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Posted to user@struts.apache.org by Alex McLintock <al...@OWAL.co.uk> on 2002/09/03 18:44:29 UTC
Hanging Struts
Hi folks,
I have a simple Struts application which decides to hang and not serve
pages after some time. It seems to be database related because the index
pages which don't require the database still work, whereas the ones which
require the database don't respond.
The database appears to be still working since other things can access it
fine. A restart of tomcat fixes the problem - but that of course is hardly
a permanent solution.
I am using a fairly recent version of struts, Tomcat 4.13b, a farily recent
MySQL, RedHat 7.2, mm.jdbc driver,
I see on this mailing list that other people have had problems with hanging
if left "overnight". I have tried to use a "refresh" setting in my
struts-config.xml but that doesn;t seem to have cured the problem.
Alex
Openweb Analysts Ltd, London.
Software For Complex Websites http://www.OWAL.co.uk/
Open Source Software Companies please register here
http://www.OWAL.co.uk/oss_support/
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Re: Hanging Struts
Posted by slickdev <sl...@comcast.net>.
check your handling of how you close the db connections.
if you find that you can make the app hang after n db accesses, you can
troubleshoot by changing the maxconnections in the struts-config... assuming
that's where you specify the connection params.
----- Original Message -----
From: "Alex McLintock" <al...@OWAL.co.uk>
To: <st...@jakarta.apache.org>
Sent: Tuesday, September 03, 2002 11:44 AM
Subject: Hanging Struts
> Hi folks,
>
> I have a simple Struts application which decides to hang and not serve
> pages after some time. It seems to be database related because the index
> pages which don't require the database still work, whereas the ones which
> require the database don't respond.
>
> The database appears to be still working since other things can access it
> fine. A restart of tomcat fixes the problem - but that of course is hardly
> a permanent solution.
>
> I am using a fairly recent version of struts, Tomcat 4.13b, a farily
recent
> MySQL, RedHat 7.2, mm.jdbc driver,
>
> I see on this mailing list that other people have had problems with
hanging
> if left "overnight". I have tried to use a "refresh" setting in my
> struts-config.xml but that doesn;t seem to have cured the problem.
>
> Alex
>
>
>
>
>
>
> Openweb Analysts Ltd, London.
> Software For Complex Websites http://www.OWAL.co.uk/
> Open Source Software Companies please register here
> http://www.OWAL.co.uk/oss_support/
>
>
> --
> To unsubscribe, e-mail:
<ma...@jakarta.apache.org>
> For additional commands, e-mail:
<ma...@jakarta.apache.org>
>
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RE: Hanging Struts
Posted by Jacob Hookom <ho...@uwec.edu>.
I was having severe issues with special tags and the new tomcat (4.1+).
I found it to be an issue of the new tag pooling features and either my
own, or OS tags that I was using that weren't up to par. I ended up
getting memory spikes that were extremely drastic. I solved the problem
by reworking code to only use Struts or JSTL tags-- problems went away.
A lot of those issues came up while stress testing special
iterative-type tags.
-Jacob
| -----Original Message-----
| From: James Mitchell [mailto:jmitchtx@telocity.com]
| Sent: Tuesday, September 03, 2002 12:08 PM
| To: Struts Users Mailing List
| Subject: RE: Hanging Struts
|
| I had a similar problem a few weeks ago (Tomcat 4.1.17b).
| The log files showed signs of a serious memory leak. I had to restart
| Tomcat about every 3 to 4 days, until I moved everything to Tomcat
4.0.4.
| Now it just keeps on chuggin....
|
| http://www.open-tools.org/struts-atlanta
|
|
| My best guestimate is that it was a problem with Tomcat.
|
|
|
| James Mitchell
| Software Engineer\Struts Evangelist
| Struts-Atlanta, the "Open Minded Developer Network"
| http://www.open-tools.org/struts-atlanta
|
|
|
|
| > -----Original Message-----
| > From: Alex McLintock [mailto:alex@OWAL.co.uk]
| > Sent: Tuesday, September 03, 2002 12:44 PM
| > To: struts-user@jakarta.apache.org
| > Subject: Hanging Struts
| >
| >
| > Hi folks,
| >
| > I have a simple Struts application which decides to hang and not
serve
| > pages after some time. It seems to be database related because the
index
| > pages which don't require the database still work, whereas the ones
| which
| > require the database don't respond.
| >
| > The database appears to be still working since other things can
access
| it
| > fine. A restart of tomcat fixes the problem - but that of course
| > is hardly
| > a permanent solution.
| >
| > I am using a fairly recent version of struts, Tomcat 4.13b, a
| > farily recent
| > MySQL, RedHat 7.2, mm.jdbc driver,
| >
| > I see on this mailing list that other people have had problems
| > with hanging
| > if left "overnight". I have tried to use a "refresh" setting in my
| > struts-config.xml but that doesn;t seem to have cured the problem.
| >
| > Alex
| >
| >
| >
| >
| >
| >
| > Openweb Analysts Ltd, London.
| > Software For Complex Websites http://www.OWAL.co.uk/
| > Open Source Software Companies please register here
| > http://www.OWAL.co.uk/oss_support/
| >
| >
| > --
| > To unsubscribe, e-mail:
| <ma...@jakarta.apache.org>
| For additional commands, e-mail:
| <ma...@jakarta.apache.org>
|
|
|
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RE: Hanging Struts
Posted by James Mitchell <jm...@telocity.com>.
I had a similar problem a few weeks ago (Tomcat 4.1.17b).
The log files showed signs of a serious memory leak. I had to restart
Tomcat about every 3 to 4 days, until I moved everything to Tomcat 4.0.4.
Now it just keeps on chuggin....
http://www.open-tools.org/struts-atlanta
My best guestimate is that it was a problem with Tomcat.
James Mitchell
Software Engineer\Struts Evangelist
Struts-Atlanta, the "Open Minded Developer Network"
http://www.open-tools.org/struts-atlanta
> -----Original Message-----
> From: Alex McLintock [mailto:alex@OWAL.co.uk]
> Sent: Tuesday, September 03, 2002 12:44 PM
> To: struts-user@jakarta.apache.org
> Subject: Hanging Struts
>
>
> Hi folks,
>
> I have a simple Struts application which decides to hang and not serve
> pages after some time. It seems to be database related because the index
> pages which don't require the database still work, whereas the ones which
> require the database don't respond.
>
> The database appears to be still working since other things can access it
> fine. A restart of tomcat fixes the problem - but that of course
> is hardly
> a permanent solution.
>
> I am using a fairly recent version of struts, Tomcat 4.13b, a
> farily recent
> MySQL, RedHat 7.2, mm.jdbc driver,
>
> I see on this mailing list that other people have had problems
> with hanging
> if left "overnight". I have tried to use a "refresh" setting in my
> struts-config.xml but that doesn;t seem to have cured the problem.
>
> Alex
>
>
>
>
>
>
> Openweb Analysts Ltd, London.
> Software For Complex Websites http://www.OWAL.co.uk/
> Open Source Software Companies please register here
> http://www.OWAL.co.uk/oss_support/
>
>
> --
> To unsubscribe, e-mail:
<ma...@jakarta.apache.org>
For additional commands, e-mail:
<ma...@jakarta.apache.org>
--
To unsubscribe, e-mail: <ma...@jakarta.apache.org>
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