Commit Graph

601 Commits

Author SHA1 Message Date
Adam Retter
1c63b82b9a Snappy must be built with position independent code for static linking 2020-03-07 13:56:13 +01:00
Adam Retter
466af89356 Update to latest Snappy to fix compilation issue on latest MacOS XCode 2020-03-07 13:08:19 +01:00
Peter Dillinger
614c6d453e Don't download from (unreliable) maven.org (#6348)
Summary:
I set up a mirror of our Java deps on github so we can download
them through github URLs rather than maven.org, which is proving
terribly unreliable from Travis builds.

Also sanitized calls to curl, so they are easier to read and
appropriately fail on download failure.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6348

Test Plan: CI

Differential Revision: D19633621

Pulled By: pdillinger

fbshipit-source-id: 7eb3f730953db2ead758dc94039c040f406790f3
2020-03-06 22:29:05 +01:00
Adam Retter
03492d61d4 Update 3rd-party libraries used by RocksJava (#6084)
Summary:
* LZ4 1.8.3 -> 1.9.2
* ZSTD 1.4.0 -> 1.4.4
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6084

Differential Revision: D18710224

fbshipit-source-id: a461ef19a473d3480acdc027f627ec3048730692
2020-03-06 22:27:09 +01:00
Yun Tang
49f97dc93e Download bzip2 packages from sourceforge (#5995)
Summary:
From bzip2's official [download page](http://www.bzip.org/downloads.html), we could download it from sourceforge. This source would be more credible than previous web archive.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5995

Differential Revision: D18377662

fbshipit-source-id: e8353f83d5d6ea6067f78208b7bfb7f0d5b49c05
2020-03-06 22:25:09 +01:00
Adam Retter
931e6704af Update the version of the dependencies used by the RocksJava static build (#4761)
Summary:
Note that Snappy now requires CMake to build it, so I added a note about RocksJava to the README.md file.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4761

Differential Revision: D13403811

Pulled By: ajkr

fbshipit-source-id: 8fcd7e3dc7f7152080364a374d3065472f417eff
2020-03-06 22:21:26 +01:00
Adam Retter
689c15523f ARM64 commits to 5.18.3 to create 5.18.4 (#6250)
* RocksDB CRC32c optimization with ARMv8 Intrinsic (#5221)

Summary:
1. Add Arm linear crc32c implemtation for RocksDB.
2. Arm runtime check for crc32
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5221

Differential Revision: D15013685

Pulled By: siying

fbshipit-source-id: 2c2983743d26656d93f212dc7c1a3cf66a1acf12

* Support rocksdbjava aarch64 build and test (#5258)

Summary:
Verified with an Ampere Computing eMAG aarch64 system.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5258

Differential Revision: D15807309

Pulled By: maysamyabandeh

fbshipit-source-id: ab85d2fd3fe40e6094430ab0eba557b1e979510d

* Cleanup the Arm64 CRC32 unused warning (#5565)

Summary:
When 'HAVE_ARM64_CRC' is set, the blew methods:

- bool rocksdb::crc32c::isSSE42()
- bool rocksdb::crc32c::isPCLMULQDQ()

are defined but not used, the unused-function is raised
when do rocksdb build.

This patch try to cleanup these warnings by add ifndef,
if it build under the HAVE_ARM64_CRC, we will not define
`isSSE42` and `isPCLMULQDQ`.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5565

Differential Revision: D16233654

fbshipit-source-id: c32a9dda7465dbf65f9ccafef159124db92cdffd

* Fixes for building RocksJava releases on arm64v8

Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/5674

Differential Revision: D16870338

fbshipit-source-id: c8dac644b1479fa734b491f3a8d50151772290f7

* Remove invalid comparison of va_list and nullptr (#5836)

Summary:
The comparison of va_list and nullptr is always False under any arch, and will raise invalid operands of types error in aarch64 env (`error: invalid operands of types ‘va_list {aka __va_list}’ and ‘std::nullptr_t’ to binary ‘operator!=’`).

This patch removes this invalid assert.

Closes: https://github.com/facebook/rocksdb/issues/4277
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5836

Differential Revision: D17532470

fbshipit-source-id: ca98078ecbc6a9416c69de3bd6ffcfa33a0f0185

* Fix naming of library on PPC64LE (#6080)

Summary:
**NOTE**: This also needs to be back-ported to be 6.4.6

Fix a regression introduced in f2bf0b2 by https://github.com/facebook/rocksdb/pull/5674 whereby the compiled library would get the wrong name on PPC64LE platforms.

On PPC64LE, the regression caused the library to be named `librocksdbjni-linux64.so` instead of `librocksdbjni-linux-ppc64le.so`.

