Hibernate 对从底层连接池获取的数据库连接的责任是什么。它是否在使用之前测试连接是否关闭?如果是这样,从池中获取另一个连接?
我在下面包含了错误和确认信息。关于我可以从哪里开始解决这个问题的任何想法都会非常有帮助。以及关于我们正在使用的 SQL Server 驱动程序设置的任何建议。
来自 Catalina 日志:
04-Nov-2010 21:54:52.691 WARNING org.apache.tomcat.jdbc.pool.ConnectionPool.abandon Connection has been abandoned PooledConnection[ConnectionID:8]:java.lang.Exception at org.apache.tomcat.jdbc.pool.ConnectionPool.getThreadDump(ConnectionPool.java:926) at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:681) at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:545) at org.apache.tomcat.jdbc.pool.ConnectionPool.getConnection(ConnectionPool.java:166) at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:106)
from our application log:
2010-11-04 21:54:52,705 [tomcat-http--18] WARN util.JDBCExceptionReporter - SQL Error: 0, SQLState: 08S01 2010-11-04 21:54:52,707 [tomcat-http--18] ERROR util.JDBCExceptionReporter - Socket closed 2010-11-04 21:54:52,708 [tomcat-http--18] ERROR transaction.JDBCTransaction - JDBC rollback failed java.sql.SQLException: Connection has already been closed. at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:112) at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:94) at org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor.invoke(AbstractCreateStatementInterceptor.java:71) at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:94) at org.apache.tomcat.jdbc.pool.interceptor.ConnectionState.invoke(ConnectionState.java:132) at $Proxy38.rollback(Unknown Source) at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:217) at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:196) at org.springframework.orm.hibernate3.HibernateTransactionManager.doRollback(HibernateTransactionManager.java:676) at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:845) at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:822) at org.springframework.transaction.interceptor.TransactionAspectSupport.completeTransactionAfterThrowing(TransactionAspectSupport.java:412) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:111) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:625)
The configuration:
<Resource defaultAutoCommit="false" defaultReadOnly="false"
defaultTransactionIsolation="SERIALIZABLE"
driverClassName="com.microsoft.sqlserver.jdbc.SQLServerDriver"
factory="org.apache.tomcat.jdbc.pool.DataSourceFactory"
fairQueue="false" initialSize="10"
jdbcInterceptors="ConnectionState;StatementFinalizer"
jmxEnabled="true" logAbandoned="true" maxActive="100"
maxIdle="10" maxWait="30000"
minEvictableIdleTimeMillis="10000" minIdle="10"
name="com.ourcompany.ap.shoppingcart/datasource"
password="somePassword" removeAbandoned="true"
removeAbandonedTimeout="60" testOnBorrow="true"
testOnReturn="false" testWhileIdle="false"
timeBetweenEvictionRunsMillis="5000"
type="javax.sql.DataSource"
url="jdbc:sqlserver://approd\approd;databaseName=prod"
useEquals="false" username="AccessPointNet"
validationInterval="30000" validationQuery="SELECT 1"/>`
最佳答案
我有一个类似的问题,通过将 removeAbandonedTimeout 的值增加到一个更高的数字来解决。我们面临的问题是由于查询花费的时间比上述超时时间长。
关于java - 基础 - 排除 Hibernate/JDBC 连接池问题,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/4107275/