Changing Connection Pool Registry Settings
Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2
To improve system performance, you can use registry key entries to set the properties of the Active Directory Lightweight Directory Access Protocol (LDAP) connection pool that is used by RMS to query Active Directory.
On computers running the 32-bit version of Windows Server 2003, the following registry key is the full subkey path for the connection pool registry entries:
HKEY_LOCAL_MACHINE\Software\Microsoft\DRMS\1.0
On computers running the 64-bit version of Windows Server 2003, the following registry key is the full subkey path for the connection pool registry entries:
HKEY_LOCAL_MACHINE\SoftwareWOW6432Node\Microsoft\DRMS\1.0
The following table lists the entries that you can add to override the default Active Directory connection pool settings. The values that are displayed are the default values. For more information about how RMS constructs a query list and uses these settings, see “Optimizing Active Directory Connection Pool Settings” earlier in this subject.
| Name | Type | Default Value | Description | Notes |
|---|---|---|---|---|
GC |
String |
name-1, ..., name-n |
Comma-separated list of global catalogs (using DNS names). This key restricts RMS to using only the specified global catalogs. |
If you do not want RMS to create a query list, use this setting to specify the global catalogs to use. |
MinGC |
DWORD |
1 |
Minimum number of global catalogs that must be available before RMS can start. |
|
MaxGC |
DWORD |
5 |
Maximum number of global catalogs that the Topology Discovery algorithm will add to the query list. |
|
ThreshHoldAlive |
DWORD |
1 |
Minimum number of connections that should be responsive before DiscoveryServices will begin searching for global catalogs to add to the query list so that RMS can accept requests. |
|
RetryDown |
DWORD |
5 |
Number of times to retry a down connection before declaring it unresponsive. |
|
TimeRetryDown |
DWORD |
300 |
Number of seconds to wait before retrying a down connection. |
You should not need to change this default setting, except in unusual circumstances. |
TimeRetrySlow |
DWORD |
30 |
Number of seconds to wait before retrying a slow connection. |
You should not need to change this default setting, except in unusual circumstances. |
WtRoundRobin |
DWORD |
1 |
Weight of round robin during load balancing. |
The relative importance of round robin in load balancing. A value of 1 is the lowest value. |
WtThreadCount |
DWORD |
100 |
Weight of thread count per connection during load balancing. |
The relative importance of a low thread count. |
WtSlow |
DWORD |
1,000 |
Weight of slow connection during load balancing. |
The relative importance of the connection not being slow. |
TimeOutForGC |
DWORD |
5 |
Number of seconds to wait before timing out a request to add a global catalog to the query list. |
|
LdapTimeOut |
DWORD |
5 |
Number of seconds to wait before timing out on LDAP APIs |
|
TopDownExpansionLDAPTimeOut |
DWORD |
40 |
Number of seconds to wait before timing out on top-down LDAP expansion queries. |
Warning
Incorrectly editing the registry may severely damage your system. Before making changes to the registry, you should back up any valued data on the computer.