Problems encountered when compiling Hadoop ecosystem libraries.

issues.md

HDFS

• Need libprotoc 2.5.0 exactly, not compatible with newer systems (mine is running 2.6.1, which is causing a compile error).
  • FIX: Do the following steps

    wget https://github.com/google/protobuf/releases/download/v2.5.0/protobuf-2.5.0.tar.gz
    tar -xzf protobuf-2.5.0.tar.gz
    cd protobuf-2.5.0
    ./configure
    make
    make check
    make install
    protoc --version
    

    • Issues with Fix
      • It installs protoc to /usr/local/bin, but by default, protoc is installed to /usr/bin on Ubuntu, which naturally takes precedence. I could screw with my system, but instead, this would be better-off done in a Docker container so that I don't ruin other applications that might require the newer protoc.

Spark

• No Issues encountered on Ubuntu 16.04 for me.

Flume

• No Issues encountered on Ubuntu 16.04 for me.