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6c48ce065e
We are not removing the range. Current node and new node will be
responsible for the range are calculated. We only need to stream data to
node = new node - current node. E.g,
Assume we have node 1 and node 2 in the cluster, RF=2. If we remove node2:
Range (3c 25 fa 7e d2 2a 26 b4 , 81 2a a7 32 29 e5 3a 7c ],
current_replica_endpoints={127.0.0.1, 127.0.0.2} new_replica_endpoints={127.0.0.1}
Range (3c 25 fa 7e d2 2a 26 b4 , 81 2a a7 32 29 e5 3a 7c ] already in all replicas
no data will be streamed to node 1 since it already has it.
#Scylla
##Building Scylla
In addition to required packages by Seastar, the following packages are required by Scylla.
Submodules
Scylla uses submodules, so make sure you pull the submodules first by doing:
git submodule init
git submodule update --recursive
Building scylla on Fedora
Installing required packages:
sudo yum install yaml-cpp-devel lz4-devel zlib-devel snappy-devel jsoncpp-devel thrift-devel antlr3-tool antlr3-C++-devel libasan libubsan
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 -i -t <image name>