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.
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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.