Summary:
In gcc-7 the following is an error identified by -Werror=class-memaccess
In file included from ./table/get_context.h:14:0,
from db/version_set.cc:43:
./table/block.h: In constructor ‘rocksdb::BlockReadAmpBitmap::BlockReadAmpBitmap(size_t, size_t, rocksdb::Statistics*)’:
./table/block.h:73:53: error: ‘void* memset(void*, int, size_t)’ clearing an object of type ‘struct std::atomic<unsigned int>’ with no trivial copy-assignment; use value-initialization instead [-Werror=class-memaccess]
memset(bitmap_, 0, bitmap_size * kBytesPersEntry);
^
In file included from ./db/version_set.h:23:0,
from db/version_set.cc:12:
/toolchain/include/c++/8.0.0/atomic:684:12: note: ‘struct std::atomic<unsigned int>’ declared here
struct atomic<unsigned int> : __atomic_base<unsigned int>
^~~~~~~~~~~~~~~~~~~~
As a solution the default initializer can be applied in list context.
Signed-off-by: Daniel Black <daniel.black@au.ibm.com>
Closes https://github.com/facebook/rocksdb/pull/2561
Differential Revision: D5398714
Pulled By: siying
fbshipit-source-id: d883fb88ec7535eee60d551038fe91f14488be36
Summary:
Instead of hard coding the path of the internal repo.
Make TARGETS file work anywhere in fbcode
Closes https://github.com/facebook/rocksdb/pull/2586
Differential Revision: D5428122
Pulled By: IslamAbdelRahman
fbshipit-source-id: 21adec82bfbff14ea93532bee789b5f5bbee5b01
Summary:
We have FLAGS_benchmark_write_rate_limit to limit write rate in
db_bench, but it was not in use for updaterandom benchmark.
Closes https://github.com/facebook/rocksdb/pull/2578
Differential Revision: D5420328
Pulled By: yiwu-arbug
fbshipit-source-id: 5fa48c2b88f2f2dc83d615cb9c40c472bc916835
Summary:
Update blob db to use the newer ROCKS_LOG_* macro.
Closes https://github.com/facebook/rocksdb/pull/2574
Differential Revision: D5414526
Pulled By: yiwu-arbug
fbshipit-source-id: e428753aa5917e8b435cead2db26df586e5d1def
Summary:
We has to remove this line because previously it is only called when use_os_buffer = false. But now we have direct io to replace it.
Closes https://github.com/facebook/rocksdb/pull/2573
Differential Revision: D5412824
Pulled By: yiwu-arbug
fbshipit-source-id: 81f3f0cdf94566bfc09ef2ff123e40cddbe36b36
Summary:
Blob db use StackableDB::get which only get out the
value offset, but not the value.
Fix by making BlobDB::Get override the designated getter.
Closes https://github.com/facebook/rocksdb/pull/2553
Differential Revision: D5396823
Pulled By: yiwu-arbug
fbshipit-source-id: 5a7d1cf77ee44490f836a6537225955382296878
Summary:
this modify allows third-party tables able to support delete range
Closes https://github.com/facebook/rocksdb/pull/2035
Differential Revision: D5407973
Pulled By: ajkr
fbshipit-source-id: 82e364b7dd5a198660788d59543f15b8f95cc418
Summary:
Set to "-Xlint:deprecation -Xlint:unchecked" for non-zero
DEBUG_LEVEL
Shows up a few warnings for later perusal however passes ok.
Closes https://github.com/facebook/rocksdb/pull/2557
Differential Revision: D5408104
Pulled By: sagar0
fbshipit-source-id: 02908602e09b46d33b0dfc0ffd4b11954db03c53
Summary:
The casting seemed to cause a problem.
I think this might increase it to unsigned long.
Closes https://github.com/facebook/rocksdb/pull/2562
Differential Revision: D5406842
Pulled By: siying
fbshipit-source-id: 736adef31448229a58a1a48bdbe77792f36736e8
Summary:
* Create info log before db open to make blob db able to log to LOG file.
