https://community.cloudera.com/t5/Support-Questions/how-to-run-a-yarn-jar-in-sandbox/m-p/221478#M183352 <P>Hi, </P><P>I am new to the sandbox. Trying to run a basic map-reduce function written in Java. I have already uploaded the data files in maria_dev user using Ambari files. I tried putting the jar file there only but didn't work. It showed <STRONG>Not a valid jar error</STRONG>. </P><P>I even tried to load the jar file using winscp. Logged in as root user and put the jar file in the tmp folder there. How can I access this jar file as I couldn't find the jar file in shell's tmp folder. </P> Fri, 16 Sep 2022 13:49:07 GMT aggarwal_shivam 2022-09-16T13:49:07Z