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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6480) archive-logs tool may miss applications
Date Fri, 25 Sep 2015 22:30:05 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6480?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14908774#comment-14908774
] 

Hudson commented on MAPREDUCE-6480:
-----------------------------------

FAILURE: Integrated in Hadoop-trunk-Commit #8520 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/8520/])
MAPREDUCE-6480. archive-logs tool may miss applications (rkanter) (rkanter: rev d3c49e76624b7e42a1321c649a1d7bb9906b3073)
* hadoop-mapreduce-project/CHANGES.txt
* hadoop-tools/hadoop-archive-logs/dev-support/findbugs-exclude.xml
* hadoop-tools/hadoop-archive-logs/src/main/java/org/apache/hadoop/tools/HadoopArchiveLogs.java
* hadoop-tools/hadoop-archive-logs/src/test/java/org/apache/hadoop/tools/TestHadoopArchiveLogs.java
* hadoop-tools/hadoop-archive-logs/pom.xml


> archive-logs tool may miss applications
> ---------------------------------------
>
>                 Key: MAPREDUCE-6480
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6480
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 2.8.0
>            Reporter: Robert Kanter
>            Assignee: Robert Kanter
>             Fix For: 2.8.0
>
>         Attachments: MAPREDUCE-6480.001.patch, MAPREDUCE-6480.002.patch, MAPREDUCE-6480.003.patch
>
>
> MAPREDUCE-6415 added a tool to archive aggregated logs into HAR files.  It seeds the
initial list of applications to process based on apps which have finished aggregated, according
to the RM.  However, the RM doesn't remember completed applications forever (e.g. failover),
so it's possible for the tool to miss applications if they're no longer in the RM.  
> Instead, we should do the following:
> # Seed the initial list of apps based on the aggregated log directories
> # Make the RM not consider applications "complete" until their log aggregation has reached
a terminal state (i.e. DISABLED, SUCCEEDED, FAILED, TIME_OUT).  
> #2 will allow #1 to assume that any apps not found in the RM are done aggregating.  #1
on it's own should cover most cases though



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