* Properly destroy blob db.
Closes https://github.com/facebook/rocksdb/pull/2567
Differential Revision: D5400034
Pulled By: yiwu-arbug
fbshipit-source-id: a49cfaf4b5c67d42d4cbb872bd5a9441828c17ce
Summary:
Found by gcc warning:
x86_64-pc-linux-gnu-g++ --version
x86_64-pc-linux-gnu-g++ (GCC) 7.1.1 20170710
tools/db_bench_tool.cc: In member function 'void rocksdb::Benchmark::RandomWithVerify(rocksdb::ThreadState*)':
tools/db_bench_tool.cc:4430:8: error: '%lu' directive output may be truncated writing between 1 and 19 bytes into a region of size between 0 and 66 [-Werror=format-truncation=]
void RandomWithVerify(ThreadState* thread) {
^~~~~~~~~~~~~~~~
tools/db_bench_tool.cc:4430:8: note: directive argument in the range [0, 9223372036854775807]
tools/db_bench_tool.cc:4492:13: note: 'snprintf' output between 37 and 128 bytes into a destination of size 100
snprintf(msg, sizeof(msg),
~~~~~~~~^~~~~~~~~~~~~~~~~~
"( get:%" PRIu64 " put:%" PRIu64 " del:%" PRIu64 " total:%" \
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PRIu64 " found:%" PRIu64 ")",
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
gets_done, puts_done, deletes_done, readwrites_, found);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1plus: all warnings being treated as errors
Makefile:1707: recipe for target 'tools/db_bench_tool.o' failed
Closes https://github.com/facebook/rocksdb/pull/2558
Differential Revision: D5398703
Pulled By: siying
fbshipit-source-id: 6ffa552bbd8b59cfc2c36289f86ff9b9acca8ca6
Summary:
Instead of ignoring UBSan checks, fix the negative shifts in
Hash(). Also add test to make sure the hash values are stable over
time. The values were computed before this change, so the test also
verifies the correctness of the change.
Closes https://github.com/facebook/rocksdb/pull/2546
Differential Revision: D5386369
Pulled By: yiwu-arbug
fbshipit-source-id: 6de4b44461a544d6222cc5d72d8cda2c0373d17e
Summary:
FIFOCompactionWithTTLTests are flaky when run in parallel, as there is a time element involved to it. Temporarily disabling them while I investigate a more robust testing solution like, say, mocking time.
Closes https://github.com/facebook/rocksdb/pull/2548
Differential Revision: D5386084
Pulled By: sagar0
fbshipit-source-id: 262886b25bdf091021d8553e780443a985e9bac4
Summary:
As titled. Also fixed an off-by-one error causing us to add one less range deletion than the user specified.
Closes https://github.com/facebook/rocksdb/pull/2544
Differential Revision: D5383451
Pulled By: ajkr
fbshipit-source-id: cbd5890c33f09bbb5c0c1f4bb952a1add32336e0
Summary:
target `utilities/merge_operators/cassandra/test_utils.d' given more than once in the same rule
remove the duplicate one
Closes https://github.com/facebook/rocksdb/pull/2542
Differential Revision: D5379570
Pulled By: lightmark
fbshipit-source-id: 353f38d085e9f627c1b3c53acef7a2c4bc71014d
Summary:
Valgrind reports that it is not initialized.
Closes https://github.com/facebook/rocksdb/pull/2541
Differential Revision: D5376084
Pulled By: maysamyabandeh
fbshipit-source-id: 55c312f4f506863aa0d25ff92c8c34b57f48b860
Summary:
Valgrind had false positive complaints about the initialization pattern for `GetCurrentTime()`'s argument in #2480. We can instead have the client initialize the time variable before calling `GetCurrentTime()`, and have `GetCurrentTime()` promise to only overwrite it in success case.
Closes https://github.com/facebook/rocksdb/pull/2526
Differential Revision: D5358689
Pulled By: ajkr
fbshipit-source-id: 857b189f24c19196f6bb299216f3e23e7bc4be42
Summary:
Currently metadata_block_size controls only index partition size. With this patch a partition is cut after any of index or filter partitions reaches metadata_block_size.
