domain: fix clearing domains stack #4659

misterdjules · 2016-01-13T02:24:13Z

Clear domains stack even if no domain error handler is set so that
code running in the process' uncaughtException handler, or any code that
may be executed when an error is thrown and not caught, doesn't run in
the context of the domain within which the error was thrown.

I set the semver-minor label conservatively because although in my opinion it fixes an inconsistency in domains' error handling, it's a potentially breaking behavior change.

I have a similar change for the v0.12.x branch, but we may not want to back port the change to the v0.12.x branch for the same reason. And finally, this test could also be back ported to the v0.10.x branch (the change itself doesn't need to, as v0.10.x versions are not affected by the problem this change fixes), with the same reserve.

Clear domains stack __even if no domain error handler is set__ so that code running in the process' uncaughtException handler, or any code that may be executed when an error is thrown and not caught, doesn't run in the context of the domain within which the error was thrown.

misterdjules · 2016-01-13T02:25:32Z

Tests started on CI.

jasnell · 2016-01-13T16:32:40Z

LGTM. Let's let this land in master and see if there are any issues with the potentially breaking change before we decide to pull it back to v4/v0.12/v0.10

cjihrig · 2016-01-13T16:50:38Z

LGTM.

Thanks @misterdjules for being willing to work on domains :-)

misterdjules · 2016-01-13T18:46:56Z

@jasnell Sounds good, adding lts-watch-* labels.

@cjihrig My pleasure, and thank you for the review. I hope it helps!

All CI tests pass, except for regressions on Windows already triggered by previous changes, will land asap.

Clear domains stack __even if no domain error handler is set__ so that code running in the process' uncaughtException handler, or any code that may be executed when an error is thrown and not caught and that is not the domain's error handler, doesn't run in the context of the domain within which the error was thrown. PR: #4659 PR-URL: #4659 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

misterdjules · 2016-01-13T19:00:53Z

Landed in 90204cc with a slightly reworded commit title/message. I assumed that these changes were small enough to not require another review cycle.

evanlucas · 2016-01-18T13:37:48Z

@misterdjules you think this is good to land in v5.x as semver-minor?

misterdjules · 2016-01-18T17:53:36Z

@evanlucas It's always tricky to make such a decision for bug fixes that change behavior. On one hand, this is a bug fix, so technically it could even be a semver-patch. On the other hand we've seen time and time again the most insignificant bug fixes break users' code.

This is an example where we can't simply rely on strict semver definitions to decide when to merge a change. For now, I wouldn't mind merging it only in the next major release (and thus make it a semver-major), but if in the meantime we get enough feedback from users that it's a bug that should be fixed in minor/LTS releases, then we should reevaluate.

evanlucas · 2016-01-18T17:58:00Z

I do agree that with this being a behavior change, we should probably hold off and mark it as semver-major.

jasnell · 2016-01-18T18:01:10Z

Yep, let's keep the lts-watch tags in place for now but definitely hold off landing it there. /cc @nodejs/lts

rvagg · 2016-01-19T00:47:34Z

FWIW I think we can be slightly more flexible with semver deignations on v5, it's on the LTS branches where we have to be really strict and careful. I'd be fine with this landing in v5 but happy to go with the conservative option of semver-minor too.

MylesBorins · 2016-01-28T21:32:56Z

Adding the agenda tag so we can discuss this a bit more at length

MylesBorins · 2016-03-21T21:08:17Z

In the LTS meeting today this PR was discussed and it was decided that since this PR is only scheduled to land on v6 right now that we will remove the lts-watch labels and add dont-land labels for v4 and v5.

@misterdjules please feel free to chime in

misterdjules · 2016-03-21T21:16:00Z

@thealphanerd Sounds good to me!

Clear domains stack __even if no domain error handler is set__ so that code running in the process' uncaughtException handler, or any code that may be executed when an error is thrown and not caught and that is not the domain's error handler, doesn't run in the context of the domain within which the error was thrown. PR: nodejs#4659 PR-URL: nodejs#4659 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

The following significant (semver-major) changes have been made since the previous Node v5.0.0 release. * Buffer * New Buffer constructors have been added [#4682](#4682) * Previously deprecated Buffer APIs are removed [#5048](#5048), [#4594](#4594) * Improved error handling [#4514](#4514) * Cluster * Worker emitted as first argument in 'message' event [#5361](#5361). * Crypto * Improved error handling [#3100](#3100), [#5611](#5611) * Simplified Certificate class bindings [#5382](#5382) * Improved control over FIPS mode [#5181](#5181) * pbkdf2 digest overloading is deprecated [#4047](#4047) * Dependencies * Reintroduce shared c-ares build support [#5775](#5775). * V8 updated to 5.0.71.31 [#6111](#6111). * DNS * Add resolvePtr API to query plain DNS PTR records [#4921](#4921). * Domains * Clear stack when no error handler [#4659](#4659). * File System * The `fs.realpath()` and `fs.realpathSync()` methods have been updated to use a more efficient libuv implementation. This change includes the removal of the `cache` argument and the method can throw new errors [#3594](#3594) * FS apis can now accept and return paths as Buffers [#5616](#5616). * Error handling and type checking improvements [#5616](#5616), [#5590](#5590), [#4518](#4518), [#3917](#3917). * fs.read's string interface is deprecated [#4525](#4525) * HTTP * 'clientError' can now be used to return custom errors from an HTTP server [#4557](#4557). * Modules * Current directory is now prioritized for local lookups [#5689](#5689) * Symbolic links are preserved when requiring modules [#5950](#5950) * Net * DNS hints no longer implicitly set [#6021](#6021). * Improved error handling and type checking [#5981](#5981), [#5733](#5733), [#2904](#2904) * Path * Improved type checking [#5348](#5348). * Process * Introduce process warnings API [#4782](#4782). * Throw exception when non-function passed to nextTick [#3860](#3860). * Readline * Emit key info unconditionally [#6024](#6024) * REPL * Assignment to `_` will emit a warning. [#5535](#5535) * Timers * Fail early when callback is not a function [#4362](#4362) * TLS * Rename 'clientError' to 'tlsClientError' [#4557](#4557) * SHA1 used for sessionIdContext [#3866](#3866) * TTY * Previously deprecated setRawMode wrapper is removed [#2528](#2528). * Util * Changes to Error object formatting [#4582](#4582). * Windows * Windows XP and Vista are no longer supported [#5167](#5167), [#5167](#5167).

