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From "Jayush Luniya (JIRA)" <>
Subject [jira] [Commented] (AMBARI-6926) HDFS to check data paths are mounted correctly
Date Tue, 17 Mar 2015 20:20:38 GMT


Jayush Luniya commented on AMBARI-6926:

Is this JIRA fixed and part of 2.0.0 release?

> HDFS to check data paths are mounted correctly
> ----------------------------------------------
>                 Key: AMBARI-6926
>                 URL:
>             Project: Ambari
>          Issue Type: Improvement
>          Components: ambari-agent
>    Affects Versions: 1.6.1
>            Reporter: Alejandro Fernandez
>            Assignee: Alejandro Fernandez
>             Fix For: 2.0.0
> When a drive fails and it is unmounted for service, if the data node process is stopped/started
using Ambari the path that was housed on that drive is re-created, but this time
on the / partition leading to out of disk space issues and data being created on the wrong
> In this version, Ambari will have a check to detect when the HDFS data directories are
either under the root mount, or more than one directory is under the same mount.
> For example,
> * if no external drives are mounted, then /hadoop/hdfs/data will be under the root.
> * if the paths are /hadoop/hdfs/data1 and /hadoop/hdfs/data2, but /hadoop/hdfs is the
mount point, then the directories are under the same mount, which is a conflict.
> For now, add a "Check Mount" button to the "Service Actions" dropdown for HDFS that will
run on all of the datanodes.

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