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In 3.4.1 version when uploading data , progress is jumping #198

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mvictor27 opened this issue Nov 29, 2024 · 5 comments
Open

In 3.4.1 version when uploading data , progress is jumping #198

mvictor27 opened this issue Nov 29, 2024 · 5 comments

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@mvictor27
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In the latest version, we’ve noticed that when attempting to upload data, bytesUploaded can occasionally exceed totalBytes. Additionally, it sometimes reports a lower value for bytesUploaded before suddenly jumping to a higher one. I'm seeing this happening on progressFor(id...
@donnywals
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Collaborator

Hi Victor, some questions that would help me investigate:

Is there any pattern to where this is more likely to happen (large files, multiple files, etc)?

And are you seeing this for a default URLSession configuration or one that's in the background?

Which platform and OS version are you seeing this on?

@mvictor27
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I tested both single and multiple file uploads, and the issue occurred with smaller video files ranging from 68 MB to 200 MB. However, I haven’t tested with larger files yet. We are using sessionConfiguration: .background(withIdentifier) and have tested this only on iOS. I couldn’t reproduce this issue in version 3.3.0.

@donnywals
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Hi @mvictor27

Investigating this had to take a backseat for a bit due to some other things popping up on my calendar. I will take a look at this in the New Year. Thanks for providing extra input!

@sylvain-villet
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Hi @donnywals, I tested v3.4.2 and had the same problem (iPad and iPhone on iOS 18.2).
I've added some debug logs in the progressFor and totalProgress delegate methods.
For a single 35MB file upload, the totalProgress goes as expected from 0 to 100%, but the progressFor goes from 0 to 100% for the first block (which is 15% of the total in this case), and then it goes from 15% to 115% for the second block, then from 30% to 130% for the third block, etc...

