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From "Pallavi Rao (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FALCON-1410) Entity submit fails when multiple threads try submitting same definition
Date Fri, 04 Sep 2015 06:32:46 GMT

    [ https://issues.apache.org/jira/browse/FALCON-1410?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14730384#comment-14730384
] 

Pallavi Rao commented on FALCON-1410:
-------------------------------------

+1 for the patch

> Entity submit fails when multiple threads try submitting same definition
> ------------------------------------------------------------------------
>
>                 Key: FALCON-1410
>                 URL: https://issues.apache.org/jira/browse/FALCON-1410
>             Project: Falcon
>          Issue Type: Bug
>          Components: prism
>            Reporter: Pragya Mittal
>            Assignee: sandeep samudrala
>         Attachments: FALCON-1410-v1.patch, FALCON-1410-v2.patch, FALCON-1410.patch
>
>
> As part of submit feature we can submit entity any number of times and it will succeed,
given the condition entity definition remains same. But when multiple threads try submitting
common entity definition, it results in entity submission failure. Following is the stack
trace.
> {code}
> 2015-08-19 05:26:38,201 ERROR - [357703038@qtp-212921632-197 - 4d3d611e-352c-40f2-94db-95ae53657e9b:pragya:POST//entities/submit/cluster]
~ Unable to persist entity object (AbstractEntityManager:199)
> org.apache.falcon.entity.store.EntityAlreadyExistsException: (cluster) A99ac20e9-bb8bc0fa
already registered with configuration store. Can't be submitted again. Try removing before
submitting.
>         at org.apache.falcon.entity.store.ConfigurationStore.publish(ConfigurationStore.java:222)
>         at org.apache.falcon.resource.AbstractEntityManager.submitInternal(AbstractEntityManager.java:413)
>         at org.apache.falcon.resource.AbstractEntityManager.submit(AbstractEntityManager.java:196)
>         at org.apache.falcon.resource.proxy.SchedulableEntityManagerProxy.submit_aroundBody0(SchedulableEntityManagerProxy.java:144)
>         at org.apache.falcon.resource.proxy.SchedulableEntityManagerProxy$AjcClosure1.run(SchedulableEntityManagerProxy.java:1)
>         at org.aspectj.runtime.reflect.JoinPointImpl.proceed(JoinPointImpl.java:149)
>         at org.apache.falcon.aspect.AbstractFalconAspect.logAroundMonitored(AbstractFalconAspect.java:51)
>         at org.apache.falcon.resource.proxy.SchedulableEntityManagerProxy.submit(SchedulableEntityManagerProxy.java:119)
>         at sun.reflect.GeneratedMethodAccessor32.invoke(Unknown Source)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:497)
>         at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60)
>         at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$TypeOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:185)
>         at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75)
> {code}



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