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@uppy/aws-s3-multipart: fix the chunk size calculation #4508

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merged 8 commits into from
Jun 19, 2023
Merged

@uppy/aws-s3-multipart: fix the chunk size calculation #4508

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f9895e0
@uppy/aws-s3-multipart: fix the chunk size calculation
aduh95 Jun 16, 2023
d640fa4
fix
aduh95 Jun 19, 2023
50e65e1
🙄
aduh95 Jun 19, 2023
bb30ed2
simplify implementation
aduh95 Jun 19, 2023
f8f137c
Create `minPartSize` and `maxMultipartParts` & write comments
Murderlon Jun 19, 2023
e74daaf
`10_000`
Murderlon Jun 19, 2023
7df634e
Make new properties private
Murderlon Jun 19, 2023
f9119b6
Merge branch 'multipart-chunk-size' of https://github.com/aduh95/uppy…
Murderlon Jun 19, 2023
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21 changes: 15 additions & 6 deletions packages/@uppy/aws-s3-multipart/src/MultipartUploader.js
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Original file line number Diff line number Diff line change
Expand Up @@ -71,12 +71,21 @@ class MultipartUploader {
: Boolean(this.#shouldUseMultipart)

if (shouldUseMultipart) {
const desiredChunkSize = this.options.getChunkSize(this.#data)
// at least 5MB per request, at most 10k requests
const minChunkSize = Math.max(5 * MB, Math.ceil(fileSize / 10000))
const chunkSize = Math.max(desiredChunkSize, minChunkSize)

const arraySize = Math.ceil(fileSize / chunkSize)
let arraySize, chunkSize
if (fileSize < 5 * MB) {
// At least 5MB per request:
chunkSize = 5 * MB;
arraySize = 1
} else {
chunkSize = Math.max(this.options.getChunkSize(this.#data), 5 * MB)
arraySize = Math.floor(fileSize / chunkSize)

// At most 10k requests per file:
if (arraySize > 10_000) {
arraySize = 10_000
chunkSize = fileSize / 10_000
}
}
this.#chunks = Array(arraySize)

for (let i = 0, j = 0; i < fileSize; i += chunkSize, j++) {
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