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Apache Spark commented on SPARK-17569: -------------------------------------- User 'brkyvz' has created a pull request for this issue: https://github.com/apache/spark/pull/15122 > Don't recheck existence of files when generating File Relation resolution in > StructuredStreaming > ------------------------------------------------------------------------------------------------ > > Key: SPARK-17569 > URL: https://issues.apache.org/jira/browse/SPARK-17569 > Project: Spark > Issue Type: Improvement > Reporter: Burak Yavuz > > Structured Streaming's FileSource lists files to classify files as Offsets. > Once this file list is committed to a metadata log for a batch, this file > list is turned into a "Batch FileSource" Relation which acts as the source to > the incremental execution. > While this "Batch FileSource" Relation is resolved, we re-check that every > single file exists on the Driver. It takes a horrible amount of time, and is > a total waste. We can simply skip file existence during execution. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org