To get a job, probably you need to know what that job requires. Every company is different; they have a different skillset requirements. At the very least, you need to have good understanding and hands-on experience on Hadoop (MapReduce, HDFS, Hive, PIG, Oozie), Spark, Flume, Sqoop.
actually what kind of project going in companies. is it necessary to learn all hadoop ecosystems in hadoop to get a job
To get a job, probably you need to know what that job requires. Every company is different; they have a different skillset requirements. At the very least, you need to have good understanding and hands-on experience on Hadoop (MapReduce, HDFS, Hive, PIG, Oozie), Spark, Flume, Sqoop.