EMFILE error on run about codeclub_lesson_builder

[arve0]

Hm, had the same trouble some time back, and then it was an installation problem with pandoc. My pandoc binary was not +x. What is your ls -l node_modules/metalsmith-pandoc/node_modules/pandoc-bin/vendor/pandoc?

[andylolz]

If I reduce the number of files (e.g. by just loading Scratch) I don’t hit the error. I think the issue comment I linked above is related – that would explain the EMFILE error code.

[arve0]

Ahh! What is your operating system? find src | wc How many files are we talking about? Is increasing allowed open files a viable solution?

[andylolz]

What is your operating system?

Mac OS 10.9. launchctl limit maxfiles says the soft limit is 256 open files.

find src | wc

I haven’t modified the src directory – I just tried to build what was there. Building just the scratch directory works fine.

Is increasing allowed open files a viable solution?

Err… It might work (testing now) UPDATE: It does work. It would probably be preferable to instead avoid surpassing the limit.

[arve0]

I also run Mac OS (10.10) and have maxfiles 256. Might be your computer is faster than mine?

I'll add a note for this in the readme. Thanks for the report! 😄

[arve0]

Added a comment in the readme.

Immediately I don't see a elegant way to fix this in the builder. Doing less in parallel, using run-sequence, might help. Might also consider patching reading of files in gulp/metalsmith in a forked repo. A PR is welcome.

I'll leave this open for now.

[arve0]

On ubuntu, one can stumble upon a similar error:

Error: watch ENOSPC

This fixes it:

echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p