BlogEngine.NET memory leak fix

7/9/2008 6:08:08 AM #

Hi Mads

It would be great if you could do a post on the (general) issue and provide some examples.

If I for example have a user control that exposes an event, and the page that hosts the user control registers to the event in page_OnLoad on every request, will that lead to the same memory leak issue you have been experiencing?
Do I need to manually un-register to the event during page_PreRender or will the asp.net runtime do that for me automatically?

Regards, Egil.

Egil |

7/9/2008 6:10:27 AM #

Memory leaks are never fun, but at least it was easy to fix once you found it. Thanks.

Chris Pietschmann |

7/9/2008 6:46:09 AM #

Nice job tracking down a pretty obscure issue. For the past few months I've had to throttle the app pool my blog is in because the memory would eventually grow out of hand, so I'll certainly be implementing this ASAP. Here's to less application restarts!

Troy Goode |

7/9/2008 9:14:42 AM #

Cool. Glad you found it and thanks for the persistence. Of course, I'll hold off on my migration to 1.4 until all the tweaks are in. I can wait 2 more weeks.

Scott Marlowe |

7/9/2008 9:59:18 AM #

Can you tell us what the issues are that you'll be working on in the service release?

Chad Thiele |

7/9/2008 1:40:26 PM #

After applying the fix I've got compilation error. Here is the error
  
'BlogEngine.Core.Utils' does not contain a definition for 'StripHtml'. This error is in Line 139 in RelatedPosts.cs

Ali Özgür |

7/9/2008 3:15:13 PM #

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blog.cwa.me.uk |

7/9/2008 10:06:07 PM #

i got the same compilation error:


Compilation Error
Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.

Compiler Error Message: CS0117: 'BlogEngine.Core.Utils' does not contain a definition for 'StripHtml'

Source Error:



Line 137:            if (String.IsNullOrEmpty(description))
Line 138:            {
Line 139:              string content = Utils.StripHtml(post.Content);
Line 140:              description = content.Length > DescriptionMaxLength ? content.Substring(0, DescriptionMaxLength) + "..." : content;
Line 141:            }


Source File: d:\hosting\App_Code\Controls\RelatedPosts.cs    Line: 139

Steve |

7/10/2008 9:05:47 PM #

It would be interesting to know *how* you found the source of the leak. Once found, the fix is usually pretty mundane. ;)

Mark Brackett |

7/11/2008 2:28:45 PM #

This really reminds me of the Princeton DARPA team's case. The mem leaks are caused from registered event handlers. www.codeproject.com/.../...edUsedANTSProfiler.aspx

m3rlinez |

7/19/2008 6:08:50 PM #

Yesterday evening I found myself in the right mood for tracking down this leak and it only took me 6 hours to find it. The fix took about 8 seconds, but what jolly 8 seconds that was.

Standard! This is how it always goes. It's always harder to spot an error than to fix it.

Mike Borozdin |

7/21/2008 6:25:24 PM #

Is there a XML Sitemap Generator for the BlogEngine.NET (as a part of it or as an Extension) please?

Thanks,
Ivan

Ivan | SEO Konzultant |

7/21/2008 9:03:11 PM #

Thanks Mads!

Ivan

Ivan | SEO Konzultant |

7/21/2008 9:11:10 PM #

Trackback from SEO Konzultant

BlogEngine.NET ima XML Sitemap!

SEO Konzultant |

8/12/2008 2:13:27 PM #

Hi Madds,
After applying RelatedPosts fix I got some strange styling behaviour for my post comments. I guess RelatedPosts.cs CreateList method strips the description of the related post so that it produces non well formed html string.

You can check blog.pragmasql.com/.../...Burrow-contribution.aspx
for that strange behaviour.

When I disable related posts feature everything is fine.

Ali Özgür |

8/21/2008 4:46:28 AM #

Glad you found it, it was crashing my host every 2 hours!!

Mr. Phucked |