[SPARK-23468] Failure to authenticate with old shuffle service

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.3.0
• Fix Version/s: 2.3.0
• Component/s: Spark Core
• Target Version/s: 2.3.0
• Assignee: Marcelo Masiero Vanzin
• Reporter: Marcelo Masiero Vanzin
• Created: 20/Feb/18 19:02
• Updated: 23/Feb/18 06:27
• Resolved: 21/Feb/18 02:06

Description

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:

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)

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.

Issue Links

• links to: [Github] Pull Request #20643 (vanzin)