Commit Graph

373 Commits

Author SHA1 Message Date
sherriiiliu f91fd0c944 Extract test cases correctly in run_ci_db_test.ps1 script (#7989)
Summary:
Extract test cases correctly in run_ci_db_test.ps1 script.

There are some new test group that are ended with # comments. Previously in the script when trying to extract test groups and test cases, the regex rule did not apply to this case so the concatenation of some test group and test case failed, see examples in comments.

Also removed useless trailing whitespaces in the script.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7989

Reviewed By: jay-zhuang

Differential Revision: D26615909

Pulled By: ajkr

fbshipit-source-id: 8e68d599994f17d6fefde0daa925c3018179521a
2021-02-23 14:25:42 -08:00
Yanqin Jin 170dffac83 Use actual url instead of tinyurl.com (#7950)
Summary:
Due to offline discussion, we use actual url of the clang-format-diff.py and add a note.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7950

Reviewed By: pdillinger

Differential Revision: D26370822

Pulled By: riversand963

fbshipit-source-id: 7508e23c002d56d5c1649090438ef5f8ff2cdbe7
2021-02-10 10:08:09 -08:00
Yanqin Jin 48669be618 Update clang-format-diff.py path (#7944)
Summary:
Recent Github actions of format checking fail due to invalid location
from where clang-format-diff.py is downloaded. Update the path to point
to a stable, archived location.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7944

Test Plan: manually check the result of Github action.

Reviewed By: ltamasi

Differential Revision: D26345066

Pulled By: riversand963

fbshipit-source-id: 2b1a58c2e59c2f1eb11202d321d2ea002cb0917e
2021-02-09 12:49:38 -08:00
Jay Zhuang a9f8f1fe38 Missed skip_format_check for lite build (#7927)
Summary:
Missed lite build in https://github.com/facebook/rocksdb/issues/7911.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7927

Test Plan: Manual build: https://www.internalfb.com/intern/sandcastle/job/4503600004036336

Reviewed By: ltamasi

Differential Revision: D26226135

Pulled By: jay-zhuang

fbshipit-source-id: e9c51a8f4b6d5469521e0d788ead971a1c1b48ff
2021-02-03 10:39:27 -08:00
Jay Zhuang 87983d442c Skip format checks for sandcastle build (#7911)
Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/7911

Test Plan:
Manually tested most of the builds:
* asan: https://www.internalfb.com/intern/sandcastle/job/9007199627266604
* asan_crash: https://www.internalfb.com/intern/sandcastle/group/nonce/827960152876428/
* asan_crash_with_atomic_flush: https://www.internalfb.com/intern/sandcastle/group/nonce/6901727142256449/
* asan_crash_with_txn https://www.internalfb.com/intern/sandcastle/group/nonce/5745312080630484/
* blackbox_asan_crash https://www.internalfb.com/intern/sandcastle/group/nonce/939185737271884/
* clang_analyze https://www.internalfb.com/intern/sandcastle/job/31525197767943703
* code_cov https://www.internalfb.com/intern/sandcastle/job/376027170
* format_compatible https://www.internalfb.com/intern/sandcastle/group/nonce/6238410205251033/
* no_compression https://www.internalfb.com/intern/sandcastle/group/nonce/5901170225087670/
* regression https://www.internalfb.com/intern/sandcastle/group/nonce/6050737823326726/
* release https://www.internalfb.com/intern/sandcastle/group/nonce/528162753321938/
* stress_crash_with_txn https://www.internalfb.com/intern/sandcastle/group/nonce/4473519221616524/
* tsan_crash_with_atomic_flush https://www.internalfb.com/intern/sandcastle/group/nonce/6950713723315225/
* ubsan_crash https://www.internalfb.com/intern/sandcastle/group/nonce/8824481248569096/
* unit_non_shm https://www.internalfb.com/intern/sandcastle/group/nonce/3373704090128605/
* unity  https://www.internalfb.com/intern/sandcastle/group/nonce/832911990656833/
* whitebox_stress_crash https://www.internalfb.com/intern/sandcastle/group/nonce/3698026167778822/

Reviewed By: pdillinger

Differential Revision: D26165859

Pulled By: jay-zhuang

fbshipit-source-id: d1e7dfd024b82d67b1c291f87216d7fdfc01856a
2021-02-01 09:17:54 -08:00
Jay Zhuang 8944a3bf27 Add support for specifying working directory in lego-determinator (#7901)
Summary:
So we could change the repo or repo structure.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7901

Test Plan:
works with existing job: https://www.internalfb.com/intern/sandcastle/job/13510799254899745/
works with internal repo: https://www.internalfb.com/intern/sandcastle/job/27021598137143731

Reviewed By: pdillinger

Differential Revision: D26108239

Pulled By: jay-zhuang

fbshipit-source-id: ac24559653d9abc012068e8accd7606505bd5b88
2021-01-27 15:24:11 -08:00
Peter Dillinger 4d897e51df Migrate away from Travis+Linux+amd64 (#7791)
Summary:
This disables Linux/amd64 builds in Travis for PRs, and adds a
gcc-10+c++20 build in CircleCI, which should fill out sufficient coverage
vs. what we had in Travis

Fixed a use of std::is_pod, which is deprecated in c++20

Fixed ++ on a volatile in db_repl_stress.cc, with bigger refactoring.
Although ++ on this volatile was probably ok with one thread writer and
one thread reader, the code was still overly complex. There was a
deadcode check for error
`if (replThread.no_read < dataPump.no_records)` which can be proven
never to happen based on the structure of the code. It infinite loops
instead for the case intended to be checked. I just simplified the code
for what should be the same checking power.

