Cluster API

[Peter Ericsson]

Does anyone know if Microsoft plans to implement an C#
(.net) API for MS Cluster like the one in C++?

Or has someone else written a C# wrapper for the C++ API?

[Ahmed Qurashi]

Now that would be pretty cool...

I haven't seen the API but it must be very low level to support data sync
and load balancing, etc. A managed wrapper may not be possible or
desirable...

But I wonder if one could design a C# clustering api using msmq, sockets,
and wmi? What would go into such a project?

ok,
aq

"Peter Ericsson" <pe************ **@ericsson.com > wrote in message
news:1d******** *************** *****@phx.gbl.. .

Does anyone know if Microsoft plans to implement an C#
(.net) API for MS Cluster like the one in C++?

Or has someone else written a C# wrapper for the C++ API?

[Willy Denoyette [MVP]]

There is a big difference between a wrapper and implementing an API.
The MS cluster API's (cluster resources) are implemented using C/C++ , the
reason is high reliability, efficiency and a low memory footprint, something
that managed code doesn't offer, as it was not designed to be used as a
system level platform.
The cluster management API's are available as native C/C++ API's and a set
of COM interfaces, so if you only need to manage MS cluster server, you
could wrap the COM api.

Willy.

"Peter Ericsson" <pe************ **@ericsson.com > wrote in message
news:1d******** *************** *****@phx.gbl.. .

Does anyone know if Microsoft plans to implement an C#
(.net) API for MS Cluster like the one in C++?

Or has someone else written a C# wrapper for the C++ API?

[Willy Denoyette [MVP]]

OP was talking about MS cluster server API's , not sure what this has to do
with msmq sockets and WMI.

Willy.

"Ahmed Qurashi" <ah**********@g mail.com> wrote in message
news:uy******** ******@TK2MSFTN GP12.phx.gbl...

Now that would be pretty cool...

I haven't seen the API but it must be very low level to support data sync
and load balancing, etc. A managed wrapper may not be possible or
desirable...

But I wonder if one could design a C# clustering api using msmq, sockets,
and wmi? What would go into such a project?

ok,
aq

"Peter Ericsson" <pe************ **@ericsson.com > wrote in message
news:1d******** *************** *****@phx.gbl.. .

Does anyone know if Microsoft plans to implement an C#
(.net) API for MS Cluster like the one in C++?

Or has someone else written a C# wrapper for the C++ API?

[Ahmed Qurashi]

Yup, a bit offtopic there...just wondering aloud what a c# implementation of
an open source clustering software architecture would look like..

ok,
aq

"Willy Denoyette [MVP]" <wi************ *@pandora.be> wrote in message
news:O%******** **********@TK2M SFTNGP09.phx.gb l...

OP was talking about MS cluster server API's , not sure what this has to do with msmq sockets and WMI.

Willy.

[Willy Denoyette [MVP]]

Based on the same "shared clustering" technology used by Windows cluster
server? IMO it would be written in C and C++ and some assembly.
Don't forget that WCS consists of a low level device driver and a filter
driver, a service and a number of resource managers that expose the cluster
API's to consumers.
The driver can't be written in managed code point. The service could be
written in C#, the resource managers also, but the cluster aware resources
(think SQL server, Exchange, the file server service ...) expect a C
function export as API style, that means your resource managers must be
written in C (or C++) too. What's left is your service, but I don't expect
you would implement this one in managed code if all others are unmanaged.

Willy.

"Ahmed Qurashi" <ah**********@g mail.com> wrote in message
news:%2******** ********@TK2MSF TNGP10.phx.gbl. ..

Yup, a bit offtopic there...just wondering aloud what a c# implementation
of
an open source clustering software architecture would look like..

ok,
aq

"Willy Denoyette [MVP]" <wi************ *@pandora.be> wrote in message
news:O%******** **********@TK2M SFTNGP09.phx.gb l...

OP was talking about MS cluster server API's , not sure what this has to

do

with msmq sockets and WMI.

Willy.

[Peter Ericsson]

My only interest is to manage the cluster. Start and stop
resorces, get notifications when they fail, find out what
kind of resources are available in the cluster and so on.
I mean these kind of methods are available for windows
services but not for clustered resources.

I'm not an COM expert so I'd rather stick to C#.

/Peter

-----Original Message-----
There is a big difference between a wrapper and implementing an API.The MS cluster API's (cluster resources) are implemented using C/C++ , thereason is high reliability, efficiency and a low memory footprint, somethingthat managed code doesn't offer, as it was not designed to be used as asystem level platform.
The cluster management API's are available as native C/C++ API's and a setof COM interfaces, so if you only need to manage MS cluster server, youcould wrap the COM api.

Willy.

