/apache-arrow-helloworld

Instructions how to install and compile a simple app for reading a parquet file in C++.

Primary LanguageC++

Instructions how to install apache-arrow with parquet support

Tested on Ubuntu 18.04 (WSL-2)

Building apache-arrow

https://arrow.apache.org/docs/developers/cpp/building.html

git clone https://github.com/apache/arrow.git
cd arrow/cpp
mkdir release
cd release
cmake .. -DARROW_DATASET=ON -DARROW_FILESYSTEM=ON -DARROW_PARQUET=ON -DARROW_PLASMA=ON -DARROW_PYTHON=ON -DARROW_WITH_SNAPPY=ON -DARROW_WITH_ZLIB=ON 
make
sudo make install

C++ compile command

http://www.yolinux.com/TUTORIALS/LibraryArchives-StaticAndDynamic.html

g++ -g helloworld.cpp -o helloworld -I/usr/local/include -L/usr/local/lib -larrow -lparquet -lsnappy -lzlib

-- the libraries used in the code have to be specified, e.g., for libarrow.so you need to add the flag -larrow, etc. -I/usr/local/include is the location of header files (.h). -L/usr/local/lib is the location of .so files.

Then, just run the executable by using

./helloworld

Setting up environment variables

http://www.yolinux.com/TUTORIALS/LibraryArchives-StaticAndDynamic.html

Your executable needs to know the library path. To set it up, add this to your ~/.bashrc file:

if [ -d \usr\local\lib ];
then
   LD_LIBRARY_PATH=\usr\local\lib:$LD_LIBRARY_PATH
fi


export LD_LIBRARY_PATH

\usr\local\lib is where the .so files are located.