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https://issues.apache.org/jira/browse/SPARK-38809?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17518344#comment-17518344
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Anish Shrigondekar edited comment on SPARK-38809 at 4/6/22 6:38 PM:
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Working on this PR and will send the change out soon. CC - [~kabhwan]
was (Author: JIRAUSER287599):
Working on this PR and will send the change out soon
> Implement option to skip null values in symmetric hash impl of stream-stream
> joins
> ----------------------------------------------------------------------------------
>
> Key: SPARK-38809
> URL: https://issues.apache.org/jira/browse/SPARK-38809
> Project: Spark
> Issue Type: Bug
> Components: Structured Streaming
> Affects Versions: 3.2.1
> Reporter: Anish Shrigondekar
> Priority: Major
>
> Implement option to skip null values in symmetric hash impl of stream-stream
> joins
> * In the symmetric has join state manager, we can receive entries with null
> values for a key and that caused the `removeByValue` and get iterators to
> fail and run into the NullPointerException.
> * This is possible if the state recovered is written from a old spark
> version or its corrupted on disk. Since we don't have a utility to query this
> state, we would like to provide a conf option to skip nulls for the symmetric
> hash impl in stream stream joins.
>
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