[jira] [Commented] (SPARK-18827) Cann't cache broadcast to disk

["Yuming Wang (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-18827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15741009#comment-15741009 ] 

Yuming Wang commented on SPARK-18827:
-------------------------------------

I will create a PR later.

> Cann't cache broadcast to disk
> ------------------------------
>
>                 Key: SPARK-18827
>                 URL: https://issues.apache.org/jira/browse/SPARK-18827
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 2.0.1, 2.0.2, 2.1.0
>            Reporter: Yuming Wang
>
> How to reproduce it:
> {code:java}
>   test("Cache broadcast to disk") {
>     val conf = new SparkConf()
>       .setAppName("Cache broadcast to disk")
>       .setMaster("local")
>       .set("spark.memory.useLegacyMode", "true")
>       .set("spark.storage.memoryFraction", "0.0")
>     sc = new SparkContext(conf)
>     val list = List[Int](1, 2, 3, 4)
>     val broadcast = sc.broadcast(list)
>     assert(broadcast.value.sum === 10)
>   }
> {code}
> It will fail on spark2.0.1, spark2.0.2 and spark2.1.0.



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