Partitioned sstable set is not self sufficient, because it uses compatible_ring_position_view as key for interval map, which is constructed from a decorated key in sstable object. If sstable object is destroyed, like when compaction releases it early, partitioned set potentially no longer works because c__r__p__v would store information that is already freed, meaning its use implies use-after-free. Therefore, the problem happens when partitioned set tries to access the interval of its interval map and uses freed information from c__r__p__v. Fix is about using the newly introduced compatible_ring_position_or_view which can hold a ring_position, meaning that partitioned set is no longer dependent on lifetime of sstable object. Retire compatible_ring_position_view.hh as it is now unused. Fixes #4572. Signed-off-by: Raphael S. Carvalho <raphaelsc@scylladb.com> Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
Scylla
Quick-start
To get the build going quickly, Scylla offers a frozen toolchain which would build and run Scylla using a pre-configured Docker image. Using the frozen toolchain will also isolate all of the installed dependencies in a Docker container. Assuming you have met the toolchain prerequisites, which is running Docker in user mode, building and running is as easy as:
$ ./tools/toolchain/dbuild ./configure.py
$ ./tools/toolchain/dbuild ninja build/release/scylla
$ ./tools/toolchain/dbuild ./build/release/scylla --developer-mode 1
Please see HACKING.md for detailed information on building and developing Scylla.
Note: GCC >= 8.1.1 is required to compile 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>