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Large report CSV output around 15gb does not download in Cognos Analytics 11.1.x

Troubleshooting


Problem

Intermittent problem downloading  large report csv output in Cognos analytics.The problem is reproducible irrespective of browser type. 
The reports runs fine and generates an output but when downloading the csv output from the Desktop browser it never responds.
The same problem is not seen when downloading  smaller file size.

Symptom

This problem is Intermittent in nature. The problem is persistent with large  download files around 13 gigabyte and above

Document Location

Worldwide

[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSTSF6","label":"IBM Cognos Analytics"},"ARM Category":[{"code":"a8m50000000Cl6YAAS","label":"Installation and Configuration-\u003EContent Manager"}],"ARM Case Number":"TS003622808","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"All Version(s)","Line of Business":{"code":"LOB76","label":"Data Platform"}},{"Product":{"code":"SS6G84","label":"IBM Cognos Analytics on Cloud"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":" ","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"LOB76","label":"Data Platform"}},{"Product":{"code":"SSLKT6","label":"IBM Maximo Asset Management"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":" ","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"LOB77","label":"Automation Platform"}}]

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Document Information

Modified date:
14 January 2026

UID

ibm16212192