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Posted to dev@phoenix.apache.org by "lichenglin (JIRA)" <ji...@apache.org> on 2016/04/27 10:04:12 UTC
[jira] [Created] (PHOENIX-2860) The phoenix driver may cause memory
leak when redeploy By tomcat
lichenglin created PHOENIX-2860:
-----------------------------------
Summary: The phoenix driver may cause memory leak when redeploy By tomcat
Key: PHOENIX-2860
URL: https://issues.apache.org/jira/browse/PHOENIX-2860
Project: Phoenix
Issue Type: Bug
Affects Versions: 4.6.0
Environment: tomcat7
Reporter: lichenglin
I'm using org.apache.commons.dbcp.BasicDataSource to query the server.
here is my code in spring.xml
{code:xml}
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="org.apache.phoenix.jdbc.PhoenixDriver" />
<property name="url" value="jdbc:phoenix:master" />
<property name="username" value="" />
<property name="password" value="" />
</bean>
{code}
But when I used jenkins to redeploy the war ,I got this message in the tomcat's log
{code}
27-Apr-2016 15:55:21.579 WARNING [http-nio-9080-exec-36] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [console] appears to have started a thread named [Timer for 'phoenix' metrics system] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
java.lang.Object.wait(Native Method)
java.util.TimerThread.mainLoop(Timer.java:552)
java.util.TimerThread.run(Timer.java:505)
{code}
I'm trying to close the driver when the servlet shutdown with the code
{code}
@EventListener({ ContextStoppedEvent.class, ContextClosedEvent.class })
public void handleContextStart(ApplicationContextEvent e)
throws SchedulerException, InterruptedException, SQLException, IOException {
if (deploy) {
System.out.println("###################");
source.close();
PhoenixDriver.INSTANCE.close();
}
}
{code}
It doesn't work!!
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