https://community.cloudera.com/t5/Archives-of-Support-Questions/smartsense-hdfs-dashboard-connection-issue/m-p/130657#M43519 <P><A rel="user" href="https://community.cloudera.com/users/1486/smanjee.html" nodeid="1486">@Sunile Manjee</A>, is your Ambari Metrics Service running ? (specifically Ambari Metric Collector)?</P><P>You may want to try restarting AMS Collector and then restart Activity Explorer.</P> Fri, 14 Oct 2016 11:06:27 GMT sheetal 2016-10-14T11:06:27Z https://community.cloudera.com/t5/Archives-of-Support-Questions/smartsense-hdfs-dashboard-connection-issue/m-p/130656#M43518 <P>On HDP 2.5 smartsense 1.3 zeppelin instance for hdfs dashboards I am unable to see any reports. I see errors for each report:</P><PRE>java.net.ConnectException: Connection refused at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)</PRE><P> any insights?</P> Fri, 14 Oct 2016 11:03:46 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/smartsense-hdfs-dashboard-connection-issue/m-p/130656#M43518 sunile_manjee 2016-10-14T11:03:46Z https://community.cloudera.com/t5/Archives-of-Support-Questions/smartsense-hdfs-dashboard-connection-issue/m-p/130657#M43519 <P><A rel="user" href="https://community.cloudera.com/users/1486/smanjee.html" nodeid="1486">@Sunile Manjee</A>, is your Ambari Metrics Service running ? (specifically Ambari Metric Collector)?</P><P>You may want to try restarting AMS Collector and then restart Activity Explorer.</P> Fri, 14 Oct 2016 11:06:27 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/smartsense-hdfs-dashboard-connection-issue/m-p/130657#M43519 sheetal 2016-10-14T11:06:27Z