This PR corrects the name back to `librocksdbjni-linux-ppc64le.so` and also corrects the ordering of conditional arguments in the Makefile to match the expected order as defined in the documentation for Make.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6080

Differential Revision: D18710351

fbshipit-source-id: d4db87ef378263b57de7f9edce1b7d15644cf9de

Co-authored-by: Yuqi <yuqi.gu@arm.com>
Co-authored-by: Patrick Zhang <cnqpzhang@163.com>
Co-authored-by: Yikun Jiang <yikunkero@gmail.com>
2020-01-06 10:39:50 -08:00
Abhishek Madan
33564d2c10 Remove v1 RangeDelAggregator (#4778)
Summary:
Now that v2 is fully functional, the v1 aggregator is removed.
The v2 aggregator has been renamed.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4778

Differential Revision: D13495930

Pulled By: abhimadan

fbshipit-source-id: 9d69500a60a283e79b6c4fa938fc68a8aa4d40d6
2018-12-18 15:23:20 -08:00
Huachao Huang
5e72bc113a Add SstFileReader to read sst files (#4717)
Summary:
A user friendly sst file reader is useful when we want to access sst
files outside of RocksDB. For example, we can generate an sst file
with SstFileWriter and send it to other places, then use SstFileReader
to read the file and process the entries in other ways.

Also rename the original SstFileReader to SstFileDumper because of
name conflict, and seems SstFileDumper is more appropriate for tools.

TODO: there is only a very simple test now, because I want to get some feedback first.
If the changes look good, I will add more tests soon.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4717

Differential Revision: D13212686

Pulled By: ajkr

fbshipit-source-id: 737593383264c954b79e63edaf44aaae0d947e56
2018-11-27 13:02:23 -08:00
Abhishek Madan
457f77b9ff Introduce RangeDelAggregatorV2 (#4649)
Summary:
The old RangeDelAggregator did expensive pre-processing work
to create a collapsed, binary-searchable representation of range
tombstones. With FragmentedRangeTombstoneIterator, much of this work is
now unnecessary. RangeDelAggregatorV2 takes advantage of this by seeking
in each iterator to find a covering tombstone in ShouldDelete, while
doing minimal work in AddTombstones. The old RangeDelAggregator is still
used during flush/compaction for now, though RangeDelAggregatorV2 will
support those uses in a future PR.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4649

Differential Revision: D13146964

Pulled By: abhimadan

fbshipit-source-id: be29a4c020fc440500c137216fcc1cf529571eb3
2018-11-21 10:56:45 -08:00
Sagar Vemuri
dd742e2416 Automatically set LITE=1 on passing OPT="-DROCKSDB_LITE" (#4671)
Summary:
In #4652 we are setting -Os for lite builds only when LITE=1 is specified. But currently almost all the users invoke lite build via OPT="-DROCKSDB_LITE=1". So this diff tries to set LITE=1 when users already pass in -DROCKSDB_LITE=1 via the command line.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4671

Differential Revision: D13033801

Pulled By: sagar0

fbshipit-source-id: e7b506cee574f9e3f42221ee6647915011c78d78
2018-11-12 16:58:54 -08:00
Yi Wu
7a2f98a0fc Fix liblua link error when building shared lib under fbcode (#4651)
Summary:
When running `make shared_lib` under fbcode, there's liblua link error: https://gist.github.com/yiwu-arbug/b796bff6b3d46d90c1ed878d983de50d
This is because we link liblua.a when building shared lib. If we want to link with liblua, we need to link with liblua_pic.a instead. Fixing by simply not link with lua.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4651

Differential Revision: D12964798

Pulled By: yiwu-arbug

fbshipit-source-id: 18d6cee94afe20748068822b76e29ef255cdb04d
2018-11-09 14:13:40 -08:00
Yi Wu
8c2a48742a Use -Os for lite release build (#4652)
Summary:
Set `-Os` for lite release build to minimize binary size.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4652

Differential Revision: D12965427

Pulled By: yiwu-arbug

fbshipit-source-id: c8b647642c24b3e5df6a2cd13112e452a08e8398
2018-11-07 22:10:28 -08:00
Yanqin Jin
912bbbbc72 Enable crash-recovery stress test for atomic flush (#4605)
Summary:
This PR adds test of atomic flush to our continuous stress tests.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4605

Differential Revision: D12840607

Pulled By: riversand963

fbshipit-source-id: 0da187572791a59530065a7952697c05b1197ad9
2018-10-30 14:03:36 -07:00
Abhishek Madan
8c78348c77 Use only "local" range tombstones during Get (#4449)
Summary:
Previously, range tombstones were accumulated from every level, which
was necessary if a range tombstone in a higher level covered a key in a lower
level. However, RangeDelAggregator::AddTombstones's complexity is based on
the number of tombstones that are currently stored in it, which is wasteful in
the Get case, where we only need to know the highest sequence number of range
tombstones that cover the key from higher levels, and compute the highest covering
sequence number at the current level. This change introduces this optimization, and
removes the use of RangeDelAggregator from the Get path.

