Commit Graph

514 Commits

Author SHA1 Message Date
hyunwoo
c7662a44a4 fixed typo
Summary:
fixed typo
Closes https://github.com/facebook/rocksdb/pull/2376

Differential Revision: D5183630

Pulled By: ajkr

fbshipit-source-id: 133cfd0445959e70aa2cd1a12151bf3c0c5c3ac5
2017-06-05 11:27:34 -07:00
Aaron Gao
7e5fac2c34 remove test dir before exit when current regression is running
Summary:
clean up the current test dir if the last regression test is still running.
Closes https://github.com/facebook/rocksdb/pull/2401

Differential Revision: D5177882

Pulled By: lightmark

fbshipit-source-id: 91d899fcc2bde841948eae71af8584d4bdb35468
2017-06-02 17:26:19 -07:00
Aaron Gao
7f6c02dda1 using ThreadLocalPtr to hide ROCKSDB_SUPPORT_THREAD_LOCAL from public…
Summary:
… headers

https://github.com/facebook/rocksdb/pull/2199 should not reference RocksDB-specific macros (like ROCKSDB_SUPPORT_THREAD_LOCAL in this case) to public headers, `iostats_context.h` and `perf_context.h`. We shouldn't do that because users have to provide these compiler flags when building their binary with RocksDB.

We should hide the thread local global variable inside our implementation and just expose a function api to retrieve these variables. It may break some users for now but good for long term.

make check -j64
Closes https://github.com/facebook/rocksdb/pull/2380

Differential Revision: D5177896

Pulled By: lightmark

fbshipit-source-id: 6fcdfac57f2e2dcfe60992b7385c5403f6dcb390
2017-06-02 17:26:19 -07:00
Siying Dong
95b0e89b5d Improve write buffer manager (and allow the size to be tracked in block cache)
Summary:
Improve write buffer manager in several ways:
1. Size is tracked when arena block is allocated, rather than every allocation, so that it can better track actual memory usage and the tracking overhead is slightly lower.
2. We start to trigger memtable flush when 7/8 of the memory cap hits, instead of 100%, and make 100% much harder to hit.
3. Allow a cache object to be passed into buffer manager and the size allocated by memtable can be costed there. This can help users have one single memory cap across block cache and memtable.
Closes https://github.com/facebook/rocksdb/pull/2350

Differential Revision: D5110648

Pulled By: siying

fbshipit-source-id: b4238113094bf22574001e446b5d88523ba00017
2017-06-02 14:26:56 -07:00
Aaron Gao
8721996065 add checkpoint support for single db in regression test
Summary:
For level_compaction_style regression test.
Closes https://github.com/facebook/rocksdb/pull/2397

Differential Revision: D5168545

Pulled By: lightmark

fbshipit-source-id: 195e4d84917e7c261d9f4fbe9aee5d104c9cb9a2
2017-06-01 15:56:59 -07:00
Aaron Gao
9b3ed83506 fix regression test
Summary:
fix regression test by not reporting stats when building db
Closes https://github.com/facebook/rocksdb/pull/2390

Differential Revision: D5159909

Pulled By: lightmark

fbshipit-source-id: c3f4b9deb9c6799ff84207fd341c529144f8158d
2017-05-31 15:41:45 -07:00
Aaron Gao
cbc821c25b change regression rebuild to one level
Summary:
abandon fillseqdeterministic
test locally
Closes https://github.com/facebook/rocksdb/pull/2290

Differential Revision: D5151867

Pulled By: lightmark

fbshipit-source-id: 4c8a24cc937212ffb5ceb9bfaf7288eb8726d0c1
2017-05-30 16:41:21 -07:00
Yi Wu
0be636bf70 Fix db_bench build break with blob db
Summary:
Lite build does not recognize FLAGS_use_blob_db. Fixing it.
Closes https://github.com/facebook/rocksdb/pull/2372

Reviewed By: anirbanr-fb

Differential Revision: D5130773

Pulled By: yiwu-arbug

fbshipit-source-id: 43131d9d0be5811f2129af562be72cca26369cb3
2017-05-25 14:11:22 -07:00
Aaron Gao
135ee6a3fc fix tsan crash data race
Summary:
rand_ has data race risk
TEST_TMPDIR=\/dev\/shm\/rocksdb OPT=-g COMPILE_WITH_TSAN=1 CRASH_TEST_KILL_ODD=1887 make J=1 crash_test
Closes https://github.com/facebook/rocksdb/pull/2368

