Runtime settings

In the Runtime settings you can configure:

• Size limits for requests and query strings. Neither of these settings needs to be configured. If nothing is configured, requests and query strings can be any size.

• The runtime mode of Umbraco.

• The lifetime of temporary file uploads. This is primarily used when uploading images and other media in the backoffice.

An example of a configuration could look something like:

"Umbraco": {
  "CMS": {
    "Runtime": {
      "MaxQueryStringLength": 90,
      "MaxRequestLength": 2048,
      "Mode": "BackofficeDevelopment",
      "TemporaryFileLifeTime": "1.00:00:00"
    }
  }
}

• MaxRequestLength is specified in kilobytes. Setting this limits the request size, including the size of uploaded files.

• MaxQueryStringLength is specified in number of characters. Setting this limits the maximum query string length.

• Mode can have three values: BackofficeDevelopment (default), Development, and Production. For more information, see the Runtime modes article.

• TemporaryFileLifeTime is specified as a timespan. The default value is one day - 1.00:00:00.