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From "Ben Murphy (JIRA)" <j...@apache.org>
Subject [jira] Created: (DAEMON-127) JSVC Doesn't Properly Daemonize
Date Tue, 14 Jul 2009 10:37:14 GMT
JSVC Doesn't Properly Daemonize
-------------------------------

                 Key: DAEMON-127
                 URL: https://issues.apache.org/jira/browse/DAEMON-127
             Project: Commons Daemon
          Issue Type: Bug
         Environment: ubuntu hardy
            Reporter: Ben Murphy
            Priority: Minor


One of the JSVC processes doesn't seem to properly detach from my console. It still has fds
attached to my console.

I have jsvc version: 1.0.2~svn20061127-6

I start tomcat with the following command line:

/usr/bin/jsvc -user root -cp /usr/share/java/commons-daemon.jar:/opt/tomcat/bin/bootstrap.jar
-outfile SYSLOG -errfile SYSLOG -pidfile /var/run/mcs.pid -Dcom.sun.management.jmxremote.authenticate=false
-Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.port=18801 -Xmx2048M
-Xms128M -XX:MaxPermSize=256m -XX:PermSize=256m -Djava.awt.headless=true -XX:+HeapDumpOnOutOfMemoryError
-XX:HeapDumpPath=/opt/mcs/temp/ -XX:+PrintGCDetails -Djava.endorsed.dirs=/opt/tomcat/endorsed
-Dcatalina.base=/opt/mcs -Dcatalina.home=/opt/tomcat -Djava.io.tmpdir=/tmp/tomcat6-temp -Djava.security.manager
-Djava.security.policy=/opt/mcs/work/catalina.policy -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
-Djava.util.logging.config.file=/opt/mcs/conf/logging.properties org.apache.catalina.startup.Bootstrap

I see three processes:

root     26452  0.0  0.0  16516   364 ?        Ss   11:31   0:00 /usr/bin/jsvc -user root
-cp /usr/share/java/commons-daemon.jar:/opt/tomcat/bin/bootstrap.jar -outfile SYSLOG -errfile
SYSLOG -pidfile /var/run/mcs.pid -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false
-Dcom.sun.management.jmxremote.port=18801 -Xmx2048M -Xms128M -XX:MaxPermSize=256m -XX:PermSize=256m
-Djava.awt.headless=true -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/opt/mcs/temp/ -XX:+PrintGCDetails
 -Djava.endorsed.dirs=/opt/tomcat/endorsed -Dcatalina.base=/opt/mcs -Dcatalina.home=/opt/tomcat
-Djava.io.tmpdir=/tmp/tomcat6-temp -Djava.security.manager -Djava.security.policy=/opt/mcs/work/catalina.policy
-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.util.logging.config.file=/opt/mcs/conf/logging.properties
org.apache.catalina.startup.Bootstrap
root     26453  0.0  0.0  16516   492 ?        S    11:31   0:00 /usr/bin/jsvc -user root
-cp /usr/share/java/commons-daemon.jar:/opt/tomcat/bin/bootstrap.jar -outfile SYSLOG -errfile
SYSLOG -pidfile /var/run/mcs.pid -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false
-Dcom.sun.management.jmxremote.port=18801 -Xmx2048M -Xms128M -XX:MaxPermSize=256m -XX:PermSize=256m
-Djava.awt.headless=true -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/opt/mcs/temp/ -XX:+PrintGCDetails
 -Djava.endorsed.dirs=/opt/tomcat/endorsed -Dcatalina.base=/opt/mcs -Dcatalina.home=/opt/tomcat
-Djava.io.tmpdir=/tmp/tomcat6-temp -Djava.security.manager -Djava.security.policy=/opt/mcs/work/catalina.policy
-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.util.logging.config.file=/opt/mcs/conf/logging.properties
org.apache.catalina.startup.Bootstrap
root     26455  113 11.1 2600428 233484 ?      Rl   11:31   0:14 /usr/bin/jsvc -user root
-cp /usr/share/java/commons-daemon.jar:/opt/tomcat/bin/bootstrap.jar -outfile SYSLOG -errfile
SYSLOG -pidfile /var/run/mcs.pid -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false
-Dcom.sun.management.jmxremote.port=18801 -Xmx2048M -Xms128M -XX:MaxPermSize=256m -XX:PermSize=256m
-Djava.awt.headless=true -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/opt/mcs/temp/ -XX:+PrintGCDetails
 -Djava.endorsed.dirs=/opt/tomcat/endorsed -Dcatalina.base=/opt/mcs -Dcatalina.home=/opt/tomcat
-Djava.io.tmpdir=/tmp/tomcat6-temp -Djava.security.manager -Djava.security.policy=/opt/mcs/work/catalina.policy
-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.util.logging.config.file=/opt/mcs/conf/logging.properties
org.apache.catalina.startup.Bootstrap

if i check what processes have opened my pty i get:

root@staging:~# lsof /dev/pts/2
COMMAND   PID USER   FD   TYPE DEVICE SIZE NODE NAME
bash    25266 root    0u   CHR  136,2         4 /dev/pts/2
bash    25266 root    1u   CHR  136,2         4 /dev/pts/2
bash    25266 root    2u   CHR  136,2         4 /dev/pts/2
bash    25266 root  255u   CHR  136,2         4 /dev/pts/2
jsvc    26453 root    1u   CHR  136,2         4 /dev/pts/2
jsvc    26453 root    2u   CHR  136,2         4 /dev/pts/2
lsof    26524 root    0u   CHR  136,2         4 /dev/pts/2
lsof    26524 root    1u   CHR  136,2         4 /dev/pts/2
lsof    26524 root    2u   CHR  136,2         4 /dev/pts/2


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