Hello Christoph, On Tue, Nov 28, 2023, 5:55 PM Christoph Kukulies <k...@kukulies.org.invalid> wrote:
> I'm pulling my hairs on a suddenly occured - possibly - misconfiguration. > But I can't find it out: > > catalina.2023-11-28.log: > > > 28-Nov-2023 13:15:43.742 INFO [main] > org.apache.catalina.startup.VersionLoggerListener.log Server version name: > Apache Tomcat/9.0.58 (Ubuntu) > 28-Nov-2023 13:15:43.743 INFO [main] > org.apache.catalina.startup.VersionLoggerListener.log Server built: > Jan 6 1970 15:09:28 UTC > 28-Nov-2023 13:15:43.744 INFO [main] > org.apache.catalina.startup.VersionLoggerListener.log Server version > number: 9.0.58.0 > 28-Nov-2023 13:15:43.744 INFO [main] > org.apache.catalina.startup.VersionLoggerListener.log OS Name: > Linux > 28-Nov-2023 13:15:43.744 INFO [main] > org.apache.catalina.startup.VersionLoggerListener.log OS Version: > 5.15.0-89-generic > 28-Nov-2023 13:15:43.745 INFO [main] > org.apache.catalina.startup.VersionLoggerListener.log Architecture: > amd64 > 28-Nov-2023 13:15:43.745 INFO [main] > org.apache.catalina.startup.VersionLoggerListener.log Java Home: > /usr/lib/jvm/java-11-openjdk-amd64 > 28-Nov-2023 13:15:43.745 INFO [main] > org.apache.catalina.startup.VersionLoggerListener.log JVM Version: > 11.0.20.1+1-post-Ubuntu-0ubuntu122.04 > 28-Nov-2023 13:15:43.745 INFO [main] > org.apache.catalina.startup.VersionLoggerListener.log JVM Vendor: > Ubuntu > 28-Nov-2023 13:15:43.746 INFO [main] > org.apache.catalina.startup.VersionLoggerListener.log CATALINA_BASE: > /var/lib/tomcat9 > 28-Nov-2023 13:15:43.746 INFO [main] > org.apache.catalina.startup.VersionLoggerListener.log CATALINA_HOME: > /usr/share/tomcat9 > 28-Nov-2023 13:15:43.758 INFO [main] > org.apache.catalina.startup.VersionLoggerListener.log Command line > argument: --add-opens=java.base/java.lang=ALL-UNNAMED > 28-Nov-2023 13:15:43.759 INFO [main] > org.apache.catalina.startup.VersionLoggerListener.log Command line > argument: --add-opens=java.base/java.io=ALL-UNNAMED > 28-Nov-2023 13:15:43.759 INFO [main] > org.apache.catalina.startup.VersionLoggerListener.log Command line > argument: --add-opens=java.base/java.util=ALL-UNNAMED > 28-Nov-2023 13:15:43.760 INFO [main] > org.apache.catalina.startup.VersionLoggerListener.log Command line > argument: --add-opens=java.base/java.util.concurrent=ALL-UNNAMED > 28-Nov-2023 13:15:43.760 INFO [main] > org.apache.catalina.startup.VersionLoggerListener.log Command line > argument: --add-opens=java.rmi/sun.rmi.transport=ALL-UNNAMED > 28-Nov-2023 13:15:43.760 INFO [main] > org.apache.catalina.startup.VersionLoggerListener.log Command line > argument: > -Djava.util.logging.config.file=/var/lib/tomcat9/conf/logging.properties > 28-Nov-2023 13:15:43.761 INFO [main] > org.apache.catalina.startup.VersionLoggerListener.log Command line > argument: -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager > 28-Nov-2023 13:15:43.761 INFO [main] > org.apache.catalina.startup.VersionLoggerListener.log Command line > argument: -Djava.awt.headless=true > 28-Nov-2023 13:15:43.761 INFO [main] > org.apache.catalina.startup.VersionLoggerListener.log Command line > argument: -Djdk.tls.ephemeralDHKeySize=2048 > 28-Nov-2023 13:15:43.761 INFO [main] > org.apache.catalina.startup.VersionLoggerListener.log Command line > argument: -Djava.protocol.handler.pkgs=org.apache.catalina.webresources > 28-Nov-2023 13:15:43.762 INFO [main] > org.apache.catalina.startup.VersionLoggerListener.log Command line > argument: -Dorg.apache.catalina.security.SecurityListener.UMASK=0027 > 28-Nov-2023 13:15:43.762 INFO [main] > org.apache.catalina.startup.VersionLoggerListener.log Command line > argument: -Dignore.endorsed.dirs= > 28-Nov-2023 13:15:43.762 INFO [main] > org.apache.catalina.startup.VersionLoggerListener.log Command line > argument: -Dcatalina.base=/var/lib/tomcat9 > 28-Nov-2023 13:15:43.762 INFO [main] > org.apache.catalina.startup.VersionLoggerListener.log Command line > argument: -Dcatalina.home=/usr/share/tomcat9 > 28-Nov-2023 13:15:43.763 INFO [main] > org.apache.catalina.startup.VersionLoggerListener.log Command line > argument: -Djava.io.tmpdir=/tmp > 28-Nov-2023 13:15:43.768 INFO [main] > org.apache.catalina.core.AprLifecycleListener.lifecycleEvent Loaded Apache > Tomcat Native library [1.2.31] using APR version [1.7.0]. > 28-Nov-2023 13:15:43.769 INFO [main] > org.apache.catalina.core.AprLifecycleListener.lifecycleEvent APR > capabilities: IPv6 [true], sendfile [true], accept filters [false], random > [true], UDS [true]. > 28-Nov-2023 13:15:43.771 INFO [main] > org.apache.catalina.core.AprLifecycleListener.lifecycleEvent APR/OpenSSL > configuration: useAprConnector [false], useOpenSSL [true] > 28-Nov-2023 13:15:43.776 INFO [main] > org.apache.catalina.core.AprLifecycleListener.initializeSSL OpenSSL > successfully initialized [OpenSSL 3.0.2 15 Mar 2022] > 28-Nov-2023 13:15:44.229 INFO [main] > org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler > ["http-nio-8080"] > 28-Nov-2023 13:15:44.268 INFO [main] > org.apache.catalina.startup.Catalina.load Server initialization in [799] > milliseconds > 28-Nov-2023 13:15:44.328 INFO [main] > org.apache.catalina.core.StandardService.startInternal Starting service > [Catalina] > 28-Nov-2023 13:15:44.328 INFO [main] > org.apache.catalina.core.StandardEngine.startInternal Starting Servlet > engine: [Apache Tomcat/9.0.58 (Ubuntu)] > 28-Nov-2023 13:15:44.345 INFO [main] > org.apache.catalina.startup.HostConfig.deployWAR Deploying web application > archive [/var/lib/tomcat9/webapps/ROOT.war] > 28-Nov-2023 13:15:54.672 INFO [main] > org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned > for TLDs yet contained no TLDs. Enable debug logging for this logger for a > complete list of JARs that were scanned but no TLDs were found in them. > Skipping unneeded JARs during scanning can improve startup time and JSP > compilation time. > 28-Nov-2023 13:16:08.279 INFO [main] > org.apache.catalina.startup.HostConfig.deployWAR Deployment of web > application archive [/var/lib/tomcat9/webapps/ROOT.war] has finished in > [23,934] ms > 28-Nov-2023 13:16:08.282 INFO [main] > org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler > ["http-nio-8080"] > 28-Nov-2023 13:16:08.302 INFO [main] > org.apache.catalina.startup.Catalina.start Server startup in [24033] > milliseconds > > root@mail:/var/lib/tomcat9/logs# lsof -i :8080 > COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME > java 58986 tomcat 37u IPv6 571175 0t0 TCP *:http-alt (LISTEN) > root@mail:/var/lib/tomcat9/logs# > > > As a result my frontend server (haproxy) cannot connect to the tomcat9 > backend server. What's wrong? > Was there any change in JVM arguments recently? You can force JVM to use IPv4 by adding following argument: -Djava.net.preferIPv4Stack=true
