Re: Unable to get Tomcat 7 to work in Eclipse
On Tue, Jul 20, 2010 at 8:44 PM, Konstantin Kolinko
knst.koli...@gmail.comwrote:
2010/7/21 Austin Shelton ashelt...@gmail.com:
Bizarre. I will keep looking for logs that might tell me something. I'll
keep everyone posted on my efforts, feeble though they may be :-)
Maybe you do not have a logging.properties file.
There should be -Djava.util.logging.manager and
-Djava.util.logging.config.file being set to appropriate values in
the launch configuration for Tomcat for the logging to work properly.
What would be reasonable values for these parameters?
By the way,
http://wiki.eclipse.org/WTP_Tomcat_FAQ
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting
property 'source' to 'org.eclipse.jst.jee.server:HelloWorldServlet' did
not
find a matching property.
It is just a warning. That extra attribute (that was set by Eclipse
for whatever reason) is ignored.
Best regards,
Konstantin Kolinko
-
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isapi_redirect.dll fail in SSO on high cpu load
Hi, Currently using Tomcat 5.5 and isapi_redirect.dll 1.2.14 in IIS 6.0 Configure with IIS integrated authentication for SSO. Notice that under high cpu load in the server, 100% util, the website prompt for authentication. When the cpu load subsided, the SSO is working. Any ideas why it prompt for authentication under heavy cpu load? thank you yun feng, chua
Re: isapi_redirect.dll fail in SSO on high cpu load
Yun Feng Chua wrote: Hi, Currently using Tomcat 5.5 and isapi_redirect.dll 1.2.14 (that is old, the current version is 1.2.30 or so) in IIS 6.0 Configure with IIS integrated authentication for SSO. So, it is IIS doing the authentication with the browser, right ? Notice that under high cpu load in the server, 100% util, the website prompt for authentication. When the cpu load subsided, the SSO is working. Any ideas why it prompt for authentication under heavy cpu load? Not per se, but this does not sound like a Tomcat or mod_jk/isapi_redirect problem. If IIS is doing the Windows Integrated Authentication (otherwise known as NTLM), this is a dialog between the browser, the IIS server, and some domain controller (to check the user's/browser's credentials). mod_jk/isapi_redirect and Tomcat do not participate in that dialog. Only when the dialog is succesful, does IIS pass the request to mod_jk/isapi_redirect (with a user-id), and from there to Tomcat. At first sight, it looks as if, under heavy IIS load, IIS may have problems achieving the NTLM user authentication (e.g., trouble contacting the domain controller ?). If that is the case, it will not be able to authenticate the browser's credentials, and will send back a 401 error to the browser. That is when the browser pops up a login dialog. When you say the website prompt for authentication, you mean that the browser shows the built-in pop-up login window, right ? Tip: with IE, you can get an add-on called Fiddler2, which captures and shows the exact dialog between browser and server. That is useful for this kind of problem. Theoretically, you could also set the log level of mod_jk/isapi_redirect to debug, and see that the request do not even reach mod_jk/isapi_redirect or Tomcat. But because this happens under heavy load, that would give you /tons/ of output to check, and would not be very usable in this case. Specially since you are looking for request that /do not/ reach Tomcat. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: isapi_redirect.dll fail in SSO on high cpu load
Thank for the reply... Does that mean i should start looking at the IIS for the failed authentication? Date: Wed, 21 Jul 2010 09:45:57 +0200 From: a...@ice-sa.com To: users@tomcat.apache.org Subject: Re: isapi_redirect.dll fail in SSO on high cpu load Yun Feng Chua wrote: Hi, Currently using Tomcat 5.5 and isapi_redirect.dll 1.2.14 (that is old, the current version is 1.2.30 or so) in IIS 6.0 Configure with IIS integrated authentication for SSO. So, it is IIS doing the authentication with the browser, right ? Yes, IIS is doing the NTLM authentication. Notice that under high cpu load in the server, 100% util, the website prompt for authentication. When the cpu load subsided, the SSO is working. Any ideas why it prompt for authentication under heavy cpu load? Not per se, but this does not sound like a Tomcat or mod_jk/isapi_redirect problem. If IIS is doing the Windows Integrated Authentication (otherwise known