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

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Zitan Chen 373d5ac485 BackupEngine verifies table file checksums on creating new backups (#7015) ... Summary: When table file checksums are enabled and stored in the DB manifest by using the RocksDB default crc32c checksum function, BackupEngine will calculate the crc32c checksum of the file to be copied and compare the calculated result with the one stored in the DB manifest before copying the file to the backup directory. After copying to the backup directory, BackupEngine will verify the checksum of the copied file with the one calculated before copying. This helps detect some rare corruption events such as bit-flips during the copying process. No verification with checksums in DB manifest will be performed if the table file checksum function is not the RocksDB default crc32c checksum function. In addition, If `share_table_files` and `share_files_with_checksum` are true, BackupEngine will compare the checksums computed before and after copying of the table files. Corresponding tests are added. Pull Request resolved: https://github.com/facebook/rocksdb/pull/7015 Test Plan: Passed make check Reviewed By: pdillinger Differential Revision: D22165732 Pulled By: gg814 fbshipit-source-id: ee0e8cc397c455eba64545c29380b9d9853588ec		4 years ago
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db_impl.cc	BackupEngine verifies table file checksums on creating new backups (#7015)	4 years ago
db_impl.h	BackupEngine verifies table file checksums on creating new backups (#7015)	4 years ago
db_impl_compaction_flush.cc	Fix data race to VersionSet::io_status_ (#7034)	4 years ago
db_impl_debug.cc	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
db_impl_experimental.cc	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
db_impl_files.cc	First step towards handling MANIFEST write error (#6949)	4 years ago
db_impl_open.cc	Store DB identity and DB session ID in SST files (#6983)	4 years ago
db_impl_readonly.cc	API change: DB::OpenForReadOnly will not write to the file system unless create_if_missing is true (#6900)	4 years ago
db_impl_readonly.h	API change: DB::OpenForReadOnly will not write to the file system unless create_if_missing is true (#6900)	4 years ago
db_impl_secondary.cc	Properly report IO errors when IndexType::kBinarySearchWithFirstKey is used (#6621)	5 years ago
db_impl_secondary.h	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
db_impl_write.cc	Add timestamp to delete (#6253)	5 years ago
db_secondary_test.cc	Revert "Whole DBTest to skip fsync (#7049)" (#7070)	4 years ago