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https://issues.apache.org/jira/browse/SPARK-33037?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17204965#comment-17204965
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Apache Spark commented on SPARK-33037:
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User 'boy-uber' has created a pull request for this issue:
https://github.com/apache/spark/pull/29916
> Add "spark.shuffle.manager" value to knownManagers
> --------------------------------------------------
>
> Key: SPARK-33037
> URL: https://issues.apache.org/jira/browse/SPARK-33037
> Project: Spark
> Issue Type: Improvement
> Components: Shuffle
> Affects Versions: 2.4.7, 3.0.1
> Reporter: BoYang
> Priority: Major
>
> Spark has a hardcode list to contain known shuffle managers, which has two
> values now. It does not contain user's custom shuffle manager which is set
> through Spark config "spark.shuffle.manager".
>
> We hit issue when set "spark.shuffle.manager" with our own shuffle manager
> plugin (Uber Remote Shuffle Service implementation,
> [https://github.com/uber/RemoteShuffleService]). Other users will hit same
> issue when they implement their own shuffle manager.
>
> Need to add "spark.shuffle.manager" config value to the known managers list
> as well.
>
> The know managers list is in code:
> common/network-shuffle/src/main/java/org/apache/spark/network/shuffle/ExternalShuffleBlockResolver.java
> {quote}private final List<String> knownManagers = Arrays.asList(
> "org.apache.spark.shuffle.sort.SortShuffleManager",
> "org.apache.spark.shuffle.unsafe.UnsafeShuffleManager");
> {quote}
>
>
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