Object Class in Java

Object class in Java, residing in java.lang package is the root of the Java class hierarchy. Every class in Java inherits either directly or indirectly from the Object class. If a Java class doesn’t extend any other class then also it implicitly extends Object class making it a direct descendant…

Continue reading

How to Check For Which Compressors Native Libraries Are Present

If you want to check for which compressors native libraries are present in Hadoop, you can do that using checknative -a command.

As you can see using checknative command you can check which native libraries are present in hadoop. For zlib, snappy, lz4 and bzip2 it is true, for…

Continue reading