我正在部署使用獨立羣集管理器的Spark Apache應用程序。我的架構採用了2個窗口機壹臺作爲主,而另一組作爲奴隸(工人)工人無法連接到Spark Apache中的主服務器
主:關於這一點我運行:\bin>spark-class org.apache.spark.deploy.master.Master
,這是什麼網站界面顯示:
從站:關於這一點我運行:\bin>spark-class org.apache.spark.deploy.worker.Worker spark://192.*.*.186:7077
這是什麼網絡界面顯示了:
的問題是,工作節點無法連接到主節點,並顯示以下錯誤:
17/09/26 16:05:17 INFO Worker: Connecting to master 192.*.*.186:7077...
17/09/26 16:05:22 WARN Worker: Failed to connect to master 192.*.*.186:7077
org.apache.spark.SparkException: Exception thrown in awaitResult:
at org.apache.spark.util.ThreadUtils$.awaitResult(ThreadUtils.scala:205)
at org.apache.spark.rpc.RpcTimeout.awaitResult(RpcTimeout.scala:75)
at org.apache.spark.rpc.RpcEnv.setupEndpointRefByURI(RpcEnv.scala:100)
at org.apache.spark.rpc.RpcEnv.setupEndpointRef(RpcEnv.scala:108)
at org.apache.spark.deploy.worker.Worker$$anonfun$org$apache$spark$deploy$worker$Worker$$tryRegisterAllMasters$1$$anon$1.run(Worker.scala:241)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.IOException: Failed to connect to /192.*.*.186:7077
at org.apache.spark.network.client.TransportClientFactory.createClient(TransportClientFactory.java:232)
at org.apache.spark.network.client.TransportClientFactory.createClient(TransportClientFactory.java:182)
at org.apache.spark.rpc.netty.NettyRpcEnv.createClient(NettyRpcEnv.scala:197)
at org.apache.spark.rpc.netty.Outbox$$anon$1.call(Outbox.scala:194)
at org.apache.spark.rpc.netty.Outbox$$anon$1.call(Outbox.scala:190)
... 4 more
Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection timed out: no further information: /192.*.*.186:7077
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:257)
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:291)
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:631)
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:566)
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:480)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:442)
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:131)
at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
... 1 more
如果知道兩臺機器都禁用了防火牆,並且我測試了它們之間的連接(使用nmap)並且一切正常,那麼可能出現此錯誤的情況!但使用telnet我收到此錯誤:Connecting To 192.*.*.186...Could not open connection to the host, on port 23: Connect failed
你嘗試使用telnet手動連接嗎? –
那是怎麼回事?它的用途是什麼? –
您必須激活telnet(請參閱https://social.technet.microsoft.com/wiki/contents/articles/910.windows-7-enabling-telnet-client.aspx),然後運行telnet 192。*。* .186 7077'。 –