as NTLM), this is a dialog between the browser, the IIS server, and some domain controller (to check the user's/browser's credentials). mod_jk/isapi_redirect and Tomcat do not participate in that dialog. Only when the dialog is succesful, does IIS pass the request to mod_jk/isapi_redirect (with a user-id), and from there to Tomcat. At first sight, it looks as if, under heavy IIS load, IIS may have problems achieving the NTLM user authentication (e.g., trouble contacting the domain controller ?). If that is the case, it will not be able to authenticate the browser's credentials, and will send back a 401 error to the browser. That is when the browser pops up a login dialog. When you say the website prompt for authentication, you mean that the browser shows the built-in pop-up login window, right ? Yes, that is the pop-up login window. Tip: with IE, you can get an add-on called Fiddler2, which captures and shows the exact dialog between browser and server. That is useful for this kind of problem. Theoretically, you could also set the log level of mod_jk/isapi_redirect to debug, and see that the request do not even reach mod_jk/isapi_redirect or Tomcat. But because this happens under heavy load, that would give you /tons/ of output to check, and would not be very usable in this case. Specially since you are looking for request that /do not/ reach Tomcat. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: isapi_redirect.dll fail in SSO on high cpu load
Yun Feng Chua wrote: Thank for the reply... Does that mean i should start looking at the IIS for the failed authentication? In a nutshell, yes. I would start by simplifying the test case : create a static html page under IIS, and make it covered by the authentication, so that from the browser you can just call up that page to see the problem, without involving isapi_redirect and Tomcat. But then, it will get more complicated, because you will probably need to have some network analysis tool (wireshark e.g.), to trace what is going on between the IIS server, and the domain controller. If you are not a specialist yourself, I suggest you get help from one (Windows network sysadmin type), because this can be quite complex. It might be worth first looking into the Event Logs of the IIS machine, to see if anything shows up about these missed authentications. Now, just taking a step back for a second : in your initial post, you mention that this happens when the CPU of your IIS machine is loaded at 100%. This is probably a sign that the load you are imposing on it is too big for the machine. Maybe the solution is just to get a bigger/faster machine (or add some RAM to it), no ? If that is not possible, you can always move Tomcat to another machine, and adapt the configuration of isapi_redirect in function of that. There is no applications change needed for that. Date: Wed, 21 Jul 2010 09:45:57 +0200 From: a...@ice-sa.com To: users@tomcat.apache.org Subject: Re: isapi_redirect.dll fail in SSO on high cpu load Yun Feng Chua wrote: Hi, Currently using Tomcat 5.5 and isapi_redirect.dll 1.2.14 (that is old, the current version is 1.2.30 or so) in IIS 6.0 Configure with IIS integrated authentication for SSO. So, it is IIS doing the authentication with the browser, right ? Yes, IIS is doing the NTLM authentication. Notice that under high cpu load in the server, 100% util, the website prompt for authentication. When the cpu load subsided, the SSO is working. Any ideas why it prompt for authentication under heavy cpu load? Not per se, but this does not sound like a Tomcat or mod_jk/isapi_redirect problem. If IIS is doing the Windows Integrated Authentication (otherwise known as NTLM), this is a dialog between the browser, the IIS server, and some domain controller (to check the user's/browser's credentials). mod_jk/isapi_redirect and Tomcat do not participate in that dialog. Only when the dialog is succesful, does IIS pass the request to mod_jk/isapi_redirect (with a user-id), and from there to Tomcat. At first sight, it looks as if, under heavy IIS load, IIS may have problems achieving the NTLM user authentication (e.g., trouble contacting the domain controller ?). If that is the case, it will not be able to authenticate the browser's credentials, and will send back a 401 error to the browser. That is when the browser pops up a login dialog. When you say the website prompt for authentication, you mean that the browser shows the built-in pop-up login window, right ? Yes, that is the pop-up login window. Tip: with IE, you can get an add-on called Fiddler2, which captures and shows the exact dialog between browser and server. That is useful for this kind of problem. Theoretically, you could also set the log level of mod_jk/isapi_redirect to debug, and see that the request do not even reach mod_jk/isapi_redirect or Tomcat. But because this happens under heavy load, that would give you /tons/ of output to check, and would not be very usable in this case. Specially since you are looking for request that /do not/ reach Tomcat. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: isapi_redirect.dll fail in SSO on high cpu load
I am going to guess that some policy in Windows rejects the high volume of logons, too many connections or something of that kind. It's most likely not a Tomcat problem. Andre suggestions are pretty good in terms of isolating it. I would start by stressing IIS alone with a static page in it. Since you're running on Windows, you might as well get rid of IIS and replace it with a Waffle filter - http://waffle.codeplex.com. dB. @ dblock.org Moscow|Geneva|Seattle|New York -Original Message- From: Yun Feng Chua [mailto:yf_c...@hotmail.com] Sent: Wednesday, July 21, 2010 3:07 AM To: users@tomcat.apache.org Subject: isapi_redirect.dll fail in SSO on high cpu load Hi, Currently using Tomcat 5.5 and isapi_redirect.dll 1.2.14 in IIS 6.0 Configure with IIS integrated authentication for SSO. Notice that under high cpu load in the server, 100% util, the website prompt for authentication. When the cpu load subsided, the SSO is working. Any ideas why it prompt for authentication under heavy cpu load? thank you yun feng, chua - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: how to embed tomcat 7
I have a pet project using an embedded tomcat. It's written in ruby but the code is pretty straightforward to follow: http://github.com/calavera/trinidad The class that configures the tomcat instance is this: http://github.com/calavera/trinidad/blob/master/lib/trinidad/server.rb Cheers On Sat, Jul 17, 2010 at 12:51 PM, Mark Thomas ma...@apache.org wrote: On 16/07/2010 22:09, Caldarale, Charles R wrote: From: Ikonne, Ike [mailto:ike_iko...@stercomm.com] Subject: how to embed tomcat 7 can someone point to me on how I could go about embedding Tomcat into my application. I don't think anyone has properly documented how to do this, but the first set of APIs you need are here: http://tomcat.apache.org/tomcat-7.0-doc/api/org/apache/catalina/startup/Tomcat.html And take a look at the unit tests in Tomcat 7 for numerous examples. Mark - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Using catalina-ws on Tomcat 6 with JAX-WS
h...@all I'd like to know if it possible to run JAX-WS webservice clients on Tomcat 6 using the catalina-ws extensions. I took a look at the sources of catalina-ws, basically the ServiceRefFactory.java, and I saw that is using the javax.xml.rpc.ServiceFactory, so using JAX-RPC. I want to use JAX-WS for my application, so it is possible somehow? Thanks in advance Mirko
Re: Self-Contained Web Applications
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Chuck, On 7/20/2010 11:14 PM, Caldarale, Charles R wrote: From: Christopher Schultz [mailto:ch...@christopherschultz.net] Subject: Re: Self-Contained Web Applications Well, having to include commons-dbcp is a bit of an implementation detail, here. I should be able to include only my own JDBC driver and have Tomcat figure out that commons-dbcp should be available elsewhere (say, in the lib directory). But now you're asking commons-dbcp classes (loaded by the common classloader) to look _downwards_ in the classloader hierarchy to find the JDBC driver they're using for the connections. I don't think that's going to happen - ever. Obviously, the classes themselves have no knowledge of the class loading hierarchy. As long as the WebappClassLoader is the context ClassLoader for the thread that creates the DataSource, all should be well. Am I missing something tremendous, here? - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkxHCkQACgkQ9CaO5/Lv0PALxQCeLCCNOSBJWPaeqoq1aF3RI27N 3GAAnjm3UvsCVUyYee4w6x3CBxMznrWb =e5Sm -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: How to map web app with different root paths?
binvDevG1QCH1.bin Description: PGP/MIME version identification
RE: How to map web app with different root paths?
