Question

我正在尝试使用Spark 2.0.1在8台RHEL 7.3 x86机器上设置8节点群集。 start-master.sh很好：

pyautogui.doubleClick(x=300, y=300, interval=0.25)

但是当我尝试使用start-slaves.sh来提升工人时，我在工人的日志中看到的是：

Spark Command: /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.102-4.b14.el7.x86_64/jre/bin/java -cp /usr/local/bin/spark-2.0.1-bin-hadoop2.7/conf/:/usr/local/bin/spark-2.0.1-bin-hadoop2.7/jars/* -Xmx1g org.apache.spark.deploy.master.Master --host lambda.foo.net --port 7077 --webui-port 8080
========================================
Using Spark's default log4j profile: org/apache/spark/log4j-defaults.properties
16/12/08 04:26:46 INFO Master: Started daemon with process name: 22181@lambda.foo.net
16/12/08 04:26:46 INFO SignalUtils: Registered signal handler for TERM
16/12/08 04:26:46 INFO SignalUtils: Registered signal handler for HUP
16/12/08 04:26:46 INFO SignalUtils: Registered signal handler for INT
16/12/08 04:26:46 WARN NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
16/12/08 04:26:46 INFO SecurityManager: Changing view acls to: root
16/12/08 04:26:46 INFO SecurityManager: Changing modify acls to: root
16/12/08 04:26:46 INFO SecurityManager: Changing view acls groups to:
16/12/08 04:26:46 INFO SecurityManager: Changing modify acls groups to:
16/12/08 04:26:46 INFO SecurityManager: SecurityManager: authentication disabled; ui acls disabled; users  with view permissions: Set(root); groups with view permissions: Set(); users  with modify permissions: Set(root); groups with modify permissions: Set()
16/12/08 04:26:46 INFO Utils: Successfully started service 'sparkMaster' on port 7077.
16/12/08 04:26:46 INFO Master: Starting Spark master at spark://lambda.foo.net:7077
16/12/08 04:26:46 INFO Master: Running Spark version 2.0.1
16/12/08 04:26:46 INFO Utils: Successfully started service 'MasterUI' on port 8080.
16/12/08 04:26:46 INFO MasterWebUI: Bound MasterWebUI to 0.0.0.0, and started at http://19.341.11.212:8080
16/12/08 04:26:46 INFO Utils: Successfully started service on port 6066.
16/12/08 04:26:46 INFO StandaloneRestServer: Started REST server for submitting applications on port 6066
16/12/08 04:26:46 INFO Master: I have been elected leader! New state: ALIVE

所以它说“没有主持人的路线”。但我可以成功地从工作节点ping主服务器，以及从工作服务器到主节点的ssh。

为什么火花说“没有主持人的路线”？

Answer 1

问题解决了：防火墙阻止了数据包。

Apache Spark：worker无法连接到master，但可以ping和ssh从worker到master

1 个答案: