0x not working with Mongoose package whereas Forever is working perfectly fine.

[sudhanshugaur4]

I don't know why this is happening but previously i was using Forever module with the command forever start app.js to run my node.js app but now as i am using 0x the command i wrote is 0x app.js, now in logs bellow error is printing

{ MongoError: failed to connect to server [XX.XXX.X.X:27017] on first connect [MongoError: connection 0 to XX.XXX.X.X:27017 timed out]
    at Pool.<anonymous> (/home/projects/kj_app/node_modules/mongodb-core/lib/topologies/server.js:336:35)
    at Pool.emit (events.js:180:13)
    at Connection.<anonymous> (/home/projects/kj_app/node_modules/mongodb-core/lib/connection/pool.js:280:12)
    at Object.onceWrapper (events.js:272:13)
    at Connection.emit (events.js:180:13)
    at Socket.<anonymous> (/home/projects/kj_app/node_modules/mongodb-core/lib/connection/connection.js:197:10)
    at Object.onceWrapper (events.js:272:13)
    at Socket.emit (events.js:180:13)
    at Socket._onTimeout (net.js:393:8)
    at ontimeout (timers.js:466:11)
    at tryOnTimeout (timers.js:304:5)
    at Timer.listOnTimeout (timers.js:267:5)
  name: 'MongoError',

But the thing is when using Forever i am not getting this error and everything is working perfectly fine.

[davidmarkclements]

What if you directly with node?

[sudhanshugaur4]

Yes it is working perfectly fine for both node app.js and for forever start app.js

[sudhanshugaur4]

Also when i exit the profiling by pressing Ctrl+C then i get below error but flamegraph.html get successfully created.

🔥  Process exited, generating flamegraphevalmachine.<anonymous>:2784
  printErr(str);
  ^
ReferenceError: printErr is not defined
    at TickProcessor.printError (evalmachine.<anonymous>:2784:3)
    at TickProcessor.LogReader.processLog_ (evalmachine.<anonymous>:2536:12)
    at TickProcessor.LogReader.processLogLine (evalmachine.<anonymous>:2419:10)
    at TickProcessor.processLogFile (evalmachine.<anonymous>:2812:10)
    at evalmachine.<anonymous>:3994:15
    at internal/v8_prof_processor.js:41:28
    at NativeModule.compile (bootstrap_node.js:654:7)
    at Function.NativeModule.require (bootstrap_node.js:599:18)
    at startup (bootstrap_node.js:140:20)
    at bootstrap_node.js:666:3
🔥  Flamegraph generated in
file:///home/projects/app/10182.0x/flamegraph.html

[mcollina]

@sudhanshugaur4 which version of Node.js are you using?
Can you please upload an example that exhibit this behavior?

[davidmarkclements]

Yeah that second error is definitely node version related

[sudhanshugaur4]

Node version is v9.8.0.

[davidmarkclements]

Ok so that second error is a bug in that version - bear in mind the 9 branch is experimental - only even numbers (6,8) are considered production ready Try a different version of node

…

On Mon, 9 Apr 2018 at 14:41, sudhanshugaur4 ***@***.***> wrote: Node version is v9.8.0. — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#118 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABIrPJ2dsn40jJBRWY-nztarVoDVi6Duks5tm1cCgaJpZM4TLu0K> .

[sudhanshugaur4]

Ok Let me try any Nodejs 8.X.X version, also Even numbers you mean this only for NodeJs or for all other npm packages, never heard about it.

[davidmarkclements]

Only Node, even numbers are "active" odd numbers are "current" which in this context means new features lands on this line, and stay there for at least two weeks before they are backported. Odd numbers then disappear after a new even major – so when Node 10 is released, the Node 9 line will disappear
see https://github.com/nodejs/Release

[sudhanshugaur4]

Hii actually I have two version of node installed on my system one is local and second is bitnami's version provided by default, Can you please tell me how can I pass node version in this command sudo 0x app.js.

[davidmarkclements]

Supply a path to the executable, it's in the usage section of the readme

…

On Tue, 10 Apr 2018 at 14:59, sudhanshugaur4 ***@***.***> wrote: Hii actually I have two version of node installed on my system one is local and second is bitnami's version provided by default, Can you please tell me how can I pass node version in this command sudo 0x app.js. — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#118 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABIrPGUbfrJRQOP6l4jJEJNFJ9-dfixiks5tnKycgaJpZM4TLu0K> .