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Mads

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Mads last won the day on August 21 2019

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About Mads

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  • Birthday 12/01/1975

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    Bergen, Norway
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    Trail running, skiing, science fiction, food and travel.

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    LabVIEW 2018
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    1997

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  1. Security in the age of cloud computing and IoT is a huge challenge. I do not think we should start on that discussion here. But you guys seem to assume that that means we can resort to the old ways of doing business - That NI and others should not leverage these things fully, but try to guide their users to the old ways by making sure the new ones are intentionally crippled. The fact is that most of us are way down the rabbit hole already, ignoring the risks because the benefits are too enticing or the business or societal pressure too high. If people can make a business of delivering services that are at the same level of risk as the customer is already taking in other areas (in fact in the particular case that triggered my interest in this - the security would be improved compared to the current solution - imagine that), but NI is holding them back because they think the security challenges has to be 100% solved first...well...that is a recipe for a dwindling business. The starting point of my digression was something that the supplier in fact is already partly working on. They just have not gotten around to it yet. So it is not like you are defending something that they themselves think is the holy grail of security limitations either. Arguing that the current solution is as good as it gets is never really a winning strategy.
  2. I think I have outlined the complaints quite enough already, that part was just a digression. The main point was how far off the mark (or "left handed" in this context) SystemLink is as a solution for the mentioned request in the Idea Exchange.
  3. Oh, I know how to do it. With my left hand 😉 Not my preference. It can be done better.
  4. If sufficient security for many a use case is not possible to achieve without having to put each customer on a separate server, and the creation and licensing of those servers have to be a manual process repeated every time a new customer want such a service...*and* none of this can in be abstracted into a larger platform that makes the process of managing this a breeze for users at, in this case, two ends to use...I would argue the problem is mainly a lack of imagination.
  5. I think that is a very old fashioned way of thinking.
  6. This reminded me of this idea exchange thread: https://forums.ni.com/t5/LabVIEW-Idea-Exchange/Offline-Distribution-for-Real-Time-Application/idi-p/1415250 Sure, the fact that the offline installers idea was marked as in development due to SystemLink is probably just because someone though it might accidentally be a solution for that too, but in general it seems to me that NI is designing more and more "left-handed scissors features" 😞 (SystemLink Cloud is by the way is so crippled compared to the stand-alone solution that you cannot use it for trending data for different customers (Access control on tag groups is not available, only on applications for example). To get enough access control you have to create your own SystemLink servers for each customer and get those online yourself (no cloud hosting of those at the click of a button from NI). And if you need to do regular analysis on the incoming data in SystemLink you cannot insert a set of VIs to do that, no - you need Diadem or resort to python (because "Diadem is much more powerful than LabVIEW" (!))...)
  7. Not really, but that would be one way to attack it yes, if it was not for the classes.
  8. Hahaha, both of them apply very nicely 😆 I had only thought of the first one.
  9. Sure. The idea exhange and the whole NXG vs current LabVIEW scenario always makes me think of one particular song by the Fugees...😉
  10. Ah, it's just the classes that mess things up then. One more vote for the idea of a single file distribution for classes then on the idea exchange... (or even better as fabions mentions in the comments; an upgraded and backwards compatible llb format with support for subdirectories? 👍).
  11. Any tricks to this? (I'm using LV2018) If I try to target an lvlib to an llb (because I want the llb to be a single file, to be used as a plugin), I keep getting several folders outside the llb, and none in the llb. This is with the whole lvlib included and the destination set to an output directory set to be an llb. Right now the lvlib I want included in an llb is the JKI Serialization.lvlib, which has classes included as well so it is not the simplest lvlib. I have tried all kinds of variations on where to target dependencies too..Including the lvlibs in the executable seems to be the only way to get everything nicely packaged into one file, but in this case I do not want to update the executable, I want it portable with a/several plugin(s). Not excluding unused items and allowing the build to modify libraries seem to help avoid subVIs ending up in directories outside of the target directory in some instances, but it does not help getting lvlibs into an llb. The second tidiest working solution seems to be to target the lvlibs to a directory. That fills the directory with hundreds of files (a mess I do not like), and you might get into naming collisions if you point several lvlibs to that directory because the name spacing is not kept (could have automatically separated the subVIs to namespaced folders e.g.). Using packed project libraries is perhaps one solution, but that is cumbersome, especially when dealing with lots of different targets.
  12. The application in question - would it otherwise behave smoothly with the 900 MB file, if it was able to load it, or would it become so sluggish that it would not make any sense to load that much data anyhow (i.e. the technical issue might just be of technical interest...)? Why do you not just put a limit on the file size you will load? You can always get a handle on how much a file of x megabytes typically takes when loaded, and calculate your suggested limit based on that -. either alone or combined with a reading of the available memory. If the file is above the limit and the processing permits it, you could offer the user to decimate the data or extract a subsection of it. You can also allow the user to proceed with the full file, but at least you have given him a warning.. If a crash will erase previous work the user might opt out...and if not, it will not look as bad when it does crash.
  13. Passing data between executables on the same machine that happens to have the TCP stack loaded because it has a network interface anyway does normally not require a loopback adapter (unless any of the requirements I listed are in effect). If this was a serial link, then sure - you would need a physical or virtual null modem installed. The local TCP traffic never passes through any adapter anyway. As described in the first sentence here (where the need for loopback is in place because they want to capture the truly local traffic): https://wiki.wireshark.org/CaptureSetup/Loopback You can fire up the client-server examples in LabVIEW and run those with localhost, as long as the machine happens to have a single NIC installed. Any client-server will be able to do that. That's why I was wondering what's different here.
  14. Tested the 4.2 beta with success on a Linux RT x64 target today (cRIO-9030), where I have never gotten it to work previously. Compressed and decompressed folders with multiple files and subfolders, and used the inflate/deflate functions. The files that were compressed were also transferred to a PC to verify them there, and vice-versa.
  15. What is the role of the loopback adapter in this case? Do you need it to monitor the traffic through Wireshark for example? Or is the machine without a single physical network adapter so you have the loopback installed just to get access to networking? Or is it to handle a routing issue? Otherwise the link could be fully local, with all the shortcuts that allows the network driver to take.
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