11.1.2 Planning forms are very slow and may hang Internet Explorer (IE)

11.1.2 Planning forms are very slow and may hang Internet Explorer (IE). [ID 1269428.1]
		Modified 11-MAY-2011     Type PROBLEM     Status PUBLISHED

In this Document
  Symptoms
  Cause
  Solution
  References

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Applies to:

Hyperion Planning - Version: 11.1.2.0.00 and later   [Release: 11.1 and later ]
Information in this document applies to any platform.
Internet Explorer 7
Internet Explorer 8

Symptoms

A planning form which remains open and in use (collapsing and expanding columns, saving the form and other actions) will use increasingly more memory on Internet Explorer slowing it down until eventually it crashes the browser and possibly hangs the operating system.

The problem can be identified by following the memory usage of Internet Explorer in the task manager while working with the form.  The browser memory will continually increase every time certain actions are performed in the form.

The problem will occur for all forms, however large forms are more likely to crash the browser than smaller forms due to their overall higher memory requirements.

Cause

When the form is loaded, after each action in the form additional memory is used for that action.  This memory should be released again but the browser does not reclaim the unused memory until the form is completely unloaded.

This has been identified in unpublished bug 10258990 - IE MEMORY NOT RELEASED AFTER SAVING FORM OR EXPANDING/COLLAPSING ROWS/COLUMNS.

Solution

As of unpublished bug 10258990, the problem is encountered with Internet Explorer 7 as well as with Internet Explorer 8. However, the issue is not observed when using Firefox 3.5.x.

The supported Firefox version is available via the link below.
http://www.mozilla.com/en-US/firefox/all-older.html

Development is aware of this issue and is targeting to incorporate a code fix with an upcoming Patch Set Update (PSU).

References