java.sql.SQLRecoverableException:已关闭的连接

Question

我在Oracle 11中使用jboss7.0.2 final.目前我面临一个随机发生的问题.但在重负载期间,此错误跟踪会不断增长.试过这么多方法都不会成功.

MyDatasource配置:

<?xml version="1.0" encoding="UTF-8"?>
<datasource jndi-name="sportPool" pool-name="sportPool" enabled="true" jta="true" use-java-context="true" use-ccm="true">
    <connection-url>jdbc:oracle:thin:@10.11.252.200:1521:sportsdb</connection-url>
    <driver>oracleDriver</driver>
    <pool>
        <min-pool-size>1</min-pool-size>
        <max-pool-size>75</max-pool-size>
        <prefill>false</prefill>
        <use-strict-min>false</use-strict-min>
        <flush-strategy>FailingConnectionOnly</flush-strategy>
    </pool>
    <security>
        <user-name>mportal</user-name>
        <password>mobile</password>
    </security>
    <timeout>
        <idle-timeout-minutes>60000</idle-timeout-minutes>
    </timeout>
</datasource>

堆栈跟踪:

nested exception is java.sql.SQLRecoverableException: Closed Connection
        at org.springframework.jdbc.support.SQLExceptionSubclassTranslator.translate(SQLExceptionSubclassTranslator.java:82)
        at org.springframework.jdbc.support.SQLErrorCodeSQLExceptionTranslator.translate(SQLErrorCodeSQLExceptionTranslator.java:237)
        at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:604)
        at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:638)
        at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:667)
        at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:683)

        ... 50 more
Caused by: java.sql.SQLRecoverableException: Closed Connection
        at oracle.jdbc.driver.OracleStatement.ensureOpen(OracleStatement.java:4051)
        at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3563)
        at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:3628)
        at oracle.jdbc.driver.OraclePreparedStatementWrapper.executeQuery(OraclePreparedStatementWrapper.java:1493)
        at org.jboss.jca.adapters.jdbc.CachedPreparedStatement.executeQuery(CachedPreparedStatement.java:111)
        at org.jboss.jca.adapters.jdbc.WrappedPreparedStatement.executeQuery(WrappedPreparedStatement.java:462)
        at org.springframework.jdbc.core.JdbcTemplate$1.doInPreparedStatement(JdbcTemplate.java:645)
        at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:588)
        ... 56 more

Answer 1

1. 查看数据库设置 - 数据库中设置的超时可能比数据源部署描述符中设置的超时短,数据库关闭连接.

2. 检查您的网络 - 您的防火墙/路由设置可能有问题,并且在路由中间的某处关闭/丢弃连接.

3. 看看这个链接JBoss 7 Datasource Configuration.有一种配置数据源描述符的方法,强制JBoss在从池中检出连接时检查连接.使用valid-connection-checker(更快)或check-valid-connection-sql(更慢)设置并设置

   <valid-connection-checker>
       org.jboss.resource.adapter.jdbc.vendor.OracleValidConnectionChecker
   </valid-connection-checker>
   

   要么

   <check-valid-connection-sql>
       SELECT 1 FROM DUAL
   </check-valid-connection-sql>