Also most configurations seem to be using make parallelism = 2 * vcores,
so fixing / using that.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7791

Test Plan:
CI
and `while ./db_repl_stress; do echo again; done` for a while

Reviewed By: siying

Differential Revision: D25669834

Pulled By: pdillinger

fbshipit-source-id: b2c688053d0b1d52c989903449d3cd27a04130d6
2020-12-22 00:20:57 -08:00
Adam Retter 303d283420 RocksJava static lib dependencies should support MacOS 10.12+ (#7683)
Summary:
Expands on https://github.com/facebook/rocksdb/pull/7016 so that when `PORTABLE=1` is set the dependencies for RocksJava static target will also be built with backwards compatibility for MacOS as far back as 10.12 (i.e. 2016).

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7683

Reviewed By: ajkr

Differential Revision: D25034164

Pulled By: pdillinger

fbshipit-source-id: dc9e51828869ed9ec336a8a86683e4d0bfe04f27
2020-11-17 15:34:05 -08:00
Xie Yanbo c9c9709a1a Update clang-format-diff.py (#7609)
Summary:
`llvm-mirror/clang` is archived. Get the `clang-format-diff.py` file from the active source.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7609

Reviewed By: ajkr

Differential Revision: D24711608

Pulled By: pdillinger

fbshipit-source-id: b115d8765ff23fbb8190290a170de21565daba84
2020-11-04 16:09:01 -08:00
Peter Dillinger 0e2e67562f Give instructions instead of broken 2to3 for clang-format-diff.py (#7603)
Summary:
My previous change to use lib2to3 to migrate clang-format-diff.py
for Python 2 only works if there's nothing to reformat. Instead, give
instructions to download to REPO_ROOT.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7603

Test Plan: Try the instructions on a fresh CentOS 8 devserver

Reviewed By: riversand963

Differential Revision: D24569608

Pulled By: pdillinger

fbshipit-source-id: 1410ba163e016b226e883dec93fae3df9ed0eab2
2020-10-27 11:58:17 -07:00
Peter Dillinger c4d8838a2b New bit manipulation functions and 128-bit value library (#7338)
Summary:
These new functions and 128-bit value bit operations are
expected to be used in a forthcoming Bloom filter alternative.

No functional changes to production code, just new code only called by
unit tests, cosmetic changes to existing headers, and fix an existing
function for a yet-unused template instantiation (BitsSetToOne on
something signed and smaller than 32 bits).

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7338

Test Plan:
Unit tests included. Works with and without
TEST_UINT128_COMPAT=1 to check compatibility with and without
__uint128_t. Also added that parameter to the CircleCI build
build-linux-shared_lib-alt_namespace-status_checked.

Reviewed By: jay-zhuang

Differential Revision: D23494945

Pulled By: pdillinger

fbshipit-source-id: 5c0dc419100d9df5d4d9abb153b2855d5aea39e8
2020-09-03 09:32:59 -07:00
Jonny Heggheim 1e59800718 Use standard variables for installing/uninstalling with make (#7187)
Summary:
Fixes https://github.com/facebook/rocksdb/issues/7185.

Standard for GNU and FreeBSD. See
https://www.freebsd.org/doc/en/books/porters-handbook/porting-prefix.html
https://www.gnu.org/prep/standards/html_node/DESTDIR.html#DESTDIR
https://www.gnu.org/prep/standards/html_node/Directory-Variables.html

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7187

Reviewed By: cheng-chang

Differential Revision: D23333233

Pulled By: ajkr

fbshipit-source-id: f704d23852c4516cf5fa00df73ff57687b2ddffb
2020-08-28 14:47:31 -07:00
Akanksha Mahajan ed7ea43dd9 Fix for Regression failure (#7300)
Summary:
RocksDb regression commands are exiting with error
/usr/bin/ar: creating
librocksdb.a
/usr/bin/ld: ./cache/cache.o: relocation R_X86_64_32 against `.rodata.str1.1' can not be used when making a shared object; recompile with -fPIC

Bug: It tries to link the static code into a shared lib.
Fix: Added make clean before building shared_lib

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7300

Test Plan:
make clean
           make -j$(nproc) static_lib
           make -j$(nproc) shared_lib

Reviewed By: pdillinger

Differential Revision: D23276842

Pulled By: akankshamahajan15

fbshipit-source-id: c2e69fa505893ad414786794fc486f3f22f059d5
2020-08-24 09:11:27 -07:00
sdong 4b0a509a91 Still use platform007 for gcc (#7253)
Summary:
We see some hosts failed to build platform009 with gcc. Revert the default to be platform007 if USE_CLANG is not specified.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7253

Test Plan: Build with both of USE_CLANG=1 set and not set and observe it builds successfully, and see the tool chain used.

Reviewed By: jay-zhuang

Differential Revision: D23110550

fbshipit-source-id: 25cb47923f7174b24debdad0cc8d90b07c4d5d09
2020-08-13 14:49:34 -07:00
sdong e7358da9a2 Upgrade tool chain (#7251)
Summary:
Upgrade tool chain to the latest. It is done mostly manually as build_tools/build_detect_platform fails to update many of them.

Try to fix a new clang analyze warning with the new tool chain.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7251

Test Plan: "make all", "USE_CLANG=1 make all"

Reviewed By: riversand963

Differential Revision: D23091090

fbshipit-source-id: 732e5a30137837431438f85f36296406b641f975
2020-08-12 19:30:00 -07:00
Andrew Kryczka c0c33a4854 Makefile support for link-time optimization (#7181)
Summary:
`USE_LTO=1` in `make` commands now enables LTO. The archiver (`ar`) needed
to change in this PR to use a wrapper that enables the LTO plugin.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7181

Test Plan:
build a few ways
```
$ make clean && USE_LTO=1 make -j48 db_bench
$ make clean && USE_CLANG=1 USE_LTO=1 make -j48 db_bench
$ make clean && ROCKSDB_NO_FBCODE=1 USE_LTO=1 make -j48 db_bench
```

Reviewed By: cheng-chang

Differential Revision: D22784994

Pulled By: ajkr

fbshipit-source-id: 9c45333bd49bf4615aa04c85b7c6fd3925421152
2020-07-28 13:10:44 -07:00
Yanqin Jin 1adfd729e9 Enable a few jobs in determinator (#7174)
Summary:
https://github.com/facebook/rocksdb/issues/7170 added a few job specs. This PR enables rocksdb-lego-determinator to support them.

Test plan (dev server)
```
$build_tools/rocksdb-lego-determinator blackbox_stress_crash
$build_tools/rocksdb-lego-determinator whitebox_stress_crash
$build_tools/rocksdb-lego-determinator blackbox_asan_crash
$build_tools/rocksdb-lego-determinator whitebox_asan_crash
$build_tools/rocksdb-lego-determinator blackbox_ubsan_crash
$build_tools/rocksdb-lego-determinator whitebox_ubsan_crash
$build_tools/rocksdb-lego-determinator blackbox_tsan_crash
$build_tools/rocksdb-lego-determinator whitebox_tsan_crash
```

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7174

Reviewed By: siying

Differential Revision: D22741153

Pulled By: riversand963

fbshipit-source-id: 39b7d948f04a5b109f009b5499c1dbdc83a13c6e
2020-07-24 17:29:36 -07:00
Yanqin Jin 954ee56571 Add job specs for blackbox/whitebox stress tests (#7170)
Summary:
As title.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7170

Test Plan: Manually invoke the commands.

Reviewed By: siying

Differential Revision: D22732256

Pulled By: riversand963

fbshipit-source-id: d331e5ee84658ac079814292ff1a1eacfd14bfdf
2020-07-24 13:42:53 -07:00
mrambacher 80f71b5863 Use Libraries in the RocksDB Makefile Build (#6660)
Summary:
Change the linking of tests/tools to be against a library rather than a list of objects.  This change substantially reduces the size of the objects produced.

peterd clean repo size: 264M
Before this change, with make all: 40G
After this change, with make all: 28G
With make LIB_MODE=shared all: 7.0G

The list of TESTS was changed from being hard-coded to generated from the test sources variable.  Note that there are some test sources that are not built as tests (though the set of tests is identical to the previous version).

Added OBJ_DIR option to Makefile to allow objects to be placed in an alternative location.  By default, OBJ_DIR is the same as before ("./").

This change is a precursor to being able to build/run the tests/tools linked against static libraries.  Additionally, it should be possible to clean up and merge some of the rules for building tests and the like if so desired.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6660

Reviewed By: riversand963

Differential Revision: D22244463

Pulled By: pdillinger

fbshipit-source-id: db9c6341d81ed62c2270374f4ede02fb9604c754
2020-06-30 19:33:31 -07:00
Adam Retter df5fbe6408 Portable backward compatibility with MacOS 10.12+ (#7016)
Summary:
When `PORTABLE=1` is set, RocksDB will now be built with backwards compatibility for MacOS as far back as 10.12 (i.e. 2016).
Pull Request resolved: https://github.com/facebook/rocksdb/pull/7016

Reviewed By: ajkr

Differential Revision: D22211312

Pulled By: pdillinger

fbshipit-source-id: 7b0858d9b55d6265d3ea27bf5ea1673639b6538c
2020-06-25 13:57:00 -07:00
Andrew Kryczka 312f23c92d build fixes for GNU/kFreeBSD (#6992)
Summary:
Upstream https://salsa.debian.org/mariadb-team/mariadb-10.4/-/blob/master/debian/patches/rocksdb-kfreebsd.patch
by jrtc27.

