" The warning for discarded futures will only become useful, once we can silence all present warnings and flip the flag to make it become error. Then it will start being useful in finding new, accidental discarding of futures. This series silences all remaining warnings in the Scylla codebase. For those cases where it was obvious that the future is discarded on purpose, the author taking all necessary precaution (handling exception) the warning was simply silenced by casting the future to void and adding a relevant comment. Where the discarding seems to have been done in error, I have fixed the code to not discard it. To the rest of the sites I added a FIXME to fix the discarding. " * 'resolve-discarded-future-warnings/v4.2' of https://github.com/denesb/scylla: treewide: silence discarded future warnings for questionable discards treewide: silence discarded future warnings for legit discards tests: silence discarded future warnings tests/cql_query_test.cc: convert some tests to thread
Scylla
Quick-start
To get the build going quickly, Scylla offers a frozen toolchain which would build and run Scylla using a pre-configured Docker image. Using the frozen toolchain will also isolate all of the installed dependencies in a Docker container. Assuming you have met the toolchain prerequisites, which is running Docker in user mode, building and running is as easy as:
$ ./tools/toolchain/dbuild ./configure.py
$ ./tools/toolchain/dbuild ninja build/release/scylla
$ ./tools/toolchain/dbuild ./build/release/scylla --developer-mode 1
Please see HACKING.md for detailed information on building and developing Scylla.
Note: GCC >= 8.1.1 is required to compile Scylla.
Running Scylla
- Run Scylla
./build/release/scylla
- run Scylla with one CPU and ./tmp as data directory
./build/release/scylla --datadir tmp --commitlog-directory tmp --smp 1
- For more run options:
./build/release/scylla --help
Building Fedora RPM
As a pre-requisite, you need to install Mock on your machine:
# Install mock:
sudo yum install mock
# Add user to the "mock" group:
usermod -a -G mock $USER && newgrp mock
Then, to build an RPM, run:
./dist/redhat/build_rpm.sh
The built RPM is stored in /var/lib/mock/<configuration>/result directory.
For example, on Fedora 21 mock reports the following:
INFO: Done(scylla-server-0.00-1.fc21.src.rpm) Config(default) 20 minutes 7 seconds
INFO: Results and/or logs in: /var/lib/mock/fedora-21-x86_64/result
Building Fedora-based Docker image
Build a Docker image with:
cd dist/docker
docker build -t <image-name> .
Run the image with:
docker run -p $(hostname -i):9042:9042 -i -t <image name>