Shixiong Zhu created SPARK-19432:
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Summary: Fix an unexpected failure when connecting timeout
Key: SPARK-19432
URL: https://issues.apache.org/jira/browse/SPARK-19432
Project: Spark
Issue Type: Bug
Components: Spark Core
Affects Versions: 2.1.0, 2.0.2
Reporter: Shixiong Zhu
Assignee: Shixiong Zhu
Priority: Minor
When connecting timeout, `ask` may fail with a confusing message:
{code}
17/02/01 23:15:19 INFO Worker: Connecting to master ...
java.lang.IllegalArgumentException: requirement failed: TransportClient has not
yet been set.
at scala.Predef$.require(Predef.scala:224)
at
org.apache.spark.rpc.netty.RpcOutboxMessage.onTimeout(Outbox.scala:70)
at
org.apache.spark.rpc.netty.NettyRpcEnv$$anonfun$ask$1.applyOrElse(NettyRpcEnv.scala:232)
at
org.apache.spark.rpc.netty.NettyRpcEnv$$anonfun$ask$1.applyOrElse(NettyRpcEnv.scala:231)
at scala.concurrent.Future$$anonfun$onFailure$1.apply(Future.scala:138)
at scala.concurrent.Future$$anonfun$onFailure$1.apply(Future.scala:136)
at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:32)
{code}
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