fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph

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Vijay Nadimpalli 979fbdc696 Persistent globally unique DB ID in manifest (#5725) ... Summary: Each DB has a globally unique ID. A DB can be physically copied around, or backed-up and restored, and the users should be identify the same DB. This unique ID right now is stored as plain text in file IDENTITY under the DB directory. This approach introduces at least two problems: (1) the file is not checksumed; (2) the source of truth of a DB is the manifest file, which can be copied separately from IDENTITY file, causing the DB ID to be wrong. The goal of this PR is solve this problem by moving the DB ID to manifest. To begin with we will write to both identity file and manifest. Write to Manifest is controlled via the flag write_dbid_to_manifest in Options and default is false. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5725 Test Plan: Added unit tests. Differential Revision: D16963840 Pulled By: vjnadimpalli fbshipit-source-id: 8a86a4c8c82c716003c40fd6b9d2d758030d92e9		5 years ago
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cf_options.cc	Refactor trimming logic for immutable memtables (#5022)	5 years ago
cf_options.h	Refactor trimming logic for immutable memtables (#5022)	5 years ago
db_options.cc	Persistent globally unique DB ID in manifest (#5725)	5 years ago
db_options.h	Persistent globally unique DB ID in manifest (#5725)	5 years ago
options.cc	Refactor trimming logic for immutable memtables (#5022)	5 years ago
options_helper.cc	Persistent globally unique DB ID in manifest (#5725)	5 years ago
options_helper.h	Option string/map/file can set env from object registry (#5237)	6 years ago
options_parser.cc	Move some memory related files from util/ to memory/ (#5382)	5 years ago
options_parser.h	Organizing rocksdb/table directory by format	5 years ago
options_sanity_check.cc	Change RocksDB License	7 years ago
options_sanity_check.h	Change RocksDB License	7 years ago
options_settable_test.cc	Persistent globally unique DB ID in manifest (#5725)	5 years ago
options_test.cc	Refactor trimming logic for immutable memtables (#5022)	5 years ago