Exchange Journal archiving performance is slow due to thread contention on DLCache when using External Filter.

Article:TECH191331  |  Created: 2012-06-20  |  Updated: 2013-09-26  |  Article URL http://www.symantec.com/docs/TECH191331
Article Type
Technical Solution

Product(s)

Environment

Issue



When using several Custom Filter rules based upon large distribution lists, the Exchange Journaling task is slow to process items.


Error



None


Cause



This issue is due to an inefficiency in Exchange journaling when custom filtering is implemented.


Solution



This issue has been addressed in the following release:


Enterprise Vault 10.0.3 - Release Details
http://www.symantec.com/docs/TECH193300 


To resolve this issue in release 9.0.3 apply the attached hotfix.

Note: This hotfix can only be applied to Enterprise Vault 9.0 SP3.  While this issue has been resolved in Enterprise Vault 10.0.3 the issue still exists on all versions greater than 9.0.2.

Description of the Solution:

Improvements have been made around the handling of distribution lists.

Which files does this hotfix replace?

File Name New File Version
AgentsCommon.dll 9.0.3.1255
CustomRules.dll 9.0.3.1255
ExchangeItemsU.dll 9.0.3.1255

How to install this hotfix:

  1. Stop all Enterprise Vault services.
  2. Once all services have stopped, take a backup copy of each file listed under the "Which files does this hotfix replace?" section. These files are located in the Enterprise Vault installation folder (which by default is "C:\Program Files\Enterprise Vault", or "C:\Program Files (x86)\Enterprise Vault" on a 64-bit machine).
  3. Copy the updated files, packaged in this hotfix, to the Enterprise Vault installation folder, replacing the originals.
    Start all Enterprise Vault services.

How to uninstall this hotfix:

  1. Stop all Enterprise Vault services.
  2. Once all services have stopped, take the back up copies of the files listed under the "Which files does this hotfix replace?" section and replace the hotfix files, located in the Enterprise Vault installation folder.
  3. Start all Enterprise Vault services.

Attachments

EV_9.0.3_Hotfix_Etrack_2767750-Improve Journal Custom Filter performance.zip
EV_9.0.3_Hotfix_Etrack_2767750-Improve Journal Custom Filter performance.zip (680 kBytes)

Supplemental Materials

SourceETrack
Value2767750
Description

Journaling slow due to thread contention on DLCache when using External Filter. Drops archive rate to ~3k per hour.


SourceETrack
Value2807834
Description

 Journaling slow due to thread contention on DLCache when using External Filter. Drops archive rate to ~3k per hour.



Article URL http://www.symantec.com/docs/TECH191331


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