WMI remote connection slow - help.

[ttan]

Hi,

I have 7 computers and 5 controllers(no OS) connected to Domain controller.
when I used WMI to query for registry, it take a long time (about 60
minutes) to return the result. if it a controller then there is no WMI and
return a NULL ManagementClass . Does anyone know there is another way to make
it run faster?

protected static ManagementClass ConnectToConfig Prov(string host, string
managementClass )
{
ManagementClass Config;
try
{
ConnectionOptio ns options = new ConnectionOptio ns();
options.Imperso nation = ImpersonationLe vel.Impersonate ;
string sPath = "\\\\" + host + "\\root\\cimv2" ;
ManagementScope scope = new ManagementScope (sPath, options);
scope.Connect() ;
Config = new ManagementClass (
scope,
new ManagementPath( managementClass ),
null);
}
catch
{
sErr = "WMI connection failed";
return Config=null;
//throw (new Exception(sErr) );
}

return Config;
}

public string RemoteRegistryR eadValue(string sServer)
{
ManagementClass ManageConfig;
string sValue = null;
string sErrMsg = null;
string mgmtPath = "Win32_Operatin gSystem";

ManageConfig= ConnectToConfig Prov(sServer, mgmtPath);
if (ManageConfig== null)
{
sErrMsg = "WMI connection to \"Win32_Operati ngSystem\" of
computer " + sServer + " failed";
//throw (new Exception(sErrM sg));
}
else
{
sValue = "There is no WMI, must be controller";
}

return sValue;

}


thanks

[Willy Denoyette [MVP]]

Re: WMI remote connection slow - help.


"ttan" <ttan@discussio ns.microsoft.co mwrote in message
news:985EACDF-ADCE-4F0D-8552-BB03FBED799E@mi crosoft.com...
| Hi,
|
| I have 7 computers and 5 controllers(no OS) connected to Domain
controller.
| when I used WMI to query for registry, it take a long time (about 60
| minutes) to return the result. if it a controller then there is no WMI and
| return a NULL ManagementClass . Does anyone know there is another way to
make
| it run faster?
|
| protected static ManagementClass ConnectToConfig Prov(string host, string
| managementClass )
| {
| ManagementClass Config;
| try
| {
| ConnectionOptio ns options = new ConnectionOptio ns();
| options.Imperso nation = ImpersonationLe vel.Impersonate ;
| string sPath = "\\\\" + host + "\\root\\cimv2" ;
| ManagementScope scope = new ManagementScope (sPath,
options);
| scope.Connect() ;
| Config = new ManagementClass (
| scope,
| new ManagementPath( managementClass ),
| null);
| }
| catch
| {
| sErr = "WMI connection failed";
| return Config=null;
| //throw (new Exception(sErr) );
| }
|
| return Config;
| }
|
| public string RemoteRegistryR eadValue(string sServer)
| {
| ManagementClass ManageConfig;
| string sValue = null;
| string sErrMsg = null;
| string mgmtPath = "Win32_Operatin gSystem";
|
| ManageConfig= ConnectToConfig Prov(sServer, mgmtPath);
| if (ManageConfig== null)
| {
| sErrMsg = "WMI connection to \"Win32_Operati ngSystem\" of
| computer " + sServer + " failed";
| //throw (new Exception(sErrM sg));
| }
| else
| {
| sValue = "There is no WMI, must be controller";
| }
|
| return sValue;
|
| }
|
|
| thanks

What are "controller s (no OS)" and are you sure about the 60 minutes? The
connection time-out is much lower. What happens if you try using Wbemtest or
WMIStudio (from the WMI tools kit).


Willy.

[ttan]

Re: WMI remote connection slow - help.


it's a third party controller(alar m, signal) and it does have an IPaddress.
From the domain controller I have to filter out the third party controller
and set the service start/stop on a real computer.
My question is: if there is no WMI on the third party controller, where is
the code failed?
failed here - ManagementScope scope = new ManagementScope (sPath, options);
OR
- scope.connect() ;
does it return anything?


"Willy Denoyette [MVP]" wrote:

>
"ttan" <ttan@discussio ns.microsoft.co mwrote in message
news:985EACDF-ADCE-4F0D-8552-BB03FBED799E@mi crosoft.com...
| Hi,
|
| I have 7 computers and 5 controllers(no OS) connected to Domain
controller.
| when I used WMI to query for registry, it take a long time (about 60
| minutes) to return the result. if it a controller then there is no WMI and
| return a NULL ManagementClass . Does anyone know there is another way to
make
| it run faster?
|
| protected static ManagementClass ConnectToConfig Prov(string host, string
| managementClass )
| {
| ManagementClass Config;
| try
| {
| ConnectionOptio ns options = new ConnectionOptio ns();
| options.Imperso nation = ImpersonationLe vel.Impersonate ;
| string sPath = "\\\\" + host + "\\root\\cimv2" ;
| ManagementScope scope = new ManagementScope (sPath,
options);
| scope.Connect() ;
| Config = new ManagementClass (
| scope,
| new ManagementPath( managementClass ),
| null);
| }
| catch
| {
| sErr = "WMI connection failed";
| return Config=null;
| //throw (new Exception(sErr) );
| }
|
| return Config;
| }
|
| public string RemoteRegistryR eadValue(string sServer)
| {
| ManagementClass ManageConfig;
| string sValue = null;
| string sErrMsg = null;
| string mgmtPath = "Win32_Operatin gSystem";
|
| ManageConfig= ConnectToConfig Prov(sServer, mgmtPath);
| if (ManageConfig== null)
| {
| sErrMsg = "WMI connection to \"Win32_Operati ngSystem\" of
| computer " + sServer + " failed";
| //throw (new Exception(sErrM sg));
| }
| else
| {
| sValue = "There is no WMI, must be controller";
| }
|
| return sValue;
|
| }
|
|
| thanks
>
What are "controller s (no OS)" and are you sure about the 60 minutes? The
connection time-out is much lower. What happens if you try using Wbemtest or
WMIStudio (from the WMI tools kit).
>
>
Willy.
>
>
>