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https://issues.apache.org/jira/browse/SPARK-3326?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Guoqiang Li resolved SPARK-3326.
--------------------------------
Resolution: Not a Problem
> can't access a static variable after init in mapper
> ---------------------------------------------------
>
> Key: SPARK-3326
> URL: https://issues.apache.org/jira/browse/SPARK-3326
> Project: Spark
> Issue Type: Bug
> Environment: CDH5.1.0
> Spark1.0.0
> Reporter: Gavin Zhang
>
> I wrote a object like:
> object Foo {
> private Bar bar = null
> def init(Bar bar){
> this.bar = bar
> }
> def getSome(){
> bar.someDef()
> }
> }
> In Spark main def, I read some text from HDFS and init this object. And after
> then calling getSome().
> I was successful with this code:
> sc.textFile(args(0)).take(10).map(println(Foo.getSome()))
> However, when I changed it for write output to HDFS, I found the bar variable
> in Foo object is null:
> sc.textFile(args(0)).map(line=>Foo.getSome()).saveAsTextFile(args(1))
> WHY?
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