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stream: drain Transform with 0 highWaterMark #40947

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stream: drain Transform with 0 highWaterMark #40947

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@ronag ronag commented Nov 24, 2021 •
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Fixes: #40935

@nodejs-github-bot nodejs-github-bot added meta Issues and PRs related to the general management of the project. tools Issues and PRs related to the tools directory. labels Nov 24, 2021
@ronag ronag changed the title Transform hwm 0 stream: drain Transform with 0 highWaterMark Nov 24, 2021
@ronag ronag requested a review from mcollina November 24, 2021 08:43
@ronag ronag added lts-watch-v16.x stream Issues and PRs related to the stream subsystem. and removed meta Issues and PRs related to the general management of the project. tools Issues and PRs related to the tools directory. labels Nov 24, 2021
mcollina
mcollina approved these changes Nov 24, 2021
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lgtm

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ronag commented Nov 24, 2021

@nodejs/streams

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test/parallel/test-stream-passthrough-drain.js Outdated Show resolved Hide resolved
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Update test/parallel/test-stream-passthrough-drain.js
f88c666 
Co-authored-by: Luigi Pinca <luigipinca@gmail.com>
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CI: https://ci.nodejs.org/job/node-test-pull-request/41153/

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ronag commented Nov 27, 2021

Landed in 37f1dd9

@ronag ronag closed this Nov 27, 2021
ronag added a commit that referenced this pull request Nov 27, 2021
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stream: drain Transform with 0 highWaterMark
37f1dd9 
Fixes: #40935

PR-URL: #40947
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
This was referenced Nov 28, 2021
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targos pushed a commit that referenced this pull request Nov 29, 2021
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stream: drain Transform with 0 highWaterMark
86d1c0b 
Fixes: #40935

PR-URL: #40947
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
@targos targos mentioned this pull request Nov 29, 2021
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danielleadams pushed a commit that referenced this pull request Jan 30, 2022
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stream: drain Transform with 0 highWaterMark
ea8a455 
Fixes: #40935

PR-URL: #40947
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
danielleadams pushed a commit that referenced this pull request Feb 1, 2022
@ronag @danielleadams
stream: drain Transform with 0 highWaterMark
3b1c012 
Fixes: #40935

PR-URL: #40947
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
@danielleadams danielleadams mentioned this pull request Feb 1, 2022
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@paulrutter paulrutter mentioned this pull request Mar 25, 2022
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This fix is faulty and causes a regression in my stream code, which can no longer use the highWaterMark: 0 option. This issue is still present in the latest releases, including v18! #42457 seems to detail the issue. Essentially this "fix" removes all backpressure.

I explicitly test against this here, since my transform stream relies on it working.

I guess I will have to continue running node 14 on my servers.

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@kanongil can you please open a new separate issue (pointing to this PR) and I'll ping stream maintainers?

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@benjamingr It's already described in #42457, which I have amended with my info.

kanongil added a commit to kanongil/node-1 that referenced this pull request Jul 1, 2022
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stream: fix Transform with hwm 0 regression
6c98049 
Fixes: nodejs#40935
Refs: nodejs#40947
Refs: nodejs#42457
@kanongil kanongil mentioned this pull request Jul 1, 2022
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kanongil added a commit to kanongil/node-1 that referenced this pull request Jul 1, 2022
@kanongil
stream: fix Transform with hwm 0 regression
b8a1698 
Fixes: nodejs#40935
Refs: nodejs#40947
Refs: nodejs#42457
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@mcollina mcollina mcollina approved these changes

@benjamingr benjamingr benjamingr approved these changes

@lpinca lpinca lpinca approved these changes

@tniessen tniessen tniessen approved these changes

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stream.PassThrough not draining (from Node 16)
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