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README.linux.md

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For CentOS:

  • Install Dependencies

      ./README.CentOS.bash

  • If you want to link cmake3 to cmake, run:

      sudo ln -sf /usr/bin/cmake3 /usr/local/bin/cmake

  • Make sure that you add /usr/local/lib and /usr/local/lib64 to /etc/ld.so.conf, then run command ldconfig.

  • If you want to install and use gcc-6 by default, run:

    sudo yum install -y centos-release-scl
sudo yum install -y devtoolset-6-toolchain
echo 'source scl_source enable devtoolset-6' >> ~/.bashrc

For RHEL

Use dependency script for CentOS.

  • If you want to install devtoolset-6:

    sudo yum-config-manager --enable rhui-REGION-rhel-server-rhscl
sudo yum install -y devtoolset-6-toolchain

For Ubuntu:

  • Install Dependencies When you run the README.ubuntu.bash script for dependencies, you will be asked to configure realm for kerberos. You can enter any realm, since this is just for testing, and during testing, it will reconfigure a local server/client. If you want to skip this manual configuration, use: export DEBIAN_FRONTEND=noninteractive

      ./README.ubuntu.bash

  • If you want to use gcc-6 and g++-6:

    add-apt-repository ppa:ubuntu-toolchain-r/test -y
apt-get update
apt-get install -y gcc-6 g++-6

Common Platform Tasks:

Make sure that you add /usr/local/lib to /etc/ld.so.conf, then run command ldconfig. After building the optimizer, run ldconfig again to make sure necessary links and cache have been created for these shared libraries.

  1. ORCA requires CMake 3.x; make sure you have it installed. Installation instructions vary, please check the CMake website.

  2. Create gpadmin and setup ssh keys Either use:

    # Requires gpdb clone to be named gpdb_src
gpdb_src/concourse/scripts/setup_gpadmin_user.bash

    to create the gpadmin user and set up keys,

    OR

    manually create ssh keys so you can do ssh localhost without a password, e.g.,

    ssh-keygen
cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
chmod 600 ~/.ssh/authorized_keys

  3. Verify that you can ssh to your machine name without a password

     ssh <hostname of your machine>  # e.g., ssh briarwood

  4. Set up your system configuration:

sudo bash -c 'cat >> /etc/sysctl.conf <<-EOF
kernel.shmmax = 500000000
kernel.shmmni = 4096
kernel.shmall = 4000000000
kernel.sem = 500 1024000 200 4096
kernel.sysrq = 1
kernel.core_uses_pid = 1
kernel.msgmnb = 65536
kernel.msgmax = 65536
kernel.msgmni = 2048
net.ipv4.tcp_syncookies = 1
net.ipv4.ip_forward = 0
net.ipv4.conf.default.accept_source_route = 0
net.ipv4.tcp_tw_recycle = 1
net.ipv4.tcp_max_syn_backlog = 4096
net.ipv4.conf.all.arp_filter = 1
net.ipv4.ip_local_port_range = 1025 65535
net.core.netdev_max_backlog = 10000
net.core.rmem_max = 2097152
net.core.wmem_max = 2097152
vm.overcommit_memory = 2

EOF'

sudo bash -c 'cat >> /etc/security/limits.conf <<-EOF
* soft nofile 65536
* hard nofile 65536
* soft nproc 131072
* hard nproc 131072

EOF'

sudo bash -c 'cat >> /etc/ld.so.conf <<-EOF
/usr/local/lib

EOF'