topic Re: Reloading qvw without saving to disk. in QlikView

Reloading qvw without saving to disk.

Fri, 06 May 2016 23:15:21 GMT

Hi Guys,

My current qlikserver architecture has a qvw that connects to databases and saves the data to qvds. Once that is done reloading, I have another qvw that grabs all the data and links them and publishes it to the webserver and this works great. Recently I was told that the server within a few month can no longer be saving any data on its hard drive (everything has to be in RAM/cached). I'm having a hard time understanding how to change my deployment to meet those requirements as whenever data is reload is automtically saves the data to the qvw.

Your help is greatly appreciated.

Re: Reloading qvw without saving to disk.

swuehl — Sat, 07 May 2016 22:01:27 GMT

Not sure how this should work. As far as I know, QlikView needs to save to disk for storing QVWs, QVDs, logs etc.

Also during reload and distribution, saving the QVW is needed.

Maybe the server uses a RAM disk which appears as standard drives to applications (so for the applications, there will still be (RAM) disks to write to).

But even then, never writing the QVWs etc. to disk seems to be quite risky. Hope you spent some time on disaster recovery planning.

Re: Reloading qvw without saving to disk.

Sat, 07 May 2016 22:19:22 GMT

Hi swuehl‌,

Disaster recovery is not an issue since the server will always be pulling data from other servers. The only thing I would have to maintain is the layout which I'm hoping can be saved. All I need is the data i'm grabbing from other servers to not be written to disk. Are you aware of someone that may know the answer to that? Maybe if I call qlik themselves?

Re: Reloading qvw without saving to disk.

swuehl — Sat, 07 May 2016 23:07:40 GMT

Might be a good idea to get in contact with qlik support.

Re: Reloading qvw without saving to disk.

Wed, 27 Sep 2017 20:56:11 GMT

Hi Yusof,

Did you ever find a solution for this issue? I'm dealing with a similar requirement at the moment.

Thanks!

Koen

Re: Reloading qvw without saving to disk.

Peter_Cammaert — Wed, 27 Sep 2017 21:18:59 GMT

AFAIK there is no solution for this "issue". QDS writes information to disk. QVS reads information from disk. That's how they talk to each other.

Can you describe your requirement (preferably in a new discussion)? There may be other solutions or workarounds available that are not that difficult to implement.

Re: Reloading qvw without saving to disk.

Wed, 27 Sep 2017 21:40:19 GMT

Thanks for the quick reaction!

You can find the new discussion here.