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https://issues.apache.org/jira/browse/SPARK-9801?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14680879#comment-14680879
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Josh Rosen commented on SPARK-9801:
-----------------------------------
I think there's an earlier duplicate JIRA for this same issue, in case someone
wants to search for it.
> Spark streaming deletes the temp file and backup files without checking if
> they exist or not
> --------------------------------------------------------------------------------------------
>
> Key: SPARK-9801
> URL: https://issues.apache.org/jira/browse/SPARK-9801
> Project: Spark
> Issue Type: Bug
> Components: Streaming
> Affects Versions: 1.4.1
> Reporter: Hao Zhu
> Priority: Minor
>
> For spark streaming, when checkpoint is happening, it is getting below error
> message from spark driver log:
> {code}
> 15/07/29 11:04:50 INFO CheckpointWriter: Saving checkpoint for time
> 1438135490000 ms to file
> 'maprfs:/user/mapr/spark-checkpoint2/checkpoint-1438135490000'
> 15/07/29 11:04:50 ERROR MapRFileSystem: Failed to delete path
> maprfs:/user/mapr/spark-checkpoint2/temp, error: No such file or directory
> (2)
> 15/07/29 11:04:50 ERROR MapRFileSystem: Failed to delete path
> maprfs:/user/mapr/spark-checkpoint2/checkpoint-1438135490000.bk, error: No
> such file or directory (2)
> 15/07/29 11:04:50 INFO CheckpointWriter: Deleting
> maprfs:///user/mapr/spark-checkpoint2/checkpoint-1438135480000
> 15/07/29 11:04:50 INFO CheckpointWriter: Checkpoint for time 1438135490000 ms
> saved to file 'maprfs:/user/mapr/spark-checkpoint2/checkpoint-1438135490000',
> took 8729 bytes and 14 ms
> 15/07/29 11:04:50 INFO DStreamGraph: Clearing checkpoint data for time
> 1438135490000 ms
> 15/07/29 11:04:50 INFO DStreamGraph: Cleared checkpoint data for time
> 1438135490000 ms
> {code}
> From the source code :
> https://github.com/apache/spark/blob/master/streaming/src/main/scala/org/apache/spark/streaming/Checkpoint.scala
> When Spark tries to delete the 2 files, it did not check if the 2 files exist
> or not.
> fs.delete(tempFile, true) // just in case it exists
> fs.delete(backupFile, true) // just in case it exists
> We should add the logic to check if the files exist or not before deleting.
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