On Tue, Jul 17, 2012 at 10:14 AM, N Keywal <[email protected]> wrote: > To me we should fix this, and this includes HBASE-6401. The question > is mainly on which hdfs branch hbase would need it, as HDFS code > changed between the 1.0.3 release and the branch 2. HADOOP-8144 is > also important for people configuring the topology imho.
It's an interesting question if the HDFS 2 write/append pipeline is superior to the HDFS 1 one. I've seen a common opinion that it is indeed superior (as in, does not have known bugs) but have not had the bandwidth to validate this personally. For us, it's mostly a moot point, we are planning our next production generation to be on HDFS 2 so we can run a truly HA (hot failover) NN configuration, perferably with the Quorum Journal approach to edit log sharing (HDFS-3077). Best regards, - Andy Problems worthy of attack prove their worth by hitting back. - Piet Hein (via Tom White)
