events.action: opened
events.author: uhyo
events.masked_author: username_0
events.text: ### Version
  
  [v2.4.5](https://github.com/nuxt.js/releases/tag/v2.4.5)
  
  ### Reproduction link
  
  [https://github.com/username_0/gengou-yosou/tree/flyio](https://github.com/username_0/gengou-yosou/tree/flyio)
  
  ### Steps to reproduce
  
  Run `npx nuxt generate`.
  
  
  ### What is expected ?
  
  Nuxt should generate 4889 static pages (4 from `pages` and 4885 as instructed in `nuxt.config.js`) without exhausting memory.
  
  
  ### What is actually happening?
  
  `JavaScript heap out of memory` error occurs (on my PC with 8GB of memory).
  
  ```
  ℹ Production build                                                           10:45:02
  ✔ Builder initialized                                                        10:45:02
  ✔ Nuxt files generated                                                       10:45:02
  
  ✔ Client
    Compiled successfully in 8.73s
  
  ✔ Server
    Compiled successfully in 3.71s
  
  
  Hash: 2b064fae45a5ab220fa8
  Version: webpack 4.29.5
  Time: 8730ms
  Built at: 2019-02-28 10:45:13
                           Asset       Size  Chunks             Chunk Names
  ../server/client.manifest.json   6.32 KiB          [emitted]  
         105b44c228445b1c9246.js   39.7 KiB       1  [emitted]  app
         1b7b70fde28ccc903939.js   2.97 KiB       7  [emitted]  pages/search
         3257a673f63e2552412d.js    155 KiB       2  [emitted]  commons.app
         6065dc6a071d304c8a5c.js    2.7 KiB       5  [emitted]  pages/list/_id
         686fc8e50276ec882be9.js   3.65 KiB       3  [emitted]  pages/_gengou/index
         6a105754fe9556767f41.js   3.14 KiB       8  [emitted]  pages/template/gengou
         6d633a92122a24985760.js   51.3 KiB       0  [emitted]  
         7572a37206b342264d67.js   1.29 KiB       4  [emitted]  pages/index
         7e424e0b065df14e8d3f.js  466 bytes       6  [emitted]  pages/random
                        LICENSES  486 bytes          [emitted]  
         f10fff28c29091d8d8ee.js    2.6 KiB       9  [emitted]  runtime
   + 2 hidden assets
  Entrypoint app = f10fff28c29091d8d8ee.js 3257a673f63e2552412d.js 105b44c228445b1c9246.js
  
  Hash: c7341f34eb9da355820a
  Version: webpack 4.29.5
  Time: 3712ms
  Built at: 2019-02-28 10:45:16
                    Asset       Size  Chunks             Chunk Names
  0e34725d5dff9dc18fcc.js   53.6 KiB    3, 7  [emitted]  pages/list/_id
  1b8a280131b10484a5cf.js   53.6 KiB    5, 7  [emitted]  pages/search
  1c342de4b10ae6a9765c.js  463 bytes       4  [emitted]  pages/random
  426e227990f2f5736949.js   50.9 KiB       7  [emitted]  
  4b13172a835655cba71b.js   3.08 KiB       6  [emitted]  pages/template/gengou
  8d222bf0036c3f3690c2.js   3.42 KiB       1  [emitted]  pages/_gengou/index
  ad89d28763f905c28785.js   1.43 KiB       2  [emitted]  pages/index
                server.js   28.9 KiB       0  [emitted]  app
     server.manifest.json  963 bytes          [emitted]  
   + 8 hidden assets
  Entrypoint app = server.js server.js.map
  ℹ Generating pages                                                           10:45:16
  
  <--- Last few GCs --->
  
  [6544:0x423ff70]    40055 ms: Mark-sweep 1359.9 (1446.8) -> 1348.4 (1449.3) MB, 805.1 / 0.0 ms  (average mu = 0.151, current mu = 0.071) allocation failure scavenge might not succeed
  [6544:0x423ff70]    41139 ms: Mark-sweep 1362.1 (1449.3) -> 1350.7 (1451.8) MB, 1026.7 / 0.0 ms  (average mu = 0.098, current mu = 0.053) allocation failure scavenge might not succeed
  
  
  <--- JS stacktrace --->
  
  ==== JS stack trace =========================================
  
      0: ExitFrame [pc: 0x37fd8cedbe1d]
  Security context: 0x1c3fe9a9e6e1 <JSObject>
      1: formatRaw(aka formatRaw) [0xa0c0c18fe09] [internal/util/inspect.js:~474] [pc=0x37fd8da125d7](this=0x2487ff4826f1 <undefined>,ctx=0x2c820b2c42d1 <Object map = 0x1e1f3c7c7591>,value=0x1c3fe9a8faa9 <JSFunction String (sfi = 0x139b35691519)>,recurseTimes=0)
      2: inspect(aka inspect) [0xa0c0c189bf9] [internal/util/inspect.js:~154] [pc=0x37fd8cf6cd39](thi...
  
  FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory
   1: 0x8daaa0 node::Abort() [node]
   2: 0x8daaec  [node]
   3: 0xad73ce v8::Utils::ReportOOMFailure(v8::internal::Isolate*, char const*, bool) [node]
   4: 0xad7604 v8::internal::V8::FatalProcessOutOfMemory(v8::internal::Isolate*, char const*, bool) [node]
   5: 0xec4c32  [node]
   6: 0xec4d38 v8::internal::Heap::CheckIneffectiveMarkCompact(unsigned long, double) [node]
   7: 0xed0e12 v8::internal::Heap::PerformGarbageCollection(v8::internal::GarbageCollector, v8::GCCallbackFlags) [node]
   8: 0xed1744 v8::internal::Heap::CollectGarbage(v8::internal::AllocationSpace, v8::internal::GarbageCollectionReason, v8::GCCallbackFlags) [node]
   9: 0xed43b1 v8::internal::Heap::AllocateRawWithRetryOrFail(int, v8::internal::AllocationSpace, v8::internal::AllocationAlignment) [node]
  10: 0xe9d834 v8::internal::Factory::NewFillerObject(int, bool, v8::internal::AllocationSpace) [node]
  11: 0x113cf9e v8::internal::Runtime_AllocateInNewSpace(int, v8::internal::Object**, v8::internal::Isolate*) [node]
  12: 0x37fd8cedbe1d 
  zsh: abort (core dumped)  npx nuxt generate
  ```
  
  ### Additional comments?
  
  Sorry that I haven't managed to make a minimal reproduction.  
  
  <!--cmty--><!--cmty_prevent_hook-->
  <div align="right"><sub><em>This bug report is available on <a href="https://cmty.app/nuxt">Nuxt</a> community (<a href="https://cmty.app/nuxt/nuxt.js/issues/c8746">#c8746</a>)</em></sub></div>
events.title: Nuxt runs out of memory while generating thousands of pages
events.type: issue
events.action: created
events.author: pimlie
events.masked_author: username_1
events.text: Try to increase node's memory limit. Looking at your error its still at the default 1.5GB. Try to increase it by running node with e.g.`node --max_old_space_size=4000` to set the limit to 4GB
  
  If it then still runs out of memory you probably have a memory leak somewhere.
events.type: comment
events.action: closed
events.author: uhyo
events.masked_author: username_0
events.type: issue
events.action: created
events.author: uhyo
events.masked_author: username_0
events.text: @plmlie I didn't notice the `generate.concurrency` config; sorry about that.
  I admit that it's not a bug as Nuxt has appropriate config for my case. 
  Thank you very much.
events.type: comment