https://community.cloudera.com/t5/Support-Questions/ATSv2-HBase-Application-The-HBase-application-reported-a/m-p/339623#M233140 <P><a href="https://community.cloudera.com/t5/user/viewprofilepage/user-id/53248">@wazzu62</a>&nbsp;,</P><P>&nbsp;</P><P>"Connection refused" errors usually means that the server is reachable but not accepting connections on that port. If it was a firewall issue you should've seen a "connection timeout" type of error.</P><P>&nbsp;</P><P>This might mean that either (a) the service running on the target server is not actually running or (b) it has been configured with a different port.</P><P>&nbsp;</P><P>Have you tried telneting into that port to check if it's open at all? Try this locally from the server and remotely from where the ATS is running.</P><P>&nbsp;</P><P>Cheers,</P><P>André</P><P><EM>--</EM><BR /><EM>Was your question answered? Please take some time to click on "<STRONG>Accept as Solution</STRONG>" below this post.</EM><BR /><EM>If you find a reply useful, say thanks by clicking on the thumbs up button.</EM></P> Fri, 25 Mar 2022 00:01:09 GMT araujo 2022-03-25T00:01:09Z