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<td class="page-title-pattern-first-line " style="padding: 0px; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://hibernate.atlassian.net/browse/HHH" style="color: #3b73af; text-decoration: none">Hibernate ORM</a> / <a href="https://hibernate.atlassian.net/browse/HHH-9047" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-static-bug-ece5fba6-27d3-4f26-a27f-e5ff906da4ea" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom" /></a> <a href="https://hibernate.atlassian.net/browse/HHH-9047" style="color: #3b73af; text-decoration: none">HHH-9047</a>
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<td style="vertical-align: top;; padding: 0px; border-collapse: collapse; padding-right: 5px; font-size: 20px; line-height: 30px; mso-line-height-rule: exactly" class="page-title-pattern-header-container"> <span class="page-title-pattern-header" style="font-family: Arial, sans-serif; padding: 0; font-size: 20px; line-height: 30px; mso-text-raise: 2px; mso-line-height-rule: exactly; vertical-align: middle"> <a href="https://hibernate.atlassian.net/browse/HHH-9047" style="color: #3b73af; text-decoration: none">When manually set transaction boundaries,hibernate don't release connection automatically</a> </span>
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Issue Type:
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Affects Versions:
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4.3.4, 4.0.1
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Assignee:
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Unassigned
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Components:
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entity-manager
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Created:
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14/Mar/14 4:14 AM
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Environment:
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Spring3.1.1+JPA2.0+Hibernate 4.3.4 ,postgresql database 9.1.2
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hibernate manually transaction connection release
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Priority:
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Reporter:
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<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="will_ao" id="email_will_ao" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=will_ao" style="color:#6c797f;; color: #3b73af; text-decoration: none">will ao</a>
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">code is simply like that : (not use @Transactional)<br /> =========java code=============<br /> em.getTransaction().begin();<br /> TypedQuery<TaskEntity> query1 = em.createQuery(queryHQL, TaskEntity.class).setMaxResults(500);<br /> em.getTransaction().commit();<br /> ==========java code======</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">==========c3p0 configuration========<br /> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"<br /> destroy-method="close"><br /> <property name="driverClass" value="$</p> {jdbc.driverClassName}
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">" /><br /> <property name="jdbcUrl" value="$</p> {jdbc.url}
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">" /><br /> <property name="user" value="$</p> {jdbc.username}
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">" /><br /> <property name="password" value="$</p> {jdbc.password}
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">" /><br /> <property name="minPoolSize" value="2" /><br /> <property name="maxPoolSize" value="5" /><br /> <property name="maxStatements" value="0" /><br /> <property name="idleConnectionTestPeriod" value="10" /><br /> <property name="maxIdleTime" value="20" /><br /> <property name="maxConnectionAge" value="7200" /><br /> </bean><br /> ==========c3p0 configuration===========</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">after I committed, I check c3p0 log and find that database connection don't release automatically,and exhaust all my production database connection,then system hung up. .</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">but all work well in hibernate 3.5.1;<br /> after i upgrade to Hibernate 4.3.4 ,this not work. I find a way to fix it,but ugly.I wish hibernate will fix this bug in next version.</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0"> try</p> { em.getTransaction().begin(); TypedQuery<TaskEntity> query1 = em.createQuery(queryHQL, TaskEntity.class).setMaxResults(500); em.getTransaction().commit(); logger.debug("em.getTransaction().isActive()=" + em.getTransaction().isActive()); logger.debug("em.isOpen()===" + em.isOpen()); list = query1.getResultList(); logger.debug("list====size==" + list.size()); }
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0"> finally<br /> {<br /> if (em != null && em.isOpen()) {<br /> try</p> { em.close(); }
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">catch(Exception e){</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0"> }<br /> }<br /> }</p>
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