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HDFS, mail # dev - HDFS HA with HDFS Federation


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Re: HDFS HA with HDFS Federation
lohit 2012-10-31, 20:15
This is good. Thanks

2012/10/31 Todd Lipcon <[EMAIL PROTECTED]>

> Hi Lohit,
>
> The shared edits dir config is also optionally per-namenode -- i.e you can
> specify dfs.namenode.shared.edits.dir.namespace1 or
> even dfs.namenode.shared.edits.dir.namespace1.nn2. For reference in the
> code, check out NameNode.NAMENODE_SPECIFIC_KEYS.
>
> -Todd
>
> On Wed, Oct 31, 2012 at 1:08 PM, lohit <[EMAIL PROTECTED]> wrote:
>
> > Hi Devs,
> >
> > I am trying to test HDFS Federation and HDFS HA on same cluster.
> > My setup has 2 federated NameNodes out of which only one NameNode is in
> HA
> > mode.
> > It looks like all configs has good structure to distinguish between the
> > namenode.
> > For example dfs.namenode.rpc-address.cluster.namenode is kind of unique.
> > This enables me to have same hdfs-site.xml across all nodes on cluster.
> > But some configs like  dfs.namenode.shared.edits.dir does not have this
> > property.
> > This forces me to have different hdfs-site.xml on different nodes.
> > Has anyone run into this situation? Any suggestions to overcome this?
> >
> > --
> > Have a Nice Day!
> > Lohit
> >
>
>
>
> --
> Todd Lipcon
> Software Engineer, Cloudera
>

--
Have a Nice Day!
Lohit