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433fc6c36e
The exploded_clustering_prefix type has a convenient is_empty() method and an even more convenient "operator bool" shortcut. Unfortunately, the other clustering prefix types (clustering_key_prefix, clustering_key_prefix_view) have, for historic reasons, an is_empty method which takes a schema parameter. That also means they can't have an "operator bool" shortcut. But checking if a prefix doesn't really need the schema - all we need to check is whether the byte representation is empty. The result is simpler and more efficient code, and easier to use. It is also more consistent - all clustering-key-related types will have an "operator bool" instead of just some of them. To avoid massive code changes, we leave a is_empty(schema) variant, which simply calls is_empty(). There's already precedent for that - various methods which have a variant taking schema (and ignoring it) and one taking nothing. Signed-off-by: Nadav Har'El <nyh@scylladb.com> Message-Id: <20180521174220.13262-1-nyh@scylladb.com>
Scylla
Quick-start
$ git submodule update --init --recursive
$ sudo ./install-dependencies.sh
$ ./configure.py --mode=release
$ ninja-build -j4 # Assuming 4 system threads.
$ ./build/release/scylla
$ # Rejoice!
Please see HACKING.md for detailed information on building and developing 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>