Differential Revision: D5127424

Pulled By: lightmark

fbshipit-source-id: b7f4d1430a5769b57da9f99037106749264b2ced
2017-05-25 10:44:07 -07:00
Andrew Kryczka
bb01c1880c Introduce max_background_jobs mutable option
Summary:
- `max_background_flushes` and `max_background_compactions` are still supported for backwards compatibility
- `base_background_compactions` is completely deprecated. Now we just throttle to one background compaction when there's no pressure.
- `max_background_jobs` is added to automatically partition the concurrent background jobs into flushes vs compactions. Currently it's very simple as we just allocate one-fourth of the jobs to flushes, and the remaining can be used for compactions.
- The test cases that set `base_background_compactions > 1` needed to be updated. I just grab the pressure token such that the desired number of compactions can be scheduled.
Closes https://github.com/facebook/rocksdb/pull/2205

Differential Revision: D4937461

Pulled By: ajkr

fbshipit-source-id: df52cbbd497e13bbc9a60560a5ac2a2526b3f1f9
2017-05-24 11:29:08 -07:00
Sagar Vemuri
85b8569ae8 Fix release build on Linux
Summary:
Release builds are failing on Linux with the error:
```
tools/db_stress.cc: In function ‘int main(int, char**)’:
tools/db_stress.cc:2365:12: error: ‘rocksdb::SyncPoint’ has not been declared
   rocksdb::SyncPoint::GetInstance()->SetCallBack(
            ^
tools/db_stress.cc:2370:12: error: ‘rocksdb::SyncPoint’ has not been declared
   rocksdb::SyncPoint::GetInstance()->SetCallBack(
            ^
tools/db_stress.cc:2375:12: error: ‘rocksdb::SyncPoint’ has not been declared
   rocksdb::SyncPoint::GetInstance()->EnableProcessing();
            ^
make[1]: *** [tools/db_stress.o] Error 1
make[1]: Leaving directory `/data/sandcastle/boxes/trunk-git-rocksdb-public'
make: *** [release] Error 2
```
Closes https://github.com/facebook/rocksdb/pull/2355

Differential Revision: D5113552

Pulled By: sagar0

fbshipit-source-id: 351df707277787da5633ba4a40e52edc7c895dc4
2017-05-23 14:57:05 -07:00
Yi Wu
578fb0b1dc Simple blob file dumper
Summary:
A simple blob file dumper.
Closes https://github.com/facebook/rocksdb/pull/2242

Differential Revision: D5097553

Pulled By: yiwu-arbug

fbshipit-source-id: c6e00d949fcd3658f9f68da9352f06339fac418d
2017-05-23 10:42:59 -07:00
Aaron Gao
3e86c0f07c disable direct reads for log and manifest and add direct io to tests
Summary:
Disable direct reads for log and manifest. Direct reads should not affect sequential_file
Also add kDirectIO for option_config_ in db_test_util
Closes https://github.com/facebook/rocksdb/pull/2337

Differential Revision: D5100261

Pulled By: lightmark

fbshipit-source-id: 0ebfd13b93fa1b8f9acae514ac44f8125a05868b
2017-05-22 18:41:28 -07:00
hyunwoo
f720796e24 fixed typo
Summary:
fixed exisitng -> existing
Closes https://github.com/facebook/rocksdb/pull/2305

Differential Revision: D5070169

Pulled By: yiwu-arbug

fbshipit-source-id: 8c8450acf50757b767cf78b78314018395738d96
2017-05-16 11:07:58 -07:00
Andrew Kryczka
3fa9a39c68 Add GetAllKeyVersions API
Summary:
- Introduced an include/ file dedicated to db-related debug functions to avoid making db.h more complex
- Added debugging function, `GetAllKeyVersions()`, to return a listing of internal data for a range of user keys. The new `struct KeyVersion` exposes data similar to internal key without exposing any internal type.
- Migrated the "ldb idump" subcommand to use this function
- The API takes an inclusive-exclusive range to match behavior of "ldb idump". This will be quite annoying for users who want to query a single user key's versions :(.
Closes https://github.com/facebook/rocksdb/pull/2232

