Friday, November 18, 2011

How to remove stale DDC from XenDesktop 5 Farm

Stale DDC inside XenDesk 5 Farm may get created because of various reason and this does not get removed unless database is cleaned.

1. If you run Get-brokercontroller from PS console of Desktop Studio then you see the stale entry. Below two stale entry for SID

S-1-5-21-1757981266-413027322-725345543-64627 and  other one ending with 64712image 

2. Same thing will be shown via Desktop Studio

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3. Following script needs to be run in same order from desktop studio PS console with XD database name

Get-ConfigDBSchema -DatabaseName <XD database name> -ScriptType Evict -SID $sid > EvictDDC.sql  (Here we are creating EvictDDC.sql)
Get-AcctDBSchema -DatabaseName <XD database name> -ScriptType Evict -SID $sid >> EvictDDC.sql(Here we are appending to  EvictDDC.sql)
Get-HypDBSchema -DatabaseName <XD database name> -ScriptType Evict -SID $sid >> EvictDDC.sql
Get-ProvDBSchema -DatabaseName <XD database name> -ScriptType Evict -SID $sid >> EvictDDC.sql
Get-PvsVmDBSchema -DatabaseName <XD database name> -ScriptType Evict -SID $sid >> EvictDDC.sql
Get-BrokerDBSchema -DatabaseName <XD database name> -ScriptType Evict -SID $sid >> EvictDDC.sql

4. This is how Script needs to be run in following order . First SID variable needs to be set and then rest of the commands need to be run. Here we are creating EvictDDC.sql file which is nothing but a stored procedure

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5.  This file can be found under following

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6. Now when we open this file with notepad  following entry can be found.

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7.   Open SQL server management studio and select the database and then open new script. Select the content from EvictDDC.sql  and paste as shown. Execute as shown below

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8.   Last command Get-BrokerDBSchema -DatabaseName <XD database name> -ScriptType Evict -SID $sid >> EvictDDC.sql  need to run as follows.

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9.  Sometime Get-BrokerDBSchema -DatabaseName <XD database name> -ScriptType Evict -SID $sid >> EvictDDC.sql will fail with following message. Create new store procedure using working XD SID and then replace host name and SID with non working SID.

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10.  Once all the above store procedure ran it will remove the stale entry from DDC

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Even Desktop Studio will update the entry

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