I can’t find the article that I read a a year or so ago that actually took a deep dive into this. But COBOL can use IEEE floating point representations for numbers, but it was designed to use fixed point be default. In IEEE floating point format, where you have a mantissa and exponent, there are some floating point numbers that simply cannot be represented. For example in IEEE format it is impossible to represent exactly 9.2. You cannot come up with two integral values for a mantissa and exponent that will exactly equal 9.2. With a fixed point representation (lets say two decimal places) you can exactly represent 9.2, but you cannot represent 9.205 or even approximate it. You can only have 9.20 or 9.21.
If you do a search for “Java fixed point” you will see it’s kind of a mess. It’s less of a mess in Python but even though the language itself supports fixed point math pretty well, most of the libraries use IEEE format. In financial systems you need fixed point from end to end or you start to lose fractions of a penny.
I have problems with openhab2 (version 2.4.0) too. I had no problems before. As I’m lazy and I don’t want to spend more time trying to fix the issue, I just have a cron that restart openhab2 every 4 hours.
It works fine except that sometime the lights are not responsive I need to try again after a few minutes…
I would not like to force anyone at all. But I do have some expectations, no matter how much or less a piece of software cost… But this is a typical subject to be discussed in any open source/free projects… Often the users who complaints are beeing told not to expect anything or pay. But it´s wrong to see it like this in my opinion. If I (as a user) stop expect anything, then I might as well drop the software. It´s pointless continuing, unless you already have the piece of software you need. And then the developement will stop as well, cause there would be noone left to test it.
I thought, then “fun” stuff, is to see others using a piece of software/binding/whatever, and be pleased with it! What may not seem “fun” is how to archive this goal…
I just read the pages again… I thought the formular for becoming a member was going to be send with fax… I see now thats not the case… It´s suggest to be send using email.
One thing I cant find though - How to stop the membership?
My understanding from one of the maintainers is that using the Paper UI to put entities into the JsonDB is more efficient for the OpenHAB system than parsing the text files.
That is both a pro and a con. From what I have observed (never looked at the code) the text files are parsed every time you restart, which is an advantage if you are updating JAR files that have different channels and config parameters as a reboot will instantly ensure that what is in the jsonDB matches the newer or older JAR. Since I am changing binding version often this matches what I do.
Using PaperUI places it in the jsonDB and yes it will boot faster, BUT if you change JARs you get a mismatch of what is in the jsonDB VS what should be there to match the binding.
After the system has started I don’t believe you will notice a different between the two methods, it is purely a longer time to restart and by longer it may be 1 second difference.
edit to add:
I was not posting in this thread because the title is vulgar. It has turned into a relatively productive discussion however. It seems the original poster has left the building but if you are still reading this thread please change the title of your thread or an admin maybe can because it is offensive o people who believe in this software
thank you
andy
For developers, the fun stuff is solving some problem using code. Everything else is an imposition. The testing, the documentation, and all the rest is what you have to do. It’s not the fun part. So you will find in this and any other pure open source protect that the testing and the documentation gets neglected.
That’s just the nature of the personality.
You would probably be surprised how far down in the list “making users happy” is on the list of motivations for open source contributors.
If you find an open source project with good documentation and testing then I’ll show you a project with corporate backing with people who are paid to do these things.
That’s a good question. I think sending an email to the foundation email on the website (info@openhabfoundation.org) should be sufficient.
On RPis and other SBCs the difference can be tens of minutes, though this is assuming using NGRE or JSR223 instead of Rules DSL.
If the op wants to change it that is their perogative. But I see nothing that volatiles the community standards in the title. "Crapping itself"is a commonly used idom from software that repeatedly crashes and therefore it is an accurate description of what the op experienced. The title isn’t saying OH is crap, it’s saying that oh repeatedly crashes.
I just don’t see how it is offensive. “Crap” isn’t even usually considered to be a “bad word”, at least anywhere I’ve ever lived. Maybe it’s closer to other stronger words in other parts of the English speaking world.
As a moderator, I don’t feel like it’s my place to censor this topic.
Thanks for admitting. Quite a number of power users run stable OH installations although making wide use of advanced OH functionality.
