Install protobuf-2.5.0

1. Download

    hadoop to communicate using protocol buffer, you need to download and install protobuf-2.5.0.tar.gz. Since protobuf-2.5.0.tar.gz can no longer be downloaded from the official website https://code.google.com/p/protobuf/downloads/list, I uploaded protobuf-2.5.0.tar.gz to Baidu Cloud disk for everyone to download, address: http://pan.baidu.com/s/1pJlZubT .


2. Installation
    Use the tar -zxf protobuf-2.5.0.tar.gz command to decompress and get the source code of protobuf-2.5.0.

     cd protobuf-2.5.0 Enter the directory

    to set the compilation directory and enter the following two commands:

    ./configure --prefix=/usr/local/ 

    make && make install
    Configure environment variables:

    sudo vi .bash_profile
    Add configuration files:
    export PROTOBUF=/usr/local/bin
    export PATH=$PROTOBUF/bin:$PATH

    Finally enter protoc --version command, if libprotoc 2.5.0 is displayed, the installation is successful
and there problem
    Something went wrong? dyld: Library not loaded:
    /User/JYH/Desktop/Hadoop-2.7.2/protobuf/lib/libprotobuf.9.dylib
    Referenced from: /Users/JYH/Desktop/Hadoop-2.7.2/protobuf/bin/protoc
    Reason : image not found
    Abort trap: 6
    Don't worry, first enter the command make clean, and then repeat the above setting to compile the directory, make and make install are fine.