Good night, our Knime service on AWS is UP, however in the execution of processes it presents the error:
31-Jan-2020 16:46:16.805 SEVERE [localhost-startStop-1] com.knime.enterprise.server.application.KNIMEServerApplication.initializeServices Could not prestart executor: RMI executor could not be started, see log file for details
com.knime.enterprise.utility.ExecutorException: RMI executor could not be started, see log file for details
at com.knime.enterprise.server.executor.rmi.RMIExecutorImpl.reportStartupError(RMIExecutorImpl.java:420)
at com.knime.enterprise.server.executor.rmi.RMIExecutorImpl.startSlave(RMIExecutorImpl.java:356)
at com.knime.enterprise.server.executor.rmi.RMIExecutorImpl.(RMIExecutorImpl.java:224)
at com.knime.enterprise.server.executor.rmi.RMIExecutorManagerImpl.startNewRMI(RMIExecutorManagerImpl.java:307)
at com.knime.enterprise.server.executor.rmi.RMIExecutorManagerImpl.startNewRMI(RMIExecutorManagerImpl.java:325)
at com.knime.enterprise.server.executor.rmi.RMIExecutorManagerImpl.startNewRMI(RMIExecutorManagerImpl.java:325)
at com.knime.enterprise.server.executor.rmi.RMIExecutorManagerImpl.getExecutorInstance(RMIExecutorManagerImpl.java:384)
at com.knime.enterprise.server.executor.rmi.RMIExecutorManagerImpl.getExecutorInstance(RMIExecutorManagerImpl.java:63)
at com.knime.enterprise.server.application.KNIMEServerApplication.initializeServices(KNIMEServerApplication.java:324)
at com.knime.enterprise.server.application.KNIMEServerApplication.start(KNIMEServerApplication.java:134)
at com.knime.enterprise.war.ServerInitListener.contextInitialized(ServerInitListener.java:74)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4792)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5256)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:754)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:730)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:629)
at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1839)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Hi @fsborges,
What is your KNIME Server and KNIME Executor version?
Check this page and make sure your KNIME Server version matches the Executor.
So, your KNIME Executor should be 3.6.x
Can you make sure about that?
Or you can install/update to a newer version.
How do I view a version of my executor?
What would be the procedure for updating it?
Can you check what is your version of Java? This sounds like a bug related to the Java update.
My Java version is 1.8.0_242:
java -version
openjdk version “1.8.0_242”
OpenJDK Runtime Environment (build 1.8.0_242-8u242-b08-0ubuntu3~16.04-b08)
OpenJDK 64-Bit Server VM (build 25.242-b08, mixed mode)
Hi @fsborges
we currently have a problem with this Java Release, we are working on a fix and will release this as soon as possible.
Your current workaround would be to downgrade to a older Java Version. More details you can find here
Best, Iris
Good morning
I performed the JAVA downgrade from 1.8.0_242 to 1.8.0_162 and the problem was solved.
Thanks for attention.
Have a nice day.
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