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Differences between running a 32 and 64 bit Report Server with IBM Cognos 10.1 RP1 (10.1.1) and above

Technote (FAQ)


Besides the difference in size of addressable memory space, what are the other considerations of running a 32-bit vs 64-bit report server?

Why is a "QFS-ERR-0141: This report service is configured as 64-bit and only supports packages published with the dynamic query mode" error message being returned when trying to run a report with a 64-bit report service?


- A 64-bit Application Tier install of 10.1.1 (RP1) will by default be running a 32-bit report server.
- A 64-bit install of 10.1.1 (RP1) running a 32-bit report server will launch a 64-bit java process for Dynamic Query Mode (DQM) enabled packages and will also launch a 32-bit BIBUS processes for CQM packages.

- A 64-bit install of 10.1.1 (RP1) running a 64-bit report server can only use DQM (Dynamic Query Mode) connections to the reporting database. It cannot use Compatible mode (Type-2 connection, using 32-bit cli drivers).

- If an environment has a 64-bit report server and Compatible Query Mode (CQM) packages, you must configure package routing to ensure that none of the requests for CQM packages go to the 64-bit report server. In RP1, a 64-bit report server will accept a request it receives for a CQM package even though it cannot launch a process that can handle it. QFS-ERR-0141 errors will occur unless package routing has been configured to route CQM requests, like those for reporting off PowerCubes, to 32-bit report servers only.

For further information, see the Install and Configuration guide linked below.

Related information

Install and Config Guide

Document information

More support for: Cognos Business Intelligence
Install and Config

Software version: 10.1.1, 10.2, 10.2.1, 10.2.2

Operating system(s): AIX, HP-UX, Linux, Solaris, Windows

Software edition: All Editions

Reference #: 1516706

Modified date: 05 June 2015

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