无法启动程序 运行 program_run

Question

错误来源：

io.cdap.cdap.internal.app.runtime.distributed.remote.RemoteExecutionTwillRunnerService#543-runtime-startup-1

错误信息：

java.io.IOException: com.jcraft.jsch.JSchException: java.net.ConnectException: Connection timed out (Connection timed out) at io.cdap.cdap.common.ssh.DefaultSSHSession.(DefaultSSHSession.java:82) ~[na:na] at io.cdap.cdap.internal.app.runtime.distributed.remote.RemoteExecutionTwillPreparer.lambda$start[=13=](RemoteExecutionTwillPreparer.java:429) ~[na:na] at io.cdap.cdap.internal.app.runtime.distributed.remote.RemoteExecutionTwillRunnerService$ControllerFactory.lambda$create[=13=](RemoteExecutionTwillRunnerService.java:519) ~[na:na] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[na:1.8.0_212] at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[na:1.8.0_212] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_212] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_212] at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_212] Caused by: com.jcraft.jsch.JSchException: java.net.ConnectException: Connection timed out (Connection timed out) at com.jcraft.jsch.Util.createSocket(Util.java:349) ~[com.jcraft.jsch-0.1.54.jar:na] at com.jcraft.jsch.Session.connect(Session.java:215) ~[com.jcraft.jsch-0.1.54.jar:na] at com.jcraft.jsch.Session.connect(Session.java:183) ~[com.jcraft.jsch-0.1.54.jar:na] at io.cdap.cdap.common.ssh.DefaultSSHSession.(DefaultSSHSession.java:79) ~[na:na] ... 7 common frames omitted Caused by: java.net.ConnectException: Connection timed out (Connection timed out) at java.net.PlainSocketImpl.socketConnect(Native Method) ~[na:1.8.0_212] at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) ~[na:1.8.0_212] at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) ~[na:1.8.0_212] at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) ~[na:1.8.0_212] at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[na:1.8.0_212] at java.net.Socket.connect(Socket.java:589) ~[na:1.8.0_212] at java.net.Socket.connect(Socket.java:538) ~[na:1.8.0_212] at java.net.Socket.(Socket.java:434) ~[na:1.8.0_212] at java.net.Socket.(Socket.java:211) ~[na:1.8.0_212] at com.jcraft.jsch.Util.createSocket(Util.java:343) ~[com.jcraft.jsch-0.1.54.jar:na] ... 10 common frames omitted

Answer 1

当 CDAP 在程序开始时尝试通过 ssh 连接到远程集群时，这看起来像是一个问题 运行。这通常是由于防火墙阻止了进入端口 22 的流量，可以通过创建允许它的防火墙规则来解决。

请参阅 https://cloud.google.com/data-fusion/docs/how-to/create-instance#before_you_begin 了解有关为确保 Data Fusion 实例具有所需访问权而应采取的步骤的详细信息。