kri
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Hi Leo, Let me chime in here. It seems you are using the wrong version of Java. JATOS still needs 11 or 8. If unsure install the bundled version, JATOS with Java. Best Kristian
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Hi! I'm too not sure why this happens with your study, but somehow it looks more like an issue with lab.js since you are able to access jatos.urlQueryParameters.Jatos_ID from the browser's console. Maybe your question is better asked in lab.js forum…
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Hi! Nice you like JATOS (and its documentation) :) First I want to say, that it would have been better to open a new thread in this forum, since your issue is only remotely related to the current one. This way other people can easier navigate the f…
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When I say I switched to a LAMP server, this is a default stack for setting up the server for general web use. I don't use PHP or MySQL for JATOS, they are just available on the server if needed. But if you don't use them then the LAMP stack is not …
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previously I used a docker container Maybe you limited the memory consumption with the docker container then? When I upgraded to the new version of JATOS, I wanted to use a standard LAMP server. I'm confused, LAMP stands for Linux, Apache, MySQL, an…
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I agree with Sebastiaan. For most usecases it is safe to "just" secure the server and not encrypt the database's data. Actually I've never encountered an encrypted database so far (although I'm not an admin). Best K.
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Hi! Apparently this 'oom-kill' stands for "out of memory" and Linux decided to kill JATOS because the machine run out of memory. This line 10: 18571 Killed... is just the line of the loader.sh where JATOS gets started. Now the question see…
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No, if you have terminal access to the server you can read everything in the H2 database. Use a MySQL or MariaDB for encrypted content. Best, K.
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In addition to Elisa, I'd suggest to try out one of JATOS own example studies to rule out lab.js does something weird in the end of the study. Best K.
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Hi! The embedded H2 database is not encrypted in JATOS. Although according to their docs it is possible. But, arguably, it is more important to secure the server where JATOS (with the H2 database) is running on and especially the connection to the …
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Hi! I'm not especially familiar with PsyToolkit, but as far as I know you have to compile your PsyToolkit script (.psy file) into some JavaScript before you can run it in the browser. Then you can "jatosify" your JavaScript by following th…
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Hi Riss, I'm glad you figured it out. In my experience this is a common approach, first store as much as possible because, hey, it's better to have data than not - and then reduce the submission because the server's resources aren't enough, the part…
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Hi Riss! In my latest run of participants, I still encountered the issue where participants were waiting for the "submitting data" bar, to the point where some of them timed out, however, this occurred at a significantly smaller frequency …
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There is a difference between JATOS and tools like PCIbex. While PCIbex tries to solve the whole problem of doing online experiments, including building and delivering it, JATOS just concentrates on the delivering part and leaves the building part t…
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It would be wild if my server got hacked. I agree. I never had a JATOS server got hacked. Although I see in the logs a lot of attempts. We try to make JATOS as safe as possible and luckily JATOS is not a major goal for any hackers (I guess. Why woul…
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Sorry Yoonah, for the late reply. I agree, if you do not encounter any problems while testing with a 3G connection, it looks like your server's resources aren't enough. Do you know the specs of your server? And, yes, fewer participants at the same t…
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Hi Riss! Sorry to hear about your crashed server. Good that you had your data saved before. But it's difficult to say what happened to your server. Servers crash sometimes. DigitalOcean has an uptime guarantee of 99.99%. The weird thing in your case…
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Hi Yoonah! About your first question, the invalid data one, my first thought is that you result data are too large for your participants Internet connection or your JATOS server. JATOS shows this "Transferring data" pop-up at the end of an…
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Hi Marko! Just to add my 2 cents, it usually is possible to unzip a .jzip file (it's after all a ZIP package), change it and then zip it again. But whatever you change has to be in compliance with the JATOS study archive standard. But this standard …
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Hi! You solved it already. Nice. I just want to say, for future readers, that the batch session works independent of the study link/worker type. Therefore you can use it with every type or even combination of them. Best Kristian
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The easiest is probably according to your description to put the survey into its own JATOS component. I cannot go into details but it's described in JATOS' documentation under "Write your study", especially: https://www.jatos.org/Write-yo…
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Hi Leo, I'm not an expert in OSWeb/OpenSesame, but I know some things about JATOS. If you intend to run your experiment on JATOS, you can divide it into several components in JATOS. Each component is basically its own webpage and this would allow yo…
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I tried survey.js once and found it rather easy to use, but of course you need to know your way around JavaScript and JATOS. But if you know, then it's just getting the results from survey.js in the end and send them to JATOS. Best Kristian
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Hi SpacePenguins, JATOS determines the identity of a study by its study ID. The straight forward method to achieve what you want is to clone your study (study page -> More -> Clone). This way your study gets a new study ID and is considered as…
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You develop your study on Windows, aren't you? Windows isn't very strict with letters and capitalization. But Mindprobe-JATOS runs on Linux and there it is. Your filename spelling must be precisely the same in your file system and the code. // defi…
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Hi Ines, Your file structure and the relative path you are using seem to be fine. But I could have a closer look if you agree. Can you share your study with me? The easiest would be to add user 'admin' as a member of your study. But if your study co…
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Hi, Preloading of images should work the same way as normal loading. But maybe jsPsych does something with the URL path it uses to open the file. Where are those image files stored? What is the file structure of your experiment? Best K
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Hi! Please write me your email and name in personal message and I can give you an account. K
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Hi Craig! Nice you found the error and thanks for posting your results! Best Kristian
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That looks good. In your log messages this one means that the browser cannot establish a WebSocket connection to your server during a study run: WebSocket connection to 'wss://***' failed What makes it a bit weird is that the WebSocket test shows a…