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https://issues.apache.org/jira/browse/SPARK-23651?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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liuxian resolved SPARK-23651.
-----------------------------
Resolution: Fixed
> Add a check for host name
> --------------------------
>
> Key: SPARK-23651
> URL: https://issues.apache.org/jira/browse/SPARK-23651
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 2.4.0
> Reporter: liuxian
> Priority: Minor
>
> I encountered a error like this:
> _org.apache.spark.SparkException: Invalid Spark URL:
> spark://HeartbeatReceiver@ci_164:42849_
> _at
> org.apache.spark.rpc.RpcEndpointAddress$.apply(RpcEndpointAddress.scala:66)_
> _at
> org.apache.spark.rpc.netty.NettyRpcEnv.asyncSetupEndpointRefByURI(NettyRpcEnv.scala:134)_
> _at
> org.apache.spark.rpc.RpcEnv.setupEndpointRefByURI(RpcEnv.scala:101)_
> _at org.apache.spark.rpc.RpcEnv.setupEndpointRef(RpcEnv.scala:109)_
> _at org.apache.spark.util.RpcUtils$.makeDriverRef(RpcUtils.scala:32)_
> _at org.apache.spark.executor.Executor.<init>(Executor.scala:155)_
> _at
> org.apache.spark.scheduler.local.LocalEndpoint.<init>(LocalSchedulerBackend.scala:59)_
> _at
> org.apache.spark.scheduler.local.LocalSchedulerBackend.start(LocalSchedulerBackend.scala:126)_
> _at
> org.apache.spark.scheduler.TaskSchedulerImpl.start(TaskSchedulerImpl.scala:164)_
>
> I didn't know why this _URL_(spark://HeartbeatReceiver@ci_164:42849) is
> invalid, so i think we should give a clearer reminder for this error.
>
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