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#Install UniCAP These are instructions for installing UniCAP.

Using Docker Image

We provide an Docker image with the stable version of UniCAP installed. Users can deploy UniCAP using our Big Data Platform (BDP) directly with the associated Docker image.

Using UniCAP in BDP.

##Installing From Source

###Requirements

####C++ Compiler

UniCAP needs a C++ compiler supporting c++11, such as gcc >= 4.7.2 (prefer >= 4.8) or llvm >= 3.4. You can update gcc via either downloading packages, or building from source.

1) Ubuntu 12.04

sudo apt-get install python-software-properties
sudo add-apt-repository ppa:ubuntu-toolchain-r/test
sudo apt-get update
sudo apt-get install gcc-4.8 g++-4.8
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin gcc-4.8 50
sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin g++-4.8 50
sudo update-alternatives --config gcc
sudo update-alternatives --config g++

After that, check the gcc version via:

gcc --version

2) Ubuntu 14.04

Ubuntu 14.04 contains gcc-4.8 in its system software system. Check the gcc version:

gcc --version

####Boost Library

UniCAP needs boost library >= 1.54 (prefer >= 1.55).

1) Ubuntu 12.04

You can install boost via ppa in ubuntu 12.04:

Add ppa:boost-latest/ppa to your system's software sources based on the instructions in

https://launchpad.net/~boost-latest/+archive/ubuntu/ppa

Update your system's software sources:

sudo apt-get update

Install boost 1.55:

sudo apt-get install libboost1.55-all-dev

2) Ubuntu 14.04

Ubuntu 14.04 contains boost1.55

sudo apt-get install libboost1.55-all-dev

####Thrift

  1. Install thrift dependencies:

    sudo apt-get install libevent-dev automake libtool sudo apt-get install flex bison pkg-config libssl-dev

  2. Install thrift from source

    wget http://mirror.nus.edu.sg/apache/thrift/0.9.2/thrift-0.9.2.tar.gz tar zxvf thrift-0.9.2.tar.gz cd thrift-0.9.2 ./configure --without-java --without-go make sudo make install

####Glog and Gflags

UniCAP uses glog and gflags to print log data.

1) Ubuntu 12.04

Install Glog

wget https://google-glog.googlecode.com/files/glog-0.3.3.tar.gz
tar zxvf glog-0.3.3.tar.gz
cd glog-0.3.3
./configure
make
sudo make install

Install Gflags

wget https://github.com/schuhschuh/gflags/archive/master.zip
unzip master.zip
cd gflags-master
mkdir build && cd build
export CXXFLAGS="-fPIC" && cmake .. && make VERBOSE=1
make
sudo make install

2) Ubuntu 14.04

sudo apt-get install libgflags-dev libgoogle-glog-dev

####LevelDB

UniCAP uses LevelDB as one of its storage systems.

sudo apt-get install libleveldb-dev libsnappy-dev

####OpenCV2

UniCAP uses OpenCV2 run image related applications.

wget https://github.com/Itseez/opencv/archive/2.4.11.zip
unzip 2.4.11.zip
./configure
make 
sudo make install

####MPI

UniCAP uses MPI to parallel the application.

sudo apt-get install libopenmpi-dev openmpi-bin openmpi-common openmpi-doc

####HDFS

To work with Hadoop Distributed File System using C++, there are two choices:

1) libhdfs3

Libhdfs3 a native c/c++ hdfs client (there is no need to use Java to work with HDFS in application layer).

Refer to https://github.com/PivotalRD/libhdfs3

To compile libhdfs3, users need following libraries:

sudo apt-get install protobuf-compiler  libprotobuf-dev 
sudo apt-get install libkrb5-dev libxml2-dev libuuid1 uuid-dev 
sudo apt-get install libgsasl7 libgsasl7-dev

2) libhdfs

Libhdfs is a JNI based C api for Hadoop's DFS. It provides a simple subset of C apis to manipulate DFS files and the filesystem.

Clients should compile libhdfs based on their HDFS version in use. To work with JNI, there are some modifications in system:

vi /etc/ld.so.conf.d/java.conf

append following configurations:

/opt/jdk1.7.0_75/jre/lib/amd64
/opt/jdk1.7.0_75/jre/lib/amd64/server

Sometimes, the JNI-based application cannot find the needed jar packets for HDFS operations. Using following commands to generate a shell script, run it at the start up of the application:

find /usr/lib/hadoop -name *.jar|awk '{ printf("export CLASSPATH=%s:$CLASSPATH\n", $0); }' >> hdfs_jni.sh
find /usr/lib/hadoop/lib -name *.jar|awk '{ printf("export CLASSPATH=%s:$CLASSPATH\n", $0); }' >> hdfs_jni.sh
find /usr/lib/hadoop-hdfs/ -name *.jar|awk '{ printf("export CLASSPATH=%s:$CLASSPATH\n", $0); }' >> hdfs_jni.sh
find /usr/lib/hadoop-hdfs/lib/ -name *.jar|awk '{ printf("export CLASSPATH=%s:$CLASSPATH\n", $0); }' >> hdfs_jni.sh

###Compile UniCAP git clone https://github.com/sunpengsdu/unicap cd unicap/build cmake .. make -j8