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Debugging: no simple way to get a list of pending async computations #17862

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Debugging: no simple way to get a list of pending async computations#17862
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feature requestIssues requesting new Node.js features.inspectorIssues and PRs related to the V8 inspector protocol.

Description

@reverofevil
reverofevil
opened on Dec 25, 2017
  • Version: v8.9.3 / any
  • Platform: Windows 8.1 x64 / any
  • Subsystem: debugger API

Consider the case when some library created a long setTimeout or any setInterval and didn't cancel it when finished some main action. There should be a tab in Inspector (and corresponding debugger API) to show the list of pending asynchronous computations, so that it's clear why Node.js process is unable to shut down.

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  1. Trott commented on Dec 25, 2017

    @Trott
    Trott
    on Dec 25, 2017
    Member

    Ref: #1128

  2. Trott
    added
    feature requestIssues requesting new Node.js features.
    on Dec 25, 2017

  3. Trott commented on Dec 25, 2017

    @Trott
    Trott
    on Dec 25, 2017
    Member

    @nodejs/v8-inspector

  4. joyeecheung commented on Dec 27, 2017

    @joyeecheung
    joyeecheung
    on Dec 27, 2017
    Member

    Technically speaking the requested information is already exposed via process._getActiveHandles(), the missing part is probably a new domain in the inspector protocol that integrate this information.

    Note that with #14901 and nodejs/llnode#122 it's possible to get that information from a core dump or a running process attached by lldb.

  5. refack
    added
    inspectorIssues and PRs related to the V8 inspector protocol.
    on Nov 11, 2018

  6. refack commented on Nov 11, 2018

    @refack
    refack
    on Nov 11, 2018
    Contributor

    Put into https://github.com/nodejs/node/projects/13 backlog

  7. refack
    closed this as completedon Nov 11, 2018
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