security-constraint in web.xml - order/priority
Hi, If I have more than one security-constraint tags in my web.xml (some with, some without auth-constraints), which one takes precedence for a specific request? Thanks, Mats
RE: Memory settings
Thanks, I'm trying the JConsole, but I'm not sure I'm connecting to the relevant process? There are two local processes that I can connect to, one seems to be the JConsole itself, then other has no name. If I stop the Tomcat service, there are still the same to processes that I can connect to!? --- On Tue, 3/9/10, Caldarale, Charles R chuck.caldar...@unisys.com wrote: From: Caldarale, Charles R chuck.caldar...@unisys.com Subject: RE: Memory settings To: Tomcat Users List users@tomcat.apache.org Date: Tuesday, March 9, 2010, 10:34 PM From: Mats Eklund [mailto:mats.ekl...@yahoo.com] Subject: Re: Memory settings In the Java tab I have the Java Options field with parameters such as -Dcatalina.home So I just add another few lines to it with the - Xms... parameters? The -Xmx and -Xms settings should be specified in the extra memory pool boxes provided; the others go in the regular options box. Keep the initial and maximum memory pool sizes the same to avoid heap thrashing. And finally, when nothing is specified here, what are the defaults? Depends on the JVM version, the mode of the JVM, and the platform you're running on. Easiest just to crank up JConsole and take a look. - 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
Memory settings
Hi, I'm using Tomcat 5.5 on Windows and am sometimes experiencing exceptions thrown in my web application: java.lang.OutOfMemoryError: Java heap space. I will profile my application to see if this can be avoided by changing the code, however, I'm also interested to know whether and how memory available to the application can be configured. Thanks in advance, Mats
Re: Memory settings
Thanks a lot! In the Java tab I have the Java Options field with parameters such as -Dcatalina.home So I just add another few lines to it with the -Xms... parameters? There are a few fields below that field called: initial memory pool, maximum memory pool, thread stack size. Should I maybe use these fields instead? And finally, when nothing is specified here, what are the defaults? I have tried to find out by looking into some log files but havent found anything. --- On Tue, 3/9/10, André Warnier a...@ice-sa.com wrote: From: André Warnier a...@ice-sa.com Subject: Re: Memory settings To: Tomcat Users List users@tomcat.apache.org Date: Tuesday, March 9, 2010, 9:59 PM Mats Eklund wrote: Hi, I'm using Tomcat 5.5 on Windows and am sometimes experiencing exceptions thrown in my web application: java.lang.OutOfMemoryError: Java heap space. I will profile my application to see if this can be avoided by changing the code, however, I'm also interested to know whether and how memory available to the application can be configured. Short version : (Presuming you installed Tomcat using the service installer,) go to the Tomcat/bin directory and double-click the tomcat5w.exe program. This is a GUI allowing you, in one of the tabs, to set the JVM options used to run Java, which runs Tomcat. Use the options -Xms256m -Xmx256m for example to set the size of the Heap at start to 256 MB (-Xms) and maximum size 256 MB (-Xmx). Setting both to the same value is a bit more efficient, because it avoids the JVM having to keep track and resize this dynamically. Long version : http://java.sun.com/javase/technologies/hotspot/gc/index.jsp http://java.sun.com/javase/technologies/hotspot/gc/memorymanagement_whitepaper.pdf - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Native mode...
Hi, I'm running a webapp on Tomcat 5.5 on Windows Server 2003 and find statements in the log saying that the server could run faster if native libraries were installed. How can I install these libraries? If I rerun the installer, will I get a repair option where I can opt in this library? Note: the server does not allow outbound internet connections. Thanks, Mats
RE: Native mode...
Thanks! I'm not running SSL, so I guess I shouldn't bother. --- On Tue, 3/9/10, Caldarale, Charles R chuck.caldar...@unisys.com wrote: From: Caldarale, Charles R chuck.caldar...@unisys.com Subject: RE: Native mode... To: Tomcat Users List users@tomcat.apache.org Date: Tuesday, March 9, 2010, 10:39 PM From: Mats Eklund [mailto:mats.ekl...@yahoo.com] Subject: Native mode... I'm running a webapp on Tomcat 5.5 on Windows Server 2003 and find statements in the log saying that the server could run faster if native libraries were installed. The performance difference between using APR and the pure Java connectors depends largely on what you're doing. If you have a lot of SSL traffic, APR will help; if you're not using SSL, you likely won't be able to tell the difference, and can stick with the pure Java mode. How can I install these libraries? Just put the tcnative-1.dll into Tomcat's bin directory. The DLL is available here: http://apache.mirrors.timporter.net/tomcat/tomcat-connectors/native/1.1.20/binaries/win32 http://apache.mirrors.timporter.net/tomcat/tomcat-connectors/native/1.1.20/binaries/win64/x64 Choose the appropriate one for your platform. - 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
