31d0a1dd0c
This patch adds a "row_locker" class providing locking (shard-locally) of individual clustering rows or entire partitions, and both exclusive and shared locks (a.k.a. reader/writer lock). As we'll see in a following patch, we need this locking capability for materialized views, to serialize the read-modify-update modifications which involve the same rows or partitions. The new row_locker is significantly different from the existing cell_locker. The two main differences are that 1. row_locker also supports locking the entire partition, not just individual rows (or cells in them), and that 2. row_locker supports also shared (reader) locks, not just exclusive locks. For this reason we opted for a new implementation, instead of making large modificiations to the existing cell_locker. And we put the source files in the view/ directory, because row_locker's requirements are pretty specific to the needs of materialized views. Signed-off-by: Nadav Har'El <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>