Avi Kivity 1533487ba8 Merge "hinted handoff: give a sender a low priority" from Vlad
"
Hinted handoff should not overpower regular flows like READs, WRITEs or
background activities like memtable flushes or compactions.

In order to achieve this put its sending in the STEAMING CPU scheduling
group and its commitlog object into the STREAMING I/O scheduling group.

Fixes #3817
"

* 'hinted_handoff_scheduling_groups-v2' of https://github.com/vladzcloudius/scylla:
  db::hints::manager: use "streaming" I/O scheduling class for reads
  commitlog::read_log_file(): set the a read I/O priority class explicitly
  db::hints::manager: add hints sender to the "streaming" CPU scheduling group
2018-10-23 16:55:05 +00:00
2018-08-01 16:50:58 +01:00
2018-09-17 18:40:23 +03:00
2018-10-18 14:55:18 +03:00
2018-06-19 16:26:51 +03:00
2017-06-23 11:35:35 -04:00
2018-02-14 14:15:59 -05:00
2017-08-27 13:11:33 +03:00
2018-09-03 10:31:44 +03:00
2017-06-23 11:35:35 -04:00
2018-06-05 11:10:24 +02:00

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>

Contributing to Scylla

Guidelines for contributing

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