prettier: Prettier crashes on formating large files

Hi! I’m working with large ASM.js files generated by Emscripten, when I debug those I use tools like Prettier to make code at lease a little bit more readable.

In case of prettier I’m getting:


<--- Last few GCs --->

[17699:0x2702f10]    20187 ms: Mark-sweep 1397.2 (1424.1) -> 1396.4 (1423.6) MB, 596.2 / 0.0 ms  (average mu = 0.145, current mu = 0.011) allocation failure scavenge might not succeed
[17699:0x2702f10]    20833 ms: Mark-sweep 1397.4 (1424.1) -> 1396.7 (1424.1) MB, 643.6 / 0.0 ms  (average mu = 0.076, current mu = 0.004) allocation failure scavenge might not succeed


<--- JS stacktrace --->

==== JS stack trace =========================================

    0: ExitFrame [pc: 0x2957d235c01d]
    1: StubFrame [pc: 0x2957d2313490]
Security context: 0x16bb6979e549 <JSObject>
    2: willBreak(aka willBreak) [0xccf8baf92a9] [/home/[moderated]/node_modules/prettier/bin-prettier.js:~9173] [pc=0x2957d2724356](this=0x37817e8826f1 <undefined>,doc=0x0388ed06f201 <Object map = 0x2804a52f5a01>)
    3: arguments adaptor frame: 3->1
    4: printArgumentsList(aka printArgumentsList) [0xccf8bafbd69...

FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory
 1: 0x8c02c0 node::Abort() [node]
 2: 0x8c030c  [node]
 3: 0xad15de v8::Utils::ReportOOMFailure(v8::internal::Isolate*, char const*, bool) [node]
 4: 0xad1814 v8::internal::V8::FatalProcessOutOfMemory(v8::internal::Isolate*, char const*, bool) [node]
 5: 0xebe752  [node]
 6: 0xebe858 v8::internal::Heap::CheckIneffectiveMarkCompact(unsigned long, double) [node]
 7: 0xeca982 v8::internal::Heap::PerformGarbageCollection(v8::internal::GarbageCollector, v8::GCCallbackFlags) [node]
 8: 0xecb2b4 v8::internal::Heap::CollectGarbage(v8::internal::AllocationSpace, v8::internal::GarbageCollectionReason, v8::GCCallbackFlags) [node]
 9: 0xecdf21 v8::internal::Heap::AllocateRawWithRetryOrFail(int, v8::internal::AllocationSpace, v8::internal::AllocationAlignment) [node]
10: 0xe97444 v8::internal::Factory::NewFillerObject(int, bool, v8::internal::AllocationSpace) [node]
11: 0x1136d5e v8::internal::Runtime_AllocateInNewSpace(int, v8::internal::Object**, v8::internal::Isolate*) [node]
12: 0x2957d235c01d
[1]    17699 abort (core dumped)  npx prettier DEF-2515.j

➜ npm --version
6.2.0
➜ node --version
v10.9.0
➜ cat /etc/os-release
NAME=Fedora
VERSION="28 (Workstation Edition)"
ID=fedora
VERSION_ID=28
PLATFORM_ID="platform:f28"
PRETTY_NAME="Fedora 28 (Workstation Edition)"

About this issue

Original URL
State: open
Created 6 years ago
Reactions: 12
Comments: 17 (5 by maintainers)

Most upvoted comments

allocations.json is 137MB. I tried he NODE_OPTIONS environment variable that @trzecieu mentioned:

NODE_OPTIONS=--max_old_space_size=16384 prettier  --write  ./allocations.json

Node memory peaked at 16.42 GB, then crashed:

FATAL ERROR: Reached heap limit Allocation failed - JavaScript heap out of memory

Anything larger gave me a

RangeError: Set maximum size exceeded

Any other workaround suggestions are welcome.

MikaelHashiCorp on Aug 29, 2022

@suchipi Thanks a lot. That actually worked for me:

$ /usr/bin/time --verbose yarn spsprettier
yarn run v1.12.3
$ NODE_OPTIONS=--max_old_space_size=4096 prettier --single-quote --trailing-comma es5 --print-width 100 --write src/spsSampleData_2.js
src/spsSampleData_2.js 26485ms
Done in 27.00s.
        Command being timed: "yarn spsprettier"
        User time (seconds): 41.90
        System time (seconds): 2.03
        Percent of CPU this job got: 161%
        Elapsed (wall clock) time (h:mm:ss or m:ss): 0:27.22
        Average shared text size (kbytes): 0
        Average unshared data size (kbytes): 0
        Average stack size (kbytes): 0
        Average total size (kbytes): 0
        Maximum resident set size (kbytes): 2966620
        Average resident set size (kbytes): 0
        Major (requiring I/O) page faults: 0
        Minor (reclaiming a frame) page faults: 848333
        Voluntary context switches: 51786
        Involuntary context switches: 6432
        Swaps: 0
        File system inputs: 0
        File system outputs: 16
        Socket messages sent: 0
        Socket messages received: 0
        Signals delivered: 0
        Page size (bytes): 4096
        Exit status: 0

mkreim on Jan 31, 2019

@mkreim You might find success by leveraging the NODE_OPTIONS environment variable that @trzecieu mentioned

suchipi on Jan 30, 2019

Can be reproduced with Unity’s demo of ASM.js

wget https://files.unity3d.com/jonas/AngryBots/Release/AngryBots.js

trzecieu on Feb 1, 2019

This works for me: pnpm dlx prettier --write YOUR_BIG_FILE_PATH

emilienbidet on Nov 9, 2023

For a passable alternative, BeatifulSoup’s prettify() succeeds where Prettier runs out of memory or ends up with call stack exceeded.

austinbutler on Nov 17, 2021

It looks like your computer might be running out of memory- see this line:

FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory

I’m not saying we couldn’t improve this, but as a workaround, you could try formatting the file on a box with more memory.

suchipi on Aug 23, 2018