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提交于 2015-06-19 16:24 . First version of rocksdb_dump and rocksdb_undump.

RocksDB dump format

The version 1 RocksDB dump format is fairly simple:

The dump starts with the magic 8 byte identifier "ROCKDUMP"
The magic is followed by an 8 byte big-endian version which is 0x00000001.
Next are arbitrarily sized chunks of bytes prepended by 4 byte little endian number indicating how large each chunk is.
The first chunk is special and is a json string indicating some things about the creation of this dump. It contains the following keys:

database-path: The path of the database this dump was created from.
hostname: The hostname of the machine where the dump was created.
creation-time: Unix seconds since epoc when this dump was created.

Following the info dump the slices paired into are key/value pairs.

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