Hi Team, We have found the solution. it was not related to Atlas. Issue was user limit. Recently increase in HDFS data causes more processing at jobs level. Current Hiveserver2 thread count was not sufficient to handle these increased amount of processing. This causes thread creation error for Hive service as shown below: Caused by: java.lang.OutOfMemoryError: unable to create new native thread at java.lang.Thread.start0(Native Method) at java.lang.Thread.start(Thread.java:717) After stopping Atlas service also we were getting same error. To resolve this error, we have increased thread creation capacity of Hive service by increasing value of 'hive_user_nproc_limit' parameter for hive user. Increased in HDFS data might be an coincidence with addition of Atlas service. Regards, Owez Mujawar ... View more