Re: Wicket web site down with a few hits
Did you make sure that when using c3p0 it actually was enabled and that you used the validation query? and set this property: http://stackoverflow.com/questions/1652676/hibernate-c3p0-broken-pipe property name=hibernate.connection.provider_classorg.hibernate.connection.C3P0ConnectionProvider/property Anyways as Martin says BoneCP are nicer, although some time ago it did not play that nice together with HSQL (it's probably better now).. 2011/1/7 LucHub luca.abb...@luchub.com Hi Martin, thanks for you suggestion. I'll make more test in this direction. Right know I temporaly solved the problem avoiding the use of the c3p0 library and having a thread that every hour keep the connection awake. Of course I'll do test to optimize the app based on your suggestion. Thanks a lot for all your precious help. -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/Wicket-web-site-down-with-a-few-hits-tp3174117p3178918.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Wicket web site down with a few hits
Hi Martin, thanks for you suggestion. I'll make more test in this direction. Right know I temporaly solved the problem avoiding the use of the c3p0 library and having a thread that every hour keep the connection awake. Of course I'll do test to optimize the app based on your suggestion. Thanks a lot for all your precious help. -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/Wicket-web-site-down-with-a-few-hits-tp3174117p3178918.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Wicket web site down with a few hits
c3p0 and other connection pools are pretty much deprecated with hibernate 3.6 (as we discovered). com.jolbox.bonecp is a competent replacement. Martijn On Fri, Jan 7, 2011 at 11:42 AM, LucHub luca.abb...@luchub.com wrote: Hi Martin, thanks for you suggestion. I'll make more test in this direction. Right know I temporaly solved the problem avoiding the use of the c3p0 library and having a thread that every hour keep the connection awake. Of course I'll do test to optimize the app based on your suggestion. Thanks a lot for all your precious help. -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/Wicket-web-site-down-with-a-few-hits-tp3174117p3178918.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org -- Become a Wicket expert, learn from the best: http://wicketinaction.com - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Wicket web site down with a few hits
Hi, I tried to kill the process but I found nothing of strange. Right now I think that the problem is probably solved. I throw away a library that I used together with Hibernate (the c3p0 library) that I put ther essentially for autoReconnection problems of the JDBC mysql driver. Avoiding this library, the app seems to pass the load stress test. More info as I make more test. Thanks to all. -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/Wicket-web-site-down-with-a-few-hits-tp3174117p3177253.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Wicket web site down with a few hits
it sounds like you were leaking DB connections Thread dump easily will show you this problem. You'll see threads trying to acquire a DB connection and will wait until some of the previous acquired connections is returned to the pool. On Thu, Jan 6, 2011 at 12:27 PM, LucHub luca.abb...@luchub.com wrote: Hi, I tried to kill the process but I found nothing of strange. Right now I think that the problem is probably solved. I throw away a library that I used together with Hibernate (the c3p0 library) that I put ther essentially for autoReconnection problems of the JDBC mysql driver. Avoiding this library, the app seems to pass the load stress test. More info as I make more test. Thanks to all. -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/Wicket-web-site-down-with-a-few-hits-tp3174117p3177253.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Wicket web site down with a few hits
Hi Martin, What do you exactly mean for dump the threads? I am almost a newbie, I cannot find any document that examplin this. I made a few more test logging Wicket. To have the web site going down I need a few hits (close each other) on a bookmarkablepagelink. Here ( http://www.luchub.com/temp/info.txt http://www.luchub.com/temp/info.txt ) is the log at the INFO level just as an example. After this, any other hit of the link doesn't produce any row. Here I link a debug level log of a 'pretty much the same' situation ( http://www.luchub.com/temp/example.txt http://www.luchub.com/temp/example.txt ) Thanks in advance -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/Wicket-web-site-down-with-a-few-hits-tp3174117p3175105.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Wicket web site down with a few hits
