log_date_format does not add timestamps to the error log

[adamhl8]

I have my ecosystem.config.js file set up like this:

module.exports = {
  apps : [{
    name: 'app',
    script: 'app.js',
    instances: 1,
    autorestart: true,
    watch: false,
    log_date_format: "YYYY-MM-DD HH:mm:ss",
    error_file: "logs/errors.log",
    out_file: "logs/app.log"
  }]
};

I have timestamps in my out_file log, but none in my error_file log.

I'm using verison 4.1.2.

[adamhl8]

Turns out things like unhandled promise rejections won't be timestamped, but as long as you actually catch errors the timestamp works properly.

[adamhl8]

I closed this too quickly. Should have done more testing, sorry.

It looks like only caught errors are timestamped, any other error isn't. Is that intended?

[Unitech]

Can you send me a sample code so I try it out

[adamhl8]

For example:

var promise = new Promise(function(resolve, reject) {
  if (false) {
  }
  else {
    reject(Error("It broke"));
  }
});

promise.then().catch(console.error);

In my error log I'll get an entry with the correct timestamp: 2019-11-25 06:25:13: Error: It broke

If I remove the .catch, an error is logged with no timestamp: You have triggered an unhandledRejection, you may have forgotten to catch a Promise rejection: Error: It broke

This doesn't just apply to unhandled promise rejections though. If you have something like let foo = bar where bar doesn't exist it will throw an error without a timestamp. In other words, the only time I've seen errors have a timestamp is when I catch rejected promises.

[MumiaIrrequieta]

I'm having the same issue with "exec_mode: cluster" on ecosystem.config.js. If I disable cluster mode it works.

PM2 version 4.1.2

[adamhl8]

Yep, after setting exec_mode to "fork" the logging/timestamps work as expected. Thanks.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[AlisaLiCn]

I'm having the same issue, when I use "exec_mode: cluster", my error_log files won't include timestamps, but when I change to fork mode, timestamps appear.

My PM2 version is v4.5.6

[dazjean]

I haveing the same issue, when i setting exec_mode as cluster. my PM2 version is v5.1.2

[Vanav]

I confirm this issue. Sometimes there is timestamp in error log, but most of time there is no timestamp for repeated errors during multiple days. ecosystem.config.cjs:

module.exports = {
  apps: [{
    name: 'games-admin',
    exec_mode: 'cluster',
    instances: '1',
    cwd: '/srv/games-admin/api',
    script: 'dist/main.js',
    args: '--name games-admin --time',
    interpreter_args: '',
    merge_logs: true,
    log_date_format: 'YYYY-MM-DD HH:mm:ss Z'
  }]
}

~/.pm2/logs/games-admin-error.log:

You have triggered an unhandledRejection, you may have forgotten to catch a Promise rejection:
PrismaClientValidationError: 
Invalid `this.db.tgChatMessage.create()` invocation in ...
...
You have triggered an unhandledRejection, you may have forgotten to catch a Promise rejection:
PrismaClientValidationError: 
Invalid `this.db.tgChatMessage.create()` invocation in ...
...
You have triggered an unhandledRejection, you may have forgotten to catch a Promise rejection:
PrismaClientValidationError: 
Invalid `this.db.tgChatMessage.create()` invocation in ...
...
2024-09-27 20:15:33 +03:00: error: [polling_error] {"code":"EFATAL","message":"EFATAL: Error: read ETIMEDOUT"}