[jira] [Created] (ZEPPELIN-3944) Update Dockerfiles of spark_standalone and spark_yarn_cluster

[Yui Hirasawa (JIRA)]

Yui Hirasawa created ZEPPELIN-3944:
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             Summary: Update Dockerfiles of spark_standalone and 
spark_yarn_cluster
                 Key: ZEPPELIN-3944
                 URL: https://issues.apache.org/jira/browse/ZEPPELIN-3944
             Project: Zeppelin
          Issue Type: Improvement
            Reporter: Yui Hirasawa


Upgrade the Dockerfiles of spark_standalone and spark_yarn_cluster to CentOS7 
and Spark 2.4.0.

Java remains in version 7 since hadoop 2.x depends on Java7.



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