Proxool连接池超时

项目中需要用到分析功能，根据业务逻辑查询不同的数据表，然后再生成分析表。由于业务逻辑较多，查询耗时较长，第二天发现分析数据表没有生成。

异常信息如下：

[org.logicalcobwebs.proxool.db_master]#0001 was active for 322621 milliseconds and has been removed automaticaly. The Thread responsible was named 'Timer-0', and the last SQL it performed is 'select count(imei) as plusaskrun,count(distinct imei) as plusaskrundis from retvalue where wid = '10002004001701' and substring(time,1,10) ='2013-04-23' and serverplug!='' ; '.
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

Caused by: java.net.SocketException: socket closed
	at java.net.SocketInputStream.socketRead0(Native Method)
	at java.net.SocketInputStream.read(SocketInputStream.java:129)
	at com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:113)
	at com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:160)
	at com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:188)
	at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2452)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2906)

 找到原因发现是proxool将超过322621的连接池关闭了，并且不会重建，而整个流程在这个时间内还没有处理完所以报错。

修改proxool配置文件，给其添加maximum-active-time属性，默认配置为5分钟，将其修改为15分钟：

 <maximum-connection-count>500</maximum-connection-count>
    <!--配置最大连接时间  15分钟-->
    <maximum-active-time>900000</maximum-active-time>
    <simultaneous-build-throttle>50</simultaneous-build-throttle>
    <house-keeping-test-sql>select 0</house-keeping-test-sql>