Hao Zhu created SPARK-9801:
------------------------------
Summary: 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:
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
>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.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