Differential Revision: D4976007

Pulled By: ajkr

fbshipit-source-id: cab375da53a7595d6575af2b7e3b776aa3ad793e
2017-05-12 15:54:06 -07:00
Anirban Rahut
d85ff4953c Blob storage pr
Summary:
The final pull request for Blob Storage.
Closes https://github.com/facebook/rocksdb/pull/2269

Differential Revision: D5033189

Pulled By: yiwu-arbug

fbshipit-source-id: 6356b683ccd58cbf38a1dc55e2ea400feecd5d06
2017-05-10 15:14:44 -07:00
Siying Dong
264d3f540c Allow IntraL0 compaction in FIFO Compaction
Summary:
Allow an option for users to do some compaction in FIFO compaction, to pay some write amplification for fewer number of files.
Closes https://github.com/facebook/rocksdb/pull/2163

Differential Revision: D4895953

Pulled By: siying

fbshipit-source-id: a1ab608dd0627211f3e1f588a2e97159646e1231
2017-05-04 18:16:13 -07:00
Siying Dong
d616ebea23 Add GPLv2 as an alternative license.
Summary: Closes https://github.com/facebook/rocksdb/pull/2226

Differential Revision: D4967547

Pulled By: siying

fbshipit-source-id: dd3b58ae1e7a106ab6bb6f37ab5c88575b125ab4
2017-04-27 18:06:12 -07:00
Tomas Kolda
04d58970cb AIX and Solaris Sparc Support
Summary:
Replacement of #2147

The change was squashed due to a lot of conflicts.
Closes https://github.com/facebook/rocksdb/pull/2194

Differential Revision: D4929799

Pulled By: siying

fbshipit-source-id: 5cd49c254737a1d5ac13f3c035f128e86524c581
2017-04-21 20:48:04 -07:00
Siying Dong
963eeba488 Revert how check_format_compatible.sh checkout release branches.
Summary:
In a previous commit, I changed the way to checkout release branches from "git checkout <branch_name>" to "git checkout origin/<branch_name>". However, this doesn't seem to work in our CI environment. Revert it.
Closes https://github.com/facebook/rocksdb/pull/2189

Differential Revision: D4922294

Pulled By: siying

fbshipit-source-id: 482c17f9b05e6ccb190876b050682fe5a458103d
2017-04-20 11:06:09 -07:00
Siying Dong
97005dbd5d tools/check_format_compatible.sh to cover option file loading too
Summary:
tools/check_format_compatible.sh will check a newer version of RocksDB can open option files generated by older version releases. In order to achieve that, a new parameter "--try_load_options" is added to ldb. With this parameter set, if option file exists, we load the option file and use it to open the DB. With this opiton set, we can validate option loading logic.
Closes https://github.com/facebook/rocksdb/pull/2178

Differential Revision: D4914989

Pulled By: siying

fbshipit-source-id: db114f7724fcb41e5e9483116d84d7c4b8389ca4
2017-04-20 10:26:37 -07:00
Maysam Yabandeh
8f61967881 Add cpu usage to regression benchmarks (4th attempt)
Summary:
Tested by running it on a remote machine.

I could not run it on the particular remote machine which has a different location for time command since it is busy and the script does not allow concurrent runs. So I tested it by hacking the script and replacing the command with "\$(hostname)" and confirmed that the scripts prints out the host name of the remote machine.
Closes https://github.com/facebook/rocksdb/pull/2181

Differential Revision: D4921654

Pulled By: maysamyabandeh

fbshipit-source-id: 8abb5ea9f7234f3c50a749576ccbb47ff605beb9
2017-04-20 09:31:09 -07:00
Maysam Yabandeh
927bbab25c Revert "Add cpu usage to regression benchmarks (3rd attempt)"
Summary:
This reverts commit 476e80be80.
Closes https://github.com/facebook/rocksdb/pull/2177

Differential Revision: D4914830

Pulled By: maysamyabandeh

fbshipit-source-id: 039299348ceb325aa721eb35e3a26e890f84ee74
2017-04-19 11:11:12 -07:00
Siying Dong
1553659d6a Add more recent versions to tools/check_format_compatible.sh
Summary:
Need to add more recent versions to tools/check_format_compatible.sh to meka sure backward and forward compatibility.
Closes https://github.com/facebook/rocksdb/pull/2175

