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https://issues.apache.org/jira/browse/SPARK-23468?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16370582#comment-16370582
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Apache Spark commented on SPARK-23468:
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User 'vanzin' has created a pull request for this issue:
https://github.com/apache/spark/pull/20643
> Failure to authenticate with old shuffle service
> ------------------------------------------------
>
> Key: SPARK-23468
> URL: https://issues.apache.org/jira/browse/SPARK-23468
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 2.3.0
> Reporter: Marcelo Vanzin
> Priority: Minor
>
> I ran into this while testing a fix for SPARK-23361. Things seem to work fine
> with a 2.x shuffle service, but with a 1.6 shuffle service I get this error
> every once in a while:
> {noformat}
> org.apache.spark.SparkException: Unable to register with external shuffle
> server due to : java.lang.RuntimeException:
> javax.security.sasl.SaslException: DIGEST-MD5: digest response format
> violation. Mismatched response.
> at
> org.spark-project.guava.base.Throwables.propagate(Throwables.java:160)
> at
> org.apache.spark.network.sasl.SparkSaslServer.response(SparkSaslServer.java:121)
> at
> org.apache.spark.network.sasl.SaslRpcHandler.receive(SaslRpcHandler.java:101)
> at
> org.apache.spark.network.server.TransportRequestHandler.processRpcRequest(TransportRequestHandler.java:154)
> at
> org.apache.spark.network.server.TransportRequestHandler.handle(TransportRequestHandler.java:102)
> at
> org.apache.spark.network.server.TransportChannelHandler.channelRead0(TransportChannelHandler.java:104)
> at
> org.apache.spark.network.server.TransportChannelHandler.channelRead0(TransportChannelHandler.java:51)
> {noformat}
> This is a regression in 2.3 and I have a fix for it as part of the fix for
> SPARK-23361. I'm filing this separately so that this particular fix is
> backported to 2.3.
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