65e488c150
The problem happens for the following sequence of events:
1) reader stops in the middle of some partition before it
skips to another partition range
2) reader is fast forwarded to a partition range which has no data in
the sstable. There are some partitions between the previous
partition range and the one we skip to
3) the reader is asked for next partition
The problem was that mutation_reader::fast_forward_to() was putting
the reader in _read_enabled == false state in step 2, but
data_consume_context was not fast forwarded to the range. When in step
3 we were asked for the next partition, we attempted to skip using
index (because of 1). The result of the skip was some position which
is outside of the current range of data_consume_context, which causes
it to abort. To fix, add a check for _read_enabled before we try to
skip.
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>