topic Re: The communication with QlikView Server failed (TimedOut)! in QlikView

The communication with QlikView Server failed (TimedOut)!

Mon, 26 Jan 2026 18:19:17 GMT

Hi,

I have the QMC, QVS, QDS and QVWS on different machines

In my QMC, when the reload part is done and it starts distribution, I see the below error

QVClient.ExecuteWithAttachments failed. Exception=System.Exception: The communication with QlikView Server failed (TimedOut)!

Does someone have any idea what this error is about? If it is about some network loss to QVS (I doubt that we have any network issue) but if there would be any, it could be for a very small time. Can someone tell me where to increase the timeout so that the task does not fail?

Shah

Re: The communication with QlikView Server failed (TimedOut)!

Thu, 19 Feb 2015 09:44:50 GMT

Sorry to say, this timeout is hardcoded to 1 minute. This should normally be plenty of time.

You might be having some network thoughput issues.

However there are some Distribution Service settings you can experiment with.

They are stored in [InstallationFolder]\Distribution Service\QVDistributionService.exe.config

In the "Misc Settings" section, you can tweak FileOperationBufferSize (one for DMS and one for NTFS).

I hope this helps.

Re: The communication with QlikView Server failed (TimedOut)!

IAMDV — Wed, 23 Sep 2015 09:14:17 GMT

Shah - Did you see this message again? How did you resolve it? We're having the same issue and we can't identify what's causing this issue. Any help on this really appreciated.

Re: The communication with QlikView Server failed (TimedOut)!

IAMDV — Wed, 23 Sep 2015 09:15:39 GMT

Magnus - Please can you elaborate on tweaking the buffer size? I mean why tweak it and what should be the right value?

Thank you in advance,

Cheers,

Re: The communication with QlikView Server failed (TimedOut)!

Wed, 23 Sep 2015 13:27:13 GMT

The setting is used when transferring the qvw file from QDS to QVS via a QVSFileStream. This can very large so it needs be split up in packages. Chunky vs chatty. Best performance is chunky but networks has limits on how large each package can be. Therefore the right value has to be tweak in each enviroment. That's why it is configurable.

Re: The communication with QlikView Server failed (TimedOut)!

IAMDV — Wed, 23 Sep 2015 15:03:40 GMT

Thanks Magnus. That makes sense. My understanding is that this setting is only when we do cluster distribution, however for folder distribution it shouldn't use QVS at all right?

Currently, we're only using folder distribution.But we still have this issue. Any other pointers will really help. Thanks

Re: The communication with QlikView Server failed (TimedOut)!

Thu, 24 Sep 2015 06:21:04 GMT

Thats correct. The settings only affects QVS distributions.

Re: The communication with QlikView Server failed (TimedOut)!

Anonymous — Mon, 05 Oct 2015 12:56:36 GMT

Hi Shah,

Did you got any luck with this issue? Have you resolved it already?

We're facing the same issue so any lead will be deeply appreciated.

Thanks in advance!

Re: The communication with QlikView Server failed (TimedOut)!

Tue, 27 Sep 2016 20:11:10 GMT

Hello,

Have you found a solution to this problem? I've been having this issue lately and cannot find a solution.

Thank you.

Re: The communication with QlikView Server failed (TimedOut)!

fmarvnnt — Thu, 25 Jan 2018 11:50:39 GMT

Hi Magnus,

What are your suggested value for NTFS System with many task of GB files?

Thank you in advance,

Francesco M.

Re: The communication with QlikView Server failed (TimedOut)!

fmarvnnt — Thu, 25 Jan 2018 11:51:22 GMT

Did you solve?

What value you have inserted in?

THX.

Re: The communication with QlikView Server failed (TimedOut)!

andybetterideas — Tue, 26 Mar 2019 14:33:59 GMT

I changed the 60 to 300 and it fixed it on my server. Probably overkill, but it did work.

became

Re: The communication with QlikView Server failed (TimedOut)!

varsha2991 — Thu, 06 Aug 2020 10:22:52 GMT

Hi Andy ,

Where can we find this setting ?