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Posted to common-issues@hadoop.apache.org by "Rahul Shrivastava (JIRA)" <ji...@apache.org> on 2017/04/24 06:12:04 UTC
[jira] [Commented] (HADOOP-14348) Need HDFS Health scripts for
monitoring datanode
[ https://issues.apache.org/jira/browse/HADOOP-14348?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15980752#comment-15980752 ]
Rahul Shrivastava commented on HADOOP-14348:
--------------------------------------------
[~apurtell]
> Need HDFS Health scripts for monitoring datanode
> -------------------------------------------------
>
> Key: HADOOP-14348
> URL: https://issues.apache.org/jira/browse/HADOOP-14348
> Project: Hadoop Common
> Issue Type: Bug
> Components: scripts
> Reporter: Rahul Shrivastava
>
> Sick machines cause issues, that HDFS will not automatically remediate that.
> Upon a bad health, the DN should either stop sending block reports, simply shut itself down, or indicate the problem in some other way.
> We need a script to achieve this for DN.
> MapReduceV1 had something, see https://issues.apache.org/jira/browse/MAPREDUCE-211 . Hadoop-common moved into hadoop-yarn-project for Hadoop v2, meaning we have a solution for YARN but are lacking what we need in HDFS.
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