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Posted to issues@spark.apache.org by "Shockang (Jira)" <ji...@apache.org> on 2021/07/10 14:41:00 UTC
[jira] [Commented] (SPARK-35508) job group and description do not
apply on broadcasts
[ https://issues.apache.org/jira/browse/SPARK-35508?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17378483#comment-17378483 ]
Shockang commented on SPARK-35508:
----------------------------------
It seems that this bug comes from this PR: [https://github.com/apache/spark/pull/24595] , which will override the settings of job group and job description in the user code. Let me fix this issue.
> job group and description do not apply on broadcasts
> ----------------------------------------------------
>
> Key: SPARK-35508
> URL: https://issues.apache.org/jira/browse/SPARK-35508
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 3.0.0, 3.1.0
> Reporter: Lior Chaga
> Priority: Minor
> Attachments: spark2-image.png, spark3-image.png
>
>
> Given the following code:
> {code:java}
> SparkContext context = new SparkContext("local", "test");
> SparkSession session = new SparkSession(context);
> List<String> strings = Lists.newArrayList("a", "b", "c");
> List<String> otherString = Lists.newArrayList( "b", "c", "d");
> Dataset<Row> broadcastedDf = session.createDataset(strings, Encoders.STRING()).toDF();
> Dataset<Row> dataframe = session.createDataset(otherString, Encoders.STRING()).toDF();
> context.setJobGroup("my group", "my job", false);
> dataframe.join(broadcast(broadcastedDf), "value").count();
> {code}
> Job group and description do not apply on broadcasted dataframe.
> With spark 2.x, broadcast creation is given the same job description as the query itself.
> This seems to be broken with spark 3.x
> See attached images
> !spark3-image.png! !spark2-image.png!
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