Closes https://github.com/facebook/rocksdb/pull/2452
Differential Revision: D5275651
Pulled By: maysamyabandeh
fbshipit-source-id: 5057e4424b4c8902043782e6bf8c38f0c4f25160
Summary:
Adding/Correcting inline comments and clarify the sync rules. To make it simple to reason, the rules are a big general which ended up to some extra synchronizations. However such synchronizations are not on the fast path, and they are worth the simplicity.
Closes https://github.com/facebook/rocksdb/pull/2517
Differential Revision: D5348239
Pulled By: maysamyabandeh
fbshipit-source-id: ff2e59fb1e568c122d2cdbf598310f3613b7d212
Summary:
Issue: #2478Fix: #2503
The bug happened when all of these conditions were satisfied:
- A subcompaction generates no keys
- `RangeDelAggregator::ShouldAddTombstones()` returns true because there's at least one non-obsoleted range deletion in its map
- None of the non-obsolete tombstones overlap with the subcompaction key-range
Under those conditions, we were creating a dedicated file for range deletions which was left empty, thus causing an error in VersionEdit.
I verified this test case fails before the #2503 fix and passes after.
Closes https://github.com/facebook/rocksdb/pull/2521
Differential Revision: D5352568
Pulled By: ajkr
fbshipit-source-id: f619cae39984ce9bb9b7a4e7a9ac0f2bb2ce43e9
Summary:
AddDBStats is in two steps of load and store, which is more efficient than fetch_add. This is however not thread-safe. Currently we have to protect concurrent access to AddDBStats with a mutex which is less efficient that fetch_add.
This patch adds the option to do fetch_add when AddDBStats. The results for my 2pc benchmark on sysbench is:
- vanilla: 68618 tps
- removing mutex on AddDBStats (unsafe): 69767 tps
- fetch_add for all AddDBStats: 69200 tps
- fetch_add only for concurrently access AddDBStats (this patch): 69579 tps
Closes https://github.com/facebook/rocksdb/pull/2505
Differential Revision: D5330656
Pulled By: maysamyabandeh
fbshipit-source-id: af64d7bee135b0e86b4fac323a4f9d9113eaa383
Summary:
The comma "," is not a valid separator for bash arrays.
Closes https://github.com/facebook/rocksdb/pull/2516
Differential Revision: D5348101
Pulled By: yiwu-arbug
fbshipit-source-id: 8f0afdac368e21076eb7366b7df7dbaaf158cf96
Summary:
We've got some DBs where iterators return Status with message "Corruption: block checksum mismatch" all the time. That's not very informative. It would be much easier to investigate if the error message contained the file name - then we would know e.g. how old the corrupted file is, which would be very useful for finding the root cause. This PR adds file name, offset and other stuff to some block corruption-related status messages.
It doesn't improve all the error messages, just a few that were easy to improve. I'm mostly interested in "block checksum mismatch" and "Bad table magic number" since they're the only corruption errors that I've ever seen in the wild.
Closes https://github.com/facebook/rocksdb/pull/2507
Differential Revision: D5345702
Pulled By: al13n321
fbshipit-source-id: fc8023d43f1935ad927cef1b9c55481ab3cb1339
Summary:
"make analyze" is reporting some errors. It's complicated to look but it seems to me that they are all false positive. Anyway, I think cleaning them up is a good idea. Some of the changes are hacky but I don't know a better way.
Closes https://github.com/facebook/rocksdb/pull/2508
Differential Revision: D5341710
Pulled By: siying
fbshipit-source-id: 6070e430e0e41a080ef441e05e8ec827d45efab6
Summary:
This is to resolve the asan complains. In the meanwhile I am working on clarifying/revisiting the sync rules.
Closes https://github.com/facebook/rocksdb/pull/2510
Differential Revision: D5338660
Pulled By: yiwu-arbug
fbshipit-source-id: ce6f6e0826d43a2c0bfa4328a00c78f73cd6498a
Summary:
Introducing FIFO compactions with TTL.
