Disconnect server when multi users login and generate report at the same time!

help
1

I tried to deploy my project to localhost server (Ubuntu, Nginx, Mongo).
But I have problem when multi users login and generate the report at the same time Sever Disconnect.
Please help me.

2

It sounds like your app server is crashing under the load. You might have to set up another server as a microservice to generate reports if that’s a heavy task. From the sounds, it could also be good to use a task queue so that the tasks aren’t run concurrently. Of course, this will mean users have to wait awhile to get their reports …

https://atmospherejs.com/?q=queue
I haven’t used it myself, but I’ve heard good things about vsivsi:job-collection.

Also see:
https://bulletproofmeteor.com/architecture/microservices-with-meteor-and-ddp
http://justmeteor.com/blog/microservices-with-meteor/

3

Thanks for your reply, I will try…

4

Excuse me, It have problem with Meteor App or Mongodb.

5

It’s hard to know without seeing the code that generates the reports but, from the symptoms you’re describing, I’d guess the app is using all the server CPU and then crashing.

6

Don’t use all the server CPU.
I use Dell 990 (i5, Ram 8 G).
In Order Collection ~ 250 000 records.

7

Ah … that’s a lot of records. Are they large documents? I’d imagine there are several good ways to crash a server by mishandling those records in server code - e.g. doing a query that pulls all (or many) of those records (in their entirety), then iterating over them with a .map function or something that does something mildly cpu or memory intensive.

8

Are you using Kadira? That might give you some insights into what’s going wrong.

9

My project is Point Of Sale System, so it is large document.
Before I used to use Laravel PHP Framework & MySQL, but don’t have problem for the same data store.
I am a newbie with Meteor & Mongo.
I tried to use Kadira, but don’t have problem with CPU, Memory, Pub/Sub.

10

Well … I’m all out of ideas.

You’ll probably need to post the relevant bit of code to get any real help with this.

11

Thanks for your helping, I will check my code again.
Could you help to check me, so I will push it to github?

12

If you put a link to a public repo, someone with a kind heart and some spare time might do a review and make suggestions.

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