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https://issues.apache.org/jira/browse/FALCON-1565?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15046938#comment-15046938
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Ajay Yadava commented on FALCON-1565:
-------------------------------------
[~jakub_havlik] The solution for this should be to show the error message only
instead of stacktrace. This is the convention that we are following in Falcon.
However, the message should reflect the underlying cause and not the JAXB
issues. Any client consuming the result can distinguish based on the status
code of the response if it needs to parse the result to get InstancesResult or
error message.
> Listing API non-intuitive response if time > endTime
> ----------------------------------------------------
>
> Key: FALCON-1565
> URL: https://issues.apache.org/jira/browse/FALCON-1565
> Project: Falcon
> Issue Type: Bug
> Affects Versions: 0.8
> Environment: QA
> Reporter: Pragya Mittal
> Assignee: Praveen Adlakha
> Labels: newbie
> Fix For: 0.9
>
>
> While listing for an entity with time > endTime, response shows stack trace.
> Instead error mesage should be shown as response.
> Feed definition is :
> {noformat}
> <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
> <feed name="sla-feed" description="clicks log" xmlns="uri:falcon:feed:0.1">
> <partitions>
> <partition name="country"/>
> <partition name="colo"/>
> </partitions>
> <frequency>minutes(2)</frequency>
> <sla slaLow="minutes(1)" slaHigh="minutes(3)"/>
> <timezone>UTC</timezone>
> <late-arrival cut-off="hours(6)"/>
> <clusters>
> <cluster name="A9e7e0672-e02bcc65">
> <validity start="2015-10-28T11:58Z" end="2015-10-30T11:17Z"/>
> <retention limit="days(1000000)" action="delete"/>
> </cluster>
> </clusters>
> <locations>
> <location type="data"
> path="/tmp/falcon-regression/FeedSlaMonitoring/input/${YEAR}/${MONTH}/${DAY}/${HOUR}/${MINUTE}"/>
> <location type="stats" path="/projects/falcon/clicksStats"/>
> <location type="meta" path="/projects/falcon/clicksMetaData"/>
> </locations>
> <ACL owner="pragya" group="dataqa" permission="*"/>
> <schema location="/schema/clicks" provider="protobuf"/>
> <properties>
> <property name="field1" value="value1"/>
> </properties>
> </feed>
> {noformat}
> Listing API response
> {noformat}
> dataqa@lda01:/mnt/users/pragya/defn/sla$ falcon instance -type feed -name
> sla-feed -start 2015-10-30T11:20Z -listing
> ERROR: Bad Request;<?xml version="1.0" encoding="UTF-8"
> standalone="yes"?><feedInstanceResult><status>FAILED</status><message>ua1/org.apache.falcon.FalconException::javax.ws.rs.WebApplicationException:
> javax.xml.bind.UnmarshalException: unexpected element (uri:"",
> local:"instancesResult"). Expected elements are
> <{}feedInstanceResult>,<{}instance>,<{}result>
> {noformat}
> Stack trace is :
> {noformat}
> 2015-10-28 12:15:54,414 ERROR - [1963200284@qtp-2030538903-5 -
> 0f02eeb7-1f02-4bea-bbb7-85d5e61b568f:dataqa:GET//instance/listing/feed/sla-feed]
> ~ Failed to get instances listing (AbstractInstanceManager:528)
> org.apache.falcon.FalconException: Specified End date 2015-10-28T12:15Z is
> before the entity was scheduled 2015-10-30T11:20Z
> at
> org.apache.falcon.resource.AbstractInstanceManager.getStartAndEndDate(AbstractInstanceManager.java:853)
> at
> org.apache.falcon.resource.AbstractInstanceManager.getStartAndEndDate(AbstractInstanceManager.java:842)
> at
> org.apache.falcon.resource.AbstractInstanceManager.getListing(AbstractInstanceManager.java:524)
> at
> org.apache.falcon.resource.InstanceManager.getListing(InstanceManager.java:141)
> 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: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)
> {noformat}
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