Takuya ASADA 6ac254fbcb dist: change nomerges=1 on block devices during fstrim execution
We have problem to run fstrim with nomerges=2, so we need to change
the parameter to 1 during fstrim execution.
To do this, this fix changes follow things:
 - revert dropping scylla_fstrim on Ubuntu 16.04/CentOS
 - disable distribution provided fstrim script
 - enable scylla_fstrim on all distributions
 - introduce --set-nomerges on scylla-blocktune
 - scylla_fstrim call scylla-blocktune by following order:
   - 'scylla-blocktune --set-nomerges 1'
   - 'fstrim' for each devices
   - 'scylla-blocktune --set-nomerges 2'

Fixes #2649

Signed-off-by: Takuya ASADA <syuu@scylladb.com>
Message-Id: <1501531393-21109-1-git-send-email-syuu@scylladb.com>
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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.

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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