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SeldonIO / seldon-server

Machine Learning Platform and Recommendation Engine built on Kubernetes
https://www.seldon.io/
Apache License 2.0
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Could not load [org.apache.zookeeper.server.ZooTrace] #42

Closed Rocknpools closed 7 years ago

Rocknpools commented 7 years ago

Hi everyone. I got this error while deploying seldon-server 1.3.11 outside Kubernetes.

This is not the first time i deploy seldon outside kubernetes and i never had problem.

Can someone help me?

17-Feb-2017 11:13:45.366 INFO [localhost-startStop-2] org.apache.catalina.startup.HostConfig.deployWAR Deploying web application archive /home/vagrant/apps/tomcat/webapps/seldonversion.war 17-Feb-2017 11:14:00.873 SEVERE [localhost-startStop-2] org.apache.catalina.core.StandardContext.startInternal One or more listeners failed to start. Full details will be found in the appropriate container log file 17-Feb-2017 11:14:00.874 SEVERE [localhost-startStop-2] org.apache.catalina.core.StandardContext.startInternal Context [/seldonversion] startup failed due to previous errors 17-Feb-2017 11:14:00.950 WARNING [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [seldonversion] appears to have started a thread named [localhost-startStop-2-SendThread(172.17.0.4:2181)] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread: java.lang.Thread.sleep(Native Method) org.apache.zookeeper.ClientCnxnSocketNIO.cleanup(ClientCnxnSocketNIO.java:219) org.apache.zookeeper.ClientCnxn$SendThread.cleanup(ClientCnxn.java:1157) org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1109) 17-Feb-2017 11:14:00.959 INFO [localhost-startStop-2] org.apache.catalina.startup.HostConfig.deployWAR Deployment of web application archive /home/vagrant/apps/tomcat/webapps/seldonversion.war has finished in 15,592 ms 17-Feb-2017 11:14:01.037 INFO [localhost-startStop-2-SendThread(172.17.0.4:2181)] org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading Illegal access: this web application instance has been stopped already. Could not load [org.apache.zookeeper.server.ZooTrace]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access. java.lang.IllegalStateException: Illegal access: this web application instance has been stopped already. Could not load [org.apache.zookeeper.server.ZooTrace]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access. at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading(WebappClassLoaderBase.java:1353) at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForClassLoading(WebappClassLoaderBase.java:1341) at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1206) at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1167) at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1115)

ukclivecox commented 7 years ago

This generally means Zookeeper was not running or the server could not connect to Zookeeper.

Rocknpools commented 7 years ago

This is strange because zookeeper is running, i'm able to use the pyseldon shell.

ukclivecox commented 7 years ago

Ok then it means there was another exception at startup that meant the server was not able to start. Is there any other exception in the api.log earlier?

Rocknpools commented 7 years ago

should i initialize memcached or doing something else with the pyseldon shell before the deploying step?

ukclivecox commented 7 years ago

You should certainly have the other components needed by the server running. So memcached and MySQL database.