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

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Abhishek Kona 391885c4e4 stat's collection in leveldb ... Summary: Prototype stat's collection. Diff is a good estimate of what the final code will look like. A few assumptions : * Used a global static instance of the statistics object. Plan to pass it to each internal function. Static allows metrics only at app level. * In the Ticker's do not do any locking. Depend on the mutex at each function of LevelDB. If we ever remove the mutex, we should change here too. The other option is use atomic objects anyways as there won't be any contention as they will be always acquired only by one thread. * The counters are dumb, increment through lifecycle. Plan to use ods etc to get last5min stat etc. Test Plan: made changes in db_bench Ran ./db_bench --statistics=1 --num=10000 --cache_size=5000 This will print the cache hit/miss stats. Reviewers: dhruba, heyongqiang Differential Revision: https://reviews.facebook.net/D6441		12 years ago
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c.h	Added bloom filter support.	13 years ago
cache.h	Print the block cache size in the LOG.	12 years ago
comparator.h	A number of fixes:	13 years ago
db.h	Add a readonly db	12 years ago
env.h	Enable LevelDb to create a new log file if current log file is too large.	12 years ago
filter_policy.h	Added bloom filter support.	13 years ago
iterator.h	A number of fixes:	13 years ago
options.h	Ability to invoke application hook for every key during compaction.	12 years ago
slice.h	Support for java access to leveldb via leveldbjni.	13 years ago
statistics.h	stat's collection in leveldb	12 years ago
status.h	build shared libraries; updated version to 1.3; add Status accessors	13 years ago
table.h	Trigger read compaction only if seeks to storage are incurred.	12 years ago
table_builder.h	Allow having different compression algorithms on different levels.	12 years ago
write_batch.h	A number of fixes:	13 years ago