From: john.rana...@thomsonreuters.com [mailto:john.rana...@thomsonreuters.com] Subject: How to map web app with different root paths? This: http://server.com/NASApp/DealSearch/DoSomethingServlet http://server.com/NASApp/DealSearch/DoSomethingServlet Needs to map to this: http://server.com/DealsWeb/DoSomethingServlet http://server.com/DealsWeb/DoSomethingServlet Use the URL rewrite filter under either a dummy NASApp webapp or the ROOT webapp to forward or redirect the request to the desired URL. http://www.tuckey.org/urlrewrite/ - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: How to map web app with different root paths?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 John, (Let's try this again.) On 7/21/2010 11:13 AM, john.rana...@thomsonreuters.com wrote: Our application has a Context Root of DealsWeb. I need to be able to map a different root path to this web application. I feel like we just covered this in the last 24 hours or so. I can't seem to find the thread, though. For example: This: http://server.com/NASApp/DealSearch/DoSomethingServlet Needs to map to this: http://server.com/DealsWeb/DoSomethingServlet I know how to use path mappings in one application but not across. How do you do it in a single application? If you use servlet-mapping, then you're right: you can't map across webapps. You can set up a fictional context, say, NASApp, that contains nothing but redirects to the real app. You can use http://www.tuckey.org/urlrewrite/ to map URL spaces from one to another. Maybe something like this: rule from/DealSearch/(.*)/from to type=redirect/DealsWeb/$1/to /rule Note that the NASApp isn't mentioned because it's the context name. If you have multiple contexts to map in this way, you could set up one webapp/context for each of them, as above, or you could deploy a ROOT webapp that intercepts them all. In that case, you'd need: rule from/NASApp/DealSearch/(.*)/from to type=redirect/DealsWeb/$1/to /rule rule from/SomeOtherName/DealSearch/(.*)/from to type=redirect/DealsWeb/$1/to /rule etc. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkxHPQ8ACgkQ9CaO5/Lv0PAUPwCgtZ17sNvrNvucm/sSGZg1exhj rm4AoJVFu5qIvgy8kHaLwpYRzW+PiywT =Q/kD -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: How to map web app with different root paths?
Apart from the answers already provided by Chuck and Christopher, I wonder if a FAQ about proxying, URL abstraction, forwarding, redirecting etc.. and their differences would not be useful ? This kind of question seems to come so often that it would save time in the end if there was just a link to point to. Quick and dirty : - a redirect is when the server sends a HTTP response to the browser saying sorry, the URL you requested is wrong, but the right one is *here* (with the correct URL). The browser then (without even informing the user) immediately makes a new request to this new URL. Hint : the browser's URL bar, in that case, will show the new URL. Advantage : the browser will also discard the old URL from its cache and history, and cache the new one instead. The user may even notice, and request the correct URL right away the next time. Inconvenient : there is more traffic, because there is one request/response exchange for nothing (original request - 302 response from server - new request from browser - server response to correct request) - a forward (and also the concept of URL abstraction) is when the server silently rewrites the URL requested by the user, so that it will be processed by a different webapp (or return a different static document) than the one that would appear to be implied by the original request URL. Hint : none, because the browser will think that the response comes for his original request URL. Advantage : there is no extra network traffic, and it is faster (at least for the client), because it all remains internal to the server. Inconvenient : the browser (and user) remain stupid, in the sense that they will continue to use the original URL, thinking it is correct. (This may actually not be an inconvenient, if this is what the server admin wants) - a proxy is when the server receives a request for a URL which appears local, but then silently behind the scene calls another server to provide the response. The original server then reads the response from the background server and returns it to the client as if it had made it up himself. Advantages/Inconvenients : a bit vast to discuss here, but this is the basic mechanism for something like load-balancing : a front-end server (with a single access point for the clients) receives all requests, and intelligently distributes them to a number of background servers, in function of the load, the type of request, or whatever. The client keeps thinking that the responses come from the front-end server, so it keeps talking to the front-end. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: How to map web app with different root paths?
