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https://issues.apache.org/jira/browse/HDFS-15133?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17032130#comment-17032130
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maobaolong commented on HDFS-15133:
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There are some work todo.
- how to measure the size of the inodeTable? for the heapStore, the size is
easy to get, but how to get the size of the rocksdb table?
- I want to use protobuf to serialisation and deserialisation, so there are a
big work to write serval message of proto, and a PBHelper is needed, serval
Codec of the sub class of INode should be implemented.
If everything goes well, we will see the result soon.
> Use rocksdb to store NameNode inode and blockInfo
> -------------------------------------------------
>
> Key: HDFS-15133
> URL: https://issues.apache.org/jira/browse/HDFS-15133
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namenode
> Affects Versions: 3.3.0
> Reporter: maobaolong
> Priority: Major
> Attachments: image-2020-01-28-12-30-33-015.png
>
>
> Maybe we don't need checkpoint to a fsimage file, the rocksdb checkpoint can
> achieve the same request.
> This is ozone and alluxio way to manage meta data of master node.
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