Re: Re: Help, My Tomcat always down everyday!
simon colston£¬ÄúºÃ£¡ Thanks for your reply, but I use JSDK1.3.0.04, not 1.3.1, and do you found the same problem of my JVM? Such like this, when I restart tomcat, JAVA occupy 14M memory, after some times, JAVA occupy 23M or more Memory, do you have this problem? The memory of JAVA increased by time!!! I 'm not familiar with IBM JVM,where can I found IBM JVM? And will it work good with tomcat? will IBM JVM have all functions of JDK JVM? Thanks a lot! ÔÚ 2001-09-20 18:01:00 ÄúдµÀ£º I've found the Sun JVM 1.3.1 to be unstable on Linux 6.2 and 7.1. Tomcat kept crashing at random intervals (sometime a few days, sometimes a few hours). I switched to the IBM JVM and it started to run OK - no crashing. Maybe you'd like to give that a try. On Thu, 20 Sep 2001 14:28:39 +0530 Dinu Jose [EMAIL PROTECTED] wrote: DJ Hello All, DJ I am also facing a similar scenario and the situation is still more worse,i. DJ e.,tomcat is down every two hours.If restarted,it works fine and will be DJ down after two hours.Please help . DJ Thanks in advance DJ Dinu DJ DJ DJ -Original Message- DJ From: akilus [mailto:[EMAIL PROTECTED]] DJ Sent: Thursday, September 20, 2001 2:17 PM DJ To: [EMAIL PROTECTED] DJ Subject: Help, My Tomcat always down everyday! DJ DJ DJ Hello, Everybody! DJ My Tomcat always down everyday, I don't know why, and I don't find anything DJ useful in my log files. DJ and when I restart Tomcat, everything will go correctly, but after some DJ time, normally in noon, the tomcat will down again. DJ And another thing is :The memory that jdk occupy increase with time, I don't DJ know whether it is normal or abnormal. DJ Who can tell me several possible reasons about this? I use redhat DJ 6.2,Apache1.3.12, Tomcat3.2.2 and j2sdk1.3.0.04 for linux. DJ The below is my configuration for tomcat, other files is not modified: DJ Tomcat.conf: DJ /// DJ DJ DJ DJ ### DJ # Apache JServ Configuration File DJ # DJ DJ ### DJ DJ # Note: this file should be appended or included into your httpd.conf DJ DJ # Tell Apache on win32 to load the Apache JServ communication module DJ # LoadModule jserv_module modules/ApacheModuleJServ.dll DJ DJ # Tell Apache on Unix to load the Apache JServ communication module DJ # For shared object builds only!!! DJ # @LOAD_OR_NOT@LoadModule jserv_module @LIBEXECDIR@/mod_jserv.so DJ LoadModule jserv_module libexec/mod_jserv.so DJ DJ IfModule mod_jserv.c DJ # Do not edit! DJ ApJServManual on DJ ApJServDefaultProtocol ajpv12 DJ ApJServSecretKey DISABLED DJ ApJServMountCopy on DJ ApJServLogLevel notice DJ DJ DJ ### Change if you run tomcat on a different host DJ #ApJServDefaultHost localhost DJ ApJServDefaultPort 8007 DJ DJ DJ All jsp files will go to tomcat DJ ApJServMount default /root DJ DJ AddType text/jsp .jsp DJ AddHandler jserv-servlet .jsp DJ DJ Alias /app /home/httpd/html DJ DJ Directory /home/httpd/html DJ Options FollowSymLinks DJ /Directory DJ DJ Location /app/WEB-INF/ DJ AllowOverride None DJ deny from all DJ /Location DJ DJ LocationMatch /app/*.jsp DJ setHandler jserv-servlet DJ /LocationMatch DJ DJ ## Context mapping - all requests go to tomcat DJ DJ ApJServMount /examples /root DJ DJ ## Context mapping - you need to deploy DJ # ( copy or ln -s ) the context into htdocs DJ ## DJ DJ # ApJservMount /CONTEXT/servlet /root DJ # Location /CONTEXT/WEB-INF/ DJ # AllowOverride None DJ # deny from all DJ # /Location DJ DJ ApJServMount /app/servlet /app DJ DJ ApJServMount /servlet /ROOT DJ DJ /IfModule DJ /// DJ server.xml DJ // DJ ?xml version=1.0 encoding=ISO-8859-1? DJ DJ Server DJ !-- Debug low-level events in XmlMapper startup -- DJ xmlmapper:debug level=0 / DJ DJ !-- DJ DJ Logging: DJ DJ Logging in Tomcat is quite flexible; we can either have a log DJ file per module (example: ContextManager) or we can have one DJ for Servlets and one for Jasper, or we can just have one DJ tomcat.log for both Servlet and Jasper. Right now there are DJ three standard log streams, tc_log, servlet_log, and DJ JASPER_LOG. DJ DJ Path: DJ DJ The file to which to output this log, relative to DJ TOMCAT_HOME. If you omit a path value, then stderr or DJ stdout will be used. DJ DJ Verbosity: DJ DJ Threshold for which types of messages are displayed in the DJ log. Levels are inclusive; that is, WARNING level displays DJ any log message marked as warning, error, or fatal. Default DJ level is WARNING. DJ DJ verbosityLevel values can be: DJFATAL DJERROR DJWARNING DJ
Re: RE: Help, My Tomcat always down everyday!
