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From "Young Chen (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-8895) Improve YARN
Date Wed, 17 Oct 2018 00:26:00 GMT
Young Chen created YARN-8895:
--------------------------------

             Summary: Improve YARN 
                 Key: YARN-8895
                 URL: https://issues.apache.org/jira/browse/YARN-8895
             Project: Hadoop YARN
          Issue Type: Improvement
            Reporter: Young Chen
            Assignee: Young Chen


Currently identifying error sources can be quite difficult, as they are written into an unstructured
string "diagnostics" field. This is present in container statuses returned to the RM and in
application attempts in the RM. These errors are difficult to classify without hard-coding diagnostic
string searches.

This Jira aims to add a structured error field in NM and RM that preserves failure information
and source component to enable faster and clearer error diagnosis.

Old error:

E.g.: 
Application application_1539325316309_0001 failed 1 times due to AM Container for appattempt_1539325316309_0001_000001
exited with exitCode: 57005
For more detailed output, check application tracking page:http://XXXXXXXX:80/cluster/app/application_1539325316309_0001Then,
click on links to logs of each attempt.
Diagnostics: Container exited with a non-zero exit code 57005
Failing this attempt. Failing the application.
 
Proposed new error example:
{code:java}
{"errors":[{"errorId":"E_SYSTEM_AM_AMCRASHED",
"name":"AM_CRASHED","severity":"Error",
"component":"AM",
"source":"System",
"exitType":"CONTAINER_FINISHED","containerStatus":57005,
"description":"Application attempt appattempt_1539325316309_0001_000001 encountered an error",
"helpLink":"http://XXXXXXXXXXX:80/proxy/application_1539325316309_0001/"}]}
{code}
 
 



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