Hi,
This looks like an orderly shutdown of tomcat, can you attach strace and see if
tomcat process does receive a signal from somewhere?
Mfg Thomas
Am 4. Juli 2024 14:46:17 MESZ schrieb Bryan Buchanan
<bry...@webbtide.com.INVALID>:
>I'm running Tomcat 9.0.14 on Centos 8 with JDK 15.
>
>Tomcat is loaded in /opt/tomcat, the directory owned by "joe". If I login as
>"joe" and start Tomcat, everything is fine.
>
>We have people login to the Centos system to run the business application as
>"mary", "jane", "fred" etc. Sometimes they want to shutdown Tomcat, for
>example if they wish to load a price update to the DBMS or whatever. To enable
>them to do this from within the business application, I wrote a setuid() C
>program which sets the effective user as "joe" and executes
>/opt/tomcat/bin/shutdown.sh or /opt/tomcat/bin/startup.sh. This does startup
>Tomcat, but 10 minutes later it dies. Nothing is logged that is unusual. These
>are the last few lines when it dies:
>
>04-Jul-2024 21:45:01.154 INFO [main]
>org.apache.catalina.startup.Catalina.start Server startup in [54,789]
>milliseconds
>04-Jul-2024 21:54:10.149 INFO [Thread-3]
>org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler
>["http-nio-8080"]
>04-Jul-2024 21:54:10.157 INFO [Thread-3]
>org.apache.catalina.core.StandardService.stopInternal Stopping service
>[Catalina]
>04-Jul-2024 21:54:10.194 WARNING [Thread-3]
>org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc The web
>application [TPDRESTServer] registered the JDBC driver [org.postgresql.Driver]
>but failed to unregister it when the web application was stopped. To prevent a
>memory leak, the JDBC Driver has been forcibly unregistered.
>04-Jul-2024 21:54:10.196 WARNING [Thread-3]
>org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The
>web application [TPDRESTServer] appears to have started a thread named [Tomcat
>JDBC Pool Cleaner[862048902:1720093501299]] but has failed to stop it. This is
>very likely to create a memory leak. Stack trace of thread:
>java.base@15/java.lang.Object.wait(Native Method)
>java.base@15/java.util.TimerThread.mainLoop(Timer.java:553)
>java.base@15/java.util.TimerThread.run(Timer.java:506)
>04-Jul-2024 21:54:10.231 INFO [Thread-3]
>org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler
>["http-nio-8080"]
>04-Jul-2024 21:54:10.243 INFO [Thread-3]
>org.apache.coyote.AbstractProtocol.destroy Destroying ProtocolHandler
>["http-nio-8080"]
>
>My C program is:
>
>int main (int argc, char *argv[]) {
>if (argc != 2) {
>printf("%s", "Syntax: ManageTomcat START|STOP");
>return(0);
>}
>printf("%s\n", argv[0]);
>printf("%s\n", argv[1]);
>
>setuid(1000);
>
>if(strcmp(argv[1], "STOP")) {
>system("/opt/apache-tomcat-9.0.14/bin/startup.sh");
>} else {
>system("/opt/apache-tomcat-9.0.14/bin/shutdown.sh");
>} return(1);
>}
>Any ideas would be appreciated.
>
>Bryan
--
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