Моя цель состоит в том, чтобы использовать oop разъем эластичного поиска для загрузки данных непосредственно в ES с помощью pySpark. Я довольно новичок в datapro c и pySpark и застрял довольно рано.
Я запускаю кластер с одним узлом (Изображение 1.3, Debian 9, Had oop 2.9, Spark 2.3) и это мой код , Я предполагаю, что мне нужно установить Java.
Спасибо!
from pyspark.sql import SQLContext
from pyspark.sql.functions import lit
import os
from pyspark.sql import SparkSession
def install_java():
!apt-get install -y openjdk-8-jdk-headless -qq > /dev/null #install openjdk
os.environ["JAVA_HOME"] = "/usr/lib/jvm/java-8-openjdk-amd64" #set environment
variable
!java -version #check java version
install_java()
conf = SparkConf().setAppName("testing").setMaster('ip-address')
sc = SparkContext.getOrCreate()
ExceptionTraceback (most recent call last)
<ipython-input-18-df37a24b7514> in <module>()
----> 1 sc = SparkContext.getOrCreate()
/usr/lib/spark/python/pyspark/context.pyc in getOrCreate(cls, conf)
361 with SparkContext._lock:
362 if SparkContext._active_spark_context is None:
--> 363 SparkContext(conf=conf or SparkConf())
364 return SparkContext._active_spark_context
365
/usr/lib/spark/python/pyspark/context.pyc in __init__(self, master, appName, sparkHome,
pyFiles, environment, batchSize, serializer, conf, gateway, jsc, profiler_cls)
127 " note this option will be removed in Spark 3.0")
128
--> 129 SparkContext._ensure_initialized(self, gateway=gateway, conf=conf)
130 try:
131 self._do_init(master, appName, sparkHome, pyFiles, environment, batchSize,
serializer,
/usr/lib/spark/python/pyspark/context.pyc in _ensure_initialized(cls, instance, gateway,
conf)
310 with SparkContext._lock:
311 if not SparkContext._gateway:
--> 312 SparkContext._gateway = gateway or launch_gateway(conf)
313 SparkContext._jvm = SparkContext._gateway.jvm
314
/usr/lib/spark/python/pyspark/java_gateway.pyc in launch_gateway(conf)
44 :return: a JVM gateway
45 """
---> 46 return _launch_gateway(conf)
47
48
/usr/lib/spark/python/pyspark/java_gateway.pyc in _launch_gateway(conf, insecure)
106
107 if not os.path.isfile(conn_info_file):
--> 108 raise Exception("Java gateway process exited before sending its port
number")
109
110 with open(conn_info_file, "rb") as info:
Exception: Java gateway process exited before sending its port number