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https://issues.apache.org/jira/browse/KYLIN-4916?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17291356#comment-17291356
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ShengJun Zheng commented on KYLIN-4916:
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Close this issue and open two related issues: KYLIN-4918, KYLIN-4919
> ShardingReadRDD's partition number was set to shardNum，causing empty spark
> tasks
> ---------------------------------------------------------------------------------
>
> Key: KYLIN-4916
> URL: https://issues.apache.org/jira/browse/KYLIN-4916
> Project: Kylin
> Issue Type: Improvement
> Reporter: ShengJun Zheng
> Priority: Major
> Fix For: v4.0.0-beta
>
>
> when creating ShardingReadRDD, the created FileScanRDD's partition number was
> set to shard number, causing too many empty tasks when shard number is big.
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