felix Meschberger (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/FELIX-2090?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Felix Meschberger resolved FELIX-2090.
--------------------------------------

         Assignee: Felix Meschberger
    Fix Version/s:  scr-1.4.2
       Resolution: Fixed

With the implementation of synchronous component activation described in FELIX-2368, this problem has probably been solved.

Therefore I close this issue fixed. Should it occurr again (or in a similar way), a new issue should be created.

> Multiple concurrency issues under heavy "stop/start" load
> ---------------------------------------------------------
>
>                 Key: FELIX-2090
>                 URL: https://issues.apache.org/jira/browse/FELIX-2090
>             Project: Felix
>          Issue Type: Bug
>          Components: Declarative Services (SCR)
>    Affects Versions:  scr-1.4.0
>            Reporter: Felix Meschberger
>            Assignee: Felix Meschberger
>             Fix For:  scr-1.4.2
>
>
> Under certain circumstances -- mostly an update of much of the system induced by tools like FileInstall or Sling JCR Install -- concurrency issues between starting and stopping components may happen and cause all sorts of error messages:
> (1) Probably Activator method call failure, cannot be logged, because the log method itself threw an NPE
> 12.02.2010 19:08:56.882 *ERROR* [SCR Component Actor] org.apache.felix.scr Unexpected problem executing task Enable Component: org.apache.sling.engine.impl.SlingMainServlet (17) (java.lang.NullPointerException) java.lang.NullPointerException
> 	at org.apache.felix.scr.impl.BundleComponentActivator.log(BundleComponentActivator.java:590)
> 	at org.apache.felix.scr.impl.BundleComponentActivator.log(BundleComponentActivator.java:565)
> 	at org.apache.felix.scr.impl.manager.AbstractComponentManager.log(AbstractComponentManager.java:496)
> 	at org.apache.felix.scr.impl.helper.BaseMethod.invokeMethod(BaseMethod.java:232)
> (2) After calling the activate method, the service registration fails because the bundle has in the meantime been stopped (or is being stopped):
> 12.02.2010 19:08:57.882 *ERROR* [SCR Component Actor] org.apache.felix.scr Unexpected problem executing task Enable Component: org.apache.sling.scripting.javascript.internal.RhinoJavaScriptEngineFactory (27) (java.lang.IllegalStateException: Can only register services while bundle is active or activating.) java.lang.IllegalStateException: Can only register services while bundle is active or activating.
> 	at org.apache.felix.framework.Felix.registerService(Felix.java:2681)
> 	at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:252)
> 	at org.apache.felix.scr.impl.manager.AbstractComponentManager.registerService(AbstractComponentManager.java:414)
> 	at org.apache.felix.scr.impl.manager.AbstractComponentManager.registerComponentService(AbstractComponentManager.java:425)
> 	at org.apache.felix.scr.impl.manager.AbstractComponentManager$Unsatisfied.activate(AbstractComponentManager.java:1009)
> 	at org.apache.felix.scr.impl.manager.AbstractComponentManager.activateInternal(AbstractComponentManager.java:298)

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