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From "Sean Owen (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-17802) Lots of "java.lang.ClassNotFoundException: org.apache.hadoop.ipc.CallerContext" In spark logs
Date Wed, 26 Oct 2016 12:32:58 GMT

     [ https://issues.apache.org/jira/browse/SPARK-17802?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sean Owen updated SPARK-17802:
------------------------------
    Assignee: Shuai Lin

> Lots of "java.lang.ClassNotFoundException: org.apache.hadoop.ipc.CallerContext" In spark
logs
> ---------------------------------------------------------------------------------------------
>
>                 Key: SPARK-17802
>                 URL: https://issues.apache.org/jira/browse/SPARK-17802
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>            Reporter: Shuai Lin
>            Assignee: Shuai Lin
>            Priority: Minor
>             Fix For: 2.1.0
>
>
> SPARK-16757 sets the hadoop {{CallerContext}} when calling hadoop/hdfs apis to make spark
applications more diagnosable in hadoop/hdfs logs. However, the {{CallerContext}} is only
added since [hadoop 2.8|https://issues.apache.org/jira/browse/HDFS-9184], which is not officially
releaed yet. So each time {{utils.CallerContext.setCurrentContext()}} is called (e.g [when
a task is created|https://github.com/apache/spark/blob/b678e46/core/src/main/scala/org/apache/spark/scheduler/Task.scala#L95-L96]),
a "java.lang.ClassNotFoundException: org.apache.hadoop.ipc.CallerContext"
>   error is logged, which pollutes the spark logs when there are lots of tasks.
> We should improve this so it's only logged once.



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