Configures LevelDB implementation type. It can be AUTO, JNI, or JAVA.
When the type is AUTO, cache store will first try to detect if JNI implementation is
available - if not, AUTO will fallback to pure Java implementation.
Configures LevelDB block size. See LevelDB documentation.
Configures LevelDB cache size. See LevelDB documentation.
Configures LevelDB compression type. See LevelDB documentation. (NONE or SNAPPY)