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The "WritingYarnApps" page has been changed by ChrisRiccomini: http://wiki.apache.org/hadoop/WritingYarnApps?action=diff&rev1=4&rev2=5 * ClientRMProtocol -> Protocol for job-client (launching program from gateway) to talk to RM to launch a new application i.e. application master itself * AMRMProtocol -> Protocol for AM to use to register/stop itself and get resources from the Scheduler + === FAQ === + + '''How can I distribute my application's jars distributed to all of the nodes in the YARN cluster that need it?''' + + '''Why does my application's client have to send the app ID/attempt ID/cluster timestamp to my application master?''' + + This is actually going to be improved. It will likely become environment variables, or substituted variables (like the fail count). For more details, track this ticket: https://issues.apache.org/jira/browse/MAPREDUCE-3055 + === Useful Links === * https://issues.apache.org/jira/secure/attachment/12486023/MapReduce_NextGen_Architecture.pdf