Fixes https://github.com/facebook/rocksdb/issues/5223.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6992

Reviewed By: zhichao-cao

Differential Revision: D22084150

Pulled By: ajkr

fbshipit-source-id: 1822311ba16f112a15065b2180ce89d36af9cafc
2020-06-18 09:51:28 -07:00
Peter Dillinger 0c56fc4d66 Allow missing "unversioned" python, as in CentOS 8 (#6883)
Summary:
RocksDB Makefile was assuming existence of 'python' command,
which is not present in CentOS 8. We avoid using 'python' if 'python3' is available.

Also added fancy logic to format-diff.sh to make clang-format-diff.py for Python2 work even with Python3 only (as some CentOS 8 FB machines come equipped)

Also, now use just 'python3' for PYTHON if not found so that an informative
"command not found" error will result rather than something weird.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6883

Test Plan: manually tried some variants, 'make check' on a fresh CentOS 8 machine without 'python' executable or Python2 but with clang-format-diff.py for Python2.

Reviewed By: gg814

Differential Revision: D21767029

Pulled By: pdillinger

fbshipit-source-id: 54761b376b140a3922407bdc462f3572f461d0e9
2020-05-29 11:29:23 -07:00
Peter Dillinger c7aedf1b48 Clean up some code related to file checksums (#6861)
Summary:
* Add missing unit test for schema stability of FileChecksumGenCrc32c
  (previously was only comparing to itself)
* A lot of clarifying comments
* Add some assertions for preconditions
* Rename WritableFileWriter::CalculateFileChecksum -> UpdateFileChecksum
* Simplify FileChecksumGenCrc32c with shared functions
* Implement EndianSwapValue to replace unused EndianTransform

And incidentally since I had trouble with 'make check-format' GitHub action disagreeing with local run,
* Output full diagnostic information when 'make check-format' fails in CI
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6861

Test Plan: new unit test passes before & after other changes

Reviewed By: zhichao-cao

Differential Revision: D21667115

Pulled By: pdillinger

fbshipit-source-id: 6a99970f87605aa024fa540c78cd519ff322c3e6
2020-05-21 08:12:51 -07:00
Yanqin Jin 6acbbbf9fc Add Github Action for some basic sanity test of PR (#6761)
Summary:
Add Github Action to perform some basic sanity check for PR, inclding the
following.
1) Buck TARGETS file.
On the one hand, The TARGETS file is used for internal buck, and we do not
manually update it. On the other hand, we need to run the buckifier scripts to
update TARGETS whenever new files are added, etc. With this Github Action, we
make sure that every PR does not forget this step. The GH Action uses
a Makefile target called check-buck-targets. Users can manually run `make
check-buck-targets` on local machine.

2) Code format
We use clang-format-diff.py to format our code. The GH Action in this PR makes
sure this step is not skipped. The checking script build_tools/format-diff.sh assumes that `clang-format-diff.py` is executable.
On host running GH Action, it is difficult to download `clang-format-diff.py` and make it
executable. Therefore, we modified build_tools/format-diff.sh to handle the case in which there is a non-executable clang-format-diff.py file in the top-level rocksdb repo directory.

Test Plan (Github and devserver):
Watch for Github Action result in the `Checks` tab.
On dev server
```
make check-format
make check-buck-targets
make check
```
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6761

Test Plan: Watch for Github Action result in the `Checks` tab.

Reviewed By: pdillinger

Differential Revision: D21260209

Pulled By: riversand963

fbshipit-source-id: c646e2f37c6faf9f0614b68aa0efc818cff96787
2020-04-30 19:22:45 -07:00
Peter Dillinger 28fe8e4620 Fix bug in format-diff.sh (#6772)
Summary:
Nasty bug in which more/different changes would be applied than
those shown to user
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6772

Test Plan: manual

Reviewed By: siying

Differential Revision: D21304604

Pulled By: pdillinger

fbshipit-source-id: 7e20740e513c9c300d1522511290a025b35abedc
2020-04-29 13:45:54 -07:00
Peter Dillinger 31da5e34c1 C++20 compatibility (#6697)
Summary:
Based on https://github.com/facebook/rocksdb/issues/6648 (CLA Signed), but heavily modified / extended:

* Implicit capture of this via [=] deprecated in C++20, and [=,this] not standard before C++20 -> now using explicit capture lists
* Implicit copy operator deprecated in gcc 9 -> add explicit '= default' definition
* std::random_shuffle deprecated in C++17 and removed in C++20 -> migrated to a replacement in RocksDB random.h API
* Add the ability to build with different std version though -DCMAKE_CXX_STANDARD=11/14/17/20 on the cmake command line
* Minimal rebuild flag of MSVC is deprecated and is forbidden with /std:c++latest (C++20)
* Added MSVC 2019 C++11 & MSVC 2019 C++20 in AppVeyor
* Added GCC 9 C++11 & GCC9 C++20 in Travis
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6697

Test Plan: make check and CI

Reviewed By: cheng-chang

Differential Revision: D21020318

Pulled By: pdillinger

fbshipit-source-id: 12311be5dbd8675a0e2c817f7ec50fa11c18ab91
2020-04-20 13:24:25 -07:00
sdong 165560fb32 Two Improvements to tools/check_format_compatible.sh (#6702)
Summary:
Improve it in two ways:
1. tools/check_format_compatible.sh is not friendly to run outside FB environment. remove the hard-coded http proxy setting. Instead, move it to Legocastle configuration
2. Always disable warning as error, so that older build is more likely to pass.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6702

Test Plan: Run the test and make sure at least it doesn't break.

