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Hi

After feeling so much joy from being able to enter Knowage for the first time, and after dozens of tries. I decided to stop and start the service (using the shortcut icons that got set on the desktop). Now I'm here once again stuck with an error 500, and my ability to read this and figure something out myself is so low. This said, I've got two questions:

1: Can somebody help me?

2: Why is this tool so bloody delicate?

this is the log i get from catalina log file

Feb 25, 2019 8:12:34 PM org.apache.catalina.core.AprLifecycleListener init

INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jdk1.8.0_201\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\Program Files\Java\jdk1.8.0_201\bin;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Users\mpsr\AppData\Local\Microsoft\WindowsApps;;.

Feb 25, 2019 8:12:35 PM org.apache.coyote.AbstractProtocol init

INFO: Initializing ProtocolHandler ["http-bio-8080"]

Feb 25, 2019 8:12:35 PM org.apache.coyote.AbstractProtocol init

INFO: Initializing ProtocolHandler ["ajp-bio-8009"]

Feb 25, 2019 8:12:35 PM org.apache.catalina.startup.Catalina load

INFO: Initialization processed in 812 ms

Feb 25, 2019 8:12:35 PM org.apache.tomcat.jdbc.pool.ConnectionPool init

WARNING: maxIdle is smaller than minIdle, setting maxIdle to: 10

Feb 25, 2019 8:12:36 PM org.apache.tomcat.jdbc.pool.ConnectionPool init

SEVERE: Unable to create initial connections of pool.

java.sql.SQLNonTransientConnectionException: Could not connect to address=(host=localhost)(port=3303)(type=master) : Connection refused: connect

at org.mariadb.jdbc.internal.util.exceptions.ExceptionMapper.get(ExceptionMapper.java:175)

at org.mariadb.jdbc.internal.util.exceptions.ExceptionMapper.connException(ExceptionMapper.java:83)

at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.connectWithoutProxy(AbstractConnectProtocol.java:1097)

at org.mariadb.jdbc.internal.util.Utils.retrieveProxy(Utils.java:494)

at org.mariadb.jdbc.MariaDbConnection.newConnection(MariaDbConnection.java:150)

at org.mariadb.jdbc.Driver.connect(Driver.java:86)

at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:278)

at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:182)

at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:701)

at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:635)

at org.apache.tomcat.jdbc.pool.ConnectionPool.init(ConnectionPool.java:486)

at org.apache.tomcat.jdbc.pool.ConnectionPool.<init>(ConnectionPool.java:144)

at org.apache.tomcat.jdbc.pool.DataSourceProxy.pCreatePool(DataSourceProxy.java:116)

at org.apache.tomcat.jdbc.pool.DataSourceProxy.createPool(DataSourceProxy.java:103)

at org.apache.tomcat.jdbc.pool.DataSourceFactory.createDataSource(DataSourceFactory.java:554)

at org.apache.tomcat.jdbc.pool.DataSourceFactory.getObjectInstance(DataSourceFactory.java:242)

at org.apache.naming.factory.ResourceFactory.getObjectInstance(ResourceFactory.java:143)

at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:321)

at org.apache.naming.NamingContext.lookup(NamingContext.java:843)

at org.apache.naming.NamingContext.lookup(NamingContext.java:154)

at org.apache.naming.NamingContext.lookup(NamingContext.java:831)

at org.apache.naming.NamingContext.lookup(NamingContext.java:168)

at org.apache.catalina.core.NamingContextListener.addResource(NamingContextListener.java:1093)

at org.apache.catalina.core.NamingContextListener.createNamingContext(NamingContextListener.java:672)

at org.apache.catalina.core.NamingContextListener.lifecycleEvent(NamingContextListener.java:271)

at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)

at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)

at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:724)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)

at org.apache.catalina.startup.Catalina.start(Catalina.java:690)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:498)

at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:322)

at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:456)

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.connect(AbstractConnectProtocol.java:448)

at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.connectWithoutProxy(AbstractConnectProtocol.java:1089)

... 33 more
Environment windows server 2016, Apache Tomcat/7.0.50
asked Feb 28, 2019 in Admin and Developer Functionalities by marce (140 points) | 1 view

1 Answer

0 votes
Looks like the database is not running:

"SEVERE: Unable to create initial connections of pool.

java.sql.SQLNonTransientConnectionException: Could not connect to address=(host=localhost)(port=3303)(type=master) : Connection refused: connect"

Make sure that as startup skript you use knowage_startup.bat, which also starts the mariadb server.
answered Mar 6, 2019 by schipko (2,550 points)
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