AUTO {ICICICARE#002-039-416}Antwort: PersistentManager with FileStore
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Re: Antwort: PersistentManager with FileStore
[EMAIL PROTECTED] typed the following on 08:56 28/01/2003 +0100 I want to store session information on filesystem so that it is possible for me to restart tomcat without loosing all sessioninformations. First of all, you don't need to use PersistentManager to do this - the default session manager in Tomcat does this already. PersistentManager is useful if you want to swap sessions temporarily to disk before they expire, so an active site can support more concurrent sessions using less memory, perhaps with very long session expiration times. To start tomcat as service with my runtime parameter I use an wrapper from Silver Egg Technology. Do you have the same problem when you run tomcat straight from the command line? INFO | jvm 1| 2003/01/24 12:42:31 | java.lang.NullPointerException INFO | jvm 1| 2003/01/24 12:42:31 | at org.apache.catalina.session.StoreBase.processExpires(StoreBase.java:293) INFO | jvm 1| 2003/01/24 12:42:31 | at org.apache.catalina.session.StoreBase.run(StoreBase.java:350) I've just combed over the source code, and I can't see what would cause this error. I can't reproduce it even by fiddling with the code a bit to simulate the failure of certain statements - they variable concerned shouldn't be able to reach this point with a null value. If this error only happens with your wrapper script, it must be doing something weird. Let us know what happens when you start tomcat using catalina.bat run. Kief -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Antwort: Re: Antwort: PersistentManager with FileStore
Hey Kief, thanks for your answer. I try without my wrapper and get also the Exception. I got: D:\tomcat\bincatalina run Using CATALINA_BASE: .. Using CATALINA_HOME: .. Using CATALINA_TMPDIR: ..\temp Using JAVA_HOME: d:\jdk1.3 Starting service kbhsrv03 Apache Tomcat/4.0.6 Starting service Tomcat-Apache Apache Tomcat/4.0.6 java.lang.NullPointerException at org.apache.catalina.session.StoreBase.processExpires(StoreBase.java:293) at org.apache.catalina.session.StoreBase.run(StoreBase.java:350) at java.lang.Thread.run(Thread.java:484) I comment all context except one for testing. The part in server.xml look like this: Context path=/test docBase=test debug=0 reloadable=true crossContext=true Logger className=org.apache.catalina.logger.FileLogger prefix=kbhsrv03_test_log. suffix=.txt timestamp=true/ Manager className= org.apache.catalina.session.PersistentManager debug=0 saveOnRestart=true maxActiveSessions=-1 minIdleSwap=-1 maxIdleSwap=-1 maxIdleBackup=-1 Store className= org.apache.catalina.session.FileStore/ /Manager /Context I have only one testservlet where only the HttpSession Object is created. After the first connect to the test servlet and maxima 60 Seconds I get the Exception. Why I use the PersistenManager? I have a good tomcatbook in german (I belife it?) and there is the information that I have to use at least the StandardManager with saveOnRestart=true to store all Sessions to recover on startup. And I have many Sessions with some big objects in my webapplication. I thought the problem is the interface Serializable with i implement, but I can reproduce the Except. with the simple test - servlet. Dietmar Kief Morris [EMAIL PROTECTED] am 28.01.2003 13:55:00 Bitte antworten an Tomcat Users List [EMAIL PROTECTED] An:Tomcat Users List [EMAIL PROTECTED] Kopie: Thema: Re: Antwort: PersistentManager with FileStore [EMAIL PROTECTED] typed the following on 08:56 28/01/2003 +0100 I want to store session information on filesystem so that it is possible for me to restart tomcat without loosing all sessioninformations. First of all, you don't need to use PersistentManager to do this - the default session manager in Tomcat does this already. PersistentManager is useful if you want to swap sessions temporarily to disk before they expire, so an active site can support more concurrent sessions using less memory, perhaps with very long session expiration times. To start tomcat as service with my runtime parameter I use an wrapper from Silver Egg Technology. Do you have the same problem when you run tomcat straight from the command line? INFO | jvm 1| 2003/01/24 12:42:31 | java.lang.NullPointerException INFO | jvm 1| 2003/01/24 12:42:31 | at org.apache.catalina.session.StoreBase.processExpires(StoreBase.java:293) INFO | jvm 1| 2003/01/24 12:42:31 | at org.apache.catalina.session.StoreBase.run(StoreBase.java:350) I've just combed over the source code, and I can't see what would cause this error. I can't reproduce it even by fiddling with the code a bit to simulate the failure of certain statements - they variable concerned shouldn't be able to reach this point with a null value. If this error only happens with your wrapper script, it must be doing something weird. Let us know what happens when you start tomcat using catalina.bat run. Kief -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: Antwort: Re: Antwort: PersistentManager with FileStore
[EMAIL PROTECTED] typed the following on 15:02 28/01/2003 +0100 I have only one testservlet where only the HttpSession Object is created. After the first connect to the test servlet and maxima 60 Seconds I get the Exception. This is strange, because your configuration shouldn't try to swap it out after 60 seconds - you would have to set maxIdleSwap=1 to make that happen. What happens if you use a fresh installation of tomcat 4.0.6 and configure the PersistentManager? If that runs fine, try adding components from the server you are having problems with one by one and seeing what happens. Also, if you shut your problem server down before 60 seconds, but after making a session, does it have any problems shutting down or restarting? Why I use the PersistenManager? I have a good tomcatbook in german (I belife it?) and there is the information that I have to use at least the StandardManager with saveOnRestart=true to store all Sessions to recover on startup. This is the default - if you start up a new installation of Tomcat without adding PersistentManager it saves the sessions when you stop tomcat. I just tried it with 4.0.6 to make sure. Kief -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Antwort: PersistentManager with FileStore
2nd attempt Is nobody useing this feature with tomcat and have some experience and want to give me some hint? Dietmar [EMAIL PROTECTED] am 24.01.2003 15:57:45 Bitte antworten an Tomcat Users List [EMAIL PROTECTED] An:[EMAIL PROTECTED] Kopie: Thema: PersistentManager with FileStore Hy, first sorry for my bad english! I use 4.0.6 / jdk1.3.1 / win32. I want to store session information on filesystem so that it is possible for me to restart tomcat without loosing all sessioninformations. To start tomcat as service with my runtime parameter I use an wrapper from Silver Egg Technology. In the log from the wrapper I can see follow entries. STATUS | wrapper | 2003/01/24 12:41:28 | -- Wrapper Started as Service STATUS | wrapper | 2003/01/24 12:41:28 | Launching a JVM... INFO | jvm 1| 2003/01/24 12:41:29 | Wrapper (Version 2.2.6) INFO | jvm 1| 2003/01/24 12:41:29 | Copyright 2000, 2001 Silver Egg Technology, Inc. INFO | jvm 1| 2003/01/24 12:41:29 | All rights reserved. INFO | jvm 1| 2003/01/24 12:41:29 | INFO | jvm 1| 2003/01/24 12:41:30 | Starting service kbhsrv03 INFO | jvm 1| 2003/01/24 12:41:30 | Apache Tomcat/4.0.6 INFO | jvm 1| 2003/01/24 12:41:35 | Starting service Tomcat-Apache INFO | jvm 1| 2003/01/24 12:41:35 | Apache Tomcat/4.0.6 INFO | jvm 1| 2003/01/24 12:42:31 | java.lang.NullPointerException INFO | jvm 1| 2003/01/24 12:42:31 | at org.apache.catalina.session.StoreBase.processExpires(StoreBase.java:293) INFO | jvm 1| 2003/01/24 12:42:31 | at org.apache.catalina.session.StoreBase.run(StoreBase.java:350) INFO | jvm 1| 2003/01/24 12:42:31 | at java.lang.Thread.run(Thread.java:484) I config the persistentmanager in the context like this: Manager className= org.apache.catalina.session.PersistentManager debug=0 saveOnRestart=true maxActiveSessions=-1 minIdleSwap=-1 maxIdleSwap=-1 maxIdleBackup=-1 Store className= org.apache.catalina.session.FileStore/ /Manager I build a simple servlet to isolate the problem and I always get the error on first try from tomcat by save the sessions to filesystem. About 60 secondes after startup (default). Have someone a tip. Is my configuration wrong. I try some default parameter to change. regards Dietmar -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
