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From "Harish Jaiprakash (JIRA)" <j...@apache.org>
Subject [jira] [Created] (TEZ-4028) Events not visible from proto history logging for s3a filesystem until dag completes.
Date Tue, 18 Dec 2018 10:56:00 GMT
Harish Jaiprakash created TEZ-4028:
--------------------------------------

             Summary: Events not visible from proto history logging for s3a filesystem until
dag completes.
                 Key: TEZ-4028
                 URL: https://issues.apache.org/jira/browse/TEZ-4028
             Project: Apache Tez
          Issue Type: Bug
            Reporter: Harish Jaiprakash
            Assignee: Harish Jaiprakash


The events are not visible in the files because  s3 filesystem
* flush writes to local disk and only upload/commit to s3 on close.
* does not support append

As an initial fix we log the dag submitted, initialized and started events into a file and
these can be read to get the dag plan, config from the AM. The counters are anyways not available
until the dag completes.

The in-progress information cannot be read, this can be obtained from the AM once we have
the above events.



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