Generally to collect the data from various sources we use big data. all the data can be in a distinct form. so we cannot perform processes the effectively. using big data Hadoop  there are various tools available so we can perform the operations effectively ... View more

Connect to which part of Hadoop? HDFS, Hive, HBase? If HDFS, you can use WebHDFS from any programming language with an HTTP client, or you can include the hadoop-common library in your code via Maven, for example. If HBase, there are Java clients you can find. If Hive, you can use JDBC. ... View more