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From Robert Molina <rmol...@hortonworks.com>
Subject Re: How to make the setting changes works
Date Wed, 24 Apr 2013 16:40:38 GMT
Hi Geelong,
What's the ownership and permissions on /usr/hadoop/tmp/dfs/data?  If I
recall correctly, I believe it should be hdfs:hadoop, where the owner has
full permissions and the group can read and execute.  Does /var/log for the
datanode show any errors?



Robert Molina

Hortonworks, Inc.

Support Engineer

Phone: 408.645.7062


On Tue, Apr 23, 2013 at 7:17 PM, Geelong Yao <geelongyao@gmail.com> wrote:

> Hi
> Sorry to interrupt you.But nobody answer my question in Hadoop maillist.
> I have met a issue after I change the content of hdfs-site.xml to add
> another dfs.data.dir in my cluster. /usr/hadoop/tmp/dfs/data is the default
> value, /sda is the new one
> <property>
>         <name>data.dfs.dir</name>
>         <value>/usr/hadoop/tmp/dfs/data,/sda</value>
>     </property>
> The permission of /sda has been changed.
> [image: 内嵌图片 1]
> First I stop the cluster with stop-all.sh and replace the old
> hdfs-site.xml with new ones,then I restart the cluster with
> start-all.sh,but I found that datanode did not start
> --
> From Good To Great

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