You are viewing a plain text version of this content. The canonical link for it is here.

Posted to common-dev@hadoop.apache.org by Lance Boomerang <lr...@boomerang.com> on 2007/09/06 22:23:48 UTC

Re: Use HDFS as a long term storage solution?

Are there any recent updates on dealing with the single point of failure 
in the single namenode?

Has anyone considered using DRBD 
<http://www.linux-ha.org/DataRedundancyByDrbd#head-820e05581351be70bb34b9ff88b6fbce6a83fba9> 
to replicate the FsImage and EditLog(s) and then use Linux HA heartbeat 
to bring up the redundant node in the event of failure?
Also, has anyone experimented with putting the alternate copies of the 
FsImage and EditLog on a shared disk (NFS / NAS) ?

Another big question:  Has anybody tried using HADOOP / HDFS across 
multiple geographic sites?

Thanks in advance,

Lance


-- 
CSI Cardiff, I'd like to see that. They'd be measuring the velocity of a kebab!"