There are 2 ways to do it. 1. Use commands hadoop daemonlog. Like hadoop daemonlog -setlevel <rm host:rm httport> <full class name including package name| or package name itself only> <level> Here are some examples hadoop daemonlog -setlevel <rm host:rm httport> org.apache.hadoop.yarn.server.resourcemanager DEBUG Or to enable debug log on full use something like: hadoop daemonlog -setlevel <rm host:rm httport> org.apache.hadoop.yarn DEBUG Daemonlog reference help "Running Daemonlog make sure are yarn/hdfs cluster admin, e.g. you are part of yarn.admin.acl in case of yarn 2: Via, Namenode/Resourcemanger etc.. access daemon UI like http://<daamonhost>:<httpPort>/logLevel?log, then fill package/classname in test box shown in second row along with desried logging (like DEBUG) here, click "Set Log Level" button. Using either of make sure use have web authenticatio on and you are part cluster admin group or default static web user (which dr.who) is part of cluster admin group
... View more
Hello @MichaelDeGuz When you are using scadmin command, this means your try to Access Shared Cache Manager, To do that make that, make sure that the machine from where you are yarn-site.xml contains yarn.sharedcache.admin.address (the default is 0.0.0.0:8047) property defined. From Error log you posted, it seems your configuration does not provide yarn.sharedcache.admin.address, so it is trying to connect to default shared cache manager address (i.e. 0.0.0.0:8047).
Using -fs/-jt will not work here , -fs is used for providing fs.defaultFS option on command line, similarly -jt is option used to provide Resource manager added on CLI as generic toption To provide yarn.sharedcache.admin.address, you can try to yarn generic CLI as following alsotry : yarn scadmin -Dyarn.sharedcache.admin.address=<sharedcachemanager address:port>
... View more