Unitech / Unitech/pm2

pm2 monit should not clear logs on navigation

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#4,923 2 comments 11 reactions 0 assignees View on GitHub

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S: Pending Release
Dominant language
JavaScript
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Description

What's going wrong?

No-one at Unitech making a statement about the uselessness of pm2 monit if it just clears the logs on navigation, making it pointless for investigations

How could we reproduce this issue?

  1. pm2 monit
  2. navigate between logs

Supporting information

#4565 for more details, OP gave up on preventing a stale

$ pm2 report
--- PM2 report ----------------------------------------------------------------
Date                 : Tue Nov 24 2020 17:25:46 GMT+0100 (Central European Standard Time)
===============================================================================
--- Daemon -------------------------------------------------
pm2d version         : 4.5.0
node version         : 10.20.1
node path            : not found
argv                 : /usr/local/bin/node,/usr/local/lib/node_modules/pm2/lib/Daemon.js
argv0                : node
user                 : jondek
uid                  : 1000
gid                  : 1000
uptime               : 11min
===============================================================================
--- CLI ----------------------------------------------------
local pm2            : 4.5.0
node version         : 10.20.1
node path            : not found
argv                 : /usr/local/bin/node,/usr/local/bin/pm2,report
argv0                : node
user                 : jondek
uid                  : 1000
gid                  : 1000
===============================================================================
--- System info --------------------------------------------
arch                 : x64
platform             : linux
type                 : Linux
cpus                 : AMD Ryzen 9 3900X 12-Core Processor
cpus nb              : 12
freemem              : 777572352
totalmem             : 16789843968
home                 : /home/jondek
===============================================================================
--- PM2 list -----------------------------------------------
┌─────┬────────────────────────────────┬─────────────┬─────────┬─────────┬──────────┬────────┬──────┬───────────┬──────────┬──────────┬──────────┬──────────┐
│ id  │ name                           │ namespace   │ version │ mode    │ pid      │ uptime │ ↺    │ status    │ cpu      │ mem      │ user     │ watching │
├─────┼────────────────────────────────┼─────────────┼─────────┼─────────┼──────────┼────────┼──────┼───────────┼──────────┼──────────┼──────────┼──────────┤
│ 6   │ mdt-app-client-seed            │ default     │ 0.0.1   │ fork    │ 81917    │ 11m    │ 0    │ online    │ 0%       │ 37.5mb   │ jondek   │ disabled │
│ 4   │ mdt-app-client-webapp          │ default     │ 0.0.1   │ fork    │ 81744    │ 11m    │ 0    │ online    │ 0%       │ 36.6mb   │ jondek   │ disabled │
│ 5   │ mdt-app-client-webapp:proxy    │ default     │ 0.0.1   │ fork    │ 81840    │ 11m    │ 0    │ online    │ 0%       │ 37.0mb   │ jondek   │ disabled │
│ 1   │ mdt-app-service-api            │ default     │ 0.0.1   │ fork    │ 81452    │ 11m    │ 0    │ online    │ 0%       │ 37.5mb   │ jondek   │ disabled │
│ 2   │ mdt-app-service-api-reports    │ default     │ 0.0.1   │ fork    │ 81506    │ 11m    │ 0    │ online    │ 0%       │ 37.0mb   │ jondek   │ disabled │
│ 3   │ mdt-app-service-session        │ default     │ 0.0.1   │ fork    │ 81650    │ 11m    │ 0    │ online    │ 0%       │ 36.1mb   │ jondek   │ disabled │
│ 0   │ mongo                          │ default     │ 0.0.1   │ fork    │ 81401    │ 11m    │ 0    │ online    │ 0.5%     │ 36.2mb   │ jondek   │ disabled │
└─────┴────────────────────────────────┴─────────────┴─────────┴─────────┴──────────┴────────┴──────┴───────────┴──────────┴──────────┴──────────┴──────────┘
===============================================================================
--- Daemon logs --------------------------------------------
/home/jondek/.pm2/pm2.log last 20 lines:
PM2        | 2020-11-24T17:14:27: PM2 log: Application log path : /home/jondek/.pm2/logs
PM2        | 2020-11-24T17:14:27: PM2 log: Worker Interval      : 30000
PM2        | 2020-11-24T17:14:27: PM2 log: Process dump file    : /home/jondek/.pm2/dump.pm2
PM2        | 2020-11-24T17:14:27: PM2 log: Concurrent actions   : 2
PM2        | 2020-11-24T17:14:27: PM2 log: SIGTERM timeout      : 1600
PM2        | 2020-11-24T17:14:27: PM2 log: ===============================================================================
PM2        | 2020-11-24T17:14:37: PM2 log: App [mongo:0] starting in -fork mode-
PM2        | 2020-11-24T17:14:37: PM2 log: App [mongo:0] online
PM2        | 2020-11-24T17:14:38: PM2 log: App [mdt-app-service-api:1] starting in -fork mode-
PM2        | 2020-11-24T17:14:38: PM2 log: App [mdt-app-service-api:1] online
PM2        | 2020-11-24T17:14:38: PM2 log: App [mdt-app-service-api-reports:2] starting in -fork mode-
PM2        | 2020-11-24T17:14:38: PM2 log: App [mdt-app-service-api-reports:2] online
PM2        | 2020-11-24T17:14:38: PM2 log: App [mdt-app-service-session:3] starting in -fork mode-
PM2        | 2020-11-24T17:14:38: PM2 log: App [mdt-app-service-session:3] online
PM2        | 2020-11-24T17:14:38: PM2 log: App [mdt-app-client-webapp:4] starting in -fork mode-
PM2        | 2020-11-24T17:14:38: PM2 log: App [mdt-app-client-webapp:4] online
PM2        | 2020-11-24T17:14:39: PM2 log: App [mdt-app-client-webapp:proxy:5] starting in -fork mode-
PM2        | 2020-11-24T17:14:39: PM2 log: App [mdt-app-client-webapp:proxy:5] online
PM2        | 2020-11-24T17:14:39: PM2 log: App [mdt-app-client-seed:6] starting in -fork mode-
PM2        | 2020-11-24T17:14:39: PM2 log: App [mdt-app-client-seed:6] online

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the behavior with pm2 monit, then trace the monitor's log handling when navigating between logs. The issue references #4565 for additional context. Done means navigation no longer clears the logs needed for investigation.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript, node.js
Domain
cli, observability
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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