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Posted to mapreduce-issues@hadoop.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2022/05/03 03:08:00 UTC
[jira] [Work logged] (MAPREDUCE-7369) MapReduce tasks timing out when spends more time on MultipleOutputs#close
[ https://issues.apache.org/jira/browse/MAPREDUCE-7369?focusedWorklogId=765266&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-765266 ]
ASF GitHub Bot logged work on MAPREDUCE-7369:
---------------------------------------------
Author: ASF GitHub Bot
Created on: 03/May/22 03:07
Start Date: 03/May/22 03:07
Worklog Time Spent: 10m
Work Description: iwasakims commented on code in PR #4247:
URL: https://github.com/apache/hadoop/pull/4247#discussion_r863342147
##########
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/resources/mapred-default.xml:
##########
@@ -286,6 +286,13 @@
</description>
</property>
+<property>
+ <name>mapreduce.task.enable.ping-for-liveliness-check</name>
+ <value>true</value>
Review Comment:
The value must be same with the DEFAULT_MR_TASK_ENABLE_PING_FOR_LIVELINESS_CHECK.
Issue Time Tracking
-------------------
Worklog Id: (was: 765266)
Time Spent: 40m (was: 0.5h)
> MapReduce tasks timing out when spends more time on MultipleOutputs#close
> -------------------------------------------------------------------------
>
> Key: MAPREDUCE-7369
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7369
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Affects Versions: 3.3.1
> Reporter: Prabhu Joseph
> Assignee: Ashutosh Gupta
> Priority: Major
> Labels: pull-request-available
> Attachments: MAPREDUCE-7369.001.patch
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> MapReduce tasks timing out when spends more time on MultipleOutputs#close. MultipleOutputs#closes takes more time when there are multiple files to be closed & there is a high latency in closing a stream.
> {code}
> 2021-11-01 02:45:08,312 INFO [AsyncDispatcher event handler] org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl: Diagnostics report from attempt_1634949471086_61268_m_001115_0: AttemptID:attempt_1634949471086_61268_m_001115_0 Timed out after 300 secs
> {code}
> MapReduce task timeout can be increased but it is tough to set the right timeout value. The timeout can be disabled with 0 but that might lead to hanging tasks not getting killed.
> The tasks are sending the ping every 3 seconds which are not honored by ApplicationMaster. It expects the status information which won't be send during MultipleOutputs#close. This jira is to add a config which considers the ping from task as part of Task Liveliness Check in the ApplicationMaster.
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