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這篇文章給大家分享的是有關(guān)CDP安裝SMM服務(wù)啟動異常怎么辦的內(nèi)容。小編覺得挺實用的,因此分享給大家做個參考,一起跟隨小編過來看看吧。
報錯信息為:
Exception in thread "main" org.flywaydb.core.api.FlywayException: Unable to instantiate JDBC driver: com.mysql.cj.jdbc.Driver => Check whether the jar file is present
at org.flywaydb.core.internal.util.jdbc.DriverDataSource.<init>(DriverDataSource.java:142)
at org.flywaydb.core.api.configuration.ClassicConfiguration.setDataSource(ClassicConfiguration.java:1147)
at org.flywaydb.core.Flyway.setDataSource(Flyway.java:712)
at com.hortonworks.registries.storage.tool.sql.SchemaFlywayFactory.mysqlFlyway(SchemaFlywayFactory.java:58)
at com.hortonworks.registries.storage.tool.sql.SchemaFlywayFactory.get(SchemaFlywayFactory.java:44)
at com.hortonworks.registries.storage.tool.sql.TablesInitializer.main(TablesInitializer.java:176)
Caused by: org.flywaydb.core.api.FlywayException: Unable to instantiate class com.mysql.cj.jdbc.Driver : com.mysql.cj.jdbc.Driver
at org.flywaydb.core.internal.util.ClassUtils.instantiate(ClassUtils.java:61)
at org.flywaydb.core.internal.util.jdbc.DriverDataSource.<init>(DriverDataSource.java:132)
... 5 more
Caused by: java.lang.ClassNotFoundException: com.mysql.cj.jdbc.Driver
根據(jù)報錯分析是找不到JDBC驅(qū)動。在CDP7.1中SMM和SchemaRegistry必須將mysql-connector-java.jar放在自己的庫目錄中,而我們默認是放在/usr/share/java中的。所以這里我們需要把JDBC驅(qū)動放置到需要的庫中。
1.把JDBC驅(qū)動分別軟鏈到SMM和SchemaRegistry的庫目錄中
[root@cdh03 java]# cd /opt/cloudera/parcels/CDH/lib/schemaregistry/bootstrap/lib
[root@cdh03 lib]# ln -s /usr/share/java/mysql-connector-java.jar
[root@cdh03 lib]# cd /opt/cloudera/parcels/CDH/lib/schemaregistry/libs
[root@cdh03 libs]# ln -s /usr/share/java/mysql-connector-java.jar
[root@cdh03 libs]# cd /opt/cloudera/parcels/CDH/lib/streams_messaging_manager/bootstrap/lib
[root@cdh03 lib]# ln -s /usr/share/java/mysql-connector-java.jar
[root@cdh03 lib]# cd /opt/cloudera/parcels/CDH/lib/streams_messaging_manager/libs
[root@cdh03 libs]# ln -s /usr/share/java/mysql-connector-java.jar
2.配置完之后,從CM啟動服務(wù)測試
重啟成功,異常解決。
在CDP7.1中SMM和SchemaRegistry必須將JDBC驅(qū)動放在自己的庫目錄中,這跟以前默認的地址/usr/share/java不同,需要手動進行配置。
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