Xuan Gong created YARN-2548:
-------------------------------

             Summary: Find a more scalable way to handle logs for long running 
service
                 Key: YARN-2548
                 URL: https://issues.apache.org/jira/browse/YARN-2548
             Project: Hadoop YARN
          Issue Type: Sub-task
            Reporter: Xuan Gong
            Assignee: Xuan Gong


After YARN-2468, the container logs will be aggregated separately based on the 
time. It will increate the total number of log files. It is fine for small 
cluster. But for the larger cluster, it will make too-many-files problem even 
worse.

We need to find a more scalable way to handle those logs. Aggregate all 
container logs in a single file is an option, but we need to find a different 
way, other than TFile(do not support append), to do it.



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