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From "Ying Zheng (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FALCON-1969) Provide server-side error details on CLI, if any
Date Wed, 18 May 2016 01:18:12 GMT
Ying Zheng created FALCON-1969:
----------------------------------

             Summary: Provide server-side error details on CLI, if any
                 Key: FALCON-1969
                 URL: https://issues.apache.org/jira/browse/FALCON-1969
             Project: Falcon
          Issue Type: Bug
            Reporter: Ying Zheng
            Assignee: Ying Zheng


Current CLI infrastructure only show "Internal Server Error" if there is a server-side error.
Should print error details on client side for the user to better understand the cause.

See example output from CLI and Falcon server log below. The CLI doesn't provide any detailed
hints when the user forgets to add the required jobName property in the input. This information
can only be found in Falcon server log. We should provide the hint "Missing extension property:
jobClusterName" on CLI as well.

{code}
[hrt_qa@os-r6-kvphku-falcon-multicluster-15 falcon]$ falcon extension -submit -extensionName
hdfs-mirroring -file hdfs-mirroring.properties
Hadoop home is set, adding libraries from '/usr/hdp/2.5.0.0-435/hadoop/bin/hadoop classpath'
into falcon classpath
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/grid/0/hdp/2.5.0.0-435/falcon/client/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/grid/0/hdp/2.5.0.0-435/falcon/client/lib/falcon-cli-0.10.0.2.5.0.0-435.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/grid/0/hdp/2.5.0.0-435/hadoop/lib/slf4j-log4j12-1.7.10.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
ERROR: Internal Server Error;
{code}

{code}
2016-05-12 09:22:49,391 ERROR - [1579321407@qtp-1366342900-83 - ba49c221-048c-4784-ad05-0008be69a43b:hrt_qa:POST//extension/submit/hdfs-mirroring]
~ Error when submitting extension job:  (ExtensionManager:273)
org.apache.falcon.FalconException: Missing extension property: jobClusterName
        at org.apache.falcon.extensions.Extension.validateProperties(Extension.java:45)
        at org.apache.falcon.extensions.Extension.getEntities(Extension.java:68)
        at org.apache.falcon.resource.extensions.ExtensionManager.generateEntities(ExtensionManager.java:444)
        at org.apache.falcon.resource.extensions.ExtensionManager.submit(ExtensionManager.java:268)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        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)
        at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:288)
        at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
        at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)
        at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
{code}



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