Should be posted for sure in a FAQ. Thanks all for the links. I think that should cover it. -Original Message- From: André Warnier [mailto:a...@ice-sa.com] Sent: Wednesday, July 21, 2010 3:04 PM To: Tomcat Users List Subject: Re: How to map web app with different root paths? Apart from the answers already provided by Chuck and Christopher, I wonder if a FAQ about proxying, URL abstraction, forwarding, redirecting etc.. and their differences would not be useful ? This kind of question seems to come so often that it would save time in the end if there was just a link to point to. Quick and dirty : - a redirect is when the server sends a HTTP response to the browser saying sorry, the URL you requested is wrong, but the right one is *here* (with the correct URL). The browser then (without even informing the user) immediately makes a new request to this new URL. Hint : the browser's URL bar, in that case, will show the new URL. Advantage : the browser will also discard the old URL from its cache and history, and cache the new one instead. The user may even notice, and request the correct URL right away the next time. Inconvenient : there is more traffic, because there is one request/response exchange for nothing (original request - 302 response from server - new request from browser - server response to correct request) - a forward (and also the concept of URL abstraction) is when the server silently rewrites the URL requested by the user, so that it will be processed by a different webapp (or return a different static document) than the one that would appear to be implied by the original request URL. Hint : none, because the browser will think that the response comes for his original request URL. Advantage : there is no extra network traffic, and it is faster (at least for the client), because it all remains internal to the server. Inconvenient : the browser (and user) remain stupid, in the sense that they will continue to use the original URL, thinking it is correct. (This may actually not be an inconvenient, if this is what the server admin wants) - a proxy is when the server receives a request for a URL which appears local, but then silently behind the scene calls another server to provide the response. The original server then reads the response from the background server and returns it to the client as if it had made it up himself. Advantages/Inconvenients : a bit vast to discuss here, but this is the basic mechanism for something like load-balancing : a front-end server (with a single access point for the clients) receives all requests, and intelligently distributes them to a number of background servers, in function of the load, the type of request, or whatever. The client keeps thinking that the responses come from the front-end server, so it keeps talking to the front-end. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Tuning garbage collection
Hi, I'm using Tomcat 6.0.26, Java 1.6 and wondering what tools/strategies you use to tune your garbage collection parameters? Further, does anyone know how to read entries in the garbage collection log? Entries in my log look like Desired survivor size 10944512 bytes, new threshold 1 (max 15) [PSYoungGen: 129311K-3232K(136512K)] 558882K-434085K(585920K), 0.0090900 secs] Thanks, - Dave -- View this message in context: http://old.nabble.com/Tuning-garbage-collection-tp29230790p29230790.html Sent from the Tomcat - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Deploying Web Application using Tomcat Manager
Hi, I'm using Tomcat 5.5.20 running on Windows 2008 Server. I'm trying to use Tomcat Manager to undeploy and deploy web application without having to restart Tomcat. I'm getting the following issues: First issue, when undeploying web application, after first click on Undeploy button, the manager deletes war files only and leaves the application folder. If you click Undeploy button for the second time is when it deletes the application folder. My web application is under TOMCAT_HOME/webapps, the default. I have tried to add antiJARLocking=true and antiResourceLocking=true to the context file under TOMCAT_HOME/conf/context.xml, but didn't solve my problem. Context antiJARLocking=true antiResourceLocking=true .. /Context Second issue, when deploying application (remotely) using Tomcat Manager, it deploys WAR file on the default location TOMCAT_HOME/webapps , but doesn't create an application folder until I restart Tomcat. I have tried to configure the host with unpackWARs=true and autoDeploy=true but didn't solve my problem either. Host name=localhost debug=0 appBase=webapps unpackWARs=true autoDeploy=true Context path= docBase=ROOT debug=0/ Context path=/orders docBase=/home/ian/orders debug=0 reloadable=true crossContext=true /Context /Host Any help would be very much appreciated Thanks, Fidelis Mnyanyi
Problems starting Tomcat on windows 7 64bit.
