[jira] [Resolved] (HDFS-11283) why should we not introduce distributed database to storage hdfs's metadata?

["Arpit Agarwal (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-11283?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Arpit Agarwal resolved HDFS-11283.
----------------------------------
    Resolution: Fixed

Hi [~chenrongwei], the hdfs-dev mailing list is the right place for these questions. Resolving this.

> 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 simpler and reasonable.
> so I think maybe we should add a new work mode building on distributed database for NN.



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)

---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-dev-unsubscribe@hadoop.apache.org
For additional commands, e-mail: hdfs-dev-help@hadoop.apache.org