FIFO compaction is based on size only which makes it tricky to enable in production as use cases can have organic growth. A user requested an option to drop files based on the time of their creation instead of the total size.
To address that request:
- Added a new TTL option to FIFO compaction options.
- Updated FIFO compaction score to take TTL into consideration.
- Added a new table property, creation_time, to keep track of when the SST file is created.
- Creation_time is set as below:
- On Flush: Set to the time of flush.
- On Compaction: Set to the max creation_time of all the files involved in the compaction.
- On Repair and Recovery: Set to the time of repair/recovery.
- Old files created prior to this code change will have a creation_time of 0.
- FIFO compaction with TTL is enabled when ttl > 0. All files older than ttl will be deleted during compaction. i.e. `if (file.creation_time < (current_time - ttl)) then delete(file)`. This will enable cases where you might want to delete all files older than, say, 1 day.
- FIFO compaction will fall back to the prior way of deleting files based on size if:
- the creation_time of all files involved in compaction is 0.
- the total size (of all SST files combined) does not drop below `compaction_options_fifo.max_table_files_size` even if the files older than ttl are deleted.
This feature is not supported if max_open_files != -1 or with table formats other than Block-based.
**Test Plan:**
Added tests.
**Benchmark results:**
Base: FIFO with max size: 100MB ::
```
svemuri@dev15905 ~/rocksdb (fifo-compaction) $ TEST_TMPDIR=/dev/shm ./db_bench --benchmarks=readwhilewriting --num=5000000 --threads=16 --compaction_style=2 --fifo_compaction_max_table_files_size_mb=100
readwhilewriting : 1.924 micros/op 519858 ops/sec; 13.6 MB/s (1176277 of 5000000 found)
```
With TTL (a low one for testing) ::
```
svemuri@dev15905 ~/rocksdb (fifo-compaction) $ TEST_TMPDIR=/dev/shm ./db_bench --benchmarks=readwhilewriting --num=5000000 --threads=16 --compaction_style=2 --fifo_compaction_max_table_files_size_mb=100 --fifo_compaction_ttl=20
readwhilewriting : 1.902 micros/op 525817 ops/sec; 13.7 MB/s (1185057 of 5000000 found)
```
Example Log lines:
```
2017/06/26-15:17:24.609249 7fd5a45ff700 (Original Log Time 2017/06/26-15:17:24.609177) [db/compaction_picker.cc:1471] [default] FIFO compaction: picking file 40 with creation time 1498515423 for deletion
2017/06/26-15:17:24.609255 7fd5a45ff700 (Original Log Time 2017/06/26-15:17:24.609234) [db/db_impl_compaction_flush.cc:1541] [default] Deleted 1 files
...
2017/06/26-15:17:25.553185 7fd5a61a5800 [DEBUG] [db/db_impl_files.cc:309] [JOB 0] Delete /dev/shm/dbbench/000040.sst type=2 #40 -- OK
2017/06/26-15:17:25.553205 7fd5a61a5800 EVENT_LOG_v1 {"time_micros": 1498515445553199, "job": 0, "event": "table_file_deletion", "file_number": 40}
```
SST Files remaining in the dbbench dir, after db_bench execution completed:
```
svemuri@dev15905 ~/rocksdb (fifo-compaction) $ ls -l /dev/shm//dbbench/*.sst
-rw-r--r--. 1 svemuri users 30749887 Jun 26 15:17 /dev/shm//dbbench/000042.sst
-rw-r--r--. 1 svemuri users 30768779 Jun 26 15:17 /dev/shm//dbbench/000044.sst
-rw-r--r--. 1 svemuri users 30757481 Jun 26 15:17 /dev/shm//dbbench/000046.sst
```
Closes https://github.com/facebook/rocksdb/pull/2480
Differential Revision: D5305116
Pulled By: sagar0
fbshipit-source-id: 3e5cfcf5dd07ed2211b5b37492eb235b45139174
Chris Lamb