MADlib 2.X requires python version 3.9. Other python 3 versions might work as well. Python 2.x is not supported.

MADlib requires the GNU M4 Unix macro processor which must be present for installation to succeed.

Currently supported database versions: GPDB 6 (with python3 extension), GPDB 7, PostgreSQL 15

The following python libraries are required for their associated modules:

Installation: pyyaml==6.0.1, pyxb-x==1.2.6.1

Various: numpy==1.25.2

Deep Learning: dill==0.3.7, grpcio==1.57.0, protobuf==3.19.4, hyperopt==0.2.5, tensorflow == 2.10, scikit-learn==1.3.0

XGBoost: pandas==2.0.3, xgboost==1.7.6

KNN: scipy==1.11.2

Unit tests: pgsanity


Quick Start With Binaries

Prerequisites

MADlib currently supports Greenplum database with binaries.

If the environment variables listed below are defined, it can save you some typing.

Installing MADlib

  1. Download the MADlib binary
    • Linux .gppkg binaries can be found on Tanzu Network in the "Greenplum Advanced Analytics Group"
      • NOTE: the above .gppkg binaries work for both open and closed source Greenplum and can be downloaded by anybody (after creating a Pivotal Network account)
  2. Install the package.

    Greenplum:

    • on Redhat / CentOS run the following as gpadmin:

      gppkg install <madlib_package>
  3. Ensure that the environment is setup for your database deployment and that the database is up and running.

    • Ensure that psql, postgres, and pg_config are in your path

      which psql postgres pg_config

    • Ensure that the database is started and running

      psql -c 'select version()'

      The above may need user/port/password setting depending on how the database has been configured.

  4. Run the MADlib deployment utility to deploy MADlib into each database that you want to use it:

    • Greenplum Database:

      /usr/local/madlib/bin/madpack –p greenplum install

    • if environment variables are defined. Otherwise use a fully defined connection string:

      /usr/local/madlib/bin/madpack -s madlib -p postgres -c [user[/password]@][host][:port][/database] install

      The command above may need user/port/password setting depending on how the database has been configured.


  5. After installation gpadmin should grant all privileges on schema madlib to users who will be accessing MADlib functions. Otherwise, users will get "ERROR: permission denied for schema MADlib."  Also, install checks (see next step below) will fail if CREATE TEMP TABLE privileges are not granted on the schema where MADlib is installed. See the PostgreSQL docs for information on schemas and privileges.

  6. Test your installation

    • Greenplum Database:

      /usr/local/madlib/bin/madpack –p greenplum install-check

      The command above may need user/port/password setting depending on how the database has been configured. 

      Please note that if the optimizer_control GUC is set to off in Greenplum, the following install checks will fail, and these MADlib functions will not work:  decision tree, random forest, LDA , k-Means, PMML export for decision tree, PMML export for random forest.  This will be fixed in a future release (MADLIB-1109).  The parameter optimizer_control controls whether the server configuration parameter optimizer can be changed. The parameter optimizer controls whether the GPORCA optimizer is enabled when running SQL queries.

Compiling From Source

Prerequisites

Requirements for compiling and installing MADlib:

  • gcc and g++
    • For OS X, -DCXX11=1 will enable C++11, which is necessary for compiling MADlib 2.X on OS X.
  • python 3.9
    • Other python 3 versions might work as well
    • python 2.x is not currently supported by MADlib.
    • Make sure python3 is installed on your environment. You can use virtual env.
      python3 -m venv venv 
  • cmake
    • NOTE: the latest version of cmake might cause issues. Please try cmake 3.5.2 in case you get an error or a segmentation fault.
    • NOTE: We have seen occasions where cmake will have issues running (seg fault) if the greenplum_path.sh file has been sourced prior to the cmake execution. If you encounter issues, you can use ldd on the cmake executable to confirm dynamic libraries are picked up from the Greenplum installation directories. If this is the case, start a new shell in which the greenplum_path.sh file is not sourced in your current running shell session. You can reference MADLIB-1093 for additional details.
  • An installed version of Greenplum Database or PostgreSQL (64-bit) with plpython3u support enabled.  
    • NOTE: plpython3u may not be enabled in Postgres by default.

