jcmd works in console but fails in script

Question

I'm getting mad with what should be a simple task: a java process is running, runs out of memory and a script runs.

SELinux is disabled.

in setenv.sh :

-XX:OnOutOfMemoryError='/opt/alfresco/scripts/dumpNrestart.sh > /tmp/dumpNrestart.log 2>&1' 

in /etc/sudoers.d/alfresco_sudoers :

%alfresco ALL= NOPASSWD: /opt/alfresco/java/bin/jcmd 

in dumpNrestart.sh :

#!/bin/sh -x PIDDE=$(cat /opt/alfresco/tomcat/temp/catalina.pid) /bin/rm -f /tmp/"$PIDDE".hprof /bin/sudo /bin/id /bin/sudo /opt/alfresco/java/bin/jcmd "$PIDDE" GC.heap_dump /tmp/"$PIDDE".hprof /opt/alfresco/tomcat/bin/shutdown.sh -force 

Running dumpNrestart.sh from bash, with an unprivileged user works while it doesn't when called by the JVM (that runs with the same user):

++ cat /opt/alfresco/tomcat/temp/catalina.pid + PIDDE=11451 + /bin/rm -f /tmp/11451.hprof + /opt/alfresco/java/bin/jcmd 11451 GC.heap_dump /tmp/11451.hprof 11451: com.sun.tools.attach.AttachNotSupportedException: Unable to open socket file /proc/11451/root/tmp/.java_pid11451: target process 11451 doesn't respond within 10500ms or HotSpot VM not loaded at jdk.attach/sun.tools.attach.VirtualMachineImpl.<init>(VirtualMachineImpl.java:100) at jdk.attach/sun.tools.attach.AttachProviderImpl.attachVirtualMachine(AttachProviderImpl.java:58) at jdk.attach/com.sun.tools.attach.VirtualMachine.attach(VirtualMachine.java:207) at jdk.jcmd/sun.tools.jcmd.JCmd.executeCommandForPid(JCmd.java:114) at jdk.jcmd/sun.tools.jcmd.JCmd.main(JCmd.java:98) + /opt/alfresco/tomcat/bin/shutdown.sh -force 

I guess it is a permission/privilege issue but with sudo I thought I was done... but I'm not as we see.

Any ideas, something I could try?

Thanks for your time reading this!

Answer 1

Try using & .This will make the script to run in the background. And it will have access.

-XX:OnOutOfMemoryError='sh /opt/alfresco/scripts/dumpNrestart.sh &'