Thank you for the replies. I meant porting HDFS to Zookeeper to make namenode fault-tolerant and highly available rather than the simple usage of Zookeeper. Basically by storing namespace metadata in Zookeeper, we may be able to get highly available replicated namenodes. So I meant using Zookeeper as frontend of HDFS. Anyway it seems to me that there has been no actual work going on regarding this, isn't it? :-)
-sangmin On Mon, Jun 30, 2008 at 6:38 PM, Sanjay Radia <[EMAIL PROTECTED]> wrote: > Sangmin Lee wrote: > >> >> Folks, >> >> I heard that there was a plans to porting HDFS to Zookeeper to get a high >> availability. >> Is this true? >> If so, could anyone let me know about the status of this effort? >> >> Cheers, >> >> -sangmin >> >> Do you literally mean port or simply use Zookeeper. > One could store the name space and data in Zookeeper - an interesting > exercise. > > Alternatively, one could use Zookeeper to elect a primary Namenode for HA; > this would be a good use of Zookeeper. > I can see this happening once we have replicated Namenodes. > > sanjay >