"Peter Ericsson" <pe************ **@ericsson.com > wrote in messagenews:1d******* *************** ******@phx.gbl. ..

Does anyone know if Microsoft plans to implement an C#
(.net) API for MS Cluster like the one in C++?

Or has someone else written a C# wrapper for the C++

API?

.

[Willy Denoyette [MVP]]

The management API's are also available through COM, that doesn't mean you
can't use C# to access them, simply create a interop assembly from the
automation server dll (msclus.dll) and use the API's from C#.
However, the "automation server API's" don't support notifications, a much
better "managed" option is to use System.Manageme nt namespace classes and
the WMI cluster classes MSCluster_XXXX to build cluster management
applications using C#.

I can post a sample of the latter if you are interested.

Willy.

"Peter Ericsson" <pe************ **@ericsson.com > wrote in message
news:25******** *************** *****@phx.gbl.. .

My only interest is to manage the cluster. Start and stop
resorces, get notifications when they fail, find out what
kind of resources are available in the cluster and so on.
I mean these kind of methods are available for windows
services but not for clustered resources.

I'm not an COM expert so I'd rather stick to C#.

/Peter

-----Original Message-----
There is a big difference between a wrapper and

implementing an API.

The MS cluster API's (cluster resources) are implemented

using C/C++ , the

reason is high reliability, efficiency and a low memory

footprint, something

that managed code doesn't offer, as it was not designed

to be used as a

system level platform.
The cluster management API's are available as native

C/C++ API's and a set

of COM interfaces, so if you only need to manage MS

cluster server, you

could wrap the COM api.

Willy.

"Peter Ericsson" <pe************ **@ericsson.com > wrote

in message

news:1d****** *************** *******@phx.gbl ...

Does anyone know if Microsoft plans to implement an C#
(.net) API for MS Cluster like the one in C++?

Or has someone else written a C# wrapper for the C++

API?

.

[Chuck Haeberle]

Willy,

I would be very interested in seeing such a sample. What are the WMI
Cluster Classes you mention? I have a similar need - to monitor and restart
if needed a service on a cluster, and have not had much luck to date finding
manged objects to allow me to perform this simple task. I could always issue
shell commands, but thats just ... klugy. :)

Your help would be MOST appreciated!
Chuck Haeberle
"Willy Denoyette [MVP]" wrote:

The management API's are also available through COM, that doesn't mean you
can't use C# to access them, simply create a interop assembly from the
automation server dll (msclus.dll) and use the API's from C#.
However, the "automation server API's" don't support notifications, a much
better "managed" option is to use System.Manageme nt namespace classes and
the WMI cluster classes MSCluster_XXXX to build cluster management
applications using C#.

I can post a sample of the latter if you are interested.

Willy.

"Peter Ericsson" <pe************ **@ericsson.com > wrote in message
news:25******** *************** *****@phx.gbl.. .

My only interest is to manage the cluster. Start and stop
resorces, get notifications when they fail, find out what
kind of resources are available in the cluster and so on.
I mean these kind of methods are available for windows
services but not for clustered resources.

I'm not an COM expert so I'd rather stick to C#.

/Peter

-----Original Message-----
There is a big difference between a wrapper and

implementing an API.

The MS cluster API's (cluster resources) are implemented

using C/C++ , the

reason is high reliability, efficiency and a low memory

footprint, something

that managed code doesn't offer, as it was not designed

to be used as a

system level platform.
The cluster management API's are available as native

C/C++ API's and a set

of COM interfaces, so if you only need to manage MS

cluster server, you

could wrap the COM api.

Willy.

"Peter Ericsson" <pe************ **@ericsson.com > wrote

in message

news:1d****** *************** *******@phx.gbl ...
Does anyone know if Microsoft plans to implement an C#
(.net) API for MS Cluster like the one in C++?

Or has someone else written a C# wrapper for the C++

API?

.

[leny ortega]

hi.. i'm a newbie here.. i think i have the same problem with you
peter..

i've been researching for almost a month now regarding applications/
example codes for remote cluster administration for windows 2000
advanced server using asp/vb.net.. but unfortunately, i can't see
something that is similar to my project.. hope you can give me some
ideas regarding this..

this is my problem:
we want to display on a webpage the current active nodes of clustered
servers. for ex we have:

server1a,server 1b
server2a,server 2b
server3a,server 3b

and the current active nodes are server1a, server2b, and server2b..

how can i do that in asp/vb.net? i'm developing remotely from the
servers using XP and vs.net..

and also, we want to configure the resources (eg: diskspaces, database,
windows services) from the owner (which is the active node)

anyone? please share your ideas.. i'm really frustrated now.. :sigh:
hope you can help me.. thanks..

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