运行opentaps时无法从池中获取新连接

Question

我正在尝试使用MySQL 5.5.43在Ubuntu 14.04服务器上安装opentaps。我正在使用putty从RD到Windows的ubuntu服务器并执行所有必需的更改。

我已经成功安装了MySQL，创建了数据库“opentaps”，用密码“opentaps”创建了用户“opentaps”，为用户授予了权限。

我按照以下说明更改了文件框架/ entity / config / entityengine.xml： http://www.opentaps.org/docs/index.php/Using_opentaps_ERP_%2B_CRM_with_MySQL

运行“ant run-install”后，我收到了这个错误：

[java] ---- exception report ----------------------------------------------------------
     [java] Failure in findListIteratorByCondition operation for entity [DynamicView]: org.ofbiz.entity.GenericDataSourceException: Unable to esablish a connection with the database. (Unable to acquire a new connection from the pool). Rolling back transaction.
     [java] Exception: org.ofbiz.entity.GenericDataSourceException
     [java] Message: Unable to esablish a connection with the database. (Unable to acquire a new connection from the pool)
     [java] ---- cause ---------------------------------------------------------------------
     [java] Exception: java.sql.SQLException
     [java] Message: Unable to acquire a new connection from the pool
     [java] ---- cause ---------------------------------------------------------------------
     [java] Exception: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException
     [java] Message: Could not create connection to database server. Attempted reconnect 3 times. Giving up.
     [java] ---- cause ---------------------------------------------------------------------
     [java] Exception: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException
     [java] Message: Communications link failure
     [java]
     [java] The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
     [java] ---- cause ---------------------------------------------------------------------
     [java] Exception: java.net.ConnectException
     [java] Message: Connection refused

请帮帮我。 感谢

Answer 1

我得到了我面临的问题的解决方案。

之所以发生这种情况，是因为我在Ubuntu服务器上安装了opentaps，而我在“ entityengine.xml ”配置文件中使用了“ 127.0.0.1 ”IP地址。而它需要使用正在进行安装的服务器的IP地址。如：

jdbc-uri =“jdbc：mysql：// 服务器IP / opentaps？autoReconnect = true＆amp; useOldAliasMetadataBehavior = true”

还需要为MySQL用户授予服务器IP地址的授权权限。如：

将opentaps。*的所有权限授予'opentaps'@'服务器IP '，由'opentaps-password'用grant选项标识;

谢谢。