[2020-05-06_16-31-42_744] ERROR {com.zaxxer.hikari.pool.HikariPool} - HikariPool-32 - Exception during pool initialization.
java.sql.SQLException: The server time zone value 'unknown' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the 'serverTimezone' configuration property) to use a more specifc time zone value if you want to utilize time zone support.
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:129)
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:89)
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:63)
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:73)
at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:76)
at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
at com.mysql.cj.jdbc.ConnectionImpl.(ConnectionImpl.java:456)
at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:197)
at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:121)
at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:353)
at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:201)
at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:473)
at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:562)
at com.zaxxer.hikari.pool.HikariPool.(HikariPool.java:115)
at com.zaxxer.hikari.HikariDataSource.(HikariDataSource.java:81)
at io.siddhi.extension.store.rdbms.RDBMSEventTable.initializeDatasource(RDBMSEventTable.java:1362)
at io.siddhi.extension.store.rdbms.RDBMSEventTable.connect(RDBMSEventTable.java:1092)
at io.siddhi.core.table.record.AbstractQueryableRecordTable.connectAndLoadCache(AbstractQueryableRecordTable.java:206)
at io.siddhi.core.table.Table.connectWithRetry(Table.java:406)
at io.siddhi.core.SiddhiAppRuntimeImpl.startWithoutSources(SiddhiAppRuntimeImpl.java:455)
at io.siddhi.core.SiddhiAppRuntimeImpl.start(SiddhiAppRuntimeImpl.java:424)
at io.siddhi.distribution.editor.core.internal.DebugRuntime.start(DebugRuntime.java:93)
at io.siddhi.distribution.editor.core.internal.DebugProcessorService.start(DebugProcessorService.java:42)
at io.siddhi.distribution.editor.core.internal.EditorMicroservice.start(EditorMicroservice.java:761)
at io.siddhi.distribution.editor.core.internal.EditorMicroservice.startWithVariables(EditorMicroservice.java:781)
at sun.reflect.GeneratedMethodAccessor18.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.wso2.msf4j.internal.router.HttpMethodInfo.invokeResource(HttpMethodInfo.java:187)
at org.wso2.msf4j.internal.router.HttpMethodInfo.invoke(HttpMethodInfo.java:143)
at org.wso2.msf4j.internal.MSF4JHttpConnectorListener.dispatchMethod(MSF4JHttpConnectorListener.java:218)
at org.wso2.msf4j.internal.MSF4JHttpConnectorListener.lambda$onMessage$58(MSF4JHttpConnectorListener.java:129)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: com.mysql.cj.exceptions.InvalidConnectionAttributeException: The server time zone value 'unknown' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the 'serverTimezone' configuration property) to use a more specifc time zone value if you want to utilize time zone support.
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 com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:85)
at com.mysql.cj.util.TimeUtil.getCanonicalTimezone(TimeUtil.java:132)
at com.mysql.cj.protocol.a.NativeProtocol.configureTimezone(NativeProtocol.java:2120)
at com.mysql.cj.protocol.a.NativeProtocol.initServerSession(NativeProtocol.java:2143)
at com.mysql.cj.jdbc.ConnectionImpl.initializePropsFromServer(ConnectionImpl.java:1310)
at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:967)
at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
... 30 more
[2020-05-06_16-31-42_749] ERROR {io.siddhi.core.table.Table} - Error on 'Assignment_02_01'. Failed to initialize pool: The server time zone value 'unknown' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the 'serverTimezone' configuration property) to use a more specifc time zone value if you want to utilize time zone support. . Error while connecting to Table 'table1'. (Encoded)
com.zaxxer.hikari.pool.HikariPool$PoolInitializationException: Failed to initialize pool: The server time zone value 'unknown' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the 'serverTimezone' configuration property) to use a more specifc time zone value if you want to utilize time zone support.
at com.zaxxer.hikari.pool.HikariPool.throwPoolInitializationException(HikariPool.java:597)
at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:576)
at com.zaxxer.hikari.pool.HikariPool.(HikariPool.java:115)
at com.zaxxer.hikari.HikariDataSource.(HikariDataSource.java:81)
at io.siddhi.extension.store.rdbms.RDBMSEventTable.initializeDatasource(RDBMSEventTable.java:1362)
at io.siddhi.extension.store.rdbms.RDBMSEventTable.connect(RDBMSEventTable.java:1092)
答案 0 :(得分：0)
错误原因为
无法识别或表示服务器时区值“未知” 多个时区。您必须配置服务器或JDBC 驱动程序
更新至
?useUnicode=true&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTC
在您的数据库名称后面的示例下面的行之后输入
databaseName=yourDbNameThenput?useUnicode=true&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTC