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Anna: A KVS for any scale

Note: This is a snapshot of the Anna codebase as of March, 2018. The latest codebase is released and maintained here (https://github.com/fluent-project/fluent).

Anna is an in-memory KVS that delivers high performance at multiple scales, from a single core machine to NUMA to geo-distributed deployment. It also provides a wide spectrum of coordination-free isolation levels that aim to meet the consistency requirements of different applications.

Build Instruction (Ubuntu):

  1. Install Clang and libc++, run:
    sudo apt-get update.
    sudo apt-get install -y build-essential autoconf automake libtool curl make g++ unzip pkg-config wget clang-3.9.
    sudo update-alternatives --install /usr/bin/clang clang /usr/bin/clang-3.9 1.
    sudo update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-3.9 1.
    sudo apt-get install -y libc++-dev libc++abi-dev libtbb-dev.

  2. Install cmake, run:
    wget https://cmake.org/files/v3.9/cmake-3.9.4-Linux-x86_64.tar.gz.
    tar xvzf cmake-3.9.4-Linux-x86_64.tar.gz.
    mv cmake-3.9.4-Linux-x86_64 /usr/bin/cmake.
    export PATH=$PATH:/usr/bin/cmake/bin.
    rm cmake-3.9.4-Linux-x86_64.tar.gz.

  3. Install protobuf: after cloning the protobuf repo, run:
    ./autogen.sh.
    ./configure CXX=clang++ CXXFLAGS='-std=c++11 -stdlib=libc++ -O3 -g'.
    make.
    make check.
    sudo make install.
    ldconfig.

  4. Build KVS, run:
    bash scripts/build_release.sh.
    (This command will build a KVS that provides last-writer-win consistency. Lattice composition for other consistency levels can be found in kvs/include)

IP Configuration:

For each server node:

  1. The ip of the current node should be stored in conf/server/server_ip.txt.
  2. The ip of the seed node should be stored in conf/server/seed_server.txt. The seed node can be any proxy node.
  3. The ip of all the proxy nodes should be stored in conf/server/proxy_address.txt. Each line contains a single proxy ip.

For each proxy node:

  1. The ip of the current node should be stored in conf/proxy/proxy_ip.txt.

For each user/benchmark node:

  1. The ip of the current node should be stored in conf/user/user_ip.txt.
  2. The ip of all the proxy nodes should be stored in conf/user/proxy_address.txt. Each line contains a single proxy ip.

Run Instruction:

Please start the proxy first, and then the server and client.

  1. Start a proxy by running ./build/kvs/kvs_proxy.
  2. Start a server by running ./build/kvs/kvs_server.
  3. Start a client by running ./build/kvs/kvs_user.

The accepted input formats are GET $key and PUT $key $value.