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Posted to issues@spark.apache.org by "Stavros Kontopoulos (JIRA)" <ji...@apache.org> on 2019/04/30 23:14:00 UTC
[jira] [Updated] (SPARK-27598) DStreams checkpointing does not work
with the Spark Shell
[ https://issues.apache.org/jira/browse/SPARK-27598?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Stavros Kontopoulos updated SPARK-27598:
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Summary: DStreams checkpointing does not work with the Spark Shell (was: DStreams checkpointing does not work with Scala 2.12)
> DStreams checkpointing does not work with the Spark Shell
> ---------------------------------------------------------
>
> Key: SPARK-27598
> URL: https://issues.apache.org/jira/browse/SPARK-27598
> Project: Spark
> Issue Type: Bug
> Components: DStreams
> Affects Versions: 2.4.0, 2.4.1, 2.4.2, 3.0.0
> Reporter: Stavros Kontopoulos
> Priority: Major
>
> When I restarted a stream with checkpointing enabled I got this:
> {quote}19/04/29 22:45:06 WARN CheckpointReader: Error reading checkpoint from file [file:/tmp/checkpoint/checkpoint-1556566950000.bk|file:///tmp/checkpoint/checkpoint-1556566950000.bk]
> java.io.IOException: java.lang.ClassCastException: cannot assign instance of java.lang.invoke.SerializedLambda to field org.apache.spark.streaming.dstream.FileInputDStream.filter of type scala.Function1 in instance of org.apache.spark.streaming.dstream.FileInputDStream
> at org.apache.spark.util.Utils$.tryOrIOException(Utils.scala:1322)
> at org.apache.spark.streaming.dstream.FileInputDStream.readObject(FileInputDStream.scala:314)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> {quote}
> It seems that the closure is stored in the Serialized format and cannot be assigned back to a scala function1
> Details of how to reproduce it here: [https://gist.github.com/skonto/87d5b2368b0bf7786d9dd992a710e4e6]
> Maybe this is spark-shell specific and is not expected to work anyway, as I dont see this to be an issues with a normal jar.
> Note that with Spark 2.3.3 the error is different and this still does not work but with a different error.
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