PM2 stops watching after stop/start/restart [maybe bug?]

[damianobarbati]

Please close this if duplicated: I tried to search but I did not find quite the same question.

I noticed the following.

1. in my pm2.config.js I specify a watch array

module.exports = {
    name: 'tav-proxy',
    script: 'src/proxy.js',
    exec_mode: 'cluster',
    instances: isDevelopment ? 1 : 'max',
    node_args: '--harmony --trace-deprecation --experimental-modules --max_old_space_size=512',
    args: '--color',
    max_memory_restart: availableMem + 'M',
    max_restarts: 3,
    restart_delay: 3000,
    min_uptime: 3000,
    log_file: 'logs/proxy.log',
    log_date_format : 'YYYY-MM-DDTHH:mm:ssZ',
    watch: ['package.json', 'index.js', 'config/', 'src/', 'api/'],
    env_development: {
        NODE_ENV: 'development',
    },
    env_staging: {
        NODE_ENV: 'staging',
    },
    env_production: {
        NODE_ENV: 'production',
    }
};

2. I start my process NODE_ENV=development HTTP_PORT=2999 HTTPS_PORT=3000 SOCKETS=localhost:3001 pm2 startOrRestart ./config/pm2-proxy.config.js --env development and I see the watching enabled from pm2 list

3. I stop the process with pm2 stop <processname>

4. I restart the process with pm2 start <processname>

5. I see the watching disabled from pm2 list

PM2 report:

===============================================================================
--- PM2 REPORT (Fri Jun 08 2018 11:31:10 GMT+0200 (Central European Summer Time)) 
===============================================================================
--- Daemon -------------------------------------------------
pm2d version         : 2.10.4
node version         : 10.4.0
node path            : /usr/local/bin/pm2
argv                 : /usr/local/Cellar/node/10.4.0/bin/node,/usr/local/lib/node_modules/pm2/lib/Daemon.js
argv0                : node
user                 : damiano
uid                  : 502
gid                  : 20
uptime               : 117min
===============================================================================
--- CLI ----------------------------------------------------
local pm2            : 2.10.4
node version         : 10.4.0
node path            : /usr/local/bin/pm2
argv                 : /usr/local/Cellar/node/10.4.0/bin/node,/usr/local/bin/pm2,report
argv0                : node
user                 : damiano
uid                  : 502
gid                  : 20
===============================================================================
--- System info --------------------------------------------
arch                 : x64
platform             : darwin
type                 : Darwin
cpus                 : Intel(R) Core(TM) i5-7500 CPU @ 3.40GHz
cpus nb              : 4
freemem              : 716713984
totalmem             : 17179869184
home                 : /Users/damiano
===============================================================================
--- PM2 list -----------------------------------------------
┌─────────────────┬────┬─────────┬───────┬────────┬─────────┬────────┬─────┬───────────┬─────────┬──────────┐
│ App name        │ id │ mode    │ pid   │ status │ restart │ uptime │ cpu │ mem       │ user    │ watching │
├─────────────────┼────┼─────────┼───────┼────────┼─────────┼────────┼─────┼───────────┼─────────┼──────────┤
│ tav-proxy       │ 0  │ cluster │ 42920 │ online │ 4       │ 2m     │ 0%  │ 29.5 MB   │ damiano │ enabled  │
│ tav-socket-3001 │ 1  │ cluster │ 42856 │ online │ 2       │ 2m     │ 0%  │ 27.9 MB   │ damiano │ disabled │
└─────────────────┴────┴─────────┴───────┴────────┴─────────┴────────┴─────┴───────────┴─────────┴──────────┘
===============================================================================
--- Daemon logs --------------------------------------------
/Users/damiano/.pm2/pm2.log last 20 lines:
PM2        | [2018-06-08 11:28:21] PM2 log: pid=42790 msg=process killed
PM2        | [2018-06-08 11:28:21] PM2 error: Change detected on path logs/socket-1.log for app tav-proxy - restarting
PM2        | [2018-06-08 11:28:21] PM2 log: Stopping app:tav-proxy id:0
PM2        | [2018-06-08 11:28:21] PM2 log: App name:tav-proxy id:0 disconnected
PM2        | [2018-06-08 11:28:21] PM2 log: App [tav-proxy] with id [0] and pid [42768], exited with code [0] via signal [SIGINT]
PM2        | [2018-06-08 11:28:21] PM2 log: pid=42768 msg=process killed
PM2        | [2018-06-08 11:28:21] PM2 log: Starting execution sequence in -cluster mode- for app name:tav-proxy id:0
PM2        | [2018-06-08 11:28:21] PM2 log: App name:tav-proxy id:0 online
PM2        | (node:42833) ExperimentalWarning: The ESM module loader is experimental.
PM2        | [2018-06-08 11:28:25] PM2 log: Starting execution sequence in -cluster mode- for app name:tav-socket-3001 id:1
PM2        | [2018-06-08 11:28:25] PM2 log: App name:tav-socket-3001 id:1 online
PM2        | (node:42856) ExperimentalWarning: The ESM module loader is experimental.
PM2        | [2018-06-08 11:28:36] PM2 error: Change detected on path package.json for app tav-proxy - restarting
PM2        | [2018-06-08 11:28:36] PM2 log: Stopping app:tav-proxy id:0
PM2        | [2018-06-08 11:28:36] PM2 log: App name:tav-proxy id:0 disconnected
PM2        | [2018-06-08 11:28:36] PM2 log: App [tav-proxy] with id [0] and pid [42833], exited with code [0] via signal [SIGINT]
PM2        | [2018-06-08 11:28:36] PM2 log: pid=42833 msg=process killed
PM2        | [2018-06-08 11:28:36] PM2 log: Starting execution sequence in -cluster mode- for app name:tav-proxy id:0
PM2        | [2018-06-08 11:28:36] PM2 log: App name:tav-proxy id:0 online
PM2        | (node:42920) ExperimentalWarning: The ESM module loader is experimental.

Please copy/paste the above report in your issue on https://github.com/Unitech/pm2/issues