7fd31088f2
SSTables that contain many keys - a common case with small partitions in long lived nodes - can generate filters that are quite large. I have seen stalls over 80ms when reading a filter that was the result of a 6h write load of very small keys after nodetool compact (filter was in the 100s of MB) Similar care should be taken when creating the filter, as if the estimated number of partitions is big, the resulting large_bitset can be quite big as well. If we treat the i_filter.hh and large_bitset.hh interfaces as truly generic, then maybe we should have an in_thread version along with a common version. But the bloom filter is the only user for both and even if that changes in the future, it is still a good idea to run something with a massive loop in a thread. So for simplicity, I am just asserting that we are on a thread to avoid surprises, and inserting preemption points in the loops. 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>