Paweł Dziepak 6a0ee5dbbf Merge "Simpler fix for the memtable reader's fragment monotonicity violation" from Botond
"
Recently it was discovered that the memtable reader
(partition_snapshot_reader to be more precise) can violate mutation
fragment monotonicity, by remitting range tombstones when those overlap
with more than one ck range of the partition slice.
This was fixed by 7049cd9, however after that fix was merged a much
simpler fix was proposed by Tomek, one that doesn't involve nearly as
much changes to the partition snapshot reader and hences poses less risk
of breaking it.
This mini-series reverts the previous fix, then applies the new, simpler
one.

Refs: #4104
"

* 'partition-snapshot-reader-simpler-fix/v2' of https://github.com/denesb/scylla:
  partition_snapshot_reader: don't re-emit range tombstones overlapping multiple ck ranges
  Revert "partition_snapshot_reader: don't re-emit range tombstones overlapping multiple ck ranges"
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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. Note: GCC >= 8.1.1 is require 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>

Contributing to Scylla

Guidelines for contributing

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