11

After a deploy, my Sitecore Azure instance is heavily slowed down and I get the following error on and on,

2017-06-29T08:22:15  PID[42864] Error       54964 08:22:15 ERROR Error in FileWatcher. Internal buffer overflow.
Exception: System.IO.InternalBufferOverflowException
Message: Too many changes at once in directory:D:\home\site\wwwroot\.

I tried the dark magic of "change sitecore license file location" described here but it had no effect

What can I do to remove this error / speed up the instance so that contributors can do their work ?

7

We currently have the same issue and have been advised to set the following config (in Sitecore.config) to a higher value:

<setting name="Media.FileSystemWatcher.BufferSize" value="16384" />

We are currently trial & erroring this value right now, but others have reported a positive outcome.

| improve this answer | |
6

This is a known issue and acknowledged by Sitecore. Whilst it is being further investigated, Sitecore recommend in their Knowledge Base article one of the following solutions:

  • Disable Dynamic Cache by creating an App Setting for the impacted App Service:

    • App Setting Name: WEBSITE_DYNAMIC_CACHE
    • App Setting Value: 0 WEBSITE_DYNAMIC_CACHE
  • Updating Sitecore Configuration and disable \wwwroot\App_config\Include\Sitecore.Diagnostics.config file as mentioned in the answer from @Tom Dudfield

| improve this answer | |
1

Disabling the Sitecore config Sitecore.Diagnostics.config seems to have resolved the issue for us, this stops data being written to the diagnostics folder.

| improve this answer | |
1

You might also consider disabling/deleting the FileWatchers completely. In general, we do this because we won't make any changes to the filesystem outside of a deploy (we don't change views, configs etc. and we only upload medias through Sitecore, not by using the file system). Hereby we save the additional work-load and threads caused by the FileWatchers, but keep the watchers locally so you can make changes without recycling the application...

| improve this answer | |

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.