client.files().downloadBuilder drops download speed suddenly

Question

I use this simplified java code to download some binary files:&nbsp;DbxClientV2 client;//some clientString filePath;//some file pathOutputStream out;//some output streamtry (DbxDownloader&lt;FileMetadata&gt; dbxDownloader = client.files().downloadBuilder(filePath).start()) {&nbsp; &nbsp; dbxDownloader.download(out);}This code works fine generally and I get download speed from 7 to 23 mbps which is fine. The problem is that sometimes download speed drops to 1-2 &nbsp;mbps which is really bad. Here is an application log:2024-04-04 12:04:33.574 24309-24501 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 18, file: id:10UWZKWhJqcAAAAAAAJBqQ, size: 23713802024-04-04 12:04:38.965 24309-24522 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 23, file: id:10UWZKWhJqcAAAAAAAJBqg, size: 29285662024-04-04 12:04:44.306 24309-24524 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 23, file: id:10UWZKWhJqcAAAAAAAJBqw, size: 29562752024-04-04 12:04:47.684 24309-24527 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 19, file: id:10UWZKWhJqcAAAAAAAJBrA, size: 24076442024-04-04 12:04:52.196 24309-24553 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 23, file: id:10UWZKWhJqcAAAAAAAJBrQ, size: 29523672024-04-04 12:04:57.285 24309-24564 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 23, file: id:10UWZKWhJqcAAAAAAAJBrg, size: 29402332024-04-04 12:05:03.335 24309-24569 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 19, file: id:10UWZKWhJqcAAAAAAAJBrw, size: 23785432024-04-04 12:05:04.833 24309-24472 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 19, file: id:10UWZKWhJqcAAAAAAAJBsA, size: 24249702024-04-04 12:05:15.569 24309-24582 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 23, file: id:10UWZKWhJqcAAAAAAAJBsg, size: 29878882024-04-04 12:05:24.744 24309-24591 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 19, file: id:10UWZKWhJqcAAAAAAAJBtA, size: 23918652024-04-04 12:05:29.365 24309-24592 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 23, file: id:10UWZKWhJqcAAAAAAAJBtg, size: 29199182024-04-04 12:05:29.664 24309-24573 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 1, file: id:10UWZKWhJqcAAAAAAAJBsQ, size: 29322852024-04-04 12:05:33.909 24309-24472 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 19, file: id:10UWZKWhJqcAAAAAAAJBtw, size: 24395222024-04-04 12:05:43.774 24309-24600 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 23, file: id:10UWZKWhJqcAAAAAAAJBuQ, size: 29398362024-04-04 12:05:48.715 24309-24601 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 23, file: id:10UWZKWhJqcAAAAAAAJBug, size: 29830212024-04-04 12:05:52.969 24309-24598 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 1, file: id:10UWZKWhJqcAAAAAAAJBuA, size: 29592832024-04-04 12:05:53.920 24309-24703 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 23, file: id:10UWZKWhJqcAAAAAAAJBuw, size: 29672352024-04-04 12:06:00.351 24309-24472 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 7, file: id:10UWZKWhJqcAAAAAAAJBvA, size: 29140842024-04-04 12:06:02.282 24309-24720 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 19, file: id:10UWZKWhJqcAAAAAAAJBvQ, size: 23921192024-04-04 12:06:08.013 24309-24726 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 23, file: id:10UWZKWhJqcAAAAAAAJBvg, size: 29662482024-04-04 12:06:11.106 24309-24472 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 19, file: id:10UWZKWhJqcAAAAAAAJBvw, size: 24149622024-04-04 12:06:16.789 24309-24734 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 23, file: id:10UWZKWhJqcAAAAAAAJBwA, size: 29512122024-04-04 12:06:21.424 24309-24745 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 19, file: id:10UWZKWhJqcAAAAAAAJBwQ, size: 23880512024-04-04 12:06:31.055 24309-24748 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 23, file: id:10UWZKWhJqcAAAAAAAJBxA, size: 29266402024-04-04 12:06:33.903 24309-24749 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 19, file: id:10UWZKWhJqcAAAAAAAJBxQ, size: 24219432024-04-04 12:06:40.335 24309-24751 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 23, file: id:10UWZKWhJqcAAAAAAAJBxg, size: 2928264See the following records:2024-04-04 12:05:29.664 24309-24573 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 1, file: id:10UWZKWhJqcAAAAAAAJBsQ, size: 29322852024-04-04 12:05:52.969 24309-24598 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D &nbsp;loading file: speed: 1, file: id:10UWZKWhJqcAAAAAAAJBuA, size: 2959283&nbsp;&nbsp;Why is that?&nbsp;&nbsp;And yes: I DON'T have problems with the internet -- speed dropping occurs on different network environments -- lan, wifi, mobile internet.

Greg-DB · Answer

Your connection speed to Dropbox depends on the routing you get between your ISP and our servers, and may be slower than your ISP's rated speeds.
&nbsp;
Sometimes resetting or retrying your connection gets you a different route and better speeds, but that is outside of our control. Some ISPs also throttle sustained connections so if you see an initial high connection speed followed by lower speeds, that could be the reason.

programmer · Answer

Unfortunately the issue is not about my ISP. The same application code works fine for hours if using google drive.

I could try to check if it is a plan related issue, but I can't -- my country is not in the list on payment form. Could you give me a "Plus" plan for a couple of days? I will tell which account for.

Greg-DB · Answer

The network route/performance between you and the Dropbox servers may be different than that between you and the Google servers, so that may not be a useful comparison.
&nbsp;
I can't give you a free temporary upgrade, but the connection speed is not dependent on your plan type anyway.

programmer · Answer

I understand that all can be explained the way that the things depend on depend on depend on ... The reality is it works for google drive and works poorly for dropbox. So that I can not suggest the users of my application to choose dropbox and only allow them to use google.I would suggest you check on your site the logs or whatever given the file ids from the log I gave you. If you need fresh logs I can provide it.

Greg-DB · Answer

Thanks for the feedback! Unfortunately I can neither look up nor modify your connection speed based on the file IDs (or other identifiers) though.

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client.files().downloadBuilder drops download speed suddenly

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