Differential Revision: D4911585

Pulled By: siying

fbshipit-source-id: 943e6488757efb11bb6720d811c7ba949915c9de
2017-04-18 18:57:11 -07:00
Maysam Yabandeh
476e80be80 Add cpu usage to regression benchmarks (3rd attempt)
Summary:
Tested by running rocks/tools/debug_regression_test.sh and verifying the local output:
```
 cat local/rocks_regression_tests/OPTIONS-viewstate-66-1262-5000/2017-04-13-11-34-51/SUMMARY.csv
                               commit id,                benchmark,                     user@host,num-dbs,key-range,key-size,value-size,compress-rate,ops-per-thread,num-threads,  cache-size,flushes,compactions,ops-per-s,       p50,       p75,       p99,     p99.9,    p99.99,debug,real-sec,user-sec,sys-sec
d2dce5611a,               readrandom,                root@localhost,     12,     5000,      66,      1262,           50,           312,         16,  1073741824,      4,         16,   138458,      9380,     11530,     55200,  16803200,  32504000,    1,    0,    0,    0
d2dce5611a,         readwhilewriting,                root@localhost,     12,     5000,      66,      1262,           50,           312,         16,  1073741824,      4,         16,   104511,
Closes https://github.com/facebook/rocksdb/pull/2157

Differential Revision: D4909238

Pulled By: maysamyabandeh

fbshipit-source-id: dc7bb8569c3c33b9f7c4ba47a757b24d27bb3b31
2017-04-18 17:11:25 -07:00
Siying Dong
c49d704656 Add DB:ResetStats()
Summary:
Add a function to allow users to reset internal stats without restarting the DB.
Closes https://github.com/facebook/rocksdb/pull/2167

Differential Revision: D4907939

Pulled By: siying

fbshipit-source-id: ab2dd85b88aabe9380da7485320a1d460d3e1f68
2017-04-18 16:56:48 -07:00
Aaron Gao
44fa8ece9b change use_direct_writes to use_direct_io_for_flush_and_compaction
Summary:
Replace Options::use_direct_writes with Options::use_direct_io_for_flush_and_compaction
Now if Options::use_direct_io_for_flush_and_compaction = true, we will enable direct io for both reads and writes for flush and compaction job. Whereas Options::use_direct_reads controls user reads like iterator and Get().
Closes https://github.com/facebook/rocksdb/pull/2117

Differential Revision: D4860912

Pulled By: lightmark

fbshipit-source-id: d93575a8a5e780cf7e40797287edc425ee648c19
2017-04-13 16:12:04 -07:00
Aaron Gao
ba7da434ae fix db_stress crash caused by buggy kernel warning
Summary:
filter the warning out and only print it once.
Closes https://github.com/facebook/rocksdb/pull/2137

Differential Revision: D4870925

Pulled By: lightmark

fbshipit-source-id: 91b363ce7f70bce88b0780337f408fc4649139b8
2017-04-11 16:56:59 -07:00
Maysam Yabandeh
6a8d5c015b Revert "Report cpu usage using time command"
Summary:
This reverts commit 97ec8a1349.
Closes https://github.com/facebook/rocksdb/pull/2136

Differential Revision: D4870610

Pulled By: maysamyabandeh

fbshipit-source-id: cdbfba135b065562f38f704f350a9a4e63a9a122
2017-04-11 13:57:58 -07:00
Maysam Yabandeh
97ec8a1349 Report cpu usage using time command
Summary:
Run the time command before regression tests, parse the output, and add the numbers to the report.
Closes https://github.com/facebook/rocksdb/pull/2101

Differential Revision: D4862781

Pulled By: maysamyabandeh

fbshipit-source-id: 4a81caa5d14187d67093aad154c8f0ad56aba901
2017-04-10 14:59:31 -07:00
Maysam Yabandeh
9690653db5 Add a verify phase to benchmarks
Summary:
Check the result of the benchmark againt a specified truth_db, which is
expected to be produced using the same benchmark but perhaps on a
different commit or with different configs.

The verification is simple and assumes that key/values are generated
deterministically. This assumption would break if db_bench using rand
variable differently from the benchmark that produced truth_db.
Currently it is checked to work on fillrandom and readwhilewriting.

A param finish_after_writes is added to ensure that the background
writing thread will write the same number of entries between two
benchmarks.

Example:
