chenrongwei created HDFS-11283:
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Summary: why should we not introduce distributed database to
storage hdfs's metadata?
Key: HDFS-11283
URL: https://issues.apache.org/jira/browse/HDFS-11283
Project: Hadoop HDFS
Issue Type: Wish
Reporter: chenrongwei
why should we not introduce distributed database to storage hdfs's metadata?
In my opinion,it maybe loss some performance,but it has below improvements:
1、enhance NN's extend ability,such as NN can support much more files and
blocks. The problem of massive little files always make me headache.
2、In most MR cluster aren't care the performance loss,but more care the
cluster's scale.
3、NN's HA implements maybe more simply and reasonable.
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