totalProgress: bytesUploaded: 0, totalBytes: 34766353, progress: 0.0
progressFor: bytesUploaded: 330280, totalBytes: 34766353, progress: 0.949998983212303
totalProgress: bytesUploaded: 0, totalBytes: 34766353, progress: 0.0
progressFor: bytesUploaded: 6, totalBytes: 34766353, progress: 1.7258065578520705e-05
totalProgress: bytesUploaded: 0, totalBytes: 34766353, progress: 0.0
progressFor: bytesUploaded: 5676296, totalBytes: 34766353, progress: 16.32698143518246
totalProgress: bytesUploaded: 0, totalBytes: 34766353, progress: 0.0
progressFor: bytesUploaded: 9185412, totalBytes: 34766353, progress: 26.4204071102885
progressFor: bytesUploaded: 12177840, totalBytes: 34766353, progress: 35.02766022078876
totalProgress: bytesUploaded: 0, totalBytes: 34766353, progress: 0.0
progressFor: bytesUploaded: 15377488, totalBytes: 34766353, progress: 44.230949389485865
totalProgress: bytesUploaded: 0, totalBytes: 34766353, progress: 0.0
totalProgress: bytesUploaded: 0, totalBytes: 34766353, progress: 0.0
progressFor: bytesUploaded: 20126288, totalBytes: 34766353, progress: 57.89013302603238
totalProgress: bytesUploaded: 0, totalBytes: 34766353, progress: 0.0
progressFor: bytesUploaded: 23014654, totalBytes: 34766353, progress: 66.1980679998273
progressFor: bytesUploaded: 26628740, totalBytes: 34766353, progress: 76.59342353222956
totalProgress: bytesUploaded: 0, totalBytes: 34766353, progress: 0.0
totalProgress: bytesUploaded: 0, totalBytes: 34766353, progress: 0.0
progressFor: bytesUploaded: 29517105, totalBytes: 34766353, progress: 84.90135562968022
progressFor: bytesUploaded: 33028035, totalBytes: 34766353, progress: 94.9999989932795
totalProgress: bytesUploaded: 0, totalBytes: 34766353, progress: 0.0
totalProgress: bytesUploaded: 0, totalBytes: 34766353, progress: 0.0
progressFor: bytesUploaded: 34766353, totalBytes: 34766353, progress: 100.0
totalProgress: bytesUploaded: 5242880, totalBytes: 34766353, progress: 15.080327810052438
progressFor: bytesUploaded: 5242886, totalBytes: 34766353, progress: 15.080345068118016
totalProgress: bytesUploaded: 5242880, totalBytes: 34766353, progress: 15.080327810052438
progressFor: bytesUploaded: 5242886, totalBytes: 34766353, progress: 15.080345068118016
totalProgress: bytesUploaded: 5242880, totalBytes: 34766353, progress: 15.080327810052438
progressFor: bytesUploaded: 16698856, totalBytes: 34766353, progress: 48.03165865571232
progressFor: bytesUploaded: 26194643, totalBytes: 34766353, progress: 75.34481111665639
totalProgress: bytesUploaded: 5242880, totalBytes: 34766353, progress: 15.080327810052438
totalProgress: bytesUploaded: 5242880, totalBytes: 34766353, progress: 15.080327810052438
progressFor: bytesUploaded: 28775128, totalBytes: 34766353, progress: 82.76717434238789
totalProgress: bytesUploaded: 5242880, totalBytes: 34766353, progress: 15.080327810052438
progressFor: bytesUploaded: 33522114, totalBytes: 34766353, progress: 96.42114029044116
totalProgress: bytesUploaded: 5242880, totalBytes: 34766353, progress: 15.080327810052438
progressFor: bytesUploaded: 38270915, totalBytes: 34766353, progress: 110.08032680333194
progressFor: bytesUploaded: 40009233, totalBytes: 34766353, progress: 115.08032781005244
totalProgress: bytesUploaded: 5242880, totalBytes: 34766353, progress: 15.080327810052438
totalProgress: bytesUploaded: 10485760, totalBytes: 34766353, progress: 30.160655620104876
progressFor: bytesUploaded: 10485766, totalBytes: 34766353, progress: 30.160672878170455
totalProgress: bytesUploaded: 10485760, totalBytes: 34766353, progress: 30.160655620104876
progressFor: bytesUploaded: 10485766, totalBytes: 34766353, progress: 30.160672878170455
totalProgress: bytesUploaded: 10485760, totalBytes: 34766353, progress: 30.160655620104876
progressFor: bytesUploaded: 15955064, totalBytes: 34766353, progress: 45.89225680358248
progressFor: bytesUploaded: 23696974, totalBytes: 34766353, progress: 68.16065521741668
totalProgress: bytesUploaded: 10485760, totalBytes: 34766353, progress: 30.160655620104876
totalProgress: bytesUploaded: 10485760, totalBytes: 34766353, progress: 30.160655620104876
progressFor: bytesUploaded: 25347695, totalBytes: 34766353, progress: 72.90869709572355
totalProgress: bytesUploaded: 10485760, totalBytes: 34766353, progress: 30.160655620104876
progressFor: bytesUploaded: 34018008, totalBytes: 34766353, progress: 97.84750215244033
totalProgress: bytesUploaded: 10485760, totalBytes: 34766353, progress: 30.160655620104876
progressFor: bytesUploaded: 35255879, totalBytes: 34766353, progress: 101.40804530173182
progressFor: bytesUploaded: 41345706, totalBytes: 34766353, progress: 118.92448425637282
totalProgress: bytesUploaded: 10485760, totalBytes: 34766353, progress: 30.160655620104876
totalProgress: bytesUploaded: 10485760, totalBytes: 34766353, progress: 30.160655620104876
progressFor: bytesUploaded: 43513795, totalBytes: 34766353, progress: 125.16065461338438
progressFor: bytesUploaded: 45252113, totalBytes: 34766353, progress: 130.16065562010488
totalProgress: bytesUploaded: 10485760, totalBytes: 34766353, progress: 30.160655620104876
totalProgress: bytesUploaded: 15728640, totalBytes: 34766353, progress: 45.240983430157314
progressFor: bytesUploaded: 15728646, totalBytes: 34766353, progress: 45.24100068822289
totalProgress: bytesUploaded: 15728640, totalBytes: 34766353, progress: 45.240983430157314
progressFor: bytesUploaded: 15728646, totalBytes: 34766353, progress: 45.24100068822289
totalProgress: bytesUploaded: 15728640, totalBytes: 34766353, progress: 45.240983430157314
progressFor: bytesUploaded: 25326902, totalBytes: 34766353, progress: 72.8488892694612
totalProgress: bytesUploaded: 15728640, totalBytes: 34766353, progress: 45.240983430157314
progressFor: bytesUploaded: 30899362, totalBytes: 34766353, progress: 88.87720262174177
