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TypeError: Forked processes must have an IPC channel #8167
Description
v.6.4.0
Darwin MacBook-Pro.local 14.5.0 Darwin Kernel Version 14.5.0: Tue Sep 1 21:23:09 PDT 2015; root:xnu-2782.50.1~1/RELEASE_X86_64 x86_64
I think this is my error, but maybe something to document?
After upgrading from 6.3 -> 6.4 fork will not accept the following:
fork('...', [], {
stdio: [0,1,2]
});
Requiring:
fork('...', [], {
stdio: [0,1,2,'ipc']
});
Not setting stdio also works...
Activity
cjihrig commentedon Aug 18, 2016
fork()didn't support astdiooption before. Now it does.sandro-pasquali commentedon Aug 18, 2016
Thanks. Would it be useful to update these docs to emphasize that? (right now the docs seem to imply that
[0,1,2]is a valid setting, and thatipcis optional. Or maybe that's just me :)https://nodejs.org/dist/latest-v6.x/docs/api/child_process.html#child_process_options_stdio
cjihrig commentedon Aug 18, 2016
We don't currently have a good way to mark when things like that change the way that we do when a new method is added. However, I agree that it would be good to update the
stdiosection of https://nodejs.org/dist/latest-v6.x/docs/api/child_process.html#child_process_child_process_fork_modulepath_args_options to say that an'ipc'entry is required. Note, the docs you linked to probably aren't the ideal place to say that, since this isfork()specific.cjihrig commentedon Aug 18, 2016
You might want to use https://nodejs.org/api/cluster.html#cluster_cluster_settings as a reference if you plan to make a PR.
doc: document that `'ipc'` is required with fork stdio option
doc: `'ipc'` is required with fork stdio option
doc: `'ipc'` is required with fork stdio option
bchenSyd commentedon Apr 12, 2018
why the
ipcfd is only required infork? not inspawn?what's the fundamental difference between
forkandspawn? isn'tforka specific type ofspawnwhere process name is slated tonode?doc: `'ipc'` is required with fork stdio option