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v6.12.0: max-old-space-size can no longer be set via NODE_OPTIONS #16999

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@knolleary

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@knolleary
  • v6.12.0
  • Darwin nolmac.local 16.7.0 Darwin Kernel Version 16.7.0: Thu Jun 15 17:36:27 PDT 2017; root:xnu-3789.70.16~2/RELEASE_X86_64 x86_64

As of node 6.12.0, the V8 option --max-old-space-size is no longer accepted in the NODE_OPTIONS environment variable and node exits with an error if specified.

With 6.11.5, the following works:

$ nvm use 6.11
Now using node v6.11.5 (npm v3.10.10)
$ NODE_OPTIONS="--max-old-space-size=128" node -v
v6.11.5

With 6.12.0, it fails:

$ nvm use 6.12
Now using node v6.12.0 (npm v3.10.10)
$ NODE_OPTIONS="--max-old-space-size=128" node -v
node: --max-old-space-size=128 is not allowed in NODE_OPTIONS

I can't find the release notes for 6.12 in case this was an intentional change, but the docs still list it as a valid option to specify via NODE_OPTIONS: https://nodejs.org/api/cli.html#cli_node_options_options

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