$ TEST_TMPDIR=/dev/shm/truth_db ./db_bench
--benchmarks="fillrandom,readwhilewriting" --num=200000
--finish_after_writes=true
$ TEST_TMPDIR=/dev/shm/tmpdb ./db_bench
--benchmarks="fillrandom,readwhilewriting,verify" --truth_db
/dev/shm/truth_db/dbbench --num=200000 --finish_after_writes=true
Verifying db <= truth_db...
Verifying db >= truth_db...
...Verified
Closes https://github.com/facebook/rocksdb/pull/2098

Differential Revision: D4839233

Pulled By: maysamyabandeh

fbshipit-source-id: 2f4ed31
2017-04-07 11:39:12 -07:00
Sagar Vemuri
343b59d6ee Move various string utility functions into string_util
Summary:
This is an effort to club all string related utility functions into one common place, in string_util, so that it is easier for everyone to know what string processing functions are available. Right now they seem to be spread out across multiple modules, like logging and options_helper.

Check the sub-commits for easier reviewing.
Closes https://github.com/facebook/rocksdb/pull/2094

Differential Revision: D4837730

Pulled By: sagar0

fbshipit-source-id: 344278a
2017-04-06 14:54:12 -07:00
Siying Dong
d2dce5611a Move some files under util/ to separate dirs
Summary:
Move some files under util/ to new directories env/, monitoring/ options/ and cache/
Closes https://github.com/facebook/rocksdb/pull/2090

Differential Revision: D4833681

Pulled By: siying

fbshipit-source-id: 2fd8bef
2017-04-05 19:09:16 -07:00
Aaron Gao
af256eb2b7 build db every monday
Summary:
Rebuilding regression db at the first run every monday.
Closes https://github.com/facebook/rocksdb/pull/2093

Differential Revision: D4836961

Pulled By: lightmark

fbshipit-source-id: 22d6c25
2017-04-05 12:24:21 -07:00
Siying Dong
6ef8c620d3 Move auto_roll_logger and filename out of db/
Summary:
It is confusing to have auto_roll_logger to stay under db/, which has nothing to do with database. Move filename together as it is a dependency.
Closes https://github.com/facebook/rocksdb/pull/2080

Differential Revision: D4821141

Pulled By: siying

fbshipit-source-id: ca7d768
2017-04-03 18:39:14 -07:00
Aaron Gao
0537f515c2 fix run_remote with strong quoting
Summary:
add \' pair to avoid bash expanding before run remotely
Closes https://github.com/facebook/rocksdb/pull/2079

Differential Revision: D4821342

Pulled By: lightmark

fbshipit-source-id: 418ba41
2017-04-03 13:09:12 -07:00
Aaron Gao
bd7d13835e test remote instead run remote in regression test
Summary:
avoid exit when $? != 0
Closes https://github.com/facebook/rocksdb/pull/2076

Differential Revision: D4815655

Pulled By: lightmark

fbshipit-source-id: 829299e
2017-03-31 18:54:11 -07:00
Aaron Gao
c81a805fe6 test db existence on the remote host
Summary:
Fix the bug that previous test existence locally
Closes https://github.com/facebook/rocksdb/pull/2074

Differential Revision: D4813631

Pulled By: lightmark

fbshipit-source-id: eceb0d9
2017-03-31 14:54:17 -07:00
Aaron Gao
5fc1e6765a add -rf when remove db in regression test
Summary:
force remove db dir when rebuilding
Closes https://github.com/facebook/rocksdb/pull/2067

Differential Revision: D4811926

Pulled By: lightmark

fbshipit-source-id: ab068a2
2017-03-31 12:10:23 -07:00
Aaron Gao
da175f7ecc exit with code 2 when there is already a db_bench running in regression test
Summary: Closes https://github.com/facebook/rocksdb/pull/2063

Differential Revision: D4805507

Pulled By: lightmark

fbshipit-source-id: 59ccb18
2017-03-30 14:09:11 -07:00
Aaron Gao
f3607640a6 add ldb build to regression test
Summary:
add ldb to regression test in order to enable reuse db by creating checkpoint
Closes https://github.com/facebook/rocksdb/pull/2030

Differential Revision: D4800549

Pulled By: lightmark

fbshipit-source-id: d3a7325
2017-03-29 18:24:11 -07:00
Yi Wu
41fe9ad75b Hide usage of compaction_options_fifo from lite build
Summary:
...to fix lite build error.
Closes https://github.com/facebook/rocksdb/pull/2046

Differential Revision: D4785910

Pulled By: yiwu-arbug

fbshipit-source-id: b591f27