Postgres platform notes:

  • Ensure that you install Postgres with the Python extension specified (i.e., --with-python), as described here in the PostgreSQL documentation. If not you will see an error message like the one below when you try to install MADlib with madpack:
/usr/local/madlib/bin/madpack -s madlib -p postgres install
madpack.py : INFO : Detected PostgreSQL version 9.5.
madpack.py : INFO : *** Installing MADlib ***
madpack.py : INFO : MADlib tools version = 1.9.1 (//usr/local/madlib/Versions/1.9.1/bin/../madpack/madpack.py)
madpack.py : INFO : MADlib database version = None (host=localhost:5432, db=postgres, schema=madlib)
madpack.py : INFO : Testing PL/Python environment...
madpack.py : INFO : > Creating language PL/Python...
madpack.py : ERROR : SQL command failed:
SQL: CREATE LANGUAGE plpythonu;
ERROR: could not access file "$libdir/plpython2": No such file or directory
madpack.py : ERROR : Cannot create language plpythonu. Please check if you
                have configured and installed portid (your platform) with
                `--with-python` option. Stopping installation...
madpack.py : ERROR : MADlib installation failed

Compiling MADlib

Ensure prerequisites and necessary python dependencies are installed.  

In the $MADLIB_ROOT directory (location of the MADlib source) run the following commands:

mkdir build 
cd build 
cmake .. # pass -DCXX11=1 when compiling with OSX 
make -j8 # if this causes issues, switch back to a plain `make`

Above, we built the executables in the build folder. This can, however, be any user-named folder (henceforth called $BUILD_ROOT).

Installing MADlib

Install MADlib into the database with MADlib package manager madpack located under $BUILD_ROOT/src/bin.

Run the MADlib deployment utility to install MADlib into each database that you want to use it:

  • Postgres:

    $BUILD_ROOT/src/bin/madpack -s madlib –p postgres install

    if environment variables are defined. Otherwise use a fully defined connection string:

    $BUILD_ROOT/src/bin/madpack -s madlib -p postgres -c [user[/password]@][host][:port][/database] install

  • Greenplum Database:

    $BUILD_ROOT/src/bin/madpack –p greenplum install

    The above may need user/port/password setting depending on how the database has been configured.

  • To install:

    $BUILD_ROOT/src/bin/madpack -p postgres -c [user[/password]@][host][:port][/database] install

  • To make sure that the installation is successful:

    $BUILD_ROOT/src/bin/madpack -p postgres -c [user[/password]@][host][:port][/database] install-check

  • For more information on the usage of madpack:

    $BUILD_ROOT/src/bin/madpack --help

Compiling MADlib with Greenplum 7


git clone https://github.com/apache/madlib.git
cd madlib
git checkout madlib2-master
#source GPDB7 environment
source $GPHOME/greenplum_path.sh
rm -rf $GPHOME/lib/python/yaml/
# Uninstall libboost to avoid version conflict with MADlib and use the one downloaded at build time 
cd build
python3 -m venv venv #only needed once to bootstrap virtual env
source venv/bin/activate
pip3 install pyyaml pyxb-x
cmake .. # pass -DCXX11=1 when compiling with OSX 
make -j8 # May cause a failure when trying to download libboost for the first time
         # re-run make if fails
./src/bin/madpack -p greenplum -c /<database> install

Defining environment variables

The variables below will be automatically used by the madpack installer if no connection string is provided:

  1. User: PGUSER or USER (defaults to OS username)
  2. Password: PGPASSWORD (defaults to empty)
  3. Host: PGHOST (defaults to 'localhost')
  4. Database: PGDATABASE (defaults to OS username)
  5. Port: PGPORT (defaults to 5432)

An example of deploying MADlib using the environment variables:

export PGPORT=5430
export PGHOST=127.0.0.1
export PGDATABASE=madlibtest
$BUILD_ROOT/src/bin/madpack -p postgres install

Defining GPDB variables

The variables below can be set in GPDB in case memory-related issues show up. Feel free to adjust them based on the specifics of the installed system.

set max_statement_mem='50GB';
set statement_mem='50GB';
set memory_spill_ratio=80;
set gp_resqueue_memory_policy=auto;
set work_mem='4GB';
set gp_vmem_protect_limit=20000

Upgrading MADlib gppkg

  1. Download the MADlib binary
  2. Upgrade MADlib gppkg

    • Upgrading gppkg to a higher version of MADlib:
      For example, upgrading from 2.0.0 to 2.1.0

      on Redhat / CentOS run the following as gpadmin:

      gppkg install <madlib_package_upgrading_to>

      Upgrade the MADlib deployment in the database

      madpack -p <platform> -c <connection> upgrade

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