使用Kettle报错的解决方法

原创已于 2022-02-24 10:50:58 修改 · 2.1w 阅读

7 ·

CC 4.0 BY-SA版权

文章标签：

#etl #数据库 #数据仓库

于 2018-07-20 15:37:26 首次发布

本文介绍了使用Kettle连接MySQL时遇到的“maxAllowedPacket”错误，并提供了两种解决方案：一是通过SQL语句临时调整参数；二是修改my.ini文件中的配置并重启MySQL服务。

1.当你在navicat上面测试数据库连接的时候可以看到数据库连接成功。而在Kettle上面连接同样的库的时候报出一大段错误出来，这时候是不是感觉有点懵逼了。

错误内容如下：

错误连接数据库 [test库] : com.tyky.di.core.exception.XbridgeDatabaseException:
Error occured while trying to connect to the database

Error connecting to database: (using class org.gjt.mm.mysql.Driver)
Connection setting too low for 'maxAllowedPacket'. When 'useServerPrepStmts=true', 'maxAllowedPacket' must be higher than 8203. Check also 'max_allowed_packet' in MySQL configuration files.

com.tyky.di.core.exception.XbridgeDatabaseException:
Error occured while trying to connect to the database

   at com.tyky.di.core.database.Database.normalConnect(Database.java:374)
   at com.tyky.di.core.database.Database.connect(Database.java:323)
   at com.tyky.di.core.database.Database.connect(Database.java:285)
   at com.tyky.di.core.database.Database.connect(Database.java:275)
   at com.tyky.di.core.database.DatabaseFactory.getConnectionTestReport(DatabaseFactory.java:76)
   at com.tyky.di.core.database.DatabaseMeta.testConnection(DatabaseMeta.java:2455)
   at com.tyky.ui.database.event.DataHandler.testDatabaseConnection(DataHandler.java:511)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:606)
   at org.pentaho.ui.xul.impl.AbstractXulDomContainer.invoke(AbstractXulDomContainer.java:329)
   at org.pentaho.ui.xul.impl.AbstractXulComponent.invoke(AbstractXulComponent.java:139)
   at org.pentaho.ui.xul.impl.AbstractXulComponent.invoke(AbstractXulComponent.java:123)
   at org.pentaho.ui.xul.swt.tags.SwtButton.access$500(SwtButton.java:26)
   at org.pentaho.ui.xul.swt.tags.SwtButton$4.widgetSelected(SwtButton.java:119)
   at org.eclipse.swt.widgets.TypedListener.handleEvent(Unknown Source)
   at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)
   at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
   at org.eclipse.swt.widgets.Display.runDeferredEvents(Unknown Source)
   at org.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source)
   at org.eclipse.jface.window.Window.runEventLoop(Window.java:820)
   at org.eclipse.jface.window.Window.open(Window.java:796)
   at org.pentaho.ui.xul.swt.tags.SwtDialog.show(SwtDialog.java:378)
   at org.pentaho.ui.xul.swt.tags.SwtDialog.show(SwtDialog.java:304)
   at com.tyky.di.ui.core.database.dialog.XulDatabaseDialog.open(XulDatabaseDialog.java:104)
   at com.tyky.di.ui.core.database.dialog.DatabaseDialog.open(DatabaseDialog.java:51)
   at com.tyky.di.ui.spoon.delegates.SpoonDBDelegate.editConnection(SpoonDBDelegate.java:78)
   at com.tyky.di.ui.spoon.Spoon.doubleClickedInTree(Spoon.java:3010)
   at com.tyky.di.ui.spoon.Spoon.access$19(Spoon.java:2974)
   at com.tyky.di.ui.spoon.Spoon$23.widgetDefaultSelected(Spoon.java:5960)
   at org.eclipse.swt.widgets.TypedListener.handleEvent(Unknown Source)
   at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)
   at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
   at org.eclipse.swt.widgets.Display.runDeferredEvents(Unknown Source)
   at org.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source)
   at com.tyky.di.ui.spoon.Spoon.readAndDispatch(Spoon.java:1259)
   at com.tyky.di.ui.spoon.Spoon.start(Spoon.java:7896)
   at com.tyky.di.ui.spoon.Spoon.main(Spoon.java:582)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:606)
   at org.pentaho.commons.launcher.Launcher.main(Launcher.java:134)
Caused by: com.tyky.di.core.exception.XbridgeDatabaseException:
Error connecting to database: (using class org.gjt.mm.mysql.Driver)
Connection setting too low for 'maxAllowedPacket'. When 'useServerPrepStmts=true', 'maxAllowedPacket' must be higher than 8203. Check also 'max_allowed_packet' in MySQL configuration files.

   at com.tyky.di.core.database.Database.connectUsingClass(Database.java:510)
   at com.tyky.di.core.database.Database.normalConnect(Database.java:358)
   ... 43 more
Caused by: java.sql.SQLException: Connection setting too low for 'maxAllowedPacket'. When 'useServerPrepStmts=true', 'maxAllowedPacket' must be higher than 8203. Check also 'max_allowed_packet' in MySQL configuration files.
   at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:996)
   at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:935)
   at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:924)
   at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:870)
   at com.mysql.jdbc.ConnectionImpl.initializePropsFromServer(ConnectionImpl.java:3305)
   at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2278)
   at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2064)
   at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:790)
   at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:44)
   at sun.reflect.GeneratedConstructorAccessor32.newInstance(Unknown Source)
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
   at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
   at com.mysql.jdbc.Util.handleNewInstance(Util.java:377)
   at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:395)
   at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:325)
   at java.sql.DriverManager.getConnection(DriverManager.java:571)
   at java.sql.DriverManager.getConnection(DriverManager.java:215)
   at com.tyky.di.core.database.Database.connectUsingClass(Database.java:490)
   ... 44 more