Dr. Hadoop: an infinite scalable metadata management for Hadoop—How the baby elephant becomes immortal
Dipayan DEV,Ripon PATGIRI
Table 1
Analytical comparison of traditional Hadoop and Dr. Hadoop
Parameter
Traditional Hadoop
Dr. Hadoop
Maximum number of NameNode crushes that can survive
0
r
— 1
Number of RPCs needed for read operation
1
1
Number of RPCs needed for write operation
1
r
Metadata storage per NameNode
X
(
X
/
r
)
m
Throughput of metadata read
X
Xm
Throughput of metadata write
X
X
(
m
/
r
)