Marcelo Vanzin created SPARK-17611:
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Summary: YarnShuffleServiceSuite swallows exceptions, doesn't
really test a few things
Key: SPARK-17611
URL: https://issues.apache.org/jira/browse/SPARK-17611
Project: Spark
Issue Type: Bug
Components: YARN
Reporter: Marcelo Vanzin
Priority: Minor
If you look at the logs, you'll see exceptions like this:
{noformat}
16/09/20 10:03:45.081 pool-1-thread-1-ScalaTest-running-YarnShuffleServiceSuite
ERROR YarnShuffleService: Exception when initializing application
application_0_0001
java.lang.NullPointerException
at io.netty.buffer.Unpooled.wrappedBuffer(Unpooled.java:183)
at
org.apache.spark.network.util.JavaUtils.bytesToString(JavaUtils.java:80)
at
org.apache.spark.network.sasl.ShuffleSecretManager.registerApp(ShuffleSecretManager.java:62)
at
org.apache.spark.network.yarn.YarnShuffleService.initializeApplication(YarnShuffleService.java:254)
at
org.apache.spark.network.yarn.YarnShuffleServiceSuite$$anonfun$1.apply$mcV$sp(YarnShuffleServiceSuite.scala:89)
at
org.apache.spark.network.yarn.YarnShuffleServiceSuite$$anonfun$1.apply(YarnShuffleServiceSuite.scala:81)
at
org.apache.spark.network.yarn.YarnShuffleServiceSuite$$anonfun$1.apply(YarnShuffleServiceSuite.scala:81)
{noformat}
The underlying reason is that the suite is testing with auth on, but providing
a null auth secret. But because of catch blocks in the shuffle service code,
and failure to properly check things in the suite, the tests pass even though
the underlying code is failing.
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