The following significant (semver-major) changes have been made since the previous Node v5.0.0 release. * Buffer * New Buffer constructors have been added [#4682](#4682) * Previously deprecated Buffer APIs are removed [#5048](#5048), [#4594](#4594) * Improved error handling [#4514](#4514) * Cluster * Worker emitted as first argument in 'message' event [#5361](#5361). * Crypto * Improved error handling [#3100](#3100), [#5611](#5611) * Simplified Certificate class bindings [#5382](#5382) * Improved control over FIPS mode [#5181](#5181) * pbkdf2 digest overloading is deprecated [#4047](#4047) * Dependencies * Reintroduce shared c-ares build support [#5775](#5775). * V8 updated to 5.0.71.31 [#6111](#6111). * DNS * Add resolvePtr API to query plain DNS PTR records [#4921](#4921). * Domains * Clear stack when no error handler [#4659](#4659). * File System * The `fs.realpath()` and `fs.realpathSync()` methods have been updated to use a more efficient libuv implementation. This change includes the removal of the `cache` argument and the method can throw new errors [#3594](#3594) * FS apis can now accept and return paths as Buffers [#5616](#5616). * Error handling and type checking improvements [#5616](#5616), [#5590](#5590), [#4518](#4518), [#3917](#3917). * fs.read's string interface is deprecated [#4525](#4525) * HTTP * 'clientError' can now be used to return custom errors from an HTTP server [#4557](#4557). * Modules * Current directory is now prioritized for local lookups [#5689](#5689) * Symbolic links are preserved when requiring modules [#5950](#5950) * Net * DNS hints no longer implicitly set [#6021](#6021). * Improved error handling and type checking [#5981](#5981), [#5733](#5733), [#2904](#2904) * OS X * MACOSX_DEPLOYMENT_TARGET has been bumped up to 10.7 [#6402](#6402). * Path * Improved type checking [#5348](#5348). * Process * Introduce process warnings API [#4782](#4782). * Throw exception when non-function passed to nextTick [#3860](#3860). * Readline * Emit key info unconditionally [#6024](#6024) * REPL * Assignment to `_` will emit a warning. [#5535](#5535) * Timers * Fail early when callback is not a function [#4362](#4362) * TLS * Rename 'clientError' to 'tlsClientError' [#4557](#4557) * SHA1 used for sessionIdContext [#3866](#3866) * TTY * Previously deprecated setRawMode wrapper is removed [#2528](#2528). * Util * Changes to Error object formatting [#4582](#4582). * Windows * Windows XP and Vista are no longer supported [#5167](#5167), [#5167](#5167).

misterdjules added domain Issues and PRs related to the domain subsystem. semver-minor PRs that contain new features and should be released in the next minor version. labels Jan 13, 2016

misterdjules added lts-watch-v4.x labels Jan 13, 2016

misterdjules closed this Jan 13, 2016

evanlucas mentioned this pull request Jan 18, 2016

v5.5.0 Release Proposal (Stable) #4742

Merged

Fishrock123 added semver-major PRs that contain breaking changes and should be released in the next major version. and removed semver-minor PRs that contain new features and should be released in the next minor version. labels Jan 18, 2016

MylesBorins added the lts-agenda label Jan 28, 2016

jasnell mentioned this pull request Mar 17, 2016

Planning for v6 #5766

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MylesBorins mentioned this pull request Mar 21, 2016

LTS Meeting - 2016-03-21 nodejs/Release#89

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MylesBorins added dont-land-on-v4.x and removed lts-watch-v0.10 labels Mar 21, 2016

MylesBorins added the dont-land-on-v5.x label Mar 21, 2016

MylesBorins mentioned this pull request Apr 18, 2016

LTS WG Meeting - 2016-04-25 nodejs/Release#95

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jasnell mentioned this pull request Apr 19, 2016

What is new in v6? #6264

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jasnell removed the lts-agenda label Apr 25, 2016

jasnell mentioned this pull request Apr 26, 2016

2016-04-26, Version 6.0.0 (Current) Release #6383

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misterdjules deleted the clear-domains-stack-after-error-handling-done branch July 24, 2017 17:35

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domain: fix clearing domains stack #4659

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domain: fix clearing domains stack #4659

domain: fix clearing domains stack #4659

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