In the benchmark results, the following command was used to initialize the database:
```
./db_bench -db=/dev/shm/5k-rts -use_existing_db=false -benchmarks=filluniquerandom -write_buffer_size=1048576 -compression_type=lz4 -target_file_size_base=1048576 -max_bytes_for_level_base=4194304 -value_size=112 -key_size=16 -block_size=4096 -level_compaction_dynamic_level_bytes=true -num=5000000 -max_background_jobs=12 -benchmark_write_rate_limit=20971520 -range_tombstone_width=100 -writes_per_range_tombstone=100 -max_num_range_tombstones=50000 -bloom_bits=8
```

...and the following command was used to measure read throughput:
```
./db_bench -db=/dev/shm/5k-rts/ -use_existing_db=true -benchmarks=readrandom -disable_auto_compactions=true -num=5000000 -reads=100000 -threads=32
```

The filluniquerandom command was only run once, and the resulting database was used
to measure read performance before and after the PR. Both binaries were compiled with
`DEBUG_LEVEL=0`.

Readrandom results before PR:
```
readrandom   :       4.544 micros/op 220090 ops/sec;   16.9 MB/s (63103 of 100000 found)
```

Readrandom results after PR:
```
readrandom   :      11.147 micros/op 89707 ops/sec;    6.9 MB/s (63103 of 100000 found)
```

So it's actually slower right now, but this PR paves the way for future optimizations (see #4493).

----
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4449

Differential Revision: D10370575

Pulled By: abhimadan

fbshipit-source-id: 9a2e152be1ef36969055c0e9eb4beb0d96c11f4d
2018-10-24 12:31:12 -07:00
Yi Wu
742302a1a3 Fix compile error with aligned-new (#4576)
Summary:
In fbcode when we build with clang7++, although -faligned-new is available in compile phase, we link with an older version of libstdc++.a and it doesn't come with aligned-new support (e.g. `nm libstdc++.a | grep align_val_t` return empty). In this case the previous -faligned-new detection can pass but will end up with link error. Fixing it by only have the detection for non-fbcode build.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4576

Differential Revision: D10500008

Pulled By: yiwu-arbug

fbshipit-source-id: b375de4fbb61d2a08e54ab709441aa8e7b4b08cf
2018-10-23 10:55:41 -07:00
Yi Wu
d6f2ecf49c Utility to run task periodically in a thread (#4423)
Summary:
Introduce `RepeatableThread` utility to run task periodically in a separate thread. It is basically the same as the the same class in fbcode, and in addition provide a helper method to let tests mock time and trigger execution one at a time.

We can use this class to replace `TimerQueue` in #4382 and `BlobDB`.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4423

Differential Revision: D10020932

Pulled By: yiwu-arbug

fbshipit-source-id: 3616bef108c39a33c92eedb1256de424b7c04087
2018-09-27 15:28:00 -07:00
Abhishek Madan
1626f6ab6b Add RangeDelAggregator microbenchmarks (#4363)
Summary:
To measure the results of upcoming DeleteRange v2 work, this commit adds
simple benchmarks for RangeDelAggregator. It measures the average time
for AddTombstones and ShouldDelete calls.

Using this to compare the results before #4014 and on the latest master (using the default arguments) produces the following results:

Before #4014:
```
=======================
Results:
=======================
AddTombstones:          1356.28 us
ShouldDelete:           0.401732 us
```

Latest master:
```
=======================
Results:
=======================
AddTombstones:          740.82 us
ShouldDelete:           0.383271 us
```
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4363

Differential Revision: D9881676

Pulled By: abhimadan

fbshipit-source-id: 793e7d61aa4b9d47eb917bbcc03f08695b5e5442
2018-09-17 14:58:31 -07:00
Yanqin Jin
3ba3b153ef Fix Makefile target 'jtest' on PowerPC (#4357)
Summary:
Before the fix:
On a PowerPC machine, run the following
```
$ make jtest
```
The command will fail due to "undefined symbol: crc32c_ppc". It was caused by
'rocksdbjava' Makefile target not including crc32c_ppc object files when
generating the shared lib. The fix is simple.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4357

Differential Revision: D9779474

Pulled By: riversand963

fbshipit-source-id: 3c5ec9068c2b9c796e6500f71cd900267064fd51
2018-09-11 16:37:23 -07:00
Zhongyi Xie
1cf17ba53b Rename DecodeCFAndKey to resolve naming conflict in unity test (#4323)
Summary:
Currently unity-test is failing because both trace_replay.cc and trace_analyzer_tool.cc defined `DecodeCFAndKey` under anonymous namespace. It is supposed to be fine except unity test will dump all source files together and now we have a conflict.
Another issue with trace_analyzer_tool.cc is that it is using some utility functions from ldb_cmd which is not included in Makefile for unity_test, I chose to update TESTHARNESS to include LIBOBJECTS. Feel free to comment if there is a less intrusive way to solve this.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4323

Differential Revision: D9599170

Pulled By: miasantreble

fbshipit-source-id: 38765b11f8e7de92b43c63bdcf43ea914abdc029
2018-08-30 18:42:51 -07:00
Sagar Vemuri
2f871bc85e Download bzip2 packages from Internet Archive (#4306)
Summary:
Since bzip.org is no longer maintained, download the bzip2 packages from a snapshot taken by the internet archive until we figure out a more credible source.

