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c12008b8cb
Instead of hiding what compaction method the querier uses (and only expose it via rejecting 'can_be_used_for_page()`) make it very explicit that these are really two different queriers. This allows using different indexes for the two queriers in `querier_cache` and eliminating the possibility of picking up a querier with the wrong compaction method (read kind). This also makes it possible to add new querier type(s) that suit the multishard-query's needs without making a confusing mess of `querier` by making it a union of all querying logic. Splitting the queriers this way changes what happens when a lookup finds a querier of the wrong kind (e.g. emit_only_live::yes for an emit_only_live::no command). As opposed to dropping the found (but wrong) querier the querier will now simply not be found by the lookup. This is a result of using separate search indexes for the different mutation kinds. This change should have no practical implications. Splitting is done by making querier templated on `emit_only_live_rows`. It doesn't make sense to duplicate the entire querier as the two share 99% of the code.
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>