XenServer Plugin - Unable to connect to your data

sorry about last post, it seems I cannot delete it for now...

What kind of data source are you using?

We do not have a xenserver plugin, but a xenserver console. Is this what you are using to connect to your pool?

Hi!

Yes, I am using the Xenserver Console. My data source is a MySQL-server.
It is just one of 3 Xenserver pools, where the connect fails - the one with most of my VMs (about 70 VMs).
Could it be a problem with the large number of VMs?

Stril

Just to be clear, the "unable to connect to data source" message is a
from RDM to indicate your MySQL server is unavailable, no?

Could you send a screenshot of the error dialog?

Hello Maurice!

Of course, the error dialog is quite strange, but I thought, that would be a principle problem of RDM.

Every time, I try to start a session, that fails (e.g. a VNC session to a system that is not running), i am getting two error dialogs:

- Failed to connect to server !
- Unable to connect to your data source

And - 100% shure - the datasource is available all the time! Pressing o.k. lets me go on working.

I attached two screenshots:
screen_connect_xen.jpg
screen_connect_vnc.jpg


As long as the connection to the client-system is working, i do not have any problem with my data source.

Stril

Hello,

Is there something relevant in Help - View application logs?

Hello!

Not really:
[11.07.2014 17:17:07 - 9.2.6.0]ERROR XenServerManager::xenServerHost was null, it may be because the session was lost by the server, attempt to reconnect

Is it "normal", that RDM always thinks, the data source is offline, when a connection fails?

Stril

No it's not. We had a old bug fixed. What version do you use?

Hello!

As written in the first post: RDM 9.2.6.0

Stril

Update to RDM 9.2.10 to get the fix with the crash and offline.

Hi!

The update did change the behaviour.
The Xenserver-Connect does still fail, but the data source error does not appear.

Now, there is no error message, when I start the connection.

Regards,
Stril

still nothing in the application logs?

Hi Maurice!

Now, I start the session and then, I wait infinite. Application Log shows:

[14.07.2014 08:38:22]ERROR SILENT System.Collections.Generic.KeyNotFoundException: Der angegebene Schlüssel war nicht im Wörterbuch angegeben.
bei System.ThrowHelper.ThrowKeyNotFoundException()
bei System.Collections.Generic.Dictionary`2.get_Item(TKey key)
bei Devolutions.CitrixInterface.XenServerManager.GetHost(Session session)
[14.07.2014 08:38:22 - 9.2.10.0]ERROR XenServerManager::xenServerHost was null, it may be because the session was lost by the server, attempt to reconnect
[14.07.2014 08:38:30]ERROR SILENT System.Collections.Generic.KeyNotFoundException: Der angegebene Schlüssel war nicht im Wörterbuch angegeben.
bei System.ThrowHelper.ThrowKeyNotFoundException()
bei System.Collections.Generic.Dictionary`2.get_Item(TKey key)
bei Devolutions.CitrixInterface.XenServerManager.GetHost(Session session)

Stril

Hello,

We havent touched that class since july 2013, our server is 6.0.2 though

Are the pools that work on a different server?

Hello,

Xenserver Pools cannot share a server.
All the pools are on Xenserver 6.2, but the one with the highest number of VMs fails.

Regards,
Stril