Fixes issue: #4305
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4306

Differential Revision: D9514868

Pulled By: sagar0

fbshipit-source-id: 57c6a141a62e652f94377efc7ca9916b458e68d5
2018-08-27 09:58:24 -07:00
Zhichao Cao
9e2d5ab6bf Adjusted the Makefile of trace_analyzer to isolate the Gflags from other (#4290)
Summary:
Previously, the trace_analyzer_tool will be complied with other libobjects, which let the GFLAGS of trace_analyzer appear in other tools (e.g., db_bench, rocksdb_dump, and etc.). When using '--help', the help information of trace_analyzer will appear in other tool help information, which will cause confusion issues.

Currently, trace_analyzer_tool is built and used only by trace_analyzer and trace_analyzer_test to avoid the issues.

Tested with make asan_check.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4290

Differential Revision: D9413163

Pulled By: zhichao-cao

fbshipit-source-id: ed5d20c4575a53ca15ff62a2ffe601d5cf278cc4
2018-08-21 10:47:24 -07:00
Zhichao Cao
999d955e4f RocksDB Trace Analyzer (#4091)
Summary:
A framework of trace analyzing for RocksDB

After collecting the trace by using the tool of [PR #3837](https://github.com/facebook/rocksdb/pull/3837). User can use the Trace Analyzer to interpret, analyze, and characterize the collected workload.
**Input:**
1. trace file
2. Whole keys space file

**Statistics:**
1. Access count of each operation (Get, Put, Delete, SingleDelete, DeleteRange, Merge) in each column family.
2. Key hotness (access count) of each one
3. Key space separation based on given prefix
4. Key size distribution
5. Value size distribution if appliable
6. Top K accessed keys
7. QPS statistics including the average QPS and peak QPS
8. Top K accessed prefix
9. The query correlation analyzing, output the number of X after Y and the corresponding average time
    intervals

**Output:**
1. key access heat map (either in the accessed key space or whole key space)
2. trace sequence file (interpret the raw trace file to line base text file for future use)
3. Time serial (The key space ID and its access time)
4. Key access count distritbution
5. Key size distribution
6. Value size distribution (in each intervals)
7. whole key space separation by the prefix
8. Accessed key space separation by the prefix
9. QPS of each operation and each column family
10. Top K QPS and their accessed prefix range

**Test:**
1. Added the unit test of analyzing Get, Put, Delete, SingleDelete, DeleteRange, Merge
2. Generated the trace and analyze the trace

**Implemented but not tested (due to the limitation of trace_replay):**
1. Analyzing Iterator, supporting Seek() and SeekForPrev() analyzing
2. Analyzing the number of Key found by Get

**Future Work:**
1.  Support execution time analyzing of each requests
2.  Support cache hit situation and block read situation of Get
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4091

Differential Revision: D9256157

Pulled By: zhichao-cao

fbshipit-source-id: f0ceacb7eedbc43a3eee6e85b76087d7832a8fe6
2018-08-13 11:44:02 -07:00
Yanqin Jin
bdc6abd0b4 Enable cscope to exclude test source files (#4190)
Summary:
Usually when using cscope, the query results contain a lot of function calls in test, making it hard to browse. So this PR aims to provide an option to exclude test source files.

Add a new PHONY target, tags0, to exclude test source files while using cscope.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4190

Differential Revision: D9015901

Pulled By: riversand963

fbshipit-source-id: ea9a45756ccff5b26344d37e9ff1c02c5d9736d6
2018-07-26 11:12:29 -07:00
Fenggang Wu
8805ec2f49 DataBlockHashIndex: Standalone Implementation with Unit Test (#4139)
Summary:
The first step of the `DataBlockHashIndex` implementation. A string based hash table is implemented and unit-tested.

