Remote historical data is not retrieved completely viewing it in MAX4

Hi,
since I installed LabVIEW 8 I have some problems retrieving historical data from another computer. Sometimes not all data is retrieved (if I zoom in or out or move back in time) and this missing data won't be retrieved ever.
I already deleted the Citadel cache once, but after this even less data was retrieved... What's really weird, is, that for channels which weren't retrieved correctly, the data gets not updated anymore!
On the remote computer I have a LabVIEW DSC Runtime 7.1 running (MAX 3.1.1.3003) on my local computer MAX 4.0.0.3010 and LabVIEW 8 DSC (development system) is installed parallel to LV DSC 7.1.1 (dev system). LV 8 is installed for testing purposes (I doubt we'll switch soon) and overall I like MAX 4. The HyperTrend.dll on my local computer is version  3.2.1017.
This is really a quite annoying bug!
So long,
    Carsten
Message Edited by cs42 on 02-02-2006 09:18 AM

Hi,
> We've been unable to reproduce this issue. If you could provide some additional information, it might help us out.
I did fear this, as even on my computer it is happening just sometimes...
> 1) How many traces are you viewing?
The views I observed this in had 2 to 13 traces.
> 2) How often are the traces being updated?
For some it's pretty often (about once a second), for some it's very infrequent (no change in data, that means updated because of max time between logs). I more often see this for traces that are updated very infrequently. But I think I've seen this for frequent traces as well (for these it does work currently).
> 3) Are the traces being updated by a tag value change, or by the "maximum time between logs" setting in the engine?
It happened for both types.
> 4) What is the frequency of the "maximum time between logs" setting?
Max time between logs is 10 minutes.
> 5) Is the Hypertrend running in live mode when you zoom out/pan?
I think it happened in both modes, but it defenitely did in live mode.
> 6) If you disable/re-enable live mode in the Hypertrend, does the data re-appear?
I couldn't trigger the loading of the data. All I did is wait and work with MAX (zooming, panning, looking at data) and after quite a while (some hours), the data appeared.
Just tested this on a view where data is missing (for some days now!), and it didn't trigger data reloading. Zooming and panning don't as well. There's a gap of up to 3 days now for some traces. 7 of the 13 traces of this view are incompletely shown. All stopping at the same time but reappearing at different ones.
AFAIR from the laboratory computer (these are temperatures and it's very plausable that these didn't change), there wasn't any change in these traces so they all got logged because of max time...
I just created a new view and added these traces: the gap is there as well.
(Sorry to put this all in this entry even if it is related to you other questions, but I started this live test with disable/re-enable live mode. )
> 7)
Are the clocks on the client and server computers synchronized? If not
synchronized, how far apart are the times on the two computers?
They should be (Windows 2000 Domain synchronized to ADS), but are 5 seconds apart.
One thing I remember now: I have installed DIAdem 10 beta 2 (10.0.0b2530, USI + DataFinder 1.3.0.2526). There I had (and reported) some problems with data loading from a Citadel Database of a remote machine as well. This was accounted to some cache problem. Maybe a component is interfering?
Thanks for investigating.
Cheers,
    Carsten

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