mirror of
https://github.com/scylladb/scylladb.git
synced 2026-05-12 19:02:12 +00:00
1e1e4f4934
* abseil 9c6a50f...f70eada (122): > Fix over-aligned layout test with older gcc compilers (#1049) > Export of internal Abseil changes > Initial support for Haiku (#1045) > Export of internal Abseil changes > Export of internal Abseil changes > Remove bazelbuild/rules_cc dependency (#1038) > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Use FreeBSD macro definition for ElfW macro for compatibility. (#1037) > Export of internal Abseil changes > Fix hashing on big endian platforms (#1028) > Fix typedef of sig_t on AIX (#1030) > Export of internal Abseil changes > Fixed typo `constuct` to `construct` in 3 places. (#1022) > Export of internal Abseil changes > Export of internal Abseil changes > Initial support for AIX (#1021) > Export of internal Abseil changes > Update from_chars documentation with regard to whitespace (#1020) > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Include immintrin.h instead of wmmintrin.h (#1015) > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Add -Wno-unknown-warning-option to ABSL_LLVM_FLAGS to disable warnings on unknown warning flags. (#1008) > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Add missing ABSL_DLL for a few functions (#1002) > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Simplifies the construction of the value returned by GenerateRealFromBits() (#994) > CMake: option to use cxx_std_11 (minimum) that propagates. (#986) > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Fix Bazel build on aarch64 (#984) > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > CMake: add option to use Google Test already installed on system (#969) > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Use CMAKE_INSTALL_FULL_{LIBDIR,INCLUDEDIR}. (#963) > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Uses alignas for portability in dynamic_annotations.h (#947) > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Call FailureSignalHandlerOptions.writenfn with nullptr at the end (#938) > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Add missing `add_subdirectory()` call for "cleanup" (#925) > Allowing to change the MSVC runtime (#921) > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Fix C++/CLI build problem (#916) > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Add support for more Linux architectures (#904) > Export of internal Abseil changes > Export of internal Abseil changes > Add support for m68k (#900) > Add support for sparc and sparc64 (#899) > Fix uc_mcontext register access on 32-bit PowerPC (#898) > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes > Export of internal Abseil changes
Scylla
What is Scylla?
Scylla is the real-time big data database that is API-compatible with Apache Cassandra and Amazon DynamoDB. Scylla embraces a shared-nothing approach that increases throughput and storage capacity to realize order-of-magnitude performance improvements and reduce hardware costs.
For more information, please see the ScyllaDB web site.
Build Prerequisites
Scylla is fairly fussy about its build environment, requiring very recent versions of the C++20 compiler and of many libraries to build. The document HACKING.md includes detailed information on building and developing Scylla, but to get Scylla building quickly on (almost) any build machine, Scylla offers a frozen toolchain, This is a pre-configured Docker image which includes recent versions of all the required compilers, libraries and build tools. Using the frozen toolchain allows you to avoid changing anything in your build machine to meet Scylla's requirements - you just need to meet the frozen toolchain's prerequisites (mostly, Docker or Podman being available).
Building Scylla
Building Scylla with the frozen toolchain dbuild is as easy as:
$ git submodule update --init --force --recursive
$ ./tools/toolchain/dbuild ./configure.py
$ ./tools/toolchain/dbuild ninja build/release/scylla
For further information, please see:
- Developer documentation for more information on building Scylla.
- Build documentation on how to build Scylla binaries, tests, and packages.
- Docker image build documentation for information on how to build Docker images.
Running Scylla
To start Scylla server, run:
$ ./tools/toolchain/dbuild ./build/release/scylla --workdir tmp --smp 1 --developer-mode 1
This will start a Scylla node with one CPU core allocated to it and data files stored in the tmp directory.
The --developer-mode is needed to disable the various checks Scylla performs at startup to ensure the machine is configured for maximum performance (not relevant on development workstations).
Please note that you need to run Scylla with dbuild if you built it with the frozen toolchain.
For more run options, run:
$ ./tools/toolchain/dbuild ./build/release/scylla --help
Testing
See test.py manual.
Scylla APIs and compatibility
By default, Scylla is compatible with Apache Cassandra and its APIs - CQL and Thrift. There is also support for the API of Amazon DynamoDB™, which needs to be enabled and configured in order to be used. For more information on how to enable the DynamoDB™ API in Scylla, and the current compatibility of this feature as well as Scylla-specific extensions, see Alternator and Getting started with Alternator.
Documentation
Documentation can be found here. Seastar documentation can be found here. User documentation can be found here.
Training
Training material and online courses can be found at Scylla University. The courses are free, self-paced and include hands-on examples. They cover a variety of topics including Scylla data modeling, administration, architecture, basic NoSQL concepts, using drivers for application development, Scylla setup, failover, compactions, multi-datacenters and how Scylla integrates with third-party applications.
Contributing to Scylla
If you want to report a bug or submit a pull request or a patch, please read the contribution guidelines.
If you are a developer working on Scylla, please read the developer guidelines.
Contact
- The users mailing list and Slack channel are for users to discuss configuration, management, and operations of the ScyllaDB open source.
- The developers mailing list is for developers and people interested in following the development of ScyllaDB to discuss technical topics.