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23d3ca56a1
"optional interposer that will check integrity of writes to sstable components. The option name is enable_sstable_data_integrity_check, it's disabled by default and can be enabled via config file. It will provide enough details that will help to find the root of the issue. if disk failed for example, we would've something like the following reported: ERROR 2017-08-17 09:18:11,577 [shard 0] sstable - integrity check failed for ./data/data/system_schema/aggregates-924c55872e3a345bb10c12f37c1ba895/system_schema-aggregates-ka-111-Scylla.db, stage: read after write verification, write: 4096 bytes to offset 0, reason: data read from underlying storage isn't the same as written, mismatch at byte 0: data written sample: 10000001000000010000001a00000001 date read sample: 00000000000000000000000000000000" * 'integrity_check_interposer_v3' of github.com:raphaelsc/scylla: sstables: optionally check integrity of sstable component writes sstables: remove unneeded new_sstable_component_file variant db/config: add sstable_data_integrity_check option sstables: introduce file interposer for integrity check
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>