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c3p0 resource pooling

Martin, Christopher C. (CCI-Southwest)

 

I am seeing some memory leaks connected to the usage of c3p0. Is there any documentation  available for how the wrapper uses this library ? Is there any way to make sure resources are released ?

 

Thanks

 


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Re: c3p0 resource pooling

Maxime
Hello

The last version of the Java Service Wrapper (v. 3.5.28) fixes a memory leak that was happening on a limited number of Linux distributions based on Red Hat, like CentOS.

May I ask on which OS did you experience this problem? Could you also specify the version of the Wrapper you are using?

Unfortunately there is no official documentation available for how the wrapper uses the c3p0 library.

Please provide details on how you noticed this memory leak (for example: did you notice it from the list of process ? how fast the memory usage is increasing ? etc.).

Thank you.

Best Regards,

Maxime


On Fri, Jan 22, 2016 at 2:45 AM, Martin, Christopher C. (CCI-Southwest) <[hidden email]> wrote:

 

I am seeing some memory leaks connected to the usage of c3p0. Is there any documentation  available for how the wrapper uses this library ? Is there any way to make sure resources are released ?

 

Thanks

 


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Re: c3p0 resource pooling

Martin, Christopher C. (CCI-Southwest)

May I ask on which OS did you experience this problem? Could you also specify the version of the Wrapper you are using? 3.5.7

Unfortunately there is no official documentation available for how the wrapper uses the c3p0 library.

Please provide details on how you noticed this memory leak (for example: did you notice it from the list of process ? how fast the memory usage is increasing ? etc.).  Getting a heapdump and using eclipse Memory Analyzer

 

One week later

 

 

BasicResourcePool grew from to 150 - 246  instances referenced

 

 

 

From: Maxime [mailto:[hidden email]]
Sent: Sunday, January 24, 2016 6:40 PM
To: [hidden email]
Subject: Re: [Wrapper-user] c3p0 resource pooling

 

Hello

The last version of the Java Service Wrapper (v. 3.5.28) fixes a memory leak that was happening on a limited number of Linux distributions based on Red Hat, like CentOS.

May I ask on which OS did you experience this problem? Could you also specify the version of the Wrapper you are using?

Unfortunately there is no official documentation available for how the wrapper uses the c3p0 library.

Please provide details on how you noticed this memory leak (for example: did you notice it from the list of process ? how fast the memory usage is increasing ? etc.).

Thank you.

Best Regards,

Maxime

 

On Fri, Jan 22, 2016 at 2:45 AM, Martin, Christopher C. (CCI-Southwest) <[hidden email]> wrote:

 

I am seeing some memory leaks connected to the usage of c3p0. Is there any documentation  available for how the wrapper uses this library ? Is there any way to make sure resources are released ?

 

Thanks

 


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Re: c3p0 resource pooling

Martin, Christopher C. (CCI-Southwest)

Also this was Windows 7 pro

 

From: Martin, Christopher C. (CCI-Southwest) [mailto:[hidden email]]
Sent: Monday, January 25, 2016 9:11 AM
To: [hidden email]
Subject: Re: [Wrapper-user] c3p0 resource pooling

 

May I ask on which OS did you experience this problem? Could you also specify the version of the Wrapper you are using? 3.5.7

Unfortunately there is no official documentation available for how the wrapper uses the c3p0 library.

Please provide details on how you noticed this memory leak (for example: did you notice it from the list of process ? how fast the memory usage is increasing ? etc.).  Getting a heapdump and using eclipse Memory Analyzer

 

One week later

 

 

BasicResourcePool grew from to 150 - 246  instances referenced

 

 

 

From: Maxime [[hidden email]]
Sent: Sunday, January 24, 2016 6:40 PM
To: [hidden email]
Subject: Re: [Wrapper-user] c3p0 resource pooling

 

Hello

The last version of the Java Service Wrapper (v. 3.5.28) fixes a memory leak that was happening on a limited number of Linux distributions based on Red Hat, like CentOS.

May I ask on which OS did you experience this problem? Could you also specify the version of the Wrapper you are using?

Unfortunately there is no official documentation available for how the wrapper uses the c3p0 library.

Please provide details on how you noticed this memory leak (for example: did you notice it from the list of process ? how fast the memory usage is increasing ? etc.).

Thank you.

Best Regards,

Maxime

 

On Fri, Jan 22, 2016 at 2:45 AM, Martin, Christopher C. (CCI-Southwest) <[hidden email]> wrote:

 

I am seeing some memory leaks connected to the usage of c3p0. Is there any documentation  available for how the wrapper uses this library ? Is there any way to make sure resources are released ?

 

Thanks

 


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Re: c3p0 resource pooling

Maxime
Martin,

Thank you for the information.
Looking at the screenshots, it seems that the issue is happening in the c3p0 library, not the Wrapper itself.
Did the Wrapper restart the JVM during the week ? You may find more information about the state of your Java application in the log files of the Wrapper.
If you want to investigate this matter further, please send the log files to [hidden email].