totalProgress: bytesUploaded: 15728640, totalBytes: 34766353, progress: 45.240983430157314
progressFor: bytesUploaded: 41633020, totalBytes: 34766353, progress: 119.75089823197733
progressFor: bytesUploaded: 45246879, totalBytes: 34766353, progress: 130.14560083423189
totalProgress: bytesUploaded: 15728640, totalBytes: 34766353, progress: 45.240983430157314
totalProgress: bytesUploaded: 15728640, totalBytes: 34766353, progress: 45.240983430157314
progressFor: bytesUploaded: 45866495, totalBytes: 34766353, progress: 131.92782976114867
totalProgress: bytesUploaded: 15728640, totalBytes: 34766353, progress: 45.240983430157314
progressFor: bytesUploaded: 48756675, totalBytes: 34766353, progress: 140.24098242343683
totalProgress: bytesUploaded: 15728640, totalBytes: 34766353, progress: 45.240983430157314
progressFor: bytesUploaded: 50494993, totalBytes: 34766353, progress: 145.2409834301573
totalProgress: bytesUploaded: 20971520, totalBytes: 34766353, progress: 60.32131124020975
progressFor: bytesUploaded: 20971526, totalBytes: 34766353, progress: 60.32132849827533
totalProgress: bytesUploaded: 20971520, totalBytes: 34766353, progress: 60.32131124020975
progressFor: bytesUploaded: 20971526, totalBytes: 34766353, progress: 60.32132849827533
totalProgress: bytesUploaded: 20971520, totalBytes: 34766353, progress: 60.32131124020975
progressFor: bytesUploaded: 28092906, totalBytes: 34766353, progress: 80.8048690065363
progressFor: bytesUploaded: 32220957, totalBytes: 34766353, progress: 92.67856481811596
totalProgress: bytesUploaded: 20971520, totalBytes: 34766353, progress: 60.32131124020975
progressFor: bytesUploaded: 36865695, totalBytes: 34766353, progress: 106.03843031795714
totalProgress: bytesUploaded: 20971520, totalBytes: 34766353, progress: 60.32131124020975
totalProgress: bytesUploaded: 20971520, totalBytes: 34766353, progress: 60.32131124020975
progressFor: bytesUploaded: 42026212, totalBytes: 34766353, progress: 120.88185378546896
totalProgress: bytesUploaded: 20971520, totalBytes: 34766353, progress: 60.32131124020975
progressFor: bytesUploaded: 46257418, totalBytes: 34766353, progress: 133.05225888950733
totalProgress: bytesUploaded: 20971520, totalBytes: 34766353, progress: 60.32131124020975
progressFor: bytesUploaded: 53999555, totalBytes: 34766353, progress: 155.32131023348927
totalProgress: bytesUploaded: 20971520, totalBytes: 34766353, progress: 60.32131124020975
progressFor: bytesUploaded: 55737873, totalBytes: 34766353, progress: 160.32131124020975
totalProgress: bytesUploaded: 26214400, totalBytes: 34766353, progress: 75.40163905026219
progressFor: bytesUploaded: 26214406, totalBytes: 34766353, progress: 75.40165630832777
totalProgress: bytesUploaded: 26214400, totalBytes: 34766353, progress: 75.40163905026219
progressFor: bytesUploaded: 26214406, totalBytes: 34766353, progress: 75.40165630832777
progressFor: bytesUploaded: 30239294, totalBytes: 34766353, progress: 86.9786198166946
totalProgress: bytesUploaded: 26214400, totalBytes: 34766353, progress: 75.40163905026219
progressFor: bytesUploaded: 33542098, totalBytes: 34766353, progress: 96.47862115419468
totalProgress: bytesUploaded: 26214400, totalBytes: 34766353, progress: 75.40163905026219
totalProgress: bytesUploaded: 26214400, totalBytes: 34766353, progress: 75.40163905026219
progressFor: bytesUploaded: 35296429, totalBytes: 34766353, progress: 101.52468106159999
totalProgress: bytesUploaded: 26214400, totalBytes: 34766353, progress: 75.40163905026219
progressFor: bytesUploaded: 47165936, totalBytes: 34766353, progress: 135.6654694267184
totalProgress: bytesUploaded: 26214400, totalBytes: 34766353, progress: 75.40163905026219
progressFor: bytesUploaded: 48404487, totalBytes: 34766353, progress: 139.22796849010882
totalProgress: bytesUploaded: 26214400, totalBytes: 34766353, progress: 75.40163905026219
progressFor: bytesUploaded: 59242435, totalBytes: 34766353, progress: 170.4016380435417
totalProgress: bytesUploaded: 26214400, totalBytes: 34766353, progress: 75.40163905026219
progressFor: bytesUploaded: 60980753, totalBytes: 34766353, progress: 175.4016390502622
progressFor: bytesUploaded: 31457289, totalBytes: 34766353, progress: 90.48199274741299
totalProgress: bytesUploaded: 31457280, totalBytes: 34766353, progress: 90.48196686031463
totalProgress: bytesUploaded: 31457280, totalBytes: 34766353, progress: 90.48196686031463
progressFor: bytesUploaded: 31457289, totalBytes: 34766353, progress: 90.48199274741299
totalProgress: bytesUploaded: 31457280, totalBytes: 34766353, progress: 90.48196686031463
progressFor: bytesUploaded: 41595575, totalBytes: 34766353, progress: 119.64319352104606
totalProgress: bytesUploaded: 31457280, totalBytes: 34766353, progress: 90.48196686031463
progressFor: bytesUploaded: 46828521, totalBytes: 34766353, progress: 134.69494772718897
totalProgress: bytesUploaded: 31457280, totalBytes: 34766353, progress: 90.48196686031463
progressFor: bytesUploaded: 57785453, totalBytes: 34766353, progress: 166.210856226421
progressFor: bytesUploaded: 64485315, totalBytes: 34766353, progress: 185.48196585359415
totalProgress: bytesUploaded: 31457280, totalBytes: 34766353, progress: 90.48196686031463
totalProgress: bytesUploaded: 31457280, totalBytes: 34766353, progress: 90.48196686031463
progressFor: bytesUploaded: 64485315, totalBytes: 34766353, progress: 185.48196585359415
totalProgress: bytesUploaded: 31457280, totalBytes: 34766353, progress: 90.48196686031463
progressFor: bytesUploaded: 66223633, totalBytes: 34766353, progress: 190.48196686031463

@donnywals
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Thanks for looking at this @sylvain-villet! Very useful information to have since I haven't been able to sit down and investigate this just yet.

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@donnywals @mvictor27 @sylvain-villet