Hi Kun,
(1) ViewFileSystem is related.
https://hadoop.apache.org/docs/r2.7.2/hadoop-project-dist/hadoop-hdfs/ViewFs.html
(2) Yes, NameNode Federation is disabled by default.
I suppose it is possible to configure NameNode Federation in one node by
setting different HTTP/RPC port and fsimage/edits directory for each
NameNode. I haven't tried this, so perhaps it is not possible.
Regards,
Akira
On 4/28/16 09:30, Kun Ren wrote:
Hi Genius,
I have two questions about the HDFS Federation:
(1) Since there are multiple namenodes, there should be some code that
analysis the client request and transfer the request to the appropriate
namenode, could you please point to me where I can find the related code?
(2) .Also just confirm that the Hadoop 2.7.2 support HDFS Federation,
but in default there is only 1 namenode, is this correct? Meanwhile, do
you think it is possible to configure the HDFS Fderation in the pseudo
distributed mode in one node?
Thanks so much in advance.
Best,
Kun Ren
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