3bd6bceaf0
Passing the read monitor down to the sstable readers is tricky. The point of interest - like compaction - are usually very far from the interfaces that register the monitor, like read_rows. Between the two, there is usually a mutation_reader, which is and ought to be totally unaware of the read monitor: technically, a mutation_reader may not even know it is backed by sstables. The solution is to create a read_monitor_generator, that can be passed from the upper layers, like compaction, to the layers that are actually making the decision of which sstables to create readers for. Note that we don't need an equivalent piece of infrastructure for writes, because writes don't happen through hidden layers and have all the information they need to initialize their monitors. Signed-off-by: Glauber Costa <glauber@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>