i cant connect to knowage CE (http://localhost:8080/knowage) and the tomcat log look like this:
Caused by: java.sql.SQLNonTransientConnectionException: Socket fail to connect to host:localhost, port:3303. Connection refused: connect
at org.mariadb.jdbc.internal.util.exceptions.ExceptionFactory.createException(ExceptionFactory.java:73)
at org.mariadb.jdbc.internal.util.exceptions.ExceptionFactory.create(ExceptionFactory.java:183)
at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.createSocket(AbstractConnectProtocol.java:255)
at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.createConnection(AbstractConnectProtocol.java:519)
at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.connectWithoutProxy(AbstractConnectProtocol.java:1387)
... 36 more
Caused by: java.net.ConnectException: Connection refused: connect
at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.createSocket(AbstractConnectProtocol.java:250)
... 38 more
03-Nov-2021 09:00:48.468 INFO [main] org.apache.catalina.core.StandardService.startInternal Starting service [Catalina]
03-Nov-2021 09:00:48.469 INFO [main] org.apache.catalina.core.StandardEngine.startInternal Starting Servlet engine: [Apache Tomcat/9.0.50]
03-Nov-2021 09:00:48.613 INFO [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployWAR Deploying web application archive [D:\Knowage\Knowage-Server-CE\webapps\knowage-api.war]
03-Nov-2021 09:01:00.232 INFO [Catalina-utility-3] 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.
2021-11-03 09:01:14.833 INFO 8376 --- [alina-utility-2] i.e.k.knowageapi.ServletInitializer : Starting ServletInitializer using Java 1.8.0_111 on LAPTOP-9VKMB29M with PID 8376 (D:\Knowage\Knowage-Server-CE\webapps\knowage-api\WEB-INF\classes started by ACER in D:\Knowage\Knowage-Server-CE\bin)
2021-11-03 09:01:14.848 INFO 8376 --- [alina-utility-2] i.e.k.knowageapi.ServletInitializer : The following profiles are active: production
2021-11-03 09:01:18.942 INFO 8376 --- [alina-utility-2] j.r.s.ResteasyEmbeddedServletInitializer : Finding JAX-RS Application classes
2021-11-03 09:01:18.953 INFO 8376 --- [alina-utility-2] j.r.s.ResteasyEmbeddedServletInitializer : Property resteasy.jaxrs.app.registration has not been set, JAX-RS Application classes registration is being set to AUTO
2021-11-03 09:01:18.963 INFO 8376 --- [alina-utility-2] j.r.s.ResteasyEmbeddedServletInitializer : Searching for JAX-RS Application Spring beans
2021-11-03 09:01:18.965 INFO 8376 --- [alina-utility-2] j.r.s.ResteasyEmbeddedServletInitializer : No JAX-RS Application Spring beans found
2021-11-03 09:01:18.966 INFO 8376 --- [alina-utility-2] j.r.s.ResteasyEmbeddedServletInitializer : No JAX-RS Application set via property resteasy.jaxrs.app.classes
2021-11-03 09:01:18.972 INFO 8376 --- [alina-utility-2] o.j.r.s.JaxrsApplicationScanner : Scanning classpath to find JAX-RS Application classes
2021-11-03 09:01:19.102 INFO 8376 --- [alina-utility-2] j.r.s.ResteasyEmbeddedServletInitializer : JAX-RS Application class found: it.eng.knowage.knowageapi.RestApplication
2021-11-03 09:01:19.464 INFO 8376 --- [alina-utility-2] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.ws.config.annotation.DelegatingWsConfiguration' of type [org.springframework.ws.config.annotation.DelegatingWsConfiguration$$EnhancerBySpringCGLIB$$8dd5d4a8] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2021-11-03 09:01:19.620 INFO 8376 --- [alina-utility-2] .w.s.a.s.AnnotationActionEndpointMapping : Supporting [WS-Addressing August 2004, WS-Addressing 1.0]
2021-11-03 09:01:19.939 INFO 8376 --- [alina-utility-2] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 4932 ms
2021-11-03 09:01:20.583 INFO 8376 --- [alina-utility-2] o.s.boot.web.servlet.RegistrationBean : Servlet it.eng.knowage.knowageapi.RestApplication was not registered (possibly already registered?)
2021-11-03 09:01:31.882 INFO 8376 --- [alina-utility-2] o.s.o.jpa.LocalEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'knowage-gallery'
2021-11-03 09:01:32.682 INFO 8376 --- [alina-utility-2] o.s.o.jpa.LocalEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'knowage-functioncatalog'
2021-11-03 09:01:33.433 INFO 8376 --- [alina-utility-2] o.s.o.jpa.LocalEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'knowage-config'
2021-11-03 09:01:34.972 INFO 8376 --- [alina-utility-2] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
2021-11-03 09:01:36.046 INFO 8376 --- [alina-utility-2] i.e.k.knowageapi.ServletInitializer : Started ServletInitializer in 22.851 seconds (JVM running for 61.404)
2021-11-03 09:01:36.631 INFO 8376 --- [alina-utility-2] org.jboss.resteasy.resteasy_jaxrs.i18n : RESTEASY002225: Deploying javax.ws.rs.core.Application: class it.eng.knowage.knowageapi.RestApplication
03-Nov-2021 09:01:36.663 INFO [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployWAR Deployment of web application archive [D:\Knowage\Knowage-Server-CE\webapps\knowage-api.war] has finished in [48,050] ms
03-Nov-2021 09:01:36.668 INFO [Catalina-utility-3] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [D:\Knowage\Knowage-Server-CE\webapps\.install4j]