Configuring the HPE Ezmeral Data Fabric Event Store C Client

After installing the MapR Client and before developing applications, you must configure your client C library by setting the library path.

Linux

For Linux installations, add /opt/mapr/lib to the end of LD_LIBRARY_PATH.

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/mapr/lib

Important: For MapR 6.0.1, the libjvm.so configuration is not required.

For MapR 6.0.0 and earlier, add the /opt/mapr/lib and the path to the directory that contains libjvm.so to the end of LD_LIBRARY_PATH.

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/mapr/lib:<path_to_libjvm.so_directory>

The location of the libjvm.so differs based on where you installed Java. You can use find / -name libjvm* to determine the file location. For example, if the libjvm.so file is in the following location:

/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so

Then, you set the library path like this:

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/mapr/lib:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/

Mac

For Mac installations, add /opt/mapr/lib to the end of DYLD_LIBRARY_PATH.

export DYLD_LIBRARY_PATH=$DYLD_LIBRARY_PATH:/opt/mapr/lib

Important: For MapR 6.0.1, the libjvm.so configuration is not required.

For MapR 6.0.0 and earlier, add /opt/mapr/lib and the path to the directory that contains libjvm.dylib to the end of DYLD_LIBRARY_PATH.

export DYLD_LIBRARY_PATH=$DYLD_LIBRARY_PATH:/opt/mapr/lib:<path_to_libjvm.dylib_directory>

The location of the libjvm.dylib differs based on where you installed Java. You can use find / -name libjvm* to determine the file location. For example, if the libjvm.dylib file is in the following location:

/Library/Java/JavaVirtualMachines/jdk1.8.0_121.jdk/Contents/Home/jre/lib/server/libjvm.dylib

Then, you set the library path like this:

export DYLD_LIBRARY_PATH=$DYLD_LIBRARY_PATH:/opt/mapr/lib:/Library/Java/JavaVirtualMachines/jdk1.8.0_121.jdk/Contents/Home/jre/lib/server

Windows

Note: As of MapR 6.0.1, the MapR C client is available on Windows.

For Windows installations, no additional configuration is required. Link your application and run your programs against the MapR Client dynampic link libraries (dll) located at: C:\opt\mapr\lib. The corresponding librdkafka header is C:\opt\mapr\include\librdkafka.