Reviewed By: riversand963

Differential Revision: D21033329

fbshipit-source-id: 88b4ec1ec49547b772790050a165466bdc4a62a0
2020-04-15 11:28:11 -07:00
anand76 5c19a441c4 Fault injection in db_stress (#6538)
Summary:
This PR implements a fault injection mechanism for injecting errors in reads in db_stress. The FaultInjectionTestFS is used for this purpose. A thread local structure is used to track the errors, so that each db_stress thread can independently enable/disable error injection and verify observed errors against expected errors. This is initially enabled only for Get and MultiGet, but can be extended to iterator as well once its proven stable.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6538

Test Plan:
crash_test
make check

Reviewed By: riversand963

Differential Revision: D20714347

Pulled By: anand1976

fbshipit-source-id: d7598321d4a2d72bda0ced57411a337a91d87dc7
2020-04-10 17:21:26 -07:00
Luca Giacchino 66a95f0fac Provide an allocator for new memory type to be used with RocksDB block cache (#6214)
Summary:
New memory technologies are being developed by various hardware vendors (Intel DCPMM is one such technology currently available). These new memory types require different libraries for allocation and management (such as PMDK and memkind). The high capacities available make it possible to provision large caches (up to several TBs in size), beyond what is achievable with DRAM.
The new allocator provided in this PR uses the memkind library to allocate memory on different media.

**Performance**

We tested the new allocator using db_bench.
- For each test, we vary the size of the block cache (relative to the size of the uncompressed data in the database).
- The database is filled sequentially. Throughput is then measured with a readrandom benchmark.
- We use a uniform distribution as a worst-case scenario.

The plot shows throughput (ops/s) relative to a configuration with no block cache and default allocator.
For all tests, p99 latency is below 500 us.

![image](https://user-images.githubusercontent.com/26400080/71108594-42479100-2178-11ea-8231-8a775bbc92db.png)

**Changes**

- Add MemkindKmemAllocator
- Add --use_cache_memkind_kmem_allocator db_bench option (to create an LRU block cache with the new allocator)
- Add detection of memkind library with KMEM DAX support
- Add test for MemkindKmemAllocator

**Minimum Requirements**

- kernel 5.3.12
- ndctl v67 - https://github.com/pmem/ndctl
- memkind v1.10.0 - https://github.com/memkind/memkind

**Memory Configuration**

The allocator uses the MEMKIND_DAX_KMEM memory kind. Follow the instructions on[ memkind’s GitHub page](https://github.com/memkind/memkind) to set up NVDIMM memory accordingly.

Note on memory allocation with NVDIMM memory exposed as system memory.
- The MemkindKmemAllocator will only allocate from NVDIMM memory (using memkind_malloc with MEMKIND_DAX_KMEM kind).
- The default allocator is not restricted to RAM by default. Based on NUMA node latency, the kernel should allocate from local RAM preferentially, but it’s a kernel decision. numactl --preferred/--membind can be used to allocate preferentially/exclusively from the local RAM node.

**Usage**

When creating an LRU cache, pass a MemkindKmemAllocator object as argument.
For example (replace capacity with the desired value in bytes):

```
#include "rocksdb/cache.h"
#include "memory/memkind_kmem_allocator.h"

NewLRUCache(
    capacity /*size_t*/,
    6 /*cache_numshardbits*/,
    false /*strict_capacity_limit*/,
    false /*cache_high_pri_pool_ratio*/,
    std::make_shared<MemkindKmemAllocator>());
```

Refer to [RocksDB’s block cache documentation](https://github.com/facebook/rocksdb/wiki/Block-Cache) to assign the LRU cache as block cache for a database.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6214

Reviewed By: cheng-chang

Differential Revision: D19292435

fbshipit-source-id: 7202f47b769e7722b539c86c2ffd669f64d7b4e1
2020-04-09 20:47:23 -07:00
Istvan a56439bb7f Adding new build script for CentOS 7 (#6617)
Summary:
Updating build script for CentOS 7
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6617

Reviewed By: riversand963

Differential Revision: D20879268

Pulled By: anand1976

fbshipit-source-id: 414b99e39cd77ba31373ff7aff50121d78a93d1c
2020-04-06 16:20:27 -07:00
Adam Retter 0772768d07 Force Java version on Travis CI (#6512)
Summary:
In the `.travis.yml` file the `jdk: openjdk7` element is ignored when `language: cpp`. So whatever version of the JDK that was installed in the Travis container was used - typically JDK 11.

