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Posted to dev@accumulo.apache.org by David Medinets <da...@gmail.com> on 2012/10/02 03:42:41 UTC
Cassandra File System
http://www.datastax.com/dev/blog/cassandra-file-system-design - The
gist is that Datastax has replaced the Namenode, Secondary Namenode,
and (I forget the other) in order to eliminate the single point of
failure. This raises the strange notion of running Accumulo on top of
Cassandra.
Re: Cassandra File System
Posted by David Medinets <da...@gmail.com>.
I think the hope is that the Cassandra File System can be used to
replicate between data centers. For example, two replicas in center A
and two replicas in center B.
On Mon, Oct 1, 2012 at 10:34 PM, Todd Lipcon <to...@cloudera.com> wrote:
> If SPOF is your concern, why not just use Hadoop 2?
>
> -Todd
>
> On Mon, Oct 1, 2012 at 6:42 PM, David Medinets <da...@gmail.com> wrote:
>> http://www.datastax.com/dev/blog/cassandra-file-system-design - The
>> gist is that Datastax has replaced the Namenode, Secondary Namenode,
>> and (I forget the other) in order to eliminate the single point of
>> failure. This raises the strange notion of running Accumulo on top of
>> Cassandra.
>
>
>
> --
> Todd Lipcon
> Software Engineer, Cloudera
Re: Cassandra File System
Posted by Todd Lipcon <to...@cloudera.com>.
If SPOF is your concern, why not just use Hadoop 2?
-Todd
On Mon, Oct 1, 2012 at 6:42 PM, David Medinets <da...@gmail.com> wrote:
> http://www.datastax.com/dev/blog/cassandra-file-system-design - The
> gist is that Datastax has replaced the Namenode, Secondary Namenode,
> and (I forget the other) in order to eliminate the single point of
> failure. This raises the strange notion of running Accumulo on top of
> Cassandra.
--
Todd Lipcon
Software Engineer, Cloudera
Re: Cassandra File System
Posted by Josh Elser <jo...@gmail.com>.
I believe Eric has been working on something very similar using Accumulo
itself: https://issues.apache.org/jira/browse/ACCUMULO-722
On 10/1/2012 9:42 PM, David Medinets wrote:
> http://www.datastax.com/dev/blog/cassandra-file-system-design - The
> gist is that Datastax has replaced the Namenode, Secondary Namenode,
> and (I forget the other) in order to eliminate the single point of
> failure. This raises the strange notion of running Accumulo on top of
> Cassandra.
>