`DataBlockHashIndexBuilder`: `Add()` takes pairs of `<key, restart_index>`, and formats it into a string when `Finish()` is called.
`DataBlockHashIndex`: initialized by the formatted string, and can interpret it as a hash table. Lookup for a key is supported by iterator operation.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4139

Reviewed By: sagar0

Differential Revision: D8866764

Pulled By: fgwu

fbshipit-source-id: 7f015f0098632c65979a22898a50424384730b10
2018-07-24 11:43:37 -07:00
Adam Retter
c6d2a7f821 Build improvements: Split docker targets and parallelize java builds
Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/4165

Differential Revision: D8955531

Pulled By: sagar0

fbshipit-source-id: 97d5a1375e200bde3c6414f94703504a4ed7536a
2018-07-23 13:28:37 -07:00
Maysam Yabandeh
537a233941 Exclude StackableDB from transaction stress tests (#4132)
Summary:
The transactions are currently tested with and without using StackableDB. This is mostly to check that the code path is consistent with stackable db as well. Slow, stress tests however do not benefit from being run again with StackableDB. The patch excludes StackableDB from such tests.
On a single core it reduced the runtime of transaction_test from 199s to 135s.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4132

Differential Revision: D8841655

Pulled By: maysamyabandeh

fbshipit-source-id: 7b9aaba2673b542b195439dfb306cef26bd63b19
2018-07-13 13:59:11 -07:00
Anand Ananthabhotla
52d4c9b7f6 Allow DB resume after background errors (#3997)
Summary:
Currently, if RocksDB encounters errors during a write operation (user requested or BG operations), it sets DBImpl::bg_error_ and fails subsequent writes. This PR allows the DB to be resumed for certain classes of errors. It consists of 3 parts -
1. Introduce Status::Severity in rocksdb::Status to indicate whether a given error can be recovered from or not
2. Refactor the error handling code so that setting bg_error_ and deciding on severity is in one place
3. Provide an API for the user to clear the error and resume the DB instance

This whole change is broken up into multiple PRs. Initially, we only allow clearing the error for Status::NoSpace() errors during background flush/compaction. Subsequent PRs will expand this to include more errors and foreground operations such as Put(), and implement a polling mechanism for out-of-space errors.
Closes https://github.com/facebook/rocksdb/pull/3997

Differential Revision: D8653831

Pulled By: anand1976

fbshipit-source-id: 6dc835c76122443a7668497c0226b4f072bc6afd
2018-06-28 12:34:40 -07:00
Daniel Black
346d1069c3 Align StatisticsImpl / StatisticsData (#4036)
Summary:
Pinned the alignment of StatisticsData to the cacheline size rather than just extending its size (which could go over two cache lines)if unaligned in allocation.

Avoid compile errors in the process as per individual commit messages.

strengthen static_assert to CACHELINE rather than the highest common multiple.
Closes https://github.com/facebook/rocksdb/pull/4036

Differential Revision: D8582844

Pulled By: yiwu-arbug

fbshipit-source-id: 363c37029f28e6093e06c60b987bca9aa204bc71
2018-06-25 22:58:19 -07:00
Adam Retter
64c85d0d97 Set DEBUG_LEVEL=0 for RocksJava Mac Release (#4040)
Summary:
Closes https://github.com/facebook/rocksdb/issues/2717
Closes https://github.com/facebook/rocksdb/pull/4040

Differential Revision: D8592058

Pulled By: sagar0

fbshipit-source-id: d01099a1067aa32659abb0b4bed641d919a3927e
2018-06-22 10:57:48 -07:00
Manuel Ung
01e3c30def Extend existing unit tests to run with WriteUnprepared as well
Summary:
As titled.

I have not extended the Compatibility tests because the new WAL markers are still unimplemented.
Closes https://github.com/facebook/rocksdb/pull/3941

Differential Revision: D8238394

Pulled By: lth

fbshipit-source-id: 980e3d44837bbf2cfa64047f9738f559dfac4b1d
2018-06-01 14:58:41 -07:00
Mike Kolupaev
8bf555f487 Change and clarify the relationship between Valid(), status() and Seek*() for all iterators. Also fix some bugs
Summary:
Before this PR, Iterator/InternalIterator may simultaneously have non-ok status() and Valid() = true. That state means that the last operation failed, but the iterator is nevertheless positioned on some unspecified record. Likely intended uses of that are:
 * If some sst files are corrupted, a normal iterator can be used to read the data from files that are not corrupted.
 * When using read_tier = kBlockCacheTier, read the data that's in block cache, skipping over the data that is not.

However, this behavior wasn't documented well (and until recently the wiki on github had misleading incorrect information). In the code there's a lot of confusion about the relationship between status() and Valid(), and about whether Seek()/SeekToLast()/etc reset the status or not. There were a number of bugs caused by this confusion, both inside rocksdb and in the code that uses rocksdb (including ours).

This PR changes the convention to:
 * If status() is not ok, Valid() always returns false.
 * Any seek operation resets status. (Before the PR, it depended on iterator type and on particular error.)

This does sacrifice the two use cases listed above, but siying said it's ok.

Overview of the changes:
 * A commit that adds missing status checks in MergingIterator. This fixes a bug that actually affects us, and we need it fixed. `DBIteratorTest.NonBlockingIterationBugRepro` explains the scenario.
 * Changes to lots of iterator types to make all of them conform to the new convention. Some bug fixes along the way. By far the biggest changes are in DBIter, which is a big messy piece of code; I tried to make it less big and messy but mostly failed.
 * A stress-test for DBIter, to gain some confidence that I didn't break it. It does a few million random operations on the iterator, while occasionally modifying the underlying data (like ForwardIterator does) and occasionally returning non-ok status from internal iterator.