I've run tomcat so many times before on every one of my computers with no problem, but I just went to do it today on my desktop and am getting an error immediately on the start of the server. I have set catalina_home, classpath, java_home, jre_home, added jdk to path. I have tried many different versions of tomcat and all give the same problem. Any ideas? Here is the debug: Jul 21, 2010 10:50:09 PM com.sun.org.apache.commons.digester.Digester startElement SEVERE: Begin event threw exception java.lang.ClassNotFoundException: org.apache.catalina.core.AprLifecycleListener at java.net.URLClassLoader$1.run(URLClassLoader.java:202) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at sun.misc.Launcher$ExtClassLoader.findClass(Launcher.java:229) at java.lang.ClassLoader.loadClass(ClassLoader.java:307) at java.lang.ClassLoader.loadClass(ClassLoader.java:248) at com.sun.org.apache.commons.digester.ObjectCreateRule.begin(ObjectCreateRule.java:252) at com.sun.org.apache.commons.digester.Rule.begin(Rule.java:200) at com.sun.org.apache.commons.digester.Digester.startElement(Digester.java:1273) at org.apache.catalina.util.CatalinaDigester.startElement(CatalinaDigester.java:105) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:501) at com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(AbstractXMLDocumentParser.java:179) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(XMLDocumentFragmentScannerImpl.java:1343) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2755) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:511) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:808) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1205) at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:522) at com.sun.org.apache.commons.digester.Digester.parse(Digester.java:1548) at org.apache.catalina.startup.Catalina.load(Catalina.java:526) at org.apache.catalina.startup.Catalina.load(Catalina.java:563) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:264) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:401) Jul 21, 2010 10:50:09 PM org.apache.catalina.startup.Catalina load WARNING: Catalina.start: java.lang.ClassNotFoundException: org.apache.catalina.core.AprLifecycleListener at com.sun.org.apache.commons.digester.Digester.createSAXException(Digester.java:2540) at com.sun.org.apache.commons.digester.Digester.createSAXException(Digester.java:2566) at com.sun.org.apache.commons.digester.Digester.startElement(Digester.java:1276) at org.apache.catalina.util.CatalinaDigester.startElement(CatalinaDigester.java:105) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:501) at com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(AbstractXMLDocumentParser.java:179) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(XMLDocumentFragmentScannerImpl.java:1343) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2755) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:511) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:808) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119) at
RE: Problems starting Tomcat on windows 7 64bit.
From: sharkanana [mailto:sharkan...@gmail.com] Subject: Problems starting Tomcat on windows 7 64bit. I have tried many different versions of tomcat and all give the same problem. So tell us the exact version of *one* Tomcat you tried that has the problem, along with the JRE or JDK version you're using, how you installed Tomcat, and how you're starting it. Just as a guess, it looks like you might be using a server.xml that doesn't come from the version of Tomcat you're trying to run. Try a fresh download and a clean installation and see if that works. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Tuning garbage collection
From: laredotornado [mailto:laredotorn...@gmail.com] Subject: Tuning garbage collection I'm using Tomcat 6.0.26, Java 1.6 and wondering what tools/strategies you use to tune your garbage collection parameters? Usually, just give the JVM as big a heap as will fit on your system with inducing paging, and let the GC algorithms figure out what to do with it. Second-guessing the GC usually ends up degrading performance, unless you're willing to do a lot of experimentation using the workloads you actually have. If you really want to play with it (and have a lot of spare time), start here: http://java.sun.com/javase/technologies/hotspot/gc/index.jsp In particular, look at this one: http://java.sun.com/javase/technologies/hotspot/gc/gc_tuning_6.html Optimizing your webapps (and data base) almost always provides greater benefit that fiddling with GC settings. Further, does anyone know how to read entries in the garbage collection log? See the above reference. Desired survivor size 10944512 bytes, new threshold 1 (max 15) That says the survivor space is just under 11 MB, and objects will be moved to the survivor space after just one collection. [PSYoungGen: 129311K-3232K(136512K)] 558882K-434085K(585920K), The young generation usage was 129 MB before the GC, 3 MB after, and the young gen could use up as much as 136 MB. The total heap usage was 558 MB, shrunk to 434 MB by the GC, and could reach a maximum of 585 MB. 0.0090900 secs] The minor GC took just over 9 milliseconds. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Fire off asynch task in Tomcat.
Hi all, In my Tomcat app I'm looking for a good (or commonly used) method for firing off an asynchronous task. For example, a user registers for an account, and an a task to send a verification email to the user is triggered w/o delaying the response to the user (i.e., task happens in the background). I'm somewhat aware that JMS could be used for this and is part of most J2E environments, but I'd like to see if there's some way to pull this off w/vanilla Tomcat. I had a couple ideas that would probably work, but I'd like to see how others have solved this problem. One idea would be to insert a record into a database table that signifies an email should be sent to the user. This table could be regularly checked by a scheduled job (e.g., a TimerTask) that runs every minute in the background. Another (maybe not so good) idea would be to leverage perhaps a session or request attribute listener that would check for a certain attribute being added to a session or requests. Then if a 'send email' attribute comes through, the listener could process an email. This seems like a bad idea though as I believe the listener event class would be triggered incessantly any time attributes are added/removed when in fact I'm only actually interested in the 'send email' attribute. Anyway, I'm open to all ideas and appreciate you indulging me this far. Eric P. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
