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[Wrapper-user] Cant fid libjvm.so with setuid bit
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From: Mike C. <MCa...@cr...> - 2004-08-06 23:33:15
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Hi I am setting up a jboss server that is running on RedHat Linux (ES) 3.0. I have the 1.4.2 jdk from sun installed, via rpm, in /usr/java/j2sdk... I have been using the Java Service Wrapper for the last couple of years and have been very happy with it. My problem is this. Initially I had everything set up to run my JBoss instance via wrapper script and had it nicely integrated, no problems everything works as expected. However, I was running the service as root. So I changed the ownership of all files in my jboss directory to jboss:jboss (yes I made the user). Then I set the user bit (setuid) on the wrapper executeable file (chmod u+s wrapper). When I do this I get the following error when trying to run the service/daemon: "Unable to load native library: libjvm.so: cannot open shared object file: No such file or directory If I chmod 777 the wrapper file it works just fine, even with the jboss owner. I did find a previous issue with libjvm.so here http://sourceforge.net/mailarchive/message.php?msg_id=6815963 <http://sourceforge.net/mailarchive/message.php?msg_id=6815963> but the answer seemed to be that the jvm was corrupted which seems unlikely since it all works when the uid bit of the wrapper file is not set. The only thing I can think of is that I explicitly list tools.jar in my classpath arguments (this has always worked for me) but everything else should be pretty standard. Comparing with the log file that works there are no differences until the after the "Launching JVM..." output. I did put the wrapper.debug parameter in the conf file here is the output: DEBUG | wrapper | 2004/08/06 16:05:18 | Spawning intermediate process... DEBUG | wrapper | 2004/08/06 16:05:18 | Spawning daemon process... STATUS | wrapper | 2004/08/06 16:05:18 | --> Wrapper Started as Daemon DEBUG | wrapperp | 2004/08/06 16:05:18 | server listening on port 32001. DEBUG | wrapper | 2004/08/06 16:05:18 | Command[0] : /usr/java/j2sdk1.4.2_04/bin/java DEBUG | wrapper | 2004/08/06 16:05:18 | Command[1] : -Dprogram.name=echo-run.sh DEBUG | wrapper | 2004/08/06 16:05:18 | Command[2] : -Djboss.home=/usr/local/lib/jboss DEBUG | wrapper | 2004/08/06 16:05:18 | Command[3] : -Xdebug DEBUG | wrapper | 2004/08/06 16:05:18 | Command[4] : -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=18001 DEBUG | wrapper | 2004/08/06 16:05:18 | Command[5] : -Djava.library.path=../lib DEBUG | wrapper | 2004/08/06 16:05:18 | Command[6] : -classpath DEBUG | wrapper | 2004/08/06 16:05:18 | Command[7] : ../lib/wrapper.jar:../bin/run.jar:/usr/java/j2sdk1.4.2_04/lib/tools.jar DEBUG | wrapper | 2004/08/06 16:05:18 | Command[8] : -Dwrapper.key=9KsZxLvqZXfQjzky DEBUG | wrapper | 2004/08/06 16:05:18 | Command[9] : -Dwrapper.port=32001 DEBUG | wrapper | 2004/08/06 16:05:18 | Command[10] : -Dwrapper.debug=TRUE DEBUG | wrapper | 2004/08/06 16:05:18 | Command[11] : -Dwrapper.use_system_time=TRUE DEBUG | wrapper | 2004/08/06 16:05:18 | Command[12] : -Dwrapper.version=3.1.0 DEBUG | wrapper | 2004/08/06 16:05:18 | Command[13] : -Dwrapper.native_library=wrapper DEBUG | wrapper | 2004/08/06 16:05:18 | Command[14] : -Dwrapper.service=TRUE DEBUG | wrapper | 2004/08/06 16:05:18 | Command[15] : -Dwrapper.cpu.timeout=10 DEBUG | wrapper | 2004/08/06 16:05:18 | Command[16] : -Dwrapper.jvmid=1 DEBUG | wrapper | 2004/08/06 16:05:18 | Command[17] : org.tanukisoftware.wrapper.WrapperSimpleApp DEBUG | wrapper | 2004/08/06 16:05:18 | Command[18] : org.jboss.Main DEBUG | wrapper | 2004/08/06 16:05:18 | Command[19] : -c DEBUG | wrapper | 2004/08/06 16:05:18 | Command[20] : cc STATUS | wrapper | 2004/08/06 16:05:18 | Launching a JVM... INFO | jvm 1 | 2004/08/06 16:05:18 | Error occurred during initialization of VM INFO | jvm 1 | 2004/08/06 16:05:18 | Unable to load native library: libjvm.so: cannot open shared object file: No such file or directory DEBUG | wrapper | 2004/08/06 16:05:18 | JVM process exited with a code of 1, setting the wrapper exit code to 1. ERROR | wrapper | 2004/08/06 16:05:18 | JVM exited while loading the application. DEBUG | wrapper | 2004/08/06 16:05:18 | JVM was only running for 0 seconds leading to a failed restart count of 1. Thanks, MC Mike Cassisa Software Engineer Cricket Communications 10307 Pacific Center Court San Diego, CA 92121 858-882-6096 Office Computer Science is the discipline that believes all problems can be solved with one more layer of indirection. -Dennis DeBruler |
