I am trying to debug a problem with forever/nodejs, and I get this stacktrace in the error log:
chdir(): Permission denied
events.js:72
throw er; // Unhandled 'error' event
^
Error: spawn EACCES
at errnoException (child_process.js:980:11)
at Process.ChildProcess._handle.onexit (child_process.js:771:34)
This looks to me like I should be able to look at line 980 of a file named "child_process.js" to see where the error is thrown. However, I cannot locate such a file on the system even with "find". Am I missing it somehow, or is the stracktrace lying?
It's part of the node.js source. See https://github.com/joyent/node/blob/master/lib/child_process.js. I believe you can also step directly through core node code using node's built-in debugger, or a package such as node-inspector.
Related
I'm running a NodeJs server on linux and after several hours up it crashes:
events.js:72
throw er; // Unhandled 'error' event
^
Error: write EIO
at errnoException (net.js:901:11)
at Object.afterWrite (net.js:718:19)
Can anyone help me please??
Why downvoting?
I actually managed to fix it. This helped a lot: How to make a node.js application run permanently?
The problem was that the process was trying to write into a closed terminal.
I am new to phant and i cannot find a suitable documentation on phant using mongodb. because i have lots of data and it memory overflow occurs. and finally i fell into following error:
HTTP output: { [Error: EMFILE, open 'phant_streams/4d16/83403f7611e5810d57f88174fbef/stream.csv']
errno: -24,
code: 'EMFILE',
path: 'phant_streams/4d16/83403f7611e5810d57f88174fbef/stream.csv' }
events.js:87
throw Error('Uncaught, unspecified "error" event.');
^
Error: Uncaught, unspecified "error" event.
at Error (native)
at Function.emit (events.js:87:13)
at Function.<anonymous> (/usr/lib/node_modules/phant/node_modules/phant-manager-http/index.js:237:12)
at PhantMeta.<anonymous> (/usr/lib/node_modules/phant/node_modules/phant-meta-nedb/lib/phant-meta-nedb.js:243:14)
at callback (/usr/lib/node_modules/phant/node_modules/phant-meta-nedb/node_modules/nedb/lib/executor.js:30:17)
at /usr/lib/node_modules/phant/node_modules/phant-meta-nedb/node_modules/nedb/lib/datastore.js:536:25
at /usr/lib/node_modules/phant/node_modules/phant-meta-nedb/node_modules/nedb/lib/persistence.js:201:12
at fs.js:1077:21
at FSReqWrap.oncomplete (fs.js:95:15)
except this sometimes following error also occurs:
FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - process out of memory
thats why i want to use mongodb to prevent this error. i searched about this and finally found sparckfun library for mongodb:
https://github.com/sparkfun/phant-stream-mongodb
i installed this but nothing happened as data still not string into mongo.
so, How will i store phant data into mongodb ?
I had the same problem, specifically trying to deploy my own Phant instance on Heroku (since I wanted to circumvent Sparkfun's 50Mb limit). After some dabbling with versions of the mongodb and mongoose libraries, I successfully forked and modified their repository so that you can either run it locally or directly deploy on heroku (just make sure you provision a MongoLab add-on). Check out my fork here: https://github.com/davidlago/phant
Hope this helps!
I have been trying to setup the Google IO web app to learn more about the polymer framework that it uses. Google recently made it open source, so I have been trying to download it, using the instructions at: https://github.com/GoogleChrome/ioweb2015
As per the instructions, I have installed Go 1.4.2, as well as gcloud (and run the update app command). I also completed the first 3 of the setup commands, but when running 'gulp setup', I get the following error:
[19:54:17] Using gulpfile c:\polymer\ioweb2015\gulpfile.js
[19:54:17] Starting 'setup'...
[19:54:17] Starting 'bower'...
[19:54:17] Starting 'godeps'...
[19:54:17] Starting 'addgithooks'...
events.js:85
throw er; // Unhandled 'error' event
^
Error: spawn ../node_modules/bower/bin/bower ENOENT
at exports._errnoException (util.js:746:11)
at Process.ChildProcess._handle.onexit (child_process.js:1053:32)
at child_process.js:1144:20
at process._tickCallback (node.js:355:11)
at Function.Module.runMain (module.js:503:11)
at startup (node.js:129:16)
at node.js:814:3
I have looked around, but I cannot find any plausible cause of the error. I am probably missing something obvious, but I would really appreciate any help that you can give.
Many thanks,
--Matt
I'm trying to add a filewatcher in PHPStorm to automatically compress my js files. I followed this tutorial but i have these errors:
cmd.exe /D /C C:/Users/Sofiane/node_modules/.bin/yuicompressor.cmd reglements.js >-o reglements.min.js
events.js:72
throw er; // Unhandled 'error' event
^
Error: spawn ENOENT
at errnoException (child_process.js:1011:11)
at Process.ChildProcess._handle.onexit (child_process.js:802:34)
Process finished with exit code 8
I don't really understand, it's the first time I use Node.js
Thanks for help !
The error usually means that child_process.spawn threw ENOENT because the executable couldn't be found. Try adding a path to java.exe to your system PATH - does it help? Another solution is to specify a path to node_modules\yuicompressor\build\yuicompressor-2.4.8.jar as a program in file watchers (instead of yuicompressor.cmd)
My app: Node.js, Express, some middleware including connect-assets and express.static.
All running on local machine (OSX, Node 0.8) in development mode (thus express.static).
Probably important details: I recently made the whole app work through HTTPS (with redirect from HTTP when necessary) and while developing I use self-signe certificate (enabled in my browser, of course).
Now, the app is often failing wit stack traces like that:
(1)
stream.js:81
throw er; // Unhandled stream error in pipe.
^
Error: write EPIPE
at errnoException (net.js:769:11)
at Object.afterWrite (net.js:593:19)
(2)
stream.js:81
throw er; // Unhandled stream error in pipe.
^
Error: socket hang up
at SecurePair.error (tls.js:948:15)
at EncryptedStream.CryptoStream._done (tls.js:432:17)
at EncryptedStream.CryptoStream._pull (tls.js:577:12)
at SecurePair.cycle (tls.js:866:20)
at EncryptedStream.CryptoStream.end (tls.js:405:13)
at Socket.onend (stream.js:66:10)
at Socket.EventEmitter.emit (events.js:126:20)
at TCP.onread (net.js:417:51)
(3)
stream.js:81
throw er; // Unhandled stream error in pipe.
^
Error: socket hang up
at createHangUpError (http.js:1264:15)
at CleartextStream.socketCloseListener (http.js:1315:23)
at CleartextStream.EventEmitter.emit (events.js:126:20)
at SecurePair.destroy (tls.js:938:22)
at process.startup.processNextTick.process._tickCallback (node.js:244:9)
Important: this happens often but not every time, so I assume this not to be a bug in my code.
I found this can be due to express.static and open files limit so I ran ulimit -n 10000 - with no effect, unfortunately.
Any ideas? This starts to be extremely frustrating.
OK, looks like I found the answer (at least I found a similar problem mentioned, tried their fix and it stopped falling):
the express.static middleware must be the last in the chain