https://community.cloudera.com/t5/Support-Questions/Exception-in-thread-main-connection-reset/m-p/114450#M77246 <P><A href="https://community.hortonworks.com/users/14078/barshad.html">@Bilal Arshad</A></P><P>From the logs, it looks like port on which Atlas is trying to run is already blocked.[Address already in use]</P><PRE>Exception in thread "main" MultiException[java.lang.ExceptionInInitializerError, java.net.BindException: Address already in use]</PRE><P>So, I would recommend you to follow the below steps.</P><OL> <LI>First stop atlas by running, atlas_stop.py script and make sure atlas is stopped.</LI><LI>Now, with the help of netstat command, check if some other process is already using the atlas port(21000) and kill that process id [kill -9 &lt;pid&gt;].</LI><LI>Now, restart atlas using atlas_start.py and check if that helps.</LI></OL><P>If the above steps are not helping, then I would recommend you to change the atlas default port from 21000 to some other port(eg: 31000) and then restart. Let me know how it goes.</P> Thu, 23 Feb 2017 10:44:15 GMT apathan 2017-02-23T10:44:15Z