tez-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Jonathan Eagles (JIRA)" <j...@apache.org>
Subject [jira] [Created] (TEZ-3831) Reduce Unordered memory needed for storing empty completed events
Date Wed, 13 Sep 2017 21:49:00 GMT
Jonathan Eagles created TEZ-3831:
------------------------------------

             Summary: Reduce Unordered memory needed for storing empty completed events
                 Key: TEZ-3831
                 URL: https://issues.apache.org/jira/browse/TEZ-3831
             Project: Apache Tez
          Issue Type: Bug
            Reporter: Jonathan Eagles
            Assignee: Jonathan Eagles


the completedInputs blocking queue is used to store inputs for the UnorderedKVReader to consume.
With Auto-reduce parallelism enabled and nearly all empty inputs, the reader can't prune the
empty events from the blocking queue fast enough to keep up. In my scenario, an OOM occurred.




--
This message was sent by Atlassian JIRA
(v6.4.14#64029)

Mime
View raw message