登录就进入配置页面，提示知识库升级，但是走到最后一步总通不过

错误信息如下：

ERROR logExceptions(org.hibernate.util.JDBCExceptionReporter:78) - Parameter of prepared statement which is set through mysql_send_long_data() is longer than 'max_long_data_size' bytes

ERROR performExecutions(org.hibernate.event.def.AbstractFlushingEventListener:301) - Could not synchronize database state with session
org.hibernate.exception.GenericJDBCException: Could not execute JDBC batch update

Caused by: java.sql.BatchUpdateException: Parameter of prepared statement which is set through mysql_send_long_data() is longer than 'max_long_data_size' bytes

Caused by: java.sql.SQLException: Parameter of prepared statement which is set through mysql_send_long_data() is longer than 'max_long_data_size' bytes

ERROR (smartbi.config.BIConfigService - 知识库访问异常smartbi.SmartbiException: 知识库访问异常

Caused by: org.hibernate.exception.GenericJDBCException: Could not execute JDBC batch update

Caused by: java.sql.BatchUpdateException: Parameter of prepared statement which is set through mysql_send_long_data() is longer than 'max_long_data_size' bytes

Caused by: java.sql.SQLException: Parameter of prepared statement which is set through mysql_send_long_data() is longer than 'max_long_data_size' bytes

库限制数据大小了，可以修改数据库的max_allowed_packet参数解决，具体可以参考wiki：https://wiki.smartbi.com.cn/page ... amp;pageId=76678392