To find the iterator types that needed changes I searched for "public .*Iterator" in the code. Here's an overview of all 27 iterator types:

Iterators that didn't need changes:
 * status() is always ok(), or Valid() is always false: MemTableIterator, ModelIter, TestIterator, KVIter (2 classes with this name anonymous namespaces), LoggingForwardVectorIterator, VectorIterator, MockTableIterator, EmptyIterator, EmptyInternalIterator.
 * Thin wrappers that always pass through Valid() and status(): ArenaWrappedDBIter, TtlIterator, InternalIteratorFromIterator.

Iterators with changes (see inline comments for details):
 * DBIter - an overhaul:
    - It used to silently skip corrupted keys (`FindParseableKey()`), which seems dangerous. This PR makes it just stop immediately after encountering a corrupted key, just like it would for other kinds of corruption. Let me know if there was actually some deeper meaning in this behavior and I should put it back.
    - It had a few code paths silently discarding subiterator's status. The stress test caught a few.
    - The backwards iteration code path was expecting the internal iterator's set of keys to be immutable. It's probably always true in practice at the moment, since ForwardIterator doesn't support backwards iteration, but this PR fixes it anyway. See added DBIteratorTest.ReverseToForwardBug for an example.
    - Some parts of backwards iteration code path even did things like `assert(iter_->Valid())` after a seek, which is never a safe assumption.
    - It used to not reset status on seek for some types of errors.
    - Some simplifications and better comments.
    - Some things got more complicated from the added error handling. I'm open to ideas for how to make it nicer.
 * MergingIterator - check status after every operation on every subiterator, and in some places assert that valid subiterators have ok status.
 * ForwardIterator - changed to the new convention, also slightly simplified.
 * ForwardLevelIterator - fixed some bugs and simplified.
 * LevelIterator - simplified.
 * TwoLevelIterator - changed to the new convention. Also fixed a bug that would make SeekForPrev() sometimes silently ignore errors from first_level_iter_.
 * BlockBasedTableIterator - minor changes.
 * BlockIter - replaced `SetStatus()` with `Invalidate()` to make sure non-ok BlockIter is always invalid.
 * PlainTableIterator - some seeks used to not reset status.
 * CuckooTableIterator - tiny code cleanup.
 * ManagedIterator - fixed some bugs.
 * BaseDeltaIterator - changed to the new convention and fixed a bug.
 * BlobDBIterator - seeks used to not reset status.
 * KeyConvertingIterator - some small change.
Closes https://github.com/facebook/rocksdb/pull/3810

Differential Revision: D7888019

Pulled By: al13n321

fbshipit-source-id: 4aaf6d3421c545d16722a815b2fa2e7912bc851d
2018-05-17 02:56:56 -07:00
Andrew Kryczka
6fc1bccef5 Fix crash test allocation error under TSAN
Summary:
We were seeing the following error: "ThreadSanitizer: DenseSlabAllocator overflow. Dying."

It is fixable by mmap'ing a smaller region for keys' expected values, which this PR achieves by reducing the number of keys.
Closes https://github.com/facebook/rocksdb/pull/3803

Differential Revision: D7874478

Pulled By: ajkr

fbshipit-source-id: 433939f5cb92410ab4777d540cb0cc2ee0fe6c2e
2018-05-04 13:44:04 -07:00
David Lai
3be9b36453 comment unused parameters to turn on -Wunused-parameter flag
Summary:
This PR comments out the rest of the unused arguments which allow us to turn on the -Wunused-parameter flag. This is the second part of a codemod relating to https://github.com/facebook/rocksdb/pull/3557.
Closes https://github.com/facebook/rocksdb/pull/3662

Differential Revision: D7426121

Pulled By: Dayvedde

fbshipit-source-id: 223994923b42bd4953eb016a0129e47560f7e352
2018-04-12 17:59:16 -07:00
zhsj
6571770030 fix shared libary compile on ppc
Summary:
shared-ppc-objects is missed in $(SHARED4) target
Closes https://github.com/facebook/rocksdb/pull/3619

Differential Revision: D7475767

Pulled By: ajkr

fbshipit-source-id: d957ac7290bab3cd542af504405fb5ff912bfbf1
2018-04-05 19:58:20 -07:00
Adam Retter
3cb591954e Allow rocksdbjavastatic to also be built as debug build
Summary: Closes https://github.com/facebook/rocksdb/pull/3654

Differential Revision: D7417948

Pulled By: sagar0

fbshipit-source-id: 9514df9328181e54a6384764444c0c7ce66e7f5f
2018-03-28 16:30:36 -07:00
Yanqin Jin
1f5def1653 Fix race condition causing double deletion of ssts
Summary:
Possible interleaved execution of background compaction thread calling `FindObsoleteFiles (no full scan) / PurgeObsoleteFiles` and user thread calling `FindObsoleteFiles (full scan) / PurgeObsoleteFiles` can lead to race condition on which RocksDB attempts to delete a file twice. The second attempt will fail and return `IO error`. This may occur to other files,  but this PR targets sst.
Also add a unit test to verify that this PR fixes the issue.

The newly added unit test `obsolete_files_test` has a test case for this scenario, implemented in `ObsoleteFilesTest#RaceForObsoleteFileDeletion`. `TestSyncPoint`s are used to coordinate the interleaving the `user_thread` and background compaction thread. They execute as follows
```
timeline              user_thread                background_compaction thread
t1   |                                          FindObsoleteFiles(full_scan=false)
t2   |     FindObsoleteFiles(full_scan=true)
t3   |                                          PurgeObsoleteFiles
t4   |     PurgeObsoleteFiles
     V
```
When `user_thread` invokes `FindObsoleteFiles` with full scan, it collects ALL files in RocksDB directory, including the ones that background compaction thread have collected in its job context. Then `user_thread` will see an IO error when trying to delete these files in `PurgeObsoleteFiles` because background compaction thread has already deleted the file in `PurgeObsoleteFiles`.
To fix this, we make RocksDB remember which (SST) files have been found by threads after calling `FindObsoleteFiles` (see `DBImpl#files_grabbed_for_purge_`). Therefore, when another thread calls `FindObsoleteFiles` with full scan, it will not collect such files.

ajkr could you take a look and comment? Thanks!
Closes https://github.com/facebook/rocksdb/pull/3638

Differential Revision: D7384372

Pulled By: riversand963

fbshipit-source-id: 01489516d60012e722ee65a80e1449e589ce26d3
2018-03-28 10:29:59 -07:00
Sagar Vemuri
23f9d93f47 Exclude MySQLStyleTransactionTest.TransactionStressTest* from valgrind
Summary:
I found that each instance of MySQLStyleTransactionTest.TransactionStressTest/x is taking more than 10 hours to complete on our continuous testing environment, causing the whole valgrind run to timeout after a day. So excluding these tests.
Closes https://github.com/facebook/rocksdb/pull/3652

Differential Revision: D7400332

Pulled By: sagar0

fbshipit-source-id: 987810574506d01487adf7c2de84d4817ec3d22d
2018-03-26 10:27:47 -07:00
Tobias Tschinkowitz
ccb761364d Enable compilation on OpenBSD
Summary:
I modified the Makefile so that we can compile rocksdb on OpenBSD.
The instructions for building have been added to INSTALL.md.
The whole compilation process works fine like this on OpenBSD-current
Closes https://github.com/facebook/rocksdb/pull/3617

Differential Revision: D7323754

Pulled By: siying

fbshipit-source-id: 990037d1cc69138d22f85bd77ef4dc8c1ba9edea
2018-03-19 12:30:05 -07:00
Yanqin Jin
1139422dfb Fix the command used to generate ctags
Summary:
In original $ROCKSDB_HOME/Makefile, the command used to generate ctags is
```
ctags * -R
```
However, this failed to generate tags for me.
I did some search on the usage of ctags command and found that it should be
```
ctags -R .
```
or
```
ctags -R *
```
After the change, I can find the tags in vim using `:ts <identifier>`.
Closes https://github.com/facebook/rocksdb/pull/3626

Reviewed By: ajkr

Differential Revision: D7320217

Pulled By: riversand963

fbshipit-source-id: e4cd8f8a67842370a2343f0213df3cbd07754111
2018-03-18 22:43:18 -07:00
Zhongyi Xie
09e5d7af8c add 4th test_group in travis
Summary:
to overcome the space limitation
Closes https://github.com/facebook/rocksdb/pull/3605

Differential Revision: D7262607

Pulled By: miasantreble

fbshipit-source-id: 1b1148026f17a7ee4b9f3a17ddc6b4ba9cf7af7f
2018-03-13 18:57:29 -07:00
Pengchao Wang
1ccdc2c337 Fix vagrant build process
Summary:
https://blog.github.com/2018-02-23-weak-cryptographic-standards-removed/
Github dropped supporting some weak cryptographic protocols from their website couple of weeks ago which cause our vagrant build process to fail on curl downloading step.  This diff force curl use tls v1.2 protocol if it is supported so that it does not rely on the default protocol on different systems.
Closes https://github.com/facebook/rocksdb/pull/3561

Differential Revision: D7148575

Pulled By: wpc

fbshipit-source-id: b8cecfdfeb2bc8236de2d0d14f044532befec98c
2018-03-05 11:57:41 -08:00
Siying Dong
74748611a8 Suppress UBSAN error in finer guanularity
Summary:
Now we suppress alignment UBSAN error as a whole. Suppressing 3-way CRC and murmurhash feels a better idea than turning off alignment check as a whole.
Closes https://github.com/facebook/rocksdb/pull/3495