To me that’s proof that OH is not inherently bad or broken and most people to claim just want to disguise the fact that they’re unwilling to invest enough of their time to get it to work.
See if restarting the MQTT bundle from Karaf console solves your problem. If so you can issue that via cron (instead of restarting everything).
No, the constitution says that a membership can be canceled by sending an E-Mail to the president (president@openhabfoundation.org or membership@openhabfoundation.org) [the addresses are not listed in the constitution]. Memberships can be terminated by end of a year only.
I wouldn´t know, as I have been using text files for quite some time… It gives me a much better overview, and it gives me a chance to have fully control of each items, devices etc… A simple operation like inserting tags, is so easy, but impossible in PaperUI.
I was pretty sure I read somewhere to use fax. Maybe it was just someone suggesting that…
Paypal isn´t possible if you´re in a country which support BIC/Switft code. Then you´ll need to use your bank account information and send it as an email. The idea of using email is a bit of a risky chance however. I see no where suggesting anything else.
I see no reason to join an open source project, and having the attitude you´re talking about… Make absolutly no sense to me. The developers you talk about, are/should be those who develope for their own good.
But you´re right, it´s all down to personality.
Some years ago, I joined the Joomla project. https://www.joomla.org/
This is one specific project I remember was very focused on developing as well as documentation, and helping people. It is/was however, a very big project with very much support from commercial companies as well.
Shouldn´t have been a question - The answer should have been in the documents, somewhere. Hopefully I have overlooked it somewhere, but I dont thing so
Watch out with these kinds of accusations. What may seem to be “not enough” for you can be a total different story for someone else. We´re not all alike, so please stop assuming that we are.
To state how much is enough, most often goes back to the history of the user. A huge advantage is, if it´s a user who´s already familiar with Linux or light coding.
We have had this discussion before. And my opinion hasn´t change a bit.
I believe we can all do more for people having problems if we stop focusing on their lack of time spending and stop assuming they´re all alike.
Some user do need to show more effort. But thats not what I suggest focusing on, as they´re a few.
Ahh, you´re right… found it… Perhaps it should be noticed outside the constitution as well… I doubt many people even read that document, unless they´re already a member.
I don’t.
The amount of work one needs to invest is not a fixum - it depends on the user’s knowledge and other factors and therefore varies a lot.
And the need to invest a large amount of time can be a perfectly valid reason not to use OH.
You misunderstood my statement, go re-read it with this understanding in mind.
My statement is only on those who don’t want to invest that time AND then blame OH for being bad or broken. That group of people is small, fortunately.
It seems like that should be posted in an FAQ or something a little easier to find. I never would have thought to look in the constitution for this, and as you point out, if I had I wouldn’t have found those addresses. I don’t think we want to encourage people to terminate their membership, but we shouldn’t make it hard to figure out how to do it.
Reasons contributors to open source projects have personally given me for contributing (non contribute to openHAB, for the record):
I needed a place to save the code, GitHub/Sourceforge/Bitbucket … were there and the private repos cost money
it builds up my resume
helps me make contacts
it solves a problem I need to solve, if I open source it I might get help to make it better
it’s fun
to build something of my own
In an interview they would probably say “to help the greater good” or something like that, but in casual conversation that never comes up.
Obviously, the above does not come from a scientifically valid sample of developers.
As we all know, it takes time and work to build any home automation system. If the users can not or will not spend the time then home automation and openHAB are not suitable systems for them. We can’t all go to every user’s house and build their system for them and debug their problems for them. If they can not or will not put in the time and effort necessary, they would be better served using a more commercial and less capable hub, or not getting into home automation. It is not for everyone.
Maybe sometime in the future the fragmented nature of home automation will unify on a more fixed set of standards and projects like openHAB or HA can spend their efforts building on the core instead of the hundreds of adapters required.
But this literally translates to “not all users can spend the time necessary to make openHAB work for them so you need to spend more time helping them.” I’m sorry, I don’t have that much time either so I choose to donate my time in a way that helps as many people as possible. Sometimes that means not being able to help everyone to the degree that they may want.
I need to try again after a few minutes…