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Users are receiving HTTP 413 errors (entity too large)



Several TRIRIGA users receive 413 errors (from IIS) under Internet Explorer 10.


The problem may be caused by a very large page that is exceeding the size of the browser's cache.

Diagnosing The Problem

No recent changes have been allowed in the environment due to lock down period.

In an effort to fix this issue, the uploadReadAheadSize (IIS) was increased from the default of 48K up to 128K, and the responseBufferLimit (webconfig) from the default of 4M to 16M. Also attempted clearing browser cache. None of these changes resolved the problem.

Finally, a very large page that was exceeding the size of the browser's cache limitation was identified.

Resolving The Problem

Increase the size of the browser cache.

For Internet Explorer 10, the path is Settings, Internet Options, then select Settings in the "Browsing History" section, and finally, select the "Caches and Databases" tab.

The default value may be 10MB. After increasing it to 25MB there were no further problems.

[{"Product":{"code":"SSHEB3","label":"IBM TRIRIGA Application Platform"},"Business Unit":{"code":"BU055","label":"Cognitive Applications"},"Component":"IBM TRIRIGA Application Platform Runtime Engine","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"Version Independent","Edition":"","Line of Business":{"code":"LOB02","label":"AI Applications"}},{"Product":{"code":"SSQNGE","label":"IBM TRIRIGA"},"Business Unit":{"code":"BU055","label":"Cognitive Applications"},"Component":" ","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"LOB02","label":"AI Applications"}},{"Product":{"code":"SSHEB3","label":"IBM TRIRIGA Application Platform"},"Business Unit":{"code":"BU055","label":"Cognitive Applications"},"Component":" ","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"LOB02","label":"AI Applications"}}]

Document Information

Modified date:
15 August 2018