Curious to see if anyone has been considering using HDFS for a general storage platform.
I have been playing around with using HDFS to store video type assets.

wondering what type of mileage folks might be seeing?
Problems with too many small files?
Upgrading the system as new versions of HDFS/Hadoop come out.

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

Has anyone considered using DRBD 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

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