https://community.cloudera.com/t5/Archives-of-Support-Questions/Error-Cannot-load-main-class-from-JAR-file-yarn-nm-usercache/m-p/82035#M84733 I have found the problem, I committed the process of operation error. Thank you for browsing . Wed, 07 Nov 2018 07:10:41 GMT Dove 2018-11-07T07:10:41Z https://community.cloudera.com/t5/Archives-of-Support-Questions/Error-Cannot-load-main-class-from-JAR-file-yarn-nm-usercache/m-p/82026#M84732 <P><SPAN>In the hue interface, oozie is used to submit and execute the spark2 workflow. The error is as follows:</SPAN></P><P><SPAN>&nbsp;&nbsp;</SPAN></P><PRE>Error: Cannot load main class from JAR file:/yarn/nm/usercache/hue/appcache/application_1541554513940_0002/container_1541554513940_0002_01_000001/com.hundsun.spark.ProgramEntry Run with --help for usage help or --verbose for debug output</PRE><P>&nbsp;<SPAN>Ask for help. Thanks</SPAN></P> Fri, 16 Sep 2022 13:52:24 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/Error-Cannot-load-main-class-from-JAR-file-yarn-nm-usercache/m-p/82026#M84732 Dove 2022-09-16T13:52:24Z https://community.cloudera.com/t5/Archives-of-Support-Questions/Error-Cannot-load-main-class-from-JAR-file-yarn-nm-usercache/m-p/82035#M84733 I have found the problem, I committed the process of operation error. Thank you for browsing . Wed, 07 Nov 2018 07:10:41 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/Error-Cannot-load-main-class-from-JAR-file-yarn-nm-usercache/m-p/82035#M84733 Dove 2018-11-07T07:10:41Z