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Flame: v8 log conversion failed

See original GitHub issue

Expected Behavior

Generate and open Flamegraph

Current Behavior

Error: v8 log conversion failed

Steps to Reproduce (for bugs)

  1. I’m using a basic node.js app just for test:

var express = require(“express”); var app = express();

app.get(“/”, function(req, res) { res.send(“Hello World”); });


  1. using Node.js v.10.10.0 (with both clinic doctor + autocannon installed -g)
  2. clinic flame --on-port=‘autocannon -c 100 localhost:$PORT’ – node index.js
  3. when autocannon finish it produce the following error: Error: v8 log conversion failed
  4. Switching to Node.js v8.12.0 – nvm use v8.12.0 – (with both clinic doctor + autocannon installed -g) and running exactly the same command it generates correctly the flamegraph

Sample upload


@nearform/doctor@3.3.0 autocannon@2.4.1

  • Node version: Node.js v.10.10.0
  • OSX 10.13.6 (17G2307)

Issue Analytics

  • State:closed
  • Created 5 years ago
  • Comments:5 (4 by maintainers)

github_iconTop GitHub Comments

jasnellcommented, Feb 14, 2020

While I’m not @mcollina (who could be! 😉 ) I definitely think we can close this one

DylanCcommented, Feb 14, 2020

@mcollina - Should this and the related 0x issue be closed since the fix is released into Node?

Read more comments on GitHub >

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