michael-o commented on pull request #456: URL: https://github.com/apache/tomcat/pull/456#issuecomment-954947125
> > > > [...] so the second Tomcat now shuts down APR globally, releasing the global structures. The first Tomcat is now shutting down, its `AprConnector` tries to use a sub APR pool/object from a pool which has already been released. > > There is no `AprConnector`. I actually meant the connector using the APR Protocol with the APR endpoint. Where is the Java call which eventually goes down into native to cause this problem? As the AprLifecycleListener is stopping, it should not try to use any APR pool. Perhaps the other connector is still trying to actually use pool objects in some other way. If that's the case, the problem isn't with double-shutdown. It's with shutdown-while-trying-to-still-do-stuff. > > So can we get a Java stack trace for where this is crashing? It should be simple to check to see if APR has been killed at some point and at least not crash the JVM. How does this actually matter? If APR has been globally terminated any subsequent operation to any APR object is deemed to fail and that this what happens here. The problem is just init and destroy and wrong points in time. That's it. ``` Stack: [0x00007fffdcccc000,0x00007fffdcdcc000], sp=0x00007fffdcdcae70, free space=1019k Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code) C [libapr-1.so.0+0x336fa] signed char+0x1a C [libtcnative-1.so.0.2.24+0x19a06] Java_org_apache_tomcat_jni_Address_get+0x36 j org.apache.tomcat.jni.Address.get(IJ)J+0 j org.apache.tomcat.util.net.AprEndpoint.getLocalAddress()Ljava/net/InetSocketAddress;+15 j org.apache.tomcat.util.net.AbstractEndpoint.unlockAccept()V+26 j org.apache.tomcat.util.net.AbstractEndpoint.closeServerSocketGraceful()V+23 j org.apache.coyote.AbstractProtocol.closeServerSocketGraceful()V+4 j org.apache.catalina.core.StandardService.stopInternal()V+35 j org.apache.catalina.util.LifecycleBase.stop()V+214 j org.apache.catalina.core.StandardServer.stopInternal()V+82 j org.apache.catalina.util.LifecycleBase.stop()V+214 j org.apache.catalina.startup.Tomcat.stop()V+9 j org.springframework.boot.web.embedded.tomcat.TomcatWebServer.stopTomcat()V+29 j org.springframework.boot.web.embedded.tomcat.TomcatWebServer.stop()V+32 j org.springframework.boot.web.servlet.context.WebServerStartStopLifecycle.stop()V+4 j org.springframework.context.SmartLifecycle.stop(Ljava/lang/Runnable;)V+1 ``` This is from the main Tomcat instance and shutdown time. The management one is already gone. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
