FAQ
We are evaluating a plan to migrate NetApp NAS 400 TB storage system to
Hadoop file system.

One of crucial requirement for us is high availability and reliability of
storage system.

By reading Hadoop architecture and design doc, In case of Namenode failure,
it needs a manually recovery from Secondar NameNode. Is that still the case?


Any plan to develop full replication of Namenode to SecondayNameNode and
support real time fail over to SeondaryNameNode in case of Namenode failure
?

Thank for comments.

MIckey Hsieh

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postedMar 7, '08 at 7:21p
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