To ensure our RocksJava builds are working, we now instead install and use OpenJDK 8. Ideally we would use OpenJDK 7, as RocksJava supports Java 7, but many of the newer Travis containers don't support Java 7, so Java 8 is the next best thing.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6512

Differential Revision: D20388296

Pulled By: pdillinger

fbshipit-source-id: 8bbe6b59b70cfab7fe81ff63867d907fefdd2df1
2020-03-12 12:24:51 -07:00
Fabrice Fontaine 8bbd76edbf Check for sys/auxv.h (#6359)
Summary:
Check for sys/auxv.h and getauxval before using them as they are not
always available (for example on uclibc)

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6359

Differential Revision: D20239797

fbshipit-source-id: 175a098094d81545628c2372e7c388e70a32fd48
2020-03-03 18:09:59 -08:00
Michael R. Crusoe 051696bf98 fix some spelling typos (#6464)
Summary:
Found from Debian's "Lintian" program
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6464

Differential Revision: D20162862

Pulled By: zhichao-cao

fbshipit-source-id: 06941ee2437b038b2b8045becbe9d2c6fbff3e12
2020-02-28 14:14:03 -08:00
sdong 6e97d4de00 By default turn IO Uring off. (#6405)
Summary:
We realized bugs related to IO Uring. Turn it off by default.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6405

Test Plan: Manually run build_tools/build_detect_platform and observe outputs.

Differential Revision: D19862792

fbshipit-source-id: 5d5e8e2762997b72a145ae59389ef3d7e4ccd060
2020-02-12 18:01:49 -08:00
Peter Dillinger 90c71aa5d9 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
2020-01-30 11:02:08 -08:00
Peter Dillinger 23dcf2759d Upload DB dir for all crash tests (#6344)
Summary:
Difficult to root cause crash test failures without archiving
db dir. Now all crash test configurations should save the db dir.

Also exit with error code on bad command.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6344

Test Plan:
Hmm, how about this:

    for TARGET in stress_crash asan_crash ubsan_crash tsan_crash; do EMAIL=email ONCALL=oncall TRIGGER=all SUBSCRIBER=sub build_tools/rocksdb-lego-determinator $TARGET > tmp && node -c tmp && grep -q Upload tmp || echo Bad; done

Differential Revision: D19625605

Pulled By: pdillinger

fbshipit-source-id: cb84aa93ee80b4534f4c61b90f0e0f99a41155d5
2020-01-29 15:59:07 -08:00
sdong 814d4e7ce0 Improve instructions to install formatter (#6162)
Summary:
While the instruction of installing "make format" dependencies works on some platforms, it is hard to use for some others. Improve it a little bit.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6162

Test Plan: Run "make format" on an envrionment missing the dependencies and see the instructions printed out

Differential Revision: D18970773

fbshipit-source-id: fd21b31053407cc171a6675f781a556a1c3e8945
2019-12-12 14:04:01 -08:00
Maysam Yabandeh 1ad6fa9cc7 Enable txn in crash tests (#6155)
Summary:
Start daily crash tests with use_txn flag.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6155

Differential Revision: D18943630

Pulled By: maysamyabandeh

fbshipit-source-id: eea99a6ffd5f57fb9651f6ca7dab8fbf70379c87
2019-12-11 16:01:55 -08:00
sdong e3a82bb934 PosixRandomAccessFile::MultiRead() to use I/O uring if supported (#5881)
Summary:
Right now, PosixRandomAccessFile::MultiRead() executes read requests in parallel. In this PR, it leverages I/O Uring library to run it in parallel, even when page cache is enabled. This function will fall back if the kernel version doesn't support it.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5881

Test Plan: Run the unit test on a kernel version supporting it and make sure all tests pass, and run a unit test on kernel version supporting it and see it pass. Before merging, will also run stress test and see it passes.

Differential Revision: D17742266

fbshipit-source-id: e05699c925ac04fdb42379456a4e23e4ebcb803a
2019-12-07 20:55:52 -08:00
Jim Meyering cdc431ec81 build_tools/precommit_checker.py: don't hard-code a platform-afflicted python path (#6124)
Summary:
Use `#!/usr/bin/env python2.7` instead.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6124

Test Plan: `J=8 make commit_prereq`

Differential Revision: D18834668

Pulled By: ltamasi

fbshipit-source-id: cec40266cd5bcae8bf6cbe5a564ae78540deccc4
2019-12-05 11:49:17 -08:00
Peter Dillinger f059c7d9b9 New Bloom filter implementation for full and partitioned filters (#6007)
Summary:
Adds an improved, replacement Bloom filter implementation (FastLocalBloom) for full and partitioned filters in the block-based table. This replacement is faster and more accurate, especially for high bits per key or millions of keys in a single filter.

Speed

The improved speed, at least on recent x86_64, comes from
* Using fastrange instead of modulo (%)
* Using our new hash function (XXH3 preview, added in a previous commit), which is much faster for large keys and only *slightly* slower on keys around 12 bytes if hashing the same size many thousands of times in a row.
* Optimizing the Bloom filter queries with AVX2 SIMD operations. (Added AVX2 to the USE_SSE=1 build.) Careful design was required to support (a) SIMD-optimized queries, (b) compatible non-SIMD code that's simple and efficient, (c) flexible choice of number of probes, and (d) essentially maximized accuracy for a cache-local Bloom filter. Probes are made eight at a time, so any number of probes up to 8 is the same speed, then up to 16, etc.
* Prefetching cache lines when building the filter. Although this optimization could be applied to the old structure as well, it seems to balance out the small added cost of accumulating 64 bit hashes for adding to the filter rather than 32 bit hashes.

