INSTALL.md

Install Milvus from Source Code

• Build from source
  • Requirements
  • Compilation
  • Launch Milvus server
• Compile Milvus on Docker
  • Step 1 Pull Milvus Docker images
  • Step 2 Start the Docker container
  • Step 3 Download Milvus source code
  • Step 4 Compile Milvus in the container
• Troubleshooting
  • Error message: protocol https not supported or disabled in libcurl
  • Error message: internal compiler error
  • Error message: error while loading shared libraries: libmysqlpp.so.3
  • CMake version is not supported

Build from source

Requirements

• Operating system

  • Ubuntu 18.04 or higher
  • CentOS 7

  Note: If your Linux operating system does not meet the requirements, we recommend that you pull a Docker image of Ubuntu 18.04 or CentOS 7 as your compilation environment.

• GCC 7.0 or higher to support C++ 17

• CMake 3.12 or higher

• Git

For GPU-enabled version, you will also need:

• CUDA 10.0 or higher
• NVIDIA driver 418 or higher

Compilation

Step 1 Install dependencies

Install in Ubuntu

$ cd [Milvus root path]/core
$ ./ubuntu_build_deps.sh

Install in CentOS

$ cd [Milvus root path]/core
$ ./centos7_build_deps.sh

Step 2 Build

$ cd [Milvus root path]/core
$ ./build.sh -t Debug

or

$ ./build.sh -t Release

By default, it will build CPU-only version. To build GPU version, add -g option.

$ ./build.sh -g

If you want to know the complete build options, run the following command.

$./build.sh -h

When the build is completed, everything that you need in order to run Milvus will be installed under [Milvus root path]/core/milvus.

Launch Milvus server

$ cd [Milvus root path]/core/milvus

Add lib/ directory to LD_LIBRARY_PATH

$ export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:[Milvus root path]/core/milvus/lib

Then start Milvus server:

$ cd scripts
$ ./start_server.sh

To stop Milvus server, run:

$ ./stop_server.sh

Compile Milvus on Docker

With the following Docker images, you should be able to compile Milvus on any Linux platform that runs Docker. To build a GPU supported Milvus, you need to install NVIDIA Docker first.

Step 1 Pull Milvus Docker images

Pull CPU-only image:

$ docker pull milvusdb/milvus-cpu-build-env:latest

Pull GPU-enabled image:

$ docker pull milvusdb/milvus-gpu-build-env:latest

Step 2 Start the Docker container

Start a CPU-only container:

$ docker run -it -p 19530:19530 -d milvusdb/milvus-cpu-build-env:latest

Start a GPU container:

$ docker run --runtime=nvidia -it -p 19530:19530 -d milvusdb/milvus-gpu-build-env:latest

To enter the container:

$ docker exec -it [container_id] bash

Step 3 Download Milvus source code

Download latest Milvus source code:

$ cd /home
$ git clone https://github.com/milvus-io/milvus

To enter its core directory:

$ cd ./milvus/core

Step 4 Compile Milvus in the container

If you are using a CPU-only image, compile it like this:

$ ./build.sh -t Release

If you are using a GPU-enabled image, you need to add a -g parameter:

$ ./build.sh -g -t Release

Then start Milvus server：

$ ./start_server.sh

Troubleshooting

Error message: protocol https not supported or disabled in libcurl

Follow the steps below to solve this problem:

1. Make sure you have libcurl4-openssl-dev installed in your system.

2. Try reinstalling the latest CMake from source with --system-curl option:

   $ ./bootstrap --system-curl
   $ make
   $ sudo make install

   If the --system-curl command doesn't work, you can also reinstall CMake in Ubuntu Software on your local computer.

Error message: internal compiler error

Try increasing the memory allocated to Docker. If this doesn't work, you can reduce the number of threads in CMake build in [Milvus root path]/core/build.sh.

make -j 8 install || exit 1 # The default number of threads is 8.

Note: You might also need to configure CMake build for faiss in [Milvus root path]/core/src/index/thirdparty/faiss.

Error message: error while loading shared libraries: libmysqlpp.so.3

Follow the steps below to solve this problem:

1. Check whether libmysqlpp.so.3 is correctly installed.
2. If libmysqlpp.so.3 is installed, check whether it is added to LD_LIBRARY_PATH.

CMake version is not supported

Follow the steps below to install a supported version of CMake:

1. Remove the unsupported version of CMake.

2. Get CMake 3.12 or higher. Here we get CMake 3.12.

   $ wget https://cmake.org/files/v3.12/cmake-3.12.2-Linux-x86_64.tar.gz

3. Extract the file and install CMake.

   $ tar zxvf cmake-3.12.2-Linux-x86_64.tar.gz
   $ mv cmake-3.12.2-Linux-x86_64 /opt/cmake-3.12.2
   $ ln -sf /opt/cmake-3.12.2/bin/* /usr/bin/