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

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Siying Dong 18df47b79a Avoid malloc in NotFound key status if no message is given. ... Summary: In some places we have NotFound status created with empty message, but it doesn't avoid a malloc. With this patch, the malloc is avoided for that case. The motivation of it is that I found in db_bench readrandom test when all keys are not existing, about 4% of the total running time is spent on malloc of Status, plus a similar amount of CPU spent on free of them, which is not necessary. Test Plan: make all check Reviewers: dhruba, haobo, igor Reviewed By: haobo CC: leveldb Differential Revision: https://reviews.facebook.net/D14691		11 years ago
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rocksdb	Avoid malloc in NotFound key status if no message is given.	11 years ago
utilities	BackupableDB delete backups with newer seq number	11 years ago