URGENT: Startpage disappears - white and blank

Quote from: cyclissmo at Feb 08, 2011, 06:02 PM

I am able to reproduce the blank page on a regular basis now, using multiple concurrent requests to the index page. Here’s the conditions:

@Mike: Thanks for the script!

OK, I am now able to crush the start page of a MODx Revo 2.0.7pl with the MikeScript.

Good News: I found out that already one of these things helps and the script does not crack the start page any more:

• 1. Create a error page (own document OR just a weblink)
• 2. Create a robots.txt
• 3. Modify the .htaccess to redirect to either "www.domain.com" OR "domain.com"

Bad News: The good news is not good. I had a case, where 1. AND/OR 2. was done, but the page still blanked.

Good News: I run an installation where I handle different subdomains with just one MODx installationand NONE ever blanked! So I think that 3. is a very important step! Until now I did not have a blank screen on these websites. But I don’t want to speak about that too loud ...

Quote from: mindeffects at Feb 13, 2011, 07:11 AM

OK, I am now able to crush the start page of a MODx Revo 2.0.7pl with the MikeScript.

Haha the MikeScript able to defeat a Revo homepage in one click.

Well not any more. Your suggestion of the .htaccess setup to redirect all traffic from [tt]domain.com[/tt] to [tt]www.domain.com[/tt] has been successful for me too. Subdomains are rock solid.

Hopefully there are no other conditions can can trigger the "Oliver Screen"

FYI

For everyone tracking this issue, I believe I have solved the mystery over the weekend, finally. See the latest update at http://bugs.modx.com/issues/3111 or the commits at https://github.com/modxcms/revolution/commits/bugfix-3111 for more info, but basically the Resource cache files were being over-written unnecessarily because of a bug in the cache process. This was leading to race conditions with so many processes trying to re-write the cache file, even though they loaded it from the cache and it did not need to be written again. I’ve also included an improvement to the writeFile() function already being used in 2.1 development that should prevent bad cache file writes even if simultaneous requests try to write it at the same time.

If you know how to build from git, please test the bugfix-3111 branch and let us know if it resolves the problem. Please note, the changes can simply be applied to existing 2.0.7-pl deployments to test—setup is not required other than to mark your installation as upgraded to 2.0.8, which these fixes will be released as shortly.

Does anyone know if this issue is now resolved with the new 2.1-pl?

I believe it does (let us know if not). In the meantime, you should be able to clear things up by deleting all the files in the core/cache directory.

Hi,

I had the same blank page issue with a 2.0 installation so I tried reinstalling a fresh modx installation from the latest version.
It does not solve my problem
Sometimes the home page just gets blank and it cannot be solved until clearing the cache.

My hosting is OVH on a shared account, I have a symlink pointing to my home page.

I have a robots.txt file.

I tried today to edit the htaccess file to change the redirection from domain.com to www.domain.com so I don't know if it will fix the issue.

Thanks,

Tom [ed. note: th0m62 last edited this post 14 years, 11 months ago.]