Plugins busy and server down

[Manolo_Etec]

Good morning everyone

I Have an error that broke the server. I think it´s the busy plugins

it is working for some time, but since yesterday without making any changes, the server has started to fall

Thanks in advance

Code: Select all

Mar 11, 2013 2:51:35 PM org.apache.catalina.session.StandardManager start
SEVERE: Exception loading sessions from persistent storage
java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: net.stuff.servoy.plugins.busy.wicket.BusyWicketProvider
   at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
   at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1963)
   at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1887)
   at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1770)
   at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1346)
   at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1684)
   at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1340)
   at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1963)
   at java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:497)
   at org.apache.wicket.Component.readObject(Component.java:4753)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:616)
   at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:988)
   at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1865)
   at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1770)
   at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1346)
   at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1684)
   at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1340)
   at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1963)
   at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1887)
   at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1770)
   at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1346)
   at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1684)
   at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1340)
   at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1963)
   at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1887)
   at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1770)
   at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1346)
   at java.io.ObjectInputStream.readObject(ObjectInputStream.java:368)
   at org.apache.catalina.session.StandardSession.readObject(StandardSession.java:1485)
   at org.apache.catalina.session.StandardSession.readObjectData(StandardSession.java:987)
   at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:394)
   at org.apache.catalina.session.StandardManager.load(StandardManager.java:321)
   at org.apache.catalina.session.StandardManager.start(StandardManager.java:648)
   at org.apache.catalina.core.ContainerBase.setManager(ContainerBase.java:446)
   at org.apache.catalina.core.StandardContext.start(StandardContext.java:4630)
   at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799)
   at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779)
   at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601)
   at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1079)
   at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1002)
   at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:506)
   at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1315)
   at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:324)
   at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
   at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1061)
   at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)
   at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
   at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
   at org.apache.catalina.core.StandardService.start(StandardService.java:525)
   at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)
   at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:616)
   at com.servoy.j2db.server.main.WebServer.startWebServer(WebServer.java:47)
   at com.servoy.j2db.server.main.ApplicationServer.startWebServer(ApplicationServer.java:512)
   at com.servoy.j2db.server.main.ApplicationServer.main(ApplicationServer.java:507)
Caused by: java.io.NotSerializableException: net.stuff.servoy.plugins.busy.wicket.BusyWicketProvider
   at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1180)
   at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1528)
   at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1493)
   at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1416)
   at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174)
   at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1362)
   at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1170)
   at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1528)
   at java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:438)
   at org.apache.wicket.Component.writeObject(Component.java:4735)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:616)
   at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:959)
   at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1480)
   at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1416)
   at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174)
   at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1362)
   at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1170)
   at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1528)
   at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1493)
   at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1416)
   at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174)
   at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1362)
   at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1170)
   at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1528)
   at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1493)
   at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1416)
   at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174)
   at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:346)
   at org.apache.catalina.session.StandardSession.writeObject(StandardSession.java:1561)
   at org.apache.catalina.session.StandardSession.writeObjectData(StandardSession.java:1004)
   at org.apache.catalina.session.StandardManager.doUnload(StandardManager.java:528)
   at org.apache.catalina.session.StandardManager.unload(StandardManager.java:469)
   at org.apache.catalina.session.StandardManager.stop(StandardManager.java:678)
   at org.apache.catalina.core.StandardContext.stop(StandardContext.java:4875)
   at org.apache.catalina.core.ContainerBase.removeChild(ContainerBase.java:932)
   at org.apache.catalina.startup.HostConfig.undeployApps(HostConfig.java:1357)
   at org.apache.catalina.startup.HostConfig.stop(HostConfig.java:1328)
   at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:326)
   at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
   at org.apache.catalina.core.ContainerBase.stop(ContainerBase.java:1094)
   at org.apache.catalina.core.ContainerBase.stop(ContainerBase.java:1106)
   at org.apache.catalina.core.StandardEngine.stop(StandardEngine.java:468)
   at org.apache.catalina.core.StandardService.stop(StandardService.java:604)
   at org.apache.catalina.core.StandardServer.stop(StandardServer.java:788)
   at org.apache.catalina.startup.Catalina.stop(Catalina.java:662)
   at org.apache.catalina.startup.Catalina$CatalinaShutdownHook.run(Catalina.java:706)


[ptalbot]

That stack trace is happening when you restart, it is not the issue: what you see here is Tomcat complaining that it cannot reload a http session after restart, because one of the class that is part of the Busy plugin is not Serializable.
It doesn't really matter (you can ignore that, it happens all the time in Tomcat when you start as it tries to recreate sessions from its serialized storage).

So you need to look at the problem before the restart, is there any exception happening then?

[Manolo_Etec]

thanks Patrick

I've noticed that the server is falling. but says nothing before the fall.
I upgraded the server from 6.1.2 to 6.1.4
The problem pluging busy, now gone, but still falling. may be running 10 minutes or an hour, or just input the login.

Code: Select all

12/03/2013 10:57:42,876 WARN [pool-1-thread-1] org.hibernate.dialect.resolver.AbstractDialectResolver - Error executing solve [org.hibernate.dialect.resolver.StandardDialectResolver @ 4da59490]: null []
12/03/2013 11:33:43,388 WARN [pool-1-thread-1] org.hibernate.dialect.resolver.AbstractDialectResolver - Error executing solve [org.hibernate.dialect.resolver.StandardDialectResolver @ 572022b7]: null []


two error logs are consecutive . After 10:57 fall down the server, and when it turn on gave me the same error.

[ptalbot]

I told you that the plugin was not the cause.
That warning is a hibernate one, so your issue might be database related, or jdbc related...

[rgansevles]

Manolo_Etec,

So the server runs for 10 minutes, with clients connecting and selecting data ok and then this error appears?
It looks like an error in determining the hibernate dialect from the jdbc driver, only this happens usually immediately, not after 10 min.

Rob

[Manolo_Etec]

Thanks Rob and Patrick.

The error only appears when the server boots.

Code: Select all

12/03/2013 11:33:43,388 WARN [pool-1-thread-1] org.hibernate.dialect.resolver.AbstractDialectResolver - Error executing solve [org.hibernate.dialect.resolver.StandardDialectResolver @ 572022b7]: null []


and when it falls leaves no trace.

I have asked them to send me the server.log too, to see if I can find something else.