Gera Shegalov created YARN-1701:
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             Summary: More intuitive defaults for AHS
                 Key: YARN-1701
                 URL: https://issues.apache.org/jira/browse/YARN-1701
             Project: Hadoop YARN
          Issue Type: Improvement
            Reporter: Gera Shegalov
            Assignee: Gera Shegalov


When I enable AHS via yarn.ahs.enabled, the app history is still not visible in 
AHS webUI. This is due to NullApplicationHistoryStore as 
yarn.resourcemanager.history-writer.class. It would be good to have just one 
key to enable basic functionality.

yarn.ahs.fs-history-store.uri uses ${hadoop.log.dir}, which is local file 
system location. However, FileSystemApplicationHistoryStore uses DFS by 
default.  



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