Hi All,
HDFS Federation with PB+ rest data (Single Name Service is HA, Based on
QJM) , Apache 2.7.3 on Redhat 6.5 with JDK1.7.
1.Plan to deploy NN on server(32cores, 512G) , any precious advice about
JVM OPTS? If set heap size to about 400G with CMS GC collector, any obvious
problems?
2.If there are many groups of Name Services, is it more efficient that part
of Name Services share one group of JNs? Any advice to JN?
3.Welcome any words to Federation, thanks!
Thanks in advance,
Doris
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