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I have a umbraco 4.5 with .net 3.5 and recently upgraded the server to .net 4, and the site worked great until now. The site is very slow to load and then finally stops, displaying the 503 error and has stopped the application pool. If I restart the application it starts again but the outcome is the same. If I check the event log in IIS 7 the only entry is "Message: Unable to find assembly 'Lucene.Net, Version=18.104.22.168, Culture=neutral, PublicKeyToken=null'. I've checked the installation and the dll is present along with the correct version, and the site ran fine until this error came along. Has anyone experienced this behavior before and maybe fixed it in some way?
Patrick can you double check your permissions.
Permissions seems to be set. Network service has r/w to all the folders and files Umbraco requires.
What happens if you set the "modfiy" permission as well?
Jep modify and execute and everything but "special permissions".
Just saw a link to this issue from http://twitter.com/greystate ...
It reminds me of an error in an old .net application I used to develop and maintain. Application pools - back then - would fail when having applications/libraries compiled with different versions of the .net framework. This sounds to me to be the same issue - but since I have not worked professionally with .net solutions in a couple of years now, I am not sure. But it might be something to look into.
Hey guys, thanks for the solutions. Due to time constraint I ended up doing a reinstall with .net 4 version of umbraco and copied the files I needed, and now it's back up and running. Sure was a weird issue, but probably had to do with compiled version, that broke when the server got .net 4 and still used the .net 2 pool setting. I've used the same umbraco installation for a lot of other sites with the same configuration and have never had any issues like this before.
Anyway, thanks for the many suggestions :).
Same issue here.. works perfectly on my local dev box, but on the server it keeps crashing the app pool.
Has anybody resolved this issue? It's happening on a 4.7.0 umbraco site running on windows 2008 iis 7 (integrated and classic mode).
very frustrating :|
Did anyone ever come up with a resolution for this? I am have the exact same error on 1 of about 10 umbraco 4.7 sites that I have. Its very slow to load, often failing because the app pool stops. And in my application event log I see the same 2 errors over and over:
I ended up resolving my own problem.
I removed App_Data/temp/ExamineIndexes and it rebuilt it and my problem was resolved.
Just went through a migration from one location to another. I removed the contents of App_Data/TEMP/ExamineIndexes and after a minute or so of watching the browser spinner (while the Lucene cache was being rebuilt) the site came up.
Had the same problem and ended up resolving the issue by removing just one of my five indexes from app_Data/ExamineIndexes (or rather renaming it to xxxx.old). (after having read among others Scooters reply above)
This enabled the IIS to restart the site without errors. And the index is just rebuilding.
Maybe the Lucene/Examine code needs to be able to fail more gracefully instead of taking the entire site with it...?? That would be nice :-(
Thanks scooter, was out of ideas found your post on deleting App_Data/temp/ExamineIndexes and it fixed it.
I have to laugh at this. Three years later. Same web site. Same error. Google search brought me here. And my own fix worked for me again. I probably documented it somewhere the first time but its been so long ago I couldn't find it.
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