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This patchset adds support for skipping inside wide partitions using
index for sliced queries. This can significantly reduce disk I/O for
queries that only need to read a small amount of data from a wide
partition.
Other changes include general code clean-up and simplification.
* github.com/argenet/scylla.git tree/projects/sstables-30/skip_using_index/v6:
sstables: Support resetting data_consume_rows_context_m to
indexable_element::cell.
tests: Add tests to cover skipping with index through SSTables 3.x.
sstables: Support skipping inside wide partitions using index.
to_string: Add operator<< overload for std::optional.
sstables: Use std::optional instead of std::experimental::optional.
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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>
Contributing to Scylla
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