When disk is full, pm2 will restart continuously, causing service exceptions.

Open

#5,008 opened on Mar 8, 2021 1 comment 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Assessment

Difficulty: 4/5
Estimated time: 3-5 days
Newbie friendliness: 32/100

Issue type: Bug
Clarity: Mostly clear
Activity status: Stale
Tech stack: javascript, nodejs
Domain: cli, devops

Research direction

Reproduce the issue with the mentioned http.js example and the pm2 start command using cluster mode, merged output logs, and a full disk. Trace the cluster startup and log-writing paths involved in the repeated restarts. Done means the full-disk or permission-denied condition no longer causes continuous restarts and excessive CPU usage.

Written by the indexing model from the issue text.

Description

What's going wrong?

In cluster mode , when disk is full or permission denied to log file, pm2 will restart continuously, causing service exceptions.

How could we reproduce this issue?

1.make a small ram disk, for example 5M

diskutil erasevolume HFS+ test `hdiutil attach -nomount ram://10000`

2.write a simple nodejs project in this disk, for example http.js

var http = require('http');

var server = http.createServer(function(req, res) {
  res.writeHead(200);
  console.log('long text............')
  res.end('hey');
}).listen(process.env.PORT || 8089, '0.0.0.0', function() {
  console.log('App listening on port %d', server.address().port);
});

