Revision f0879e4c396ab8ffd6246afea9f6400c5098bc12 authored by Daniel Black on 22 February 2017, 00:33:54 UTC, committed by Facebook Github Bot on 22 February 2017, 00:39:14 UTC
Summary:
Some places autodetected. These are the two places that didn't.

closes #1498

Still unsure if the following instances of 4 * 1024 need fixing in:
util/io_posix.h
include/rocksdb/table.h (appears to be blocksize and different)
utilities/persistent_cache/block_cache_tier.cc
utilities/persistent_cache/persistent_cache_test.h
include/rocksdb/env.h
util/env_posix.cc
db/column_family.cc
Closes https://github.com/facebook/rocksdb/pull/1499

Differential Revision: D4593640

Pulled By: yiwu-arbug

fbshipit-source-id: efc48de
1 parent 18eeb7b
Raw File
DUMP_FORMAT.md
## RocksDB dump format

The version 1 RocksDB dump format is fairly simple:

1) The dump starts with the magic 8 byte identifier "ROCKDUMP"

2) The magic is followed by an 8 byte big-endian version which is 0x00000001.

3) Next are arbitrarily sized chunks of bytes prepended by 4 byte little endian number indicating how large each chunk is.

4) 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.

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