feat(meta): support rocksdb store mode

[NaturalSelect]

Main Issue: #3350

Motivation

Implement rocksdb store mode that describe in #3350.

Modifications

• Each disk own a rocksdb instance, so we can share block cahce and write buffer. Using prefix key to isolate different meta partitions.
• Support migrate a memory meta partition(replica) to rocksdb meta partition.
• Refactor behavior of extent deletion, use a new kind of tree to store deleted extent data.
• Monitor available space of each disk and report it to master, adjust our node and nodeset selector to support disk space based meta partition placement.
• Support configurate default meta partition store mode of volume.

Types of changes

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• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Bugfix (non-breaking change which fixes an issue)
• Documentation Update (if none of the other choices apply)
• So on...

Verifying this change

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• Make sure that the change passes the testing checks.

This change added tests and can be verified as follows:

• Add rocksdb version of existing unit tests, execute docker/run_docker.sh --test to verify.
• S3 test now using a rocksdb volume, execute docker/run_docker.sh --s3test to verify.

Does this pull request potentially affect one of the following parts:

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• Master
• MetaNode
• DataNode
• ObjectNode
• AuthNode
• LcNode
• Blobstore
• Client
• Cli
• SDK
• Other Tools
• Common Packages
• Dependencies
• Anything that affects deployment

Documentation

• doc
• doc-required
• doc-not-needed
• doc-complete

Review Expection

• in-two-days
• weeks
• free-time
• whenever

Matching PR in forked repository

PR in forked repository:

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