tez-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Zhiyuan Yang (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (TEZ-3831) Reduce Unordered memory needed for storing empty completed events
Date Fri, 05 Jan 2018 00:18:22 GMT

     [ https://issues.apache.org/jira/browse/TEZ-3831?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Zhiyuan Yang closed TEZ-3831.
-----------------------------

> 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
>             Fix For: 0.9.1
>
>         Attachments: Screen Shot 2017-09-13 at 4.55.11 PM.png, TEZ-3831.001-addendum.patch,
TEZ-3831.001.patch
>
>
> 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