2017-03-28 13:39:13 -07:00
Shu Zhang
8dee8cad9e Enable fifo compaction benchmark to db_bench
Summary:
Added fifo benchmark to db_bench.
One thing i am not sure is that i am using CompactRange() instead of CompactFiles(). (may cause performance skew because CompactionRange() is not happening in current thread?)  For CompactFiles(), for some reason FIFO compaction doesn't work as expected. More insight is welcomed. I guess FIFO compaction doesn't work with file names? igorcanadi

test cmd:
./db_bench --compaction_style=2 --benchmarks=fillseqdeterministic --disable_auto_compactions --num_levels=1 --fifo_compaction_max_table_files_size_mb=10

---------------------- DB 0 LSM ---------------------
Level[0]: /000014.sst(size: 4211014 bytes)
fillseqdeterministic :       4.731 micros/op 211381 ops/sec;   23.4 MB/s
Closes https://github.com/facebook/rocksdb/pull/1734

Differential Revision: D4774964

Pulled By: siying

fbshipit-source-id: 9d08df6
2017-03-24 17:09:15 -07:00
Siying Dong
e474df9470 db_bench: not need to check mmap for PlainTable
Summary:
PlainTable now supports non-mmap mode. We don't need to check it anymore.
Closes https://github.com/facebook/rocksdb/pull/1882

Differential Revision: D4751643

Pulled By: siying

fbshipit-source-id: ab14540
2017-03-22 11:09:13 -07:00
Siying Dong
17866ecc3a Allow Users to change customized ldb tools' header in help printing
Summary: Closes https://github.com/facebook/rocksdb/pull/2018

Differential Revision: D4748448

Pulled By: siying

fbshipit-source-id: a54c2f9
2017-03-21 17:39:12 -07:00
Leonidas Galanis
a2a883318b remove deleted option from benchmark.sh
Summary:
Removed max_grandparent_overlap_factor from benchmark.sh since it is not a valid option anymore.
Closes https://github.com/facebook/rocksdb/pull/2015

Differential Revision: D4748229

Pulled By: lgalanis

fbshipit-source-id: c3869ea
2017-03-21 12:54:13 -07:00
Aaron Gao
78cb195595 add checkpoint to ldb
Summary: Closes https://github.com/facebook/rocksdb/pull/2017

Differential Revision: D4747656

Pulled By: lightmark

fbshipit-source-id: c52f160
2017-03-21 11:54:11 -07:00
Aaron Gao
93c68b642e change regression bash file with debug mode
Summary:
add debug mode for better debugging
refactor some regex
change micros/op to ops/sec
Closes https://github.com/facebook/rocksdb/pull/1999

Differential Revision: D4742806

Pulled By: lightmark

fbshipit-source-id: 0fe3ae6
2017-03-20 17:39:17 -07:00
Andrew Kryczka
e66221add4 fix db_bench rate limiter callsites
Summary:
pass nullptr as stats object for db_bench-specific rate limiters since its stats are intended to capture background write activity only.
Closes https://github.com/facebook/rocksdb/pull/1997

Differential Revision: D4726806

Pulled By: ajkr

fbshipit-source-id: 8e4b225
2017-03-16 17:54:12 -07:00
Maysam Yabandeh
11526252cc Pinnableslice (2nd attempt)
Summary:
PinnableSlice

    Summary:
    Currently the point lookup values are copied to a string provided by the
    user. This incures an extra memcpy cost. This patch allows doing point lookup
    via a PinnableSlice which pins the source memory location (instead of
    copying their content) and releases them after the content is consumed
    by the user. The old API of Get(string) is translated to the new API
    underneath.

    Here is the summary for improvements:

    value 100 byte: 1.8% regular, 1.2% merge values
    value 1k byte: 11.5% regular, 7.5% merge values
    value 10k byte: 26% regular, 29.9% merge values
    The improvement for merge could be more if we extend this approach to
    pin the merge output and delay the full merge operation until the user
    actually needs it. We have put that for future work.

    PS:
    Sometimes we observe a small decrease in performance when switching from
    t5452014 to this patch but with the old Get(string) API. The d
Closes https://github.com/facebook/rocksdb/pull/1756

Differential Revision: D4391738

Pulled By: maysamyabandeh

fbshipit-source-id: 6f3edd3
2017-03-13 11:54:10 -07:00