Dinu Jose£¬ÄúºÃ£¡ Do u have the same software with me? ÔÚ 2001-09-20 14:28:00 ÄúдµÀ£º Hello All, I am also facing a similar scenario and the situation is still more worse,i. e.,tomcat is down every two hours.If restarted,it works fine and will be down after two hours.Please help . Thanks in advance Dinu -Original Message- From: akilus [mailto:[EMAIL PROTECTED]] Sent: Thursday, September 20, 2001 2:17 PM To: [EMAIL PROTECTED] Subject: Help, My Tomcat always down everyday! Hello, Everybody! My Tomcat always down everyday, I don't know why, and I don't find anything useful in my log files. and when I restart Tomcat, everything will go correctly, but after some time, normally in noon, the tomcat will down again. And another thing is :The memory that jdk occupy increase with time, I don't know whether it is normal or abnormal. Who can tell me several possible reasons about this? I use redhat 6.2,Apache1.3.12, Tomcat3.2.2 and j2sdk1.3.0.04 for linux. The below is my configuration for tomcat, other files is not modified: Tomcat.conf: /// ### # Apache JServ Configuration File # ### # Note: this file should be appended or included into your httpd.conf # Tell Apache on win32 to load the Apache JServ communication module # LoadModule jserv_module modules/ApacheModuleJServ.dll # Tell Apache on Unix to load the Apache JServ communication module # For shared object builds only!!! # @LOAD_OR_NOT@LoadModule jserv_module @LIBEXECDIR@/mod_jserv.so LoadModule jserv_module libexec/mod_jserv.so IfModule mod_jserv.c # Do not edit! ApJServManual on ApJServDefaultProtocol ajpv12 ApJServSecretKey DISABLED ApJServMountCopy on ApJServLogLevel notice ### Change if you run tomcat on a different host #ApJServDefaultHost localhost ApJServDefaultPort 8007 All jsp files will go to tomcat ApJServMount default /root AddType text/jsp .jsp AddHandler jserv-servlet .jsp Alias /app /home/httpd/html Directory /home/httpd/html Options FollowSymLinks /Directory Location /app/WEB-INF/ AllowOverride None deny from all /Location LocationMatch /app/*.jsp setHandler jserv-servlet /LocationMatch ## Context mapping - all requests go to tomcat ApJServMount /examples /root ## Context mapping - you need to deploy # ( copy or ln -s ) the context into htdocs ## # ApJservMount /CONTEXT/servlet /root # Location /CONTEXT/WEB-INF/ # AllowOverride None # deny from all # /Location ApJServMount /app/servlet /app ApJServMount /servlet /ROOT /IfModule /// server.xml // ?xml version=1.0 encoding=ISO-8859-1? Server !-- Debug low-level events in XmlMapper startup -- xmlmapper:debug level=0 / !-- Logging: Logging in Tomcat is quite flexible; we can either have a log file per module (example: ContextManager) or we can have one for Servlets and one for Jasper, or we can just have one tomcat.log for both Servlet and Jasper. Right now there are three standard log streams, tc_log, servlet_log, and JASPER_LOG. Path: The file to which to output this log, relative to TOMCAT_HOME. If you omit a path value, then stderr or stdout will be used. Verbosity: Threshold for which types of messages are displayed in the log. Levels are inclusive; that is, WARNING level displays any log message marked as warning, error, or fatal. Default level is WARNING. verbosityLevel values can be: FATAL ERROR WARNING INFORMATION DEBUG Timestamps: By default, logs print a timestamp in the form -MM-dd hh:mm:ss in front of each message. To disable timestamps completely, set 'timestamp=no'. To use the raw msec-since-epoch, which is more efficient, set 'timestampFormat=msec'. If you want a custom format, you can use 'timestampFormat=hh:mm:ss' following the syntax of java.text.SimpleDateFormat (see Javadoc API). For a production environment, we recommend turning timestamps off, or setting the format to msec. Custom Output: Custom means normal looking. Non-custom means surrounded with funny xml tags. In preparation for possibly disposing of custom altogether, now the default is 'custom=yes' (i.e. no tags) Per-component Debugging: Some components accept a debug attribute. This further enhances log output. If you set the debug level for a component, it may output extra debugging information. --
Re: Re: Help, My Tomcat always down everyday!
On Thu, 20 Sep 2001 17:53:42 +0800 akilus [EMAIL PROTECTED] wrote: Thanks for your help, I used JDK1.3.1 and JDK1.3.0, the two JDKs have the same problem. I will try JDK1.2.2 now, and see whether it have this problem or not. If JDK1.2.2 is the same for me, maybe the tomcat have some problem with JDK. But I dont want to use IBM JVM now, because I'm not familiar with them, and I don't know whether I need to modify my jsp program or not if I change to IBM JVM, because our program utilize some functions of JDK and other packages from SUN. Thanks for your reply, but I use JSDK1.3.0.04, not 1.3.1, and do you found the same problem of my JVM? Not tried it, sorry. Such like this, when I restart tomcat, JAVA occupy 14M memory, after some times, JAVA occupy 23M or more Memory, do you have this problem? The memory of JAVA increased by time!!! This is normal. By default the JVM will use up 64M without releasing memory back to the OS. You can set the maximum and minimum amount of memory the JVM uses uses command line parameters to the java command (see the documentation for the 'java' command) I 'm not familiar with IBM JVM,where can I found IBM JVM? http://www-106.ibm.com/developerworks/java/jdk/linux130/?dwzone=java And will it work good with tomcat? will IBM JVM have all functions of JDK JVM? I'm using it and it works for me ;o) -- simon colston [EMAIL PROTECTED]
