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tsserver watches node_modules directory unnecessarily #33338
Description
TypeScript Version: 3.5.3
Search Terms: node_modules watch
Actual behavior:
tsc --watch creates too many inotify watches. For source code with a few hundred files, it creates 17061 watches, shown with this script:
https://unix.stackexchange.com/a/502812
INOTIFY
WATCHER
COUNT PID CMD
----------------------------------------
17061 486 /usr/bin/node /home/danyq-reduct/MONO-REPO/reduct-app/node_modules/.bin/tsc --watch
Moving files out of node_modules causes the count to go down.
INOTIFY
WATCHER
COUNT PID CMD
----------------------------------------
11877 19225 /usr/bin/node /home/danyq-reduct/MONO-REPO/reduct-app/node_modules/.bin/tsc --watch
Expected behavior:
The number of inotify watches should be comparable to the number of source files and not depend on node_modules.
Related Issues:
- Initializing JS/TS Features is extremely slow with WSL and node_modules Initializing JS/TS Features is extremely slow with WSL and node_modules #33335
- TSServer High CPU usage TSServer High CPU usage #31248
- [2.8.0-rc] Segfault when running compiler with --d or --watch (out of memory) [2.8.0-rc] Segfault when running compiler with --d or --watch (out of memory) #22826
Activity
sheetalkamat commentedon Sep 10, 2019
It wont be unnecessary.. If you program includes source files, they will be watched.
tsc --listFileswill help you show what files are included in the program.tsc --traceResolutionwill help you diagnose why.typescript-bot commentedon Sep 12, 2019
This issue has been marked 'Working as Intended' and has seen no recent activity. It has been automatically closed for house-keeping purposes.
vikigenius commentedon Feb 7, 2021
Sheetal Nandi (@sheetalkamat) I just stumbled onto the same issue.
tsc --listfileslists 247 files. But inotify watcher count is over 5000, is this normal ?