Hello Everyone,

I have specified the secondary namenode is masters file.
Which property is to be used to show a path used to store HDFS data by
secondary node?
What happened if I don't specify that property (or What is the default
location secondary namenode uses)?

Regards,
Abhay

https://ccp.cloudera.com/display/CDHDOC/CDH3+Deployment+on+a+Cluster#CDH3DeploymentonaCluster-ConfiguringtheSecondaryNameNode

fs.checkpoint.dir /cache/hadoop/dfs

fs.checkpoint.edits.dir /cache/hadoop/dfs
-Håvard

On Fri, Aug 24, 2012 at 4:20 PM, Abhay Ratnaparkhi
<[EMAIL PROTECTED]> wrote:
>  Hello Everyone,
>
> I have specified the secondary namenode is masters file.
> Which property is to be used to show a path used to store HDFS data by
> secondary node?
> What happened if I don't specify that property (or What is the default
> location secondary namenode uses)?
>
> Regards,
> Abhay
>
>

--
Håvard Wahl Kongsgård
Faculty of Medicine &
Department of Mathematical Sciences
NTNU

http://havard.security-review.net/

Hi,

(In addition to what Håvard has posted)

On Fri, Aug 24, 2012 at 7:50 PM, Abhay Ratnaparkhi
<[EMAIL PROTECTED]> wrote:
> What happened if I don't specify that property (or What is the default
> location secondary namenode uses)?

If you do not specify an explicit local path, a /tmp-based path is
used (inherited from hadoop.tmp.dir), which is cleared out at reboots
or by tmpwatch (if on a noatime FS), and that can prove dangerous (you
lose backup fsimage copies).

--
Harsh J