Question

尝试使用有效H2OContext.getOrCreate来调用SparkContext时，我们会随机看到部署失败：

17/04/21 17:21:32 ERROR TaskSchedulerImpl: Lost executor 0 on 172.17.0.4: Remote RPC client disassociated. Likely due to containers exceeding thresholds, or network issues. Check driver logs for WARN messages.
17/04/21 17:21:38 ERROR LiveListenerBus: Listener ExecutorAddNotSupportedListener threw an exception
java.lang.IllegalArgumentException: Executor without H2O instance discovered, killing the cloud!
    at org.apache.spark.listeners.ExecutorAddNotSupportedListener.onExecutorAdded(H2OSparkListener.scala:27)
    at org.apache.spark.scheduler.SparkListenerBus$class.doPostEvent(SparkListenerBus.scala:61)
    at org.apache.spark.scheduler.LiveListenerBus.doPostEvent(LiveListenerBus.scala:36)
    at org.apache.spark.scheduler.LiveListenerBus.doPostEvent(LiveListenerBus.scala:36)
    at org.apache.spark.util.ListenerBus$class.postToAll(ListenerBus.scala:63)
    at org.apache.spark.scheduler.LiveListenerBus.postToAll(LiveListenerBus.scala:36)
    at org.apache.spark.scheduler.LiveListenerBus$$anon$1$$anonfun$run$1$$anonfun$apply$mcV$sp$1.apply$mcV$sp(LiveListenerBus.scala:94)
    at org.apache.spark.scheduler.LiveListenerBus$$anon$1$$anonfun$run$1$$anonfun$apply$mcV$sp$1.apply(LiveListenerBus.scala:79)
    at org.apache.spark.scheduler.LiveListenerBus$$anon$1$$anonfun$run$1$$anonfun$apply$mcV$sp$1.apply(LiveListenerBus.scala:79)
    at scala.util.DynamicVariable.withValue(DynamicVariable.scala:58)
    at org.apache.spark.scheduler.LiveListenerBus$$anon$1$$anonfun$run$1.apply$mcV$sp(LiveListenerBus.scala:78)
    at org.apache.spark.util.Utils$.tryOrStopSparkContext(Utils.scala:1252)
    at org.apache.spark.scheduler.LiveListenerBus$$anon$1.run(LiveListenerBus.scala:77)

H2OContext.getOrCreate会导致错误：

Context.spark_session = SparkSession.builder.getOrCreate()
Context.h2o_context = H2OContext.getOrCreate(Context.spark_session)

来自H2O船员的任何想法？

Answer 1

这是目前Sparkling Water内部后端的已知行为。为避免这种情况，可以使用外部Sparkling Water后端。有关此内容的更多信息，请访问https://github.com/h2oai/sparkling-water/blob/master/doc/backends.md

我目前正在研究这个JIRA，它也应该消除上面的行为。它正在进行中，可以跟踪此JIRA https://0xdata.atlassian.net/browse/SW-369以获取任务的状态。

getOrCreate部署随机失败

1 个答案: