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

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Haobo Xu 0f0076ed5a [RocksDB] Reduce memory footprint of the blockbased table hash index. ... Summary: Currently, the in-memory hash index of blockbased table uses a precise hash map to track the prefix to block range mapping. In some use cases, especially when prefix itself is big, the memory overhead becomes a problem. This diff introduces a fixed hash bucket array that does not store the prefix and allows prefix collision, which is similar to the plaintable hash index, in order to reduce the memory consumption. Just a quick draft, still testing and refining. Test Plan: unit test and shadow testing Reviewers: dhruba, kailiu, sdong Reviewed By: sdong Subscribers: leveldb Differential Revision: https://reviews.facebook.net/D19047		10 years ago
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rocksdb	[RocksDB] Reduce memory footprint of the blockbased table hash index.	10 years ago
utilities	Add share_files_with_cheksum option to BackupEngine	11 years ago