Differential Revision: D6971273

Pulled By: siying

fbshipit-source-id: 080b59fed6df494b9f622ef7cb5d42d39e6a8cdf
2018-02-13 12:18:07 -08:00
Siying Dong
821e0b1683 Disable options_settable_test in UBSAN and fix UBSAN failure in blob_…
Summary:
…db_test

options_settable_test won't pass UBSAN so disable it.
blob_db_test fails in UBSAN as SnapshotList doesn't initialize all the fields in dummy snapshot. Fix it. I don't understand why only blob_db_test fails though.
Closes https://github.com/facebook/rocksdb/pull/3477

Differential Revision: D6928681

Pulled By: siying

fbshipit-source-id: e31dd300fcdecdfd4f6af279a0987fd0cdec5122
2018-02-07 14:42:26 -08:00
Siying Dong
1336a7742d Disable alignment check in UBSAN
Summary:
Disable alignment check in UBSAN for now. Now we can't get signals to meaningful failures. We can reenable it after we figure out how we can suppress failures in finer grain manner.
Closes https://github.com/facebook/rocksdb/pull/3473

Differential Revision: D6925971

Pulled By: siying

fbshipit-source-id: a0f1a242cde866abbc5c1eeee9ff8d1d7d582ac4
2018-02-07 10:58:01 -08:00
Zhongyi Xie
5eccf0b9d5 add -fno-sanitize-recover option to force exit on errors
Summary:
By default if ubsan detects any problem, it outputs a “runtime error:” message, and in most cases continues executing the program.
In order to make test abort on errors, option `-fno-sanitize-recover` is needed. [link](https://clang.llvm.org/docs/UndefinedBehaviorSanitizer.html)
Closes https://github.com/facebook/rocksdb/pull/3447

Differential Revision: D6854654

Pulled By: miasantreble

fbshipit-source-id: c48e892b0b38307029df38a67adda0e24257e481
2018-01-31 12:13:00 -08:00
Sagar Vemuri
68829ed89c Revert Snappy version upgrade
Summary:
Java static builds are again broken, this time due Snappy version upgrade introduced in 90c1d81975 (#3331).

This is due to two reasons:
1. The new Snappy packages should now be downloaded from https://github.com/google/snappy/archive/<pkg.tar.gz> instead of https://github.com/google/snappy/releases/download/<pkg.tar.gz> which we are using now.
1. In addition to the the above URL change, Snappy changed its build from using autotools to CMake based : e69d9f8806/README.md (L65-L72)

So more changes are needed if we are going to upgrade to 1.1.7. Hence reverting the version upgrade until we figure them out.
Closes https://github.com/facebook/rocksdb/pull/3363

Differential Revision: D6716983

Pulled By: sagar0

fbshipit-source-id: f451a1bc5eb0bb090f4da07bc3e5ba72cf89aefa
2018-01-12 23:41:43 -08:00
Sagar Vemuri
e446d14093 Fix PowerPC dynamic java build
Summary:
Java build on PPC64le has been broken since a few months, due to #2716. Fixing it with the least amount of changes.
(We should cleanup a little around this code when time permits).

This should fix the build failures seen in http://140.211.168.68:8080/job/Rocksdb/ .
Closes https://github.com/facebook/rocksdb/pull/3359

Differential Revision: D6712938

Pulled By: sagar0

fbshipit-source-id: 3046e8f072180693de2af4762934ec1ace309ca4
2018-01-12 10:57:14 -08:00
Adam Retter
a53c571d2d FreeBSD build support for RocksDB and RocksJava
Summary:
Tested on a clean FreeBSD 11.01 x64.

Closes https://github.com/facebook/rocksdb/pull/1423
Closes https://github.com/facebook/rocksdb/pull/3357

Differential Revision: D6705868

Pulled By: sagar0

fbshipit-source-id: cbccbbdafd4f42922512ca03619a5d5583a425fd
2018-01-11 13:29:55 -08:00
Sagar Vemuri
3e955fad09 Fix zstd/zdict include path for java static build
Summary:
With the ZSTD dictionary generator support added in #3057
`PORTABLE=1 ROCKSDB_NO_FBCODE=1 make rocksdbjavastatic` fails as it can't find zdict.h. Specifically due to:
e3a06f12d2/util/compression.h (L39)
In java static builds zstd code gets directly downloaded from https://github.com/facebook/zstd , and in there zdict.h is under dictBuilder directory. So, I modified libzstd.a target to use `make install` to collect all the header files into a single location and used that as the zstd's include path.
Closes https://github.com/facebook/rocksdb/pull/3260

Differential Revision: D6669850

Pulled By: sagar0

fbshipit-source-id: f8a7562a670e5aed4c4fb6034a921697590d7285
2018-01-05 15:41:46 -08:00