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

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Naman Gupta fe25070242 In-place updates for equal keys and similar sized values ... Summary: Currently for each put, a fresh memory is allocated, and a new entry is added to the memtable with a new sequence number irrespective of whether the key already exists in the memtable. This diff is an attempt to update the value inplace for existing keys. It currently handles a very simple case: 1. Key already exists in the current memtable. Does not inplace update values in immutable memtable or snapshot 2. Latest value type is a 'put' ie kTypeValue 3. New value size is less than existing value, to avoid reallocating memory TODO: For a put of an existing key, deallocate memory take by values, for other value types till a kTypeValue is found, ie. remove kTypeMerge. TODO: Update the transaction log, to allow consistent reload of the memtable. Test Plan: Added a unit test verifying the inplace update. But some other unit tests broken due to invalid sequence number checks. WIll fix them next. Reviewers: xinyaohu, sumeet, haobo, dhruba CC: leveldb Differential Revision: https://reviews.facebook.net/D12423 Automatic commit by arc		11 years ago
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builder.cc	Universal Compaction to Have a Size Percentage Threshold To Decide Whether to Compress	11 years ago
builder.h	Universal Compaction to Have a Size Percentage Threshold To Decide Whether to Compress	11 years ago
c.cc	Add appropriate LICENSE and Copyright message.	11 years ago
c_test.c	Migrate names of properties from 'leveldb' prefix to 'rocksdb' prefix.	11 years ago
corruption_test.cc	If a Put fails, fail all other puts	11 years ago
db_bench.cc	Conversion of db_bench, db_stress and db_repl_stress to use gflags	11 years ago
db_filesnapshot.cc	Unify DeleteFile and DeleteWalFiles	11 years ago
db_impl.cc	Support user-defined table stats collector	11 years ago
db_impl.h	Unify DeleteFile and DeleteWalFiles	11 years ago
db_impl_readonly.cc	Add appropriate LICENSE and Copyright message.	11 years ago
db_impl_readonly.h	Add appropriate LICENSE and Copyright message.	11 years ago
db_iter.cc	Fix Bug: iterator.Prev() or iterator.SeekToLast() might return the first element instead of the correct one	11 years ago
db_iter.h	Add appropriate LICENSE and Copyright message.	11 years ago
db_statistics.h	Add appropriate LICENSE and Copyright message.	11 years ago
db_stats_logger.cc	Add appropriate LICENSE and Copyright message.	11 years ago
db_test.cc	In-place updates for equal keys and similar sized values	11 years ago
dbformat.cc	Add appropriate LICENSE and Copyright message.	11 years ago
dbformat.h	Add appropriate LICENSE and Copyright message.	11 years ago
dbformat_test.cc	Add appropriate LICENSE and Copyright message.	11 years ago
deletefile_test.cc	Fix a valgrind warning	11 years ago
filename.cc	Unify DeleteFile and DeleteWalFiles	11 years ago
filename.h	Unify DeleteFile and DeleteWalFiles	11 years ago
filename_test.cc	Add appropriate LICENSE and Copyright message.	11 years ago
log_format.h	Add appropriate LICENSE and Copyright message.	11 years ago
log_reader.cc	Add appropriate LICENSE and Copyright message.	11 years ago
log_reader.h	Add appropriate LICENSE and Copyright message.	11 years ago
log_test.cc	Add appropriate LICENSE and Copyright message.	11 years ago
log_writer.cc	Add appropriate LICENSE and Copyright message.	11 years ago
log_writer.h	Add appropriate LICENSE and Copyright message.	11 years ago
memtable.cc	In-place updates for equal keys and similar sized values	11 years ago
memtable.h	In-place updates for equal keys and similar sized values	11 years ago
memtablelist.cc	fix the error message in debug mode	11 years ago
memtablelist.h	Fix the log number bug when updating MANIFEST file	11 years ago
merge_helper.cc	Add appropriate LICENSE and Copyright message.	11 years ago
merge_helper.h	Add appropriate LICENSE and Copyright message.	11 years ago
merge_operator.cc	Add appropriate LICENSE and Copyright message.	11 years ago
merge_test.cc	Add appropriate LICENSE and Copyright message.	11 years ago
perf_context_test.cc	[RocksDB] Add perf_context.wal_write_time to track time spent on writing the recovery log.	11 years ago
prefix_filter_iterator.h	Add appropriate LICENSE and Copyright message.	11 years ago
repair.cc	In-place updates for equal keys and similar sized values	11 years ago
skiplist.h	Add appropriate LICENSE and Copyright message.	11 years ago
skiplist_test.cc	Add appropriate LICENSE and Copyright message.	11 years ago
snapshot.h	Add appropriate LICENSE and Copyright message.	11 years ago
table_cache.cc	Add appropriate LICENSE and Copyright message.	11 years ago
table_cache.h	Add appropriate LICENSE and Copyright message.	11 years ago
table_stats_collector.cc	Support user-defined table stats collector	11 years ago
table_stats_collector.h	Support user-defined table stats collector	11 years ago
table_stats_collector_test.cc	Support user-defined table stats collector	11 years ago
transaction_log_impl.cc	Disallow transaction log iterator to skip sequences	11 years ago
transaction_log_impl.h	Disallow transaction log iterator to skip sequences	11 years ago
version_edit.cc	Add appropriate LICENSE and Copyright message.	11 years ago
version_edit.h	Fix the log number bug when updating MANIFEST file	11 years ago
version_edit_test.cc	Add appropriate LICENSE and Copyright message.	11 years ago
version_set.cc	Universal Compaction to Have a Size Percentage Threshold To Decide Whether to Compress	11 years ago
version_set.h	Universal Compaction to Have a Size Percentage Threshold To Decide Whether to Compress	11 years ago
version_set_reduce_num_levels.cc	Add appropriate LICENSE and Copyright message.	11 years ago
version_set_test.cc	Add appropriate LICENSE and Copyright message.	11 years ago
write_batch.cc	In-place updates for equal keys and similar sized values	11 years ago
write_batch_internal.h	In-place updates for equal keys and similar sized values	11 years ago
write_batch_test.cc	In-place updates for equal keys and similar sized values	11 years ago