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Home: Perl Programming Help: Intermediate:
dump files - HDMP File extension related to perl

 



amar avula
Novice

Feb 23, 2010, 4:46 PM

Post #1 of 4 (951 views)
dump files - HDMP File extension related to perl Can't Post

Hi All,

We have observed that dump files of .5 GB getting generated every 15 mins in our windows server . The wiered part is that we dont have any hand written scripts except Active perl version 5.6.1



Example::Dump file perl.exe.20100223-201702-00.hdmp file of .5 GB Generated at 2/23/2010 3:17 PM.

Does anyone faced this type of problem and not sure of how to debug this error and the solutions.



Any help is highly appreciated ..


FishMonger
Veteran / Moderator

Feb 23, 2010, 8:05 PM

Post #2 of 4 (949 views)
Re: [amar avula] dump files - HDMP File extension related to perl [In reply to] Can't Post

First step is to determine which script is generating the dump file. Once that is determined, you could troubleshoot that script.

Do you know which script(s) to look at?

5.6.1 is about 10 years old. Since then, there have been numerous improvements and bug fixes. It's possible that the dump files are due to bugs in perl.

I'd highly recommend upgrading to at least 5.8.8, preferably 5.10.1


amar avula
Novice

Feb 24, 2010, 3:20 AM

Post #3 of 4 (941 views)
Re: [FishMonger] dump files - HDMP File extension related to perl [In reply to] Can't Post

There is no scripts that are present in this server other than active perl installed scripts.

How can i get the information of which script is generating the perl.exe dump file every 15 mins??


FishMonger
Veteran / Moderator

Feb 24, 2010, 4:55 AM

Post #4 of 4 (938 views)
Re: [amar avula] dump files - HDMP File extension related to perl [In reply to] Can't Post


In Reply To
There is no scripts that are present in this server other than active perl installed scripts.

What does that mean? Are you saying that the only scripts on the server are the core Perl modules i.e., .pm files?

Activeperl does not arbitrarily execute perl scripts on its own.


In Reply To
How can i get the information of which script is generating the perl.exe dump file every 15 mins??

If it's that consistent, then it's probably being launched via a scheduled task.

Have you checked Scheduled Tasks, or Task Manager, or Event Viewer?

Is this a web server? If so, have you checked the cgi scripts?

As I mentioned in my first post, 5.6.1 is old and buggy. The buggy portions of the perl.exe binary are probably the real cause of the dump files. Upgrading to a new version will certainly fix some (or most) of the problems. However, you should read the release notes to learn about the changes that have been made.

http://aspn.activestate.com/ASPN/Downloads/ActivePerl/PPM/

Since 5.6.x, 5.8.x, and 5.10.x are not binary compatible with each other, upgrading in this case really means preforming a clean install of perl.

 
 


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