Hi Hubert: Have you put mysql-connector-java-xxx.jar into $KYLIN_HOME/ext ?
You can download the mysql JDBC jar from https://downloads.mysql.com/archives/c-j/ <https://downloads.mysql.com/archives/c-j/>. > 在 2020年9月11日，17:17，hubert stefani <hubert_stef...@yahoo.fr.INVALID> 写道： > > Hi, > we encounter the following error when we start the Web UI. it seems that > mysql-driver is missing. Have we made a misconfiguration ? Is there a > detailed configuration ? > > > Exception in thread "main" java.lang.IllegalArgumentException: Failed to find > metadata store by url: > kylin_metadata@jdbc,url=jdbc:mysql://localhost:3306/kylin,username=XXXX,password=XXXXXX,maxActive=10,maxIdle=10 > at > org.apache.kylin.common.persistence.ResourceStore.createResourceStore(ResourceStore.java:101) > at > org.apache.kylin.common.persistence.ResourceStore.getStore(ResourceStore.java:113) > at > org.apache.kylin.common.persistence.ResourceTool.copyParallel(ResourceTool.java:153) > at > org.apache.kylin.common.persistence.ResourceTool.main(ResourceTool.java:102) > Caused by: java.lang.reflect.InvocationTargetException > at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) > at > sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) > at > sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) > at java.lang.reflect.Constructor.newInstance(Constructor.java:423) > at > org.apache.kylin.common.persistence.ResourceStore.createResourceStore(ResourceStore.java:94) > ... 3 more > Caused by: java.lang.IllegalArgumentException: > org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class > 'com.mysql.jdbc.Driver' > at > org.apache.kylin.common.persistence.JDBCConnectionManager.<init>(JDBCConnectionManager.java:68) > at > org.apache.kylin.common.persistence.JDBCConnectionManager.getConnectionManager(JDBCConnectionManager.java:48) > > Regards,Hubert
