J S*_*idt 6 apache-spark pyspark jupyter-notebook
上下文: 集群配置如下:
问题: 我试图在以集群部署模式运行的pyspark jupyter笔记本中创建一个Spark会话。我试图使驱动程序在不是运行jupyter笔记本的节点上运行。现在,我可以在群集上运行作业,但只能使用在node2上运行的驱动程序。
经过大量的挖掘,我发现了这个stackoverflow帖子,其中声称如果您使用spark运行交互式shell,则只能在本地部署模式(驱动程序位于您正在使用的计算机上)中进行。该帖子继续说,类似jupyter hub之类的结果也无法在集群部署模式下工作,但是我找不到任何可以证实这一点的文档。有人可以确认jupyter hub是否可以完全在集群模式下运行吗?
我尝试以集群部署模式运行spark会话:
from pyspark.sql import SparkSession
spark = SparkSession.builder\
.enableHiveSupport()\
.config("spark.local.ip",<node 3 ip>)\
.config("spark.driver.host",<node 3 ip>)\
.config('spark.submit.deployMode','cluster')\
.getOrCreate()
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错误:
/usr/spark/python/pyspark/sql/session.py in getOrCreate(self)
167 for key, value in self._options.items():
168 sparkConf.set(key, value)
--> 169 sc = SparkContext.getOrCreate(sparkConf)
170 # This SparkContext may be an existing one.
171 for key, value in self._options.items():
/usr/spark/python/pyspark/context.py in getOrCreate(cls, conf)
308 with SparkContext._lock:
309 if SparkContext._active_spark_context is None:
--> 310 SparkContext(conf=conf or SparkConf())
311 return SparkContext._active_spark_context
312
/usr/spark/python/pyspark/context.py in __init__(self, master, appName, sparkHome, pyFiles, environment, batchSize, serializer, conf, gateway, jsc, profiler_cls)
113 """
114 self._callsite = first_spark_call() or CallSite(None, None, None)
--> 115 SparkContext._ensure_initialized(self, gateway=gateway, conf=conf)
116 try:
117 self._do_init(master, appName, sparkHome, pyFiles, environment, batchSize, serializer,
/usr/spark/python/pyspark/context.py in _ensure_initialized(cls, instance, gateway, conf)
257 with SparkContext._lock:
258 if not SparkContext._gateway:
--> 259 SparkContext._gateway = gateway or launch_gateway(conf)
260 SparkContext._jvm = SparkContext._gateway.jvm
261
/usr/spark/python/pyspark/java_gateway.py in launch_gateway(conf)
93 callback_socket.close()
94 if gateway_port is None:
---> 95 raise Exception("Java gateway process exited before sending the driver its port number")
96
97 # In Windows, ensure the Java child processes do not linger after Python has exited.
Exception: Java gateway process exited before sending the driver its port number
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目前,独立模式不支持 Python 应用程序的集群模式。
即使您可以集群模式也不适用于交互式环境:
case (_, CLUSTER) if isShell(args.primaryResource) =>
error("Cluster deploy mode is not applicable to Spark shells.")
case (_, CLUSTER) if isSqlShell(args.mainClass) =>
error("Cluster deploy mode is not applicable to Spark SQL shell.")
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