When Enterprise Vault (EV) Virtual Vault (VV) is enabled, Outlook 2003 may become unresponsive and the process may hang during closure.

Article:TECH161549  |  Created: 2011-06-03  |  Updated: 2013-06-10  |  Article URL http://www.symantec.com/docs/TECH161549
Article Type
Technical Solution


Issue



When Virtual Vault is enabled for a user, additional worker threads are opened by the EV Client Add-on in order to perform necessary structure (Metadata Cache) and content (Content Cache) updates.  When there is a large number of updates requested, it is possible that the worker threads will not close immediately when a stop of Outlook is performed.  This was initially in order to ensure no data loss would be possible when forcing Virtual Vault threads to close.


Error



Since Virtual Vault utilizes PST functionality, if the Outlook.exe process is stopped manually, this can cause stability issues with the local OST or Virtual Vault databases.


Cause



It has been identified that if the Virtual Vault threads are too busy processing updates, this can interfere with stop requests when closing Outlook.  This in turn can cause Outlook to hang indefinitely due to the VV threads not being stopped. This has only been observed in the following scenario:

a. Outlook 2003 installed
b. Large local Vault Cache (15+ GB)
c. Workstation under heavy utilization.
 


Solution



This issue has been addressed as part of the following release:


Hotfix for Symantec Enterprise Vault (EV) for Microsoft Exchange 9.0.2, Build 1169 - Cumulative hotfix for Enterprise Vault Outlook Add-in
www.symantec.com/docs/TECH162170

Enterprise Vault 9.0.3 - Release Details
http://www.symantec.com/docs/TECH147782

Enterprise Vault 10.0.1 - Release Details
http://www.symantec.com/docs/TECH147787 


Supplemental Materials

SourceETrack
Value2355902
Description

Outlook 2003 hangs indefinitely on closure due to open VC threads not being closed when multiple add-in are present.



Article URL http://www.symantec.com/docs/TECH161549


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