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KB Article #102164

Changing default decomposition time before error

 Changing default decomposition time before error
This article was previously published as ID#30514


Summary:
MMS uses the Verity engine to scan attachments types. Major releases often use a new version of these dll libraries, to allow new file types to be successfully opened for scanning. However, sometimes file types will cause problems before a new verity library is available. In this case, an administrator can make the following change to a MMS 5.x and 6.x server registry.

This change alters the amount of time the MMS Policy Engine service will attempt to open a file before returning a failure, and moving on to the next message. Shortening this time interval can thus improve performance if a series of problem attachments are slowing down mail flow because they take some time to fail scanning and be passed on.

However, large files also take longer to scan. Tuning this value downward can cause some large files not to be scanned for content, with the size being dependant on how small the interval is set.

Resolution:
Open regedit

navigate down through:
HKEY_LOCAL_MACHINE\Software\Tumbleweed\MMS

In the 'MMS' folder add a folder called 'Policies'
In the 'Policies' folder, add a folder called 'Plugins'
In the 'Plugins' folder, add a folder called 'Content Manager'
In the 'Content Manager' folder, add a folder called 'SLC'

The full path should now look like:
HKEY_LOCAL_MACHINE\Software\Tumbleweed\MMS\Policies\Plugins\Content Manager\SLC
In the 'SLC' folder, please add two registry keys:
DWORD value: 'Base Time', with a value of 15
DWORD value: 'Multiplier', with a value of 2

Then, reboot the computer.


Original Author: IHESS
Original Submitter: IHESS
Keywords: decomposition error verity MMS ID#30514