Charan Hebri created YARN-8129:
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Summary: Improve error message for invalid value in fields
attributes
Key: YARN-8129
URL: https://issues.apache.org/jira/browse/YARN-8129
Project: Hadoop YARN
Issue Type: Improvement
Components: ATSv2
Reporter: Charan Hebri
Query with invalid values for the 'fields' attributes throws a message that
isn't very informative.
Reader log,
{noformat}
2018-04-09 08:59:46,069 INFO reader.TimelineReaderWebServices
(TimelineReaderWebServices.java:getEntities(595)) - Received URL
/ws/v2/timeline/users/hrt_qa/flows/test_flow/apps?limit=3&fields=INFOS from
user hrt_qa
2018-04-09 08:59:46,070 INFO reader.TimelineReaderWebServices
(TimelineReaderWebServices.java:handleException(173)) - Processed URL
/ws/v2/timeline/users/hrt_qa/flows/test_flow/apps?limit=3&fields=INFOS but
encountered exception (Took 1 ms.){noformat}
Here INFOS is the invalid value for the fields attribute.
Response,
{noformat}
{
"exception": "BadRequestException",
"message": "java.lang.Exception: No enum constant
org.apache.hadoop.yarn.server.timelineservice.storage.TimelineReader.Field.INFOS",
"javaClassName": "org.apache.hadoop.yarn.webapp.BadRequestException"
}{noformat}
The message shouldn't ideally contain the enum information.
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