Could you try the following
1. Switch to job user , Check “ ls - l <full path to nodemanager jar>” to check access to jar . Check parent dir permissions too From: alex noure [mailto:[email protected]] Sent: 20 August 2019 16:50 To: Prabhu Josephraj <[email protected]> Cc: [email protected]; [email protected] Subject: Re: Could not find or load main class org.apache.hadoop.yarn.server.nodemanager.containermanager.loca lizer.ContainerLocalizer Hi Prabhu Thank you for your reply. I did the following: chmod 777 hadoop-yarn-server-nodemanager-<version>.jar Restarted NodeManager, resourcemanager Still reporting an error Could not find or load main class org.apache.hadoop.yarn.server.nodemanager.containermanager.loca lizer.ContainerLocalizer Prabhu Josephraj <[email protected]<mailto:[email protected]>> 于2019年8月20日周二 下午6:18写道： On Secure Cluster, The ContainerLocalizer JVM runs as job user. The below issue happens when the job user does not have access to the hadoop-yarn-server-nodemanager-<version>.jar present on hadoop classpath of NodeManager machine. Could not find or load main class org.apache.hadoop.yarn.server.nodemanager.containermanager.loca lizer.ContainerLocalizer Make sure the job user has access to hadoop-yarn-server-nodemanager-<version>.jar. On Tue, Aug 20, 2019 at 3:40 PM alex noure <[email protected]<mailto:[email protected]>> wrote: Hi all, When we configure kerberos to submit tasks, only the primary account can be submitted successfully, and other accounts cannot be submitted. Report Could not find or load main class org.apache.hadoop.yarn.server.nodemanager.containermanager.loca lizer.ContainerLocalizer My question is the same as this https://issues.apache.org/jira/browse/MAPREDUCE-7224 issue. I saw that my cluster environment variables are fine. How can I solve this problem? -- Best
