Zhang, Liye created SPARK-4989:
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             Summary: wrong application configuration cause cluster down in 
standalone mode
                 Key: SPARK-4989
                 URL: https://issues.apache.org/jira/browse/SPARK-4989
             Project: Spark
          Issue Type: Bug
          Components: Deploy, Spark Core
    Affects Versions: 1.2.0, 1.1.0, 1.0.0
            Reporter: Zhang, Liye
            Priority: Critical


when enabling eventlog in standalone mode, if give the wrong configuration, the 
standalone cluster will down (cause master restart, lose connection with 
workers). 

How to reproduce: just give an invalid value to "spark.eventLog.dir", for 
example: *spark.eventLog.dir=hdfs://tmp/logdir1, hdfs://tmp/logdir2*. This will 
throw illegalArgumentException, which will cause the *Master* restart. And the 
whole cluster is not available.



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