On 22/03/2013 14:56, Julien Martin wrote:
> Hi,
> You mean if I set maxActive to 1?
> J.
>
> 2013/3/22 Pid <p...@pidster.com>
>
>> On 22/03/2013 14:42, Julien Martin wrote:
>>> @Chuck: thanks for the link. I have read it. Umm... the thing is I don't
>>> close my connection manually. I use Spring. Here is my configuration:
>>>
>>> <bean class="org.apache.commons.dbcp.BasicDataSource"
>>> destroy-method="close" id="dataSource">
>>> <property name="driverClassName" value="${database.driverClassName}" />
>>> <property name="url" value="${database.url}" />
>>> <property name="username" value="${database.username}" />
>>> <property name="password" value="${database.password}" />
>>> <property name="testOnBorrow" value="true" />
>>> <property name="testOnReturn" value="true" />
>>> <property name="testWhileIdle" value="true" />
>>> <property name="timeBetweenEvictionRunsMillis" value="1800000" />
>>> <property name="numTestsPerEvictionRun" value="3" />
>>> <property name="minEvictableIdleTimeMillis" value="1800000" />
>>> <property name="validationQuery" value="SELECT 1" />
>>> <property name="maxActive" value="2"/>
>>> <property name="logAbandoned" value="true"/>
>>> <property name="removeAbandoned" value="true"/>
>>> </bean>
>>
>> What happens if you set it to 1?
Yes, I meant maxActive, sorry.
Why use a DeferredResult here if you're just setting the result
synchronously and inline anyway? You may as well just remove the key
from the map manually. Am I missing something?
p
>>> Any idea what I am getting wrong?
>>>
>>> @Daniel, I have configured jmx with Spring and I get a numIdle of 0 and
>>> numActive of 2 after the problem occurs. This confirms what you and Chuck
>>> say: my app leaks db connections.
>>>
>>> However, I am still not sure why my app leaks the connections. I use the
>>> default Spring configuration...
>>>
>>> Sorry: it is slightly offtopic now. I guess this is no longer a Tomcat
>>> question so I should post it elsewhere.
>>>
>>> Julien.
>>>
>>>
>>> 2013/3/22 Caldarale, Charles R <chuck.caldar...@unisys.com>
>>>
>>>>> From: Julien Martin [mailto:bal...@gmail.com]
>>>>> Subject: Re: My use of Spring MVC's DeferredResult class causes Tomcat
>>>> 7.0.35 to crash silently
>>>>
>>>>> "http-bio-8080-exec-10" daemon prio=10 tid=0x00007f68840a2800
>> nid=0x41b5
>>>> in
>>>>> Object.wait() [0x00007f690cc57000]
>>>>> java.lang.Thread.State: WAITING (on object monitor)
>>>>> at java.lang.Object.wait(Native Method)
>>>>> - waiting on <0x00000007e8fc4650> (a
>>>>> org.apache.commons.pool.impl.GenericObjectPool$Latch)
>>>>> at java.lang.Object.wait(Object.java:503)
>>>>> at
>>>>
>> org.apache.commons.pool.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:1115)
>>>>> - locked <0x00000007e8fc4650> (a
>>>> org.apache.commons.pool.impl.GenericObjectPool$Latch)
>>>>> at
>>>>
>> org.apache.commons.dbcp.PoolingDataSource.getConnection(PoolingDataSource.java:106)
>>>>
>>>> Looks like you're leaking database connections, likely by not returning
>>>> them to the pool. Read Chris' article on how to do it right:
>>>>
>>>>
>>>>
>> http://blog.christopherschultz.net/index.php/2009/03/16/properly-handling-pooled-jdbc-connections/
>>>>
>>>> - Chuck
>>>>
>>>>
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>>>
>>
>>
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