2013-10-18 48 views
5

我使用這個配置一個Grails 2.2.3應用程序連接到MySQL數據庫:Grails的2.3.0和MySQL連接超時

production { 
    dataSource { 
     dbCreate = "update" // one of 'create', 'create-drop','update' 
     url = "jdbc:mysql://localhost/database?autoReconnect=true" 

     pooled = true 
     properties { 
      maxActive = 50 
      maxIdle = 25 
      minIdle = 5 
      initialSize = 5 
      minEvictableIdleTimeMillis = 1800000 
      timeBetweenEvictionRunsMillis = 1800000 
      maxWait = 10000 

     } 


    } 

} 

升級到Grails的2.3.0這個停止工作後和週末在應用程序處於非活動狀態我得到以下例外:

Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 50,139,380 milliseconds ago. The last packet sent successfully to the server was 50,139,380 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem. 
at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) 
at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1116) 
at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:3352) 
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1971) 
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2151) 
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2619) 
at com.mysql.jdbc.ConnectionImpl.setAutoCommit(ConnectionImpl.java:4997) 
... 5 more 
Caused by: java.net.SocketException: Write failed: Broken pipe 
at jrockit.net.SocketNativeIO.socketWrite(SocketNativeIO.java:46) 

任何想法?

+0

的Grails 2.3.1工作已經被釋放,所以你可能會考慮更新到第一位。 – str

+0

我試過了,但是我在2.3.1上也得到了同樣的錯誤... – Luca

+0

你看過這張票嗎: http://stackoverflow.com/questions/18078777/tomcat-7-0-42-pooling -hibernate-4-2-mysql-rock-solid-autoreconnect-solution 它可以幫助你! –

回答

5

嘗試添加下面的「testOn」屬性以連接池的配置:

properties { 
    ... 
    testOnBorrow = true 
    testWhileIdle = true 
    testOnReturn = false 
    validationQuery = "SELECT 1" 
    } 

這是值得的各種組合嘗試這些標誌。爲了在您的環境中實現最佳性能,可能需要進行更改

1

這爲我們在過去

 properties { 
      validationQuery="select 1" 
      testWhileIdle=true 
      timeBetweenEvictionRunsMillis=60000 
     }