Here's nominal speed data from filter_bench (200MB in filters, about 10k keys each, 10 bits filter data / key, 6 probes, avg key size 24 bytes, includes hashing time) on Skylake DE (relatively low clock speed):

$ ./filter_bench -quick -impl=2 -net_includes_hashing # New Bloom filter
Build avg ns/key: 47.7135
Mixed inside/outside queries...
  Single filter net ns/op: 26.2825
  Random filter net ns/op: 150.459
    Average FP rate %: 0.954651
$ ./filter_bench -quick -impl=0 -net_includes_hashing # Old Bloom filter
Build avg ns/key: 47.2245
Mixed inside/outside queries...
  Single filter net ns/op: 63.2978
  Random filter net ns/op: 188.038
    Average FP rate %: 1.13823

Similar build time but dramatically faster query times on hot data (63 ns to 26 ns), and somewhat faster on stale data (188 ns to 150 ns). Performance differences on batched and skewed query loads are between these extremes as expected.

The only other interesting thing about speed is "inside" (query key was added to filter) vs. "outside" (query key was not added to filter) query times. The non-SIMD implementations are substantially slower when most queries are "outside" vs. "inside". This goes against what one might expect or would have observed years ago, as "outside" queries only need about two probes on average, due to short-circuiting, while "inside" always have num_probes (say 6). The problem is probably the nastily unpredictable branch. The SIMD implementation has few branches (very predictable) and has pretty consistent running time regardless of query outcome.

Accuracy

The generally improved accuracy (re: Issue https://github.com/facebook/rocksdb/issues/5857) comes from a better design for probing indices
within a cache line (re: Issue https://github.com/facebook/rocksdb/issues/4120) and improved accuracy for millions of keys in a single filter from using a 64-bit hash function (XXH3p). Design details in code comments.

Accuracy data (generalizes, except old impl gets worse with millions of keys):
Memory bits per key: FP rate percent old impl -> FP rate percent new impl
6: 5.70953 -> 5.69888
8: 2.45766 -> 2.29709
10: 1.13977 -> 0.959254
12: 0.662498 -> 0.411593
16: 0.353023 -> 0.0873754
24: 0.261552 -> 0.0060971
50: 0.225453 -> ~0.00003 (less than 1 in a million queries are FP)

Fixes https://github.com/facebook/rocksdb/issues/5857
Fixes https://github.com/facebook/rocksdb/issues/4120

Unlike the old implementation, this implementation has a fixed cache line size (64 bytes). At 10 bits per key, the accuracy of this new implementation is very close to the old implementation with 128-byte cache line size. If there's sufficient demand, this implementation could be generalized.

Compatibility

Although old releases would see the new structure as corrupt filter data and read the table as if there's no filter, we've decided only to enable the new Bloom filter with new format_version=5. This provides a smooth path for automatic adoption over time, with an option for early opt-in.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6007

Test Plan: filter_bench has been used thoroughly to validate speed, accuracy, and correctness. Unit tests have been carefully updated to exercise new and old implementations, as well as the logic to select an implementation based on context (format_version).

Differential Revision: D18294749

Pulled By: pdillinger

fbshipit-source-id: d44c9db3696e4d0a17caaec47075b7755c262c5f
2019-11-13 16:44:01 -08:00
Peter Dillinger ca7ccbe2ea Misc hashing updates / upgrades (#5909)
Summary:
- Updated our included xxhash implementation to version 0.7.2 (== the latest dev version as of 2019-10-09).
- Using XXH_NAMESPACE (like other fb projects) to avoid potential name collisions.
- Added fastrange64, and unit tests for it and fastrange32. These are faster alternatives to hash % range.
- Use preview version of XXH3 instead of MurmurHash64A for NPHash64
-- Had to update cache_test to increase probability of passing for any given hash function.
- Use fastrange64 instead of % with uses of NPHash64
-- Had to fix WritePreparedTransactionTest.CommitOfDelayedPrepared to avoid deadlock apparently caused by new hash collision.
- Set default seed for NPHash64 because specifying a seed rarely makes sense for it.
- Removed unnecessary include xxhash.h in a popular .h file
- Rename preview version of XXH3 to XXH3p for clarity and to ease backward compatibility in case final version of XXH3 is integrated.

