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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 41992] New: - Need ability to set OS process title
Date Fri, 30 Mar 2007 10:52:25 GMT
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http://issues.apache.org/bugzilla/show_bug.cgi?id=41992

           Summary: Need ability to set OS process title
           Product: Tomcat 6
           Version: 6.0.10
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: Catalina
        AssignedTo: tomcat-dev@jakarta.apache.org
        ReportedBy: yozh@mx1.ru


Sun JDK (and maybe others) have cool feature: you can make symlink to "java" executable, and
execute 
java from that symlink, and then you will see your tomcat java process in process list with
name of your 
symlink and not java. This is very useful for administration.

So it would be great if Tomcat supported one more parameter: OS environment variable JAVA_EXEC.

Example:

# ./bin/startup.sh                                                 
Using CATALINA_BASE:   /Users/yozh/devel/left/tomcat/apache-tomcat-6.0.10
Using CATALINA_HOME:   /Users/yozh/devel/left/tomcat/apache-tomcat-6.0.10
Using CATALINA_TMPDIR: /Users/yozh/devel/left/tomcat/apache-tomcat-6.0.10/temp
Using JRE_HOME:       /System/Library/Frameworks/JavaVM.framework/Versions/1.5/Home
Using JAVA_EXEC:       /System/Library/Frameworks/JavaVM.framework/Versions/1.5/Home/bin/java
# ps ax | egrep (java|tomcat) | grep -v grep                       
 1712  p1  S      0:04.30 /System/Library/Frameworks/JavaVM.framework/Versions/1.5/Home/bin/java

-Djava.util.logg
# ./bin/shutdown.sh                                                
...
# ln -s /System/Library/Frameworks/JavaVM.framework/Versions/1.5/Home/bin/java super-duper-
tomcat
# JAVA_EXEC=/Users/yozh/devel/left/tomcat/apache-tomcat-6.0.10/super-duper-tomcat ./bin/
startup.sh               
Using CATALINA_BASE:   /Users/yozh/devel/left/tomcat/apache-tomcat-6.0.10
Using CATALINA_HOME:   /Users/yozh/devel/left/tomcat/apache-tomcat-6.0.10
Using CATALINA_TMPDIR: /Users/yozh/devel/left/tomcat/apache-tomcat-6.0.10/temp
Using JRE_HOME:       /System/Library/Frameworks/JavaVM.framework/Versions/1.5/Home
Using JAVA_EXEC:       /Users/yozh/devel/left/tomcat/apache-tomcat-6.0.10/super-duper-tomcat
# ps ax | egrep (java|tomcat) | grep -v grep                                             
                       
 1829  p1  R      0:03.86 /Users/yozh/devel/left/tomcat/apache-tomcat-6.0.10/super-duper-tomcat
-
Djava.util.loggi
# killall super-duper-tomcat                                                             
                       
# ps ax | egrep (java|tomcat) | grep -v grep                                             
                       

It is also possible to make hardlinks in $JAVA_HOME/bin/tmp/ to have process name shown in
"top" 
output.

I have tested patch only under Mac OS X.

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