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

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Mayank Agarwal f1bf169484 Counter for merge failure ... Summary: With Merge returning bool, it can keep failing silently(eg. While faling to fetch timestamp in TTL). We need to detect this through a rocksdb counter which can get bumped whenever Merge returns false. This will also be super-useful for the mcrocksdb-counter service where Merge may fail. Added a counter NUMBER_MERGE_FAILURES and appropriately updated db/merge_helper.cc I felt that it would be better to directly add counter-bumping in Merge as a default function of MergeOperator class but user should not be aware of this, so this approach seems better to me. Test Plan: make all check Reviewers: dnicholas, haobo, dhruba, vamsi CC: leveldb Differential Revision: https://reviews.facebook.net/D12129		12 years ago
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arena.h	Make arena block size configurable	12 years ago
c.h	Fix poor error on num_levels mismatch and few other minor improvements	13 years ago
cache.h	Codemod NULL to nullptr	13 years ago
compaction_filter.h	Separate compaction filter for each compaction	12 years ago
comparator.h	A number of fixes:	14 years ago
db.h	Expand KeyMayExist to return the proper value if it can be found in memory and also check block_cache	12 years ago
env.h	[RocksDB] Option for incremental sync	13 years ago
filter_policy.h	Added bloom filter support.	14 years ago
iterator.h	A number of fixes:	14 years ago
ldb_tool.h	[RocksDB] Expose LDB functioanality as a library call - clients can build their own LDB binary with additional options	13 years ago
memtablerep.h	Make arena block size configurable	12 years ago
merge_operator.h	[RocksDB] [MergeOperator] The new Merge Interface! Uses merge sequences.	12 years ago
options.h	Prefix filters for scans (v4)	12 years ago
slice.h	manifest_dump: Add --hex=1 option	13 years ago
slice_transform.h	Prefix filters for scans (v4)	12 years ago
statistics.h	Counter for merge failure	12 years ago
status.h	[Rocksdb] Support Merge operation in rocksdb	13 years ago
table_builder.h	Fix all the lint errors.	13 years ago
transaction_log_iterator.h	Do not allow Transaction Log Iterator to fall ahead when writer is writing the same file	13 years ago
types.h	GetUpdatesSince API to enable replication.	13 years ago
universal_compaction.h	Renamed 'hybrid_compaction' tp be "Universal Compaction'.	12 years ago
write_batch.h	[RocksDB] Expose count for WriteBatch	13 years ago