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fc0c399d2e
rocksdb/db
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Dhruba Borthakur fc0c399d2e Introduced a new flag non_blocking_io in ReadOptions. 
Summary:
If ReadOptions.non_blocking_io is set to true, then KeyMayExists
and Iterators will return data that is cached in RAM.
If the Iterator needs to do IO from storage to serve the data,
then the Iterator.status() will return Status::IsRetry().

Test Plan:
Enhanced unit test DBTest.KeyMayExist to detect if there were are IOs
issues from storage. Added DBTest.NonBlockingIteration to verify
nonblocking Iterations.

Reviewers: emayanke, haobo

Reviewed By: haobo

CC: leveldb

Maniphest Tasks: T63

Differential Revision: https://reviews.facebook.net/D12531
2013-08-28 10:49:14 -07:00
..
.nfs00000000066c9ebb00000002 Enhance db_bench 2013-03-14 16:00:23 -07:00
builder.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
builder.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
c_test.c Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
c.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
corruption_test.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
db_bench.cc Internal/user key bug fix. 2013-08-23 14:49:57 -07:00
db_filesnapshot.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
db_impl_readonly.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
db_impl_readonly.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
db_impl.cc Introduced a new flag non_blocking_io in ReadOptions. 2013-08-28 10:49:14 -07:00
db_impl.h Introduced a new flag non_blocking_io in ReadOptions. 2013-08-28 10:49:14 -07:00
db_iter.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
db_iter.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
db_statistics.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
db_stats_logger.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
db_test.cc Introduced a new flag non_blocking_io in ReadOptions. 2013-08-28 10:49:14 -07:00
dbformat_test.cc Fix all warnings generated by -Wall option to the compiler. 2012-11-06 14:07:31 -08:00
dbformat.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
dbformat.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
deletefile_test.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
filename_test.cc Added meta-database support. 2012-12-17 11:26:59 -08:00
filename.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
filename.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
log_format.h Fixed sign-comparison in rocksdb code-base and fixed Makefile 2013-03-19 14:35:23 -07:00
log_reader.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
log_reader.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
log_test.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
log_writer.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
log_writer.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
memtable.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
memtable.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
memtablelist.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
memtablelist.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
merge_helper.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
merge_helper.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
merge_operator.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
merge_test.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
perf_context_test.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
perf_context.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
prefix_filter_iterator.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
repair.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
skiplist_test.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
skiplist.h Make arena block size configurable 2013-07-31 12:42:23 -07:00
snapshot.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
table_cache.cc Introduced a new flag non_blocking_io in ReadOptions. 2013-08-28 10:49:14 -07:00
table_cache.h Introduced a new flag non_blocking_io in ReadOptions. 2013-08-28 10:49:14 -07:00
transaction_log_impl.cc API for getting archived log files 2013-08-19 13:37:04 -07:00
transaction_log_impl.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
version_edit_test.cc Reduce write amplification by merging files in L0 back into L0 2013-06-30 20:07:04 -07:00
version_edit.cc Merge remote-tracking branch 'origin' into performance 2013-08-12 09:58:50 -07:00
version_edit.h Merge remote-tracking branch 'origin' into performance 2013-08-12 09:58:50 -07:00
version_set_reduce_num_levels.cc Fix valgrind errors in rocksdb tests: auto_roll_logger_test, reduce_levels_test 2013-03-12 16:03:16 -07:00
version_set_test.cc Codemod NULL to nullptr 2013-02-28 18:04:58 -08:00
version_set.cc Introduced a new flag non_blocking_io in ReadOptions. 2013-08-28 10:49:14 -07:00
version_set.h Introduced a new flag non_blocking_io in ReadOptions. 2013-08-28 10:49:14 -07:00
write_batch_internal.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
write_batch_test.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
write_batch.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00