The Ultimate Guide to High Availability with MariaDB

Building MyRocks in MariaDB

Contents

  1. Build Process and Requirements
  2. Building on Ubuntu 16.04
  3. Starting MyRocks

This page describes how to get MyRocks in MariaDB when compiling MariaDB from source.

(See https://github.com/facebook/mysql-5.6/wiki/Build-Steps for instructions how to build the upstream)

Build Process and Requirements

MariaDB compile process will compile MyRocks into ha_rocksdb.so by default if the platform supports it (That is, no WITH_ROCKSDB switch is necessary).

Platform requirements:

  • A 64-bit platform (due to some 32 bit compilers having difficulties with RocksDB)
  • git installed (or git submodules fetched somehow)
  • A sufficiently recent compiler:
    • gcc >= 4.8, or
    • clang >= 3.3, or
    • MS Visual Studio 2015 or newer

Building on Ubuntu 16.04

The steps were checked on a fresh install of Ubuntu 16.04.2 LTS Xenial.

sudo apt-get update sudo apt-get -y install g++ cmake libbz2-dev libaio-dev bison zlib1g-dev libsnappy-dev sudo apt-get -y install libgflags-dev libreadline6-dev libncurses5-dev libssl-dev liblz4-dev gdb git ; 
git clone https://github.com/MariaDB/server.git mariadb-10.2 cd mariadb-10.2 git checkout 10.2 git submodule init git submodule update cmake . make -j10

This should produce storage/rocksdb/ha_rocksdb.so which is MyRocks storage engine in the loadable form.

Starting MyRocks

MyRocks does not require any special way to initialize the data directory. Minimal my.cnf flle:

cat > ~/my1.cnf <<EOF [mysqld] datadir=../mysql-test/var/install.db plugin-dir=../storage/rocksdb language=./share/english socket=/tmp/mysql.sock port=3307 plugin-load=ha_rocksdb default-storage-engine=rocksdb EOF

Run the server like this

(cd mysql-test; ./mtr alias) cp -r mysql-test/var/install.db ~/data1 cd ../sql ./mysqld --defaults-file=~/my1.cnf

Compression libraries. Supported compression libraries are listed in rocksdb_supported_compression_types. Compiling like the above, I get:

Snappy,Zlib,LZ4,LZ4HC

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