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qvd1rkqv
Creator
Creator

QVS Cluster Issue

We just added a 2nd QVserver to our environment for the purpose of load balancing documents for users. We're using the native QV clustering and are not running IIS. We use the IE Plugin.

Scenario:

Server1 - QVS - QVWS - Management

Server2 - QVS

Server3 - QDS

Server1 and Server2 are setup to Cluster. Upon setup we found all was working except that some users were getting an error in IE referring to (iis_authenticate ..... QVSTunnel.dll%3Fhost%3DServer2)

We opened a case with QlikTech which at one point they had us add a "Link Machine Name" in the cluster setup. This stopped the user errors .... however now all users are connecting to server1. Even though in the web logs it shows a descision is being made to load balance to server2 the document is being loaded on server1.

Caviat: the name that we entered in for "Link Machine Name" is a DNS name that resolves to server1.

Ports are open and server1 and server2 respond on port 4747. We are not tunneling.

18 Replies
danielrozental
Master II
Master II

Maybe some of the users have a firewall blocking the 4747 port for accessing Server2. Have you checked that?

Not applicable

We found that with some of our clients this error crops up when people are making the documents a Favourite in IE, using the URL as shown when you open a document.

I'll have to aska colleague about the solution. You might find the favourites are causing an issue for you too.

Also, re: the cluster. Depending how you set the balancing to work, users may never see server 2 (unless you do round robin)

Bill_Britt
Former Employee
Former Employee

The plugin client talks to the server on port 4747. So once you click a link in the accesspoint to open the document in plugin, it needs a way to get back to the server. Most of the time it is the same as the AccessPoint.

Another thing you can try is just putting

  FromRequest

in the link machine name.

Bill - Principal Technical Support Engineer at Qlik
To help users find verified answers, please don't forget to use the "Accept as Solution" button on any posts that helped you resolve your problem or question.
qvd1rkqv
Creator
Creator
Author

OK makes sense. The DNS name we have in Link Machine Name is a name we have resolving  to the Access Point server. Can you explain what putting "FromRequest" in for the Link Machine Name would do? Thanks.

Bill_Britt
Former Employee
Former Employee

It is some old code that is still used. What it does it looks at the URL the request came from and that is what it uses for the link machine name. If you can find an old version 9 manual you will find it in there.

Link Machine Name

If your QlikView Server cluster is not exposed outward

with the same name as is used internally, you must enter

your external name here in order for the QlikView Plug-in

and the QlikView Java clients to work.

If left empty, the name exposed for the clients will be the

computer name of the QlikView Server.

To mimic the behavior of version 8.5, you can enter

(FromRequest) here. The name exposed outward will

then be the same as the url the client uses to connect to the

AccessPoint, that is the setting is taken from the request

coming from the client.

Bill - Principal Technical Support Engineer at Qlik
To help users find verified answers, please don't forget to use the "Accept as Solution" button on any posts that helped you resolve your problem or question.
qvd1rkqv
Creator
Creator
Author

Thanks for the info. I tried "FromRequest" and it didn't help. I also tried another QV plugin as things seem to be pointing there but to no avail as well. I have a call scheduled with QlikTech shortly and will report back the results. Thanks.

qvd1rkqv
Creator
Creator
Author

Issue resolved by adding the 2nd server in the cluster to Trusted Sites. See MS KB934366

support.microsoft.com/kb/934366

Not applicable

Hi

We are experiencing a smilar issue on our clustered environment running QV11 SR1.  Can you expand on what your solution was?  Did you need to add the second server to the Trusted Sites on every users machines or on the server itself?

Also we have found that even when we set a document to be available only on one of the nodes (through User Documents --> ... --> Document Available = Never), QlikView ignores this option and will still load the document here anyway.  I just wondered if you might have experienced this same issue?

Thanks

David

qvd1rkqv
Creator
Creator
Author

Trusted sites needs to be added on all client machines. We did this via system policy. We don't limit a specific document to a specific server so have not experienced that problem.