Best Regards,

Maxime

On Tue, Jan 26, 2016 at 1:35 AM, Martin, Christopher C. (CCI-Southwest) <[hidden email]> wrote:

Also this was Windows 7 pro

 

From: Martin, Christopher C. (CCI-Southwest) [mailto:[hidden email]]
Sent: Monday, January 25, 2016 9:11 AM


To: [hidden email]
Subject: Re: [Wrapper-user] c3p0 resource pooling

 

May I ask on which OS did you experience this problem? Could you also specify the version of the Wrapper you are using? 3.5.7

Unfortunately there is no official documentation available for how the wrapper uses the c3p0 library.

Please provide details on how you noticed this memory leak (for example: did you notice it from the list of process ? how fast the memory usage is increasing ? etc.).  Getting a heapdump and using eclipse Memory Analyzer

 

One week later

 

 

BasicResourcePool grew from to 150 - 246  instances referenced

 

 

 

From: Maxime [[hidden email]]
Sent: Sunday, January 24, 2016 6:40 PM
To: [hidden email]
Subject: Re: [Wrapper-user] c3p0 resource pooling

 

Hello

The last version of the Java Service Wrapper (v. 3.5.28) fixes a memory leak that was happening on a limited number of Linux distributions based on Red Hat, like CentOS.

May I ask on which OS did you experience this problem? Could you also specify the version of the Wrapper you are using?

Unfortunately there is no official documentation available for how the wrapper uses the c3p0 library.

Please provide details on how you noticed this memory leak (for example: did you notice it from the list of process ? how fast the memory usage is increasing ? etc.).

Thank you.

Best Regards,

Maxime

 

On Fri, Jan 22, 2016 at 2:45 AM, Martin, Christopher C. (CCI-Southwest) <[hidden email]> wrote:

 

I am seeing some memory leaks connected to the usage of c3p0. Is there any documentation  available for how the wrapper uses this library ? Is there any way to make sure resources are released ?

 

Thanks

 


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[hidden email]
https://lists.sourceforge.net/lists/listinfo/wrapper-user

 


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Re: c3p0 resource pooling

Martin, Christopher C. (CCI-Southwest)

Hello Maxime,

 

To answer your questions,

 

“Looking at the screenshots, it seems that the issue is happening in the c3p0 library, not the Wrapper itself.”  Ok, the trace does not show where this is being used so it must be Quartz that is using it.


Did the Wrapper restart the JVM during the week ? No

 

From: Maxime [mailto:[hidden email]]
Sent: Tuesday, January 26, 2016 12:24 AM
To: [hidden email]
Subject: Re: [Wrapper-user] c3p0 resource pooling

 

Martin,

Thank you for the information.
Looking at the screenshots, it seems that the issue is happening in the c3p0 library, not the Wrapper itself.
Did the Wrapper restart the JVM during the week ? You may find more information about the state of your Java application in the log files of the Wrapper.
If you want to investigate this matter further, please send the log files to [hidden email].

Best Regards,

Maxime

 

On Tue, Jan 26, 2016 at 1:35 AM, Martin, Christopher C. (CCI-Southwest) <[hidden email]> wrote:

Also this was Windows 7 pro

 

From: Martin, Christopher C. (CCI-Southwest) [mailto:[hidden email]]
Sent: Monday, January 25, 2016 9:11 AM


To: [hidden email]
Subject: Re: [Wrapper-user] c3p0 resource pooling

 

May I ask on which OS did you experience this problem? Could you also specify the version of the Wrapper you are using? 3.5.7

Unfortunately there is no official documentation available for how the wrapper uses the c3p0 library.

Please provide details on how you noticed this memory leak (for example: did you notice it from the list of process ? how fast the memory usage is increasing ? etc.).  Getting a heapdump and using eclipse Memory Analyzer

 

One week later

 

 

BasicResourcePool grew from to 150 - 246  instances referenced

 

 

 

From: Maxime [[hidden email]]
Sent: Sunday, January 24, 2016 6:40 PM
To: [hidden email]
Subject: Re: [Wrapper-user] c3p0 resource pooling

 

Hello

The last version of the Java Service Wrapper (v. 3.5.28) fixes a memory leak that was happening on a limited number of Linux distributions based on Red Hat, like CentOS.

May I ask on which OS did you experience this problem? Could you also specify the version of the Wrapper you are using?

Unfortunately there is no official documentation available for how the wrapper uses the c3p0 library.

Please provide details on how you noticed this memory leak (for example: did you notice it from the list of process ? how fast the memory usage is increasing ? etc.).

Thank you.

Best Regards,

Maxime

 

On Fri, Jan 22, 2016 at 2:45 AM, Martin, Christopher C. (CCI-Southwest) <[hidden email]> wrote:

 

I am seeing some memory leaks connected to the usage of c3p0. Is there any documentation  available for how the wrapper uses this library ? Is there any way to make sure resources are released ?

 

Thanks

 


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_______________________________________________
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[hidden email]
https://lists.sourceforge.net/lists/listinfo/wrapper-user

 


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