Relying on existing unit tests for NPHash64-related changes. Each new implementation of fastrange64 passed unit tests when manipulating my local build to select it. I haven't done any integration performance tests, but I consider the improved performance of the pieces being swapped in to be well established.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5909

Differential Revision: D18125196

Pulled By: pdillinger

fbshipit-source-id: f6bf83d49d20cbb2549926adf454fd035f0ecc0d
2019-10-24 17:16:46 -07:00
Vijay Nadimpalli 5677f4f775 Using clang for internal ubsan tests (#5952)
Summary:
Using clang for internal ubsan tests.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5952

Differential Revision: D18048810

Pulled By: vjnadimpalli

fbshipit-source-id: ae55677a1928397b067e972d0ecb4ac1b7e2c8dc
2019-10-21 19:37:00 -07:00
Vijay Nadimpalli 2ce6aa5f39 Making platform 007 (gcc 7) default in build_detect_platform.sh (#5947)
Summary:
Making platform 007 (gcc 7) default in build_detect_platform.sh.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5947

Differential Revision: D18038837

Pulled By: vjnadimpalli

fbshipit-source-id: 9ac2ddaa93bf328a416faec028970e039886378e
2019-10-21 12:09:29 -07:00
sdong 1a21afa789 Fix some dependency paths (#5946)
Summary:
Some dependency path is not correct so that ASAN cannot run with CLANG. Fix it.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5946

Test Plan: Run ASAN with CLANG

Differential Revision: D18040933

fbshipit-source-id: 1d82be9d350485cf1df1c792dad765188958641f
2019-10-21 10:41:47 -07:00
katherine 5b123813f8 Remove deprecated RocksDBCommonHelper and cont_integration.sh (#5889)
Summary:
As titled. RocksDBCommonHelper contains references to legacy APIs.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5889

Differential Revision: D17783179

fbshipit-source-id: dcde82a73a311bfa3300ad69189b3a32727134d1
2019-10-09 07:40:35 -07:00
Peter Dillinger 42f898bf83 Fix format-diff.sh detecting changes vs. upstream (#5831)
Summary:
format-diff.sh, a.k.a. 'make format', would use 'master'
to decide which commits are probably unpublished. Much better to use
facebook remote master since local master may not be caught up and may
have its own unpublished commits. Script now tries to compare against
facebook remote master branch (branch pointer is updated with any fetch
or pull), because those differences are what would be considered the
differences for a pull request.

Also, script would compare against *parent* of merge-base with that
reference point, which is just wrong since that includes the last
published commit.

In case of problems, you can now customize the reference point, by
setting the FORMAT_UPSTREAM variable.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5831

Test Plan: manual

Differential Revision: D17528462

Pulled By: pdillinger

fbshipit-source-id: 50fdb8795d683bf3c14d449669c1a5299e0dfa8b
2019-09-23 09:07:00 -07:00
sdong f5a59c42c5 Update dependencies (#5777)
Summary:
Update version of dependencies.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5777

Test Plan: make release

Differential Revision: D17269421

fbshipit-source-id: e76dbe5389e1d7f811739d3bc1e404b482dfce34
2019-09-16 20:44:47 -07:00
Peter Dillinger 6a171724b7 Clean up + fix build scripts re: USE_SSE= and PORTABLE= (#5800)
Summary:
In preparing to utilize a new Intel instruction extension, I
noticed problems with the existing build script in regard to the
existing utilized extensions, either with USE_SSE or PORTABLE flags.

* PORTABLE=0 was interpreted the same as PORTABLE=1. Now empty and 0
mean the same. (I guess you were not supposed to set PORTABLE= if you
wanted non-portable--except that...)
* The Facebook build script extensions would set PORTABLE=1 even if
it's already set in a make var or environment. Now it does not override
a non-empty setting, so use PORTABLE=0 for fully optimized build,
overriding Facebook environment default.
* Put in an explanation of the USE_SSE flag where it's used by
build_detect_platform, and cleaned up some confusing/redundant
associated logic.
* If USE_SSE was set and expected intrinsics were not available,
build_detect_platform would exit early but build would proceed with
broken, incomplete configuration. Now warning is gracefully recovered.
* If USE_SSE was set and expected intrinsics were not available,
build would still try to use flags like -msse4.2 etc. which could lead
to unexpected compilation failure or binary incompatibility. Now those
flags are not used if the warning is issued.

This should not break or change existing, valid build scripts.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5800

Test Plan: manual case testing

Differential Revision: D17369543

Pulled By: pdillinger

fbshipit-source-id: 4ee244911680ae71144d272c40aceea548e3ce88
2019-09-13 11:07:13 -07:00
Aaryaman Sagar 38b03c840e Port folly/synchronization/DistributedMutex to rocksdb (#5642)
Summary:
This ports `folly::DistributedMutex` into RocksDB. The PR includes everything else needed to compile and use DistributedMutex as a component within folly. Most files are unchanged except for some portability stuff and includes.

For now, I've put this under `rocksdb/third-party`, but if there is a better folder to put this under, let me know. I also am not sure how or where to put unit tests for third-party stuff like this. It seems like gtest is included already, but I need to link with it from another third-party folder.

This also includes some other common components from folly

- folly/Optional
- folly/ScopeGuard (In particular `SCOPE_EXIT`)
- folly/synchronization/ParkingLot (A portable futex-like interface)
- folly/synchronization/AtomicNotification (The standard C++ interface for futexes)
- folly/Indestructible (For singletons that don't get destroyed without allocations)
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5642

Differential Revision: D16544439

fbshipit-source-id: 179b98b5dcddc3075926d31a30f92fd064245731
2019-08-07 14:34:19 -07:00