Expressjs pm2 ignore watch public/images folder

Question

I have a website using nodejs. Problem is when user upload images the site stop working. That because of PM2 restart server when file change I think. How to solve this problem. thank you

pm2 does not automatically restart the processes it manages unless you specifically ask it to. Alternatively you could save the files in a folder outside of your working directory, which is actually better as the data should be separated from the code. Also please show us the log files by issuing `pm2 logs ` — Vasil Dininski, Jun 28 '16 at 08:29

Rafal Wiliński · Accepted Answer · 2016-06-28T08:33:23.753

44

PM2 has special flag --ignore-watch flag.

Try creating file process.json in the same directory where your app.js/index.js is and paste this:

{
  "watch": ["server", "client"],
  "ignore_watch" : ["node_modules", "public/images"],
  "watch_options": {
    "followSymlinks": false
  }
}

More on that topic: http://pm2.keymetrics.io/docs/usage/watch-and-restart/

edited Jun 28 '16 at 08:33

answered Jun 28 '16 at 08:30

Rafal Wiliński

2,240
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where to put process.json? this is my directory http://prntscr.com/bm1bms – Vuong Tran Jun 28 '16 at 08:32
Next to your main server file/in project root folder. – Rafal Wiliński Jun 28 '16 at 08:33
What is the exact line: pm2 -ignore-watch ? please make it more detail – Vuong Tran Jun 28 '16 at 08:44
Got it follow this post: http://stackoverflow.com/questions/27882759/express-4-pm2-watch-not-working – Vuong Tran Jun 28 '16 at 09:27
the `ignore_watch` option works also with pm2 ecosystem files: https://pm2.keymetrics.io/docs/usage/watch-and-restart/ – Jean Paul Apr 12 '21 at 14:25

BigMan73 · Answer 2 · 2020-07-20T21:22:18.660

A simple explanation, from actual experience

create a json file in the root folder of the the expressjs application. It can have any name, but I used pm2-process.json for clarity

{
    "script": "bin/www",
    "watch": true,
    "ignore_watch": ["log"],
    "watch_options": {
        "followSymlinks": false
    },
    "name": "YOUR_PM2_PROCESS_NAME"
}

To start your pm2 service from terminal, in the root folder of the express application:

pm2 start pm2-process.json

That's it. Really simple. There are many other options but this is the bare functional minimum .

Fields explanation:

script - the script to run the express application
watch - a boolean flag to control if pm2 watches (or not) the folder
ignore_watch - if watch is on, then tell pm2 which folders to ignore watching (in other words, this is a watch monitor exclusion list)
name - the name of the pm2 process ('service'). Set it to your application name of choice.

The full documentation is here: http://pm2.keymetrics.io/docs/usage/application-declaration/#attributes-available

Note: I left the node_modules folder out of the ignore_watch array in the example above, because I want pm2 to restart the service after a git pull and npm i that causes a change in the node modules. However it easy to ignore node_modules or any other folder (e.g., temp, public, etc.) by editing the array values

score 0 · Answer 3 · answered Jul 05 '23 at 14:49

0

Please use --spa

for example

pm2 serve build 3001 --name "any-name" --spa

answered Jul 05 '23 at 14:49

whymanan

1

1

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Expressjs pm2 ignore watch public/images folder

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