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#1
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JDownloader interface frequently freezing, apparently due to high disk usage.
About a month or two ago, a problem suddenly started occurring in JDownloader and has continued to exist since then. Essentially, certain minor actions sometimes (but not always) cause the entire JDownloader interface to freeze for at least 30 seconds, sometimes over a minute. These include opening/maximizing or closing/minimizing packages in the linkgrabber list or download list, renaming packages, choosing a different YouTobe video aspect ratio/variant, adding a package to the download list, and sometimes even crawling links.
At first, I thought it was a matter of not having enough RAM. But after I bought and installed 64 GB of RAM and (successfully) changed JDownloader's RAM allocation to 16 GB in the JDownloader2.vmoptions file, this proved not to be the case. For one, thing, the RAM usage never gets even close to the 16 GB limit and my system's total RAM usage never goes above 55% even with multiple programs running. But most notably, I finally discovered that whenever the JDownloader freezes occur, it's the Disk usage rather than RAM that goes up. I discovered that in normal circumstances, Windows Task Manager shows JDownloader's Disc usage as 0 MB/s. However, whenever the freezes occur, Jdownlaoder's Disk usage in Task Manager shoots up to around 9-11 MB/s and stays in that range until the freeze stops, then abruptly drops down to normal. The Disk being used is presumably my C drive, which is a SSD. It seems that for some reason, various minor actions within JDownloader cause its Disk usage to shoot way up to the point of causing the program's interface to freeze. Note that this happens even if no file is being downloaded, meaning that the Disk usage is not due to file downloading. I don't know what could cause this or how to fix it. These freezes do not only effect JDownloader itself. If I happen to be watching a YouTube (or other online) video in a browser when the freeze happens, the video will freeze for about half a second when the JDownloader freeze starts. In fact, any time I copy a YouTube link to my clipboard and JDownloader begins to crawl the link, this freeze of the YouTube video in my browser occurs, even if JDownloader doesn't freeze. I created a log of a short session in which one of the freezes happened. My log ID: 10.09.24 23.32.55 <--> 11.09.24 02.20.28 jdlog://1745411370661/ |
#2
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Without even looking at your logs, my assumption is the following:
You got a very large downloadlist and/or linkgrabberlist which, whenever it gets saved to disk, is causing that problem. That would also explain why, according to your about dialog, JDownloader is using soo much RAM. Please read: https://support.jdownloader.org/de/k...loader-is-slow Just in case I'am right - there are some settings regarding the write-out of downloadlist/linkgrabberlist, see the following support article (scroll all the way down): https://support.jdownloader.org/de/k...nkgrabber-list -> Maybe adjusting those helps.
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Erste Schritte & Tutorials || JDownloader 2 Setup Download |
#3
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The reason my lists are so long is because I have been using JDownloader for years as a way of archiving information about files I have either downloaded or want to download. I knew my RAM usage would go up the bigger the lists got, but I figured that upgrading my RAM would be enough to fix the problem (and so far it is enough, in that JDownloader uses only a fraction of my current RAM). I didn't count on it freezing due to disk usage, though. I also thought it might be due to a different cause, because my lists have been nearly this big for years, and the problem only started about two months ago. Quote:
I've been trying for ages to find an EventScripter script that would allow copying and pasting information about JDownloader packages and files into document files so I could delete the packages from JDownloader and still keep the information archived. I could never find a script that worked. However, just a few minutes ago, I happened across a post on this forum that mentioned that there's a built-in feature called "Copy Information" that can be added to the context menu and edited. It looks like I might be able to use that to copy package and link information to text files and delete it from JDownloader. Hopefully that can whittle the list down enough to fix the problem. |
#4
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I only need the size of the latest copy (= with the highest number in filename). Quote:
The problem with this is that JD was never designed to keep such a large history. Search our forums for "download list history" and you will find similar threads and also possible workarounds (e.g. keep history in an external file). Quote:
https://board.jdownloader.org/showthread.php?t=83048 Just keep in mind that this may cause other side effects, see: https://board.jdownloader.org/showthread.php?t=96420 Quote:
Though if you really don't care about the RAM usage, you should be able to continue using JDownloader like that. Adjusting the write-out interval of your downloadlist may help - I'd suggest to experiment with this.
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JD Supporter, Plugin Dev. & Community Manager
Erste Schritte & Tutorials || JDownloader 2 Setup Download |
#5
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Last edited by beechcott; 12.09.2024 at 11:19. |
#6
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EDIT Do you frequently experience crashes?
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JD Supporter, Plugin Dev. & Community Manager
Erste Schritte & Tutorials || JDownloader 2 Setup Download Last edited by pspzockerscene; 12.09.2024 at 11:29. Reason: EDIT |
#7
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Not very often.
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#8
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Well then, consider trying it.
The possible data loss also depends on how often you really add links. If your list mostly doesn't change, you will have the older list versions in your JDownloader folder so in case of a crash you won't necessarily lose much.
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JD Supporter, Plugin Dev. & Community Manager
Erste Schritte & Tutorials || JDownloader 2 Setup Download |
#9
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I'll try it and see if it helps. I should probably be able to tell how effective it is by tomorrow.
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#10
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Which values did you change?
I'm just asking to be sure that you've changed the correct ones.
__________________
JD Supporter, Plugin Dev. & Community Manager
Erste Schritte & Tutorials || JDownloader 2 Setup Download |
#11
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I changed DownloadController.minimumsavedelay and LinkCollector.minimumsavedelay from 5000 to 60000.
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#12
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That should do.
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JD Supporter, Plugin Dev. & Community Manager
Erste Schritte & Tutorials || JDownloader 2 Setup Download |
#13
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Now that I've tried it out with the new settings, the change sort works and sort of doesn't. It works in that I don't get the freezes within a few seconds like before. However, it doesn't work, in that the freezes still happen - a minute later.
It looks like I'm going to have to whittle down my lists (and especially the linkgrabber list, which gives me many more problems than the download list) significantly more. |
#14
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You could still just rename your current cfg folder and test with a fresh config to simply have a comparison on how JDownloader behaves with an empty list to narrow it down 100% to the large downloadlist.
__________________
JD Supporter, Plugin Dev. & Community Manager
Erste Schritte & Tutorials || JDownloader 2 Setup Download |
#15
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I went back to my regular cfg folder after trying that test. Is it possible that JDownloader keeping too many downloadListXXXXXX.zip.backup and linkcollectorXXXXXX.zip.backup files could have something to do with the problem? It has roughly 1 GB of the former and 8 GB of the latter. |
#16
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Well, you can define the number of copies to store, see:
https://support.jdownloader.org/know...nkgrabber-list If you got enough time, try the following: Setup a RAM disk and run JDownloader from there. No need to do an extra install - just copy your existing complete JDownloader folder into the RAM disk. See if the freezes are gone then. Also watch your SSD write-usage while JDownloader is running.
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JD Supporter, Plugin Dev. & Community Manager
Erste Schritte & Tutorials || JDownloader 2 Setup Download |
#17
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