Hi, thanks for the reply. Honestly I read a little bit around and using WicketServlet instead of wicketFilter is a kind of not reccomended. I would like to go for teh filter way, but thanks a lot for teh reply. Part of the reason is that I think that is impossible that a wicket app goes down because of 20 hits close each other. I'm wrong somewhere and I need you help gurus :-) If you need any other information please ask. Luca -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/Wicket-web-site-down-with-a-few-hits-tp3174117p3175117.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Wicket web site down with a few hits
If you use some kind of Unix then run: kill -3 process id of tomcat/jetty/...) This will dump the threads' stack traces in the process standard out (somewhere in the log files). This way you can see whether there are threads waiting for something. Making 20 requests and stopping responding could mean that your application/setup leaks connections and at some point the web server stops responding to new clients. On Wed, Jan 5, 2011 at 10:41 AM, LucHub luca.abb...@luchub.com wrote: Hi Martin, What do you exactly mean for dump the threads? I am almost a newbie, I cannot find any document that examplin this. I made a few more test logging Wicket. To have the web site going down I need a few hits (close each other) on a bookmarkablepagelink. Here ( http://www.luchub.com/temp/info.txt http://www.luchub.com/temp/info.txt ) is the log at the INFO level just as an example. After this, any other hit of the link doesn't produce any row. Here I link a debug level log of a 'pretty much the same' situation ( http://www.luchub.com/temp/example.txt http://www.luchub.com/temp/example.txt ) Thanks in advance -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/Wicket-web-site-down-with-a-few-hits-tp3174117p3175105.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Wicket web site down with a few hits
Any indications what exactly is the problem ? Anything in the logs? Any jvm crashes? On Tue, Jan 4, 2011 at 7:38 PM, LucHub luca.abb...@luchub.com wrote: Hi all, I recently created a wicket 1.4.12 web site and I deployed it on Apache Tomcat 7 on Ubuntu Server. What happen is that if I hit quickly 2 different links on the menu the web site sometime goes down. I cannot access the website also from other computers. Very basic configuration on the web.xml, with only the filter set. The server is an AWS micro instance, normally I have at least 100 MB of free memory and a very low CPU consuption. There is any special setting for deployment of a wicket web applicaiton? Thanks. -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/Wicket-web-site-down-with-a-few-hits-tp3174117p3174117.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Wicket web site down with a few hits
Hi, thank you for the fast reply, Nothing strange from tomcat logs, also the server is not out of CPU or memory. I still have to enable wicket logs and check with a non Hibernate app (i omitted I'm using Hibernate) I'll post. Thanks again -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/Wicket-web-site-down-with-a-few-hits-tp3174117p3174316.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Wicket web site down with a few hits
dump the threads maybe there is a deadlock On Tue, Jan 4, 2011 at 9:25 PM, LucHub luca.abb...@luchub.com wrote: Hi, thank you for the fast reply, Nothing strange from tomcat logs, also the server is not out of CPU or memory. I still have to enable wicket logs and check with a non Hibernate app (i omitted I'm using Hibernate) I'll post. Thanks again -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/Wicket-web-site-down-with-a-few-hits-tp3174117p3174316.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Wicket web site down with a few hits
Just a hunchtry WicketServlet instead of WicketFilter (in web.xml)... From: LucHub luca.abb...@luchub.com To: users@wicket.apache.org Date: 01/04/2011 03:26 PM Subject:Re: Wicket web site down with a few hits Hi, thank you for the fast reply, Nothing strange from tomcat logs, also the server is not out of CPU or memory. I still have to enable wicket logs and check with a non Hibernate app (i omitted I'm using Hibernate) I'll post. Thanks again -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/Wicket-web-site-down-with-a-few-hits-tp3174117p3174316.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org Notice: This communication, including any attachments, is intended solely for the use of the individual or entity to which it is addressed. This communication may contain information that is protected from disclosure under State and/or Federal law. Please notify the sender immediately if you have received this communication in error and delete this email from your system. If you are not the intended recipient, you are requested not to disclose, copy, distribute or take any action in reliance on the contents of this information.