3.fill the disk with small files

4.then run pm2 start

pm2 start http.js  -i 8 -o out.log -e err.log --merge-logs

pm2 will restart continuously，and cpu load is very high

Supporting information

$ pm2 report

--- PM2 report ----------------------------------------------------------------
Date                 : Mon Mar 08 2021 19:53:45 GMT+0800 (GMT+08:00)
===============================================================================
--- Daemon -------------------------------------------------
pm2d version         : 4.5.5
node version         : 10.17.0
node path            : /usr/local/bin/pm2
argv                 : /usr/local/bin/node,/Users/yuxizhe/pm2/lib/Daemon.js
argv0                : node
user                 : yuxizhe
uid                  : 501
gid                  : 20
uptime               : 0min
===============================================================================
--- CLI ----------------------------------------------------
local pm2            : 4.5.5
node version         : 10.17.0
node path            : /usr/local/bin/pm2
argv                 : /usr/local/bin/node,/usr/local/bin/pm2,report
argv0                : node
user                 : yuxizhe
uid                  : 501
gid                  : 20
===============================================================================
--- System info --------------------------------------------
arch                 : x64
platform             : darwin
type                 : Darwin
cpus                 : Intel(R) Core(TM) i5-7360U CPU @ 2.30GHz
cpus nb              : 4
freemem              : 1590407168
totalmem             : 17179869184
home                 : /Users/yuxizhe
===============================================================================
--- PM2 list -----------------------------------------------
┌────┬────────────────────┬──────────┬──────┬───────────┬──────────┬──────────┐
│ id │ name               │ mode     │ ↺    │ status    │ cpu      │ memory   │
├────┼────────────────────┼──────────┼──────┼───────────┼──────────┼──────────┤
│ 1  │ http               │ cluster  │ 19   │ stopped   │ 0%       │ 0b       │
│ 2  │ http               │ cluster  │ 17   │ errored   │ 0%       │ 0b       │
│ 3  │ http               │ cluster  │ 17   │ errored   │ 0%       │ 0b       │
│ 4  │ http               │ cluster  │ 18   │ online    │ 25%      │ 31.6mb   │
│ 5  │ http               │ cluster  │ 17   │ errored   │ 0%       │ 0b       │
│ 6  │ http               │ cluster  │ 17   │ online    │ 24%      │ 31.5mb   │
│ 7  │ http               │ cluster  │ 17   │ online    │ 16%      │ 27.5mb   │
│ 8  │ http               │ cluster  │ 17   │ online    │ 18%      │ 28.6mb   │
└────┴────────────────────┴──────────┴──────┴───────────┴──────────┴──────────┘
Module
┌────┬────────────────────┬──────────┬──────────┬──────────┐
│ id │ name               │ status   │ cpu      │ mem      │
├────┼────────────────────┼──────────┼──────────┼──────────┤
│ 0  │ pm2-logrotate      │ online   │ 0.3%     │ 37.2mb   │
└────┴────────────────────┴──────────┴──────────┴──────────┘
Current process list running is not in sync with saved list. Type 'pm2 save' to synchronize'
===============================================================================
--- Daemon logs --------------------------------------------
/Users/yuxizhe/.pm2/pm2.log last 20 lines:
PM2        |  2: 0x10003c063 node::AddEnvironmentCleanupHook(v8::Isolate*, void (*)(void*), void*) [/usr/local/bin/node]
PM2        |  3: 0x10010c126 node::inspector::(anonymous namespace)::AddCommandLineAPI(v8::FunctionCallbackInfo<v8::Value> const&) [/usr/local/bin/node]
PM2        |  4: 0x10024417f v8::internal::FunctionCallbackArguments::Call(v8::internal::CallHandlerInfo*) [/usr/local/bin/node]
PM2        | node /Volumes/test/http.js[80572]: ../src/inspector_js_api.cc:172:void node::inspector::(anonymous namespace)::InspectorConsoleCall(const FunctionCallbackInfo<v8::Value> &): Assertion `!inspector_method.As<Function>()->Call(context, info.Holder(), call_args.size(), call_args.data()).IsEmpty()' failed.
PM2        |  1: 0x10003d041 node::Abort() [/usr/local/bin/node]
PM2        |  2: 0x10003c063 node::AddEnvironmentCleanupHook(v8::Isolate*, void (*)(void*), void*) [/usr/local/bin/node]
PM2        |  3: 0x10010c126 node::inspector::(anonymous namespace)::AddCommandLineAPI(v8::FunctionCallbackInfo<v8::Value> const&) [/usr/local/bin/node]
PM2        |  4: 0x10024417f v8::internal::FunctionCallbackArguments::Call(v8::internal::CallHandlerInfo*) [/usr/local/bin/node]
PM2        |  5: 0x1002436c1 v8::internal::MaybeHandle<v8::internal::Object> v8::internal::(anonymous namespace)::HandleApiCallHelper<false>(v8::internal::Isolate*, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::FunctionTemplateInfo>, v8::internal::Handle<v8::internal::Object>, v8::internal::BuiltinArguments) [/usr/local/bin/node]
PM2        |  6: 0x100242d60 v8::internal::Builtin_Impl_HandleApiCall(v8::internal::BuiltinArguments, v8::internal::Isolate*) [/usr/local/bin/node]
PM2        |  7: 0x199b520dbe3d
PM2        | 2021-03-08T19:53:45: PM2 log: App name:http id:5 disconnected
PM2        | 2021-03-08T19:53:45: PM2 log: App [http:5] exited with code [0] via signal [SIGABRT]
PM2        | 2021-03-08T19:53:45: PM2 log: Script /Volumes/test/http.js had too many unstable restarts (16). Stopped. "errored"
PM2        |  5: 0x1002436c1 v8::internal::MaybeHandle<v8::internal::Object> v8::internal::(anonymous namespace)::HandleApiCallHelper<false>(v8::internal::Isolate*, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::FunctionTemplateInfo>, v8::internal::Handle<v8::internal::Object>, v8::internal::BuiltinArguments) [/usr/local/bin/node]
PM2        |  6: 0x100242d60 v8::internal::Builtin_Impl_HandleApiCall(v8::internal::BuiltinArguments, v8::internal::Isolate*) [/usr/local/bin/node]
PM2        |  7: 0x35e1bbedbe3d
PM2        | 2021-03-08T19:53:45: PM2 log: App name:http id:1 disconnected
PM2        | 2021-03-08T19:53:45: PM2 log: App [http:1] exited with code [0] via signal [SIGABRT]
PM2        | 2021-03-08T19:53:45: PM2 log: App [http:1] starting in -cluster mode-

--- PM2 report ----------------------------------------------------------------
Date                 : Mon Mar 08 2021 20:42:29 GMT+0800 (GMT+08:00)
===============================================================================
--- Daemon -------------------------------------------------
pm2d version         : 4.5.5
node version         : 10.17.0
node path            : /usr/local/bin/pm2
argv                 : /usr/local/bin/node,/Users/yuxizhe/pm2/lib/Daemon.js
argv0                : node
user                 : yuxizhe
uid                  : 501
gid                  : 20
uptime               : 0min
===============================================================================
--- CLI ----------------------------------------------------
local pm2            : 4.5.5
node version         : 10.17.0
node path            : /usr/local/bin/pm2
argv                 : /usr/local/bin/node,/usr/local/bin/pm2,report
argv0                : node
user                 : yuxizhe
uid                  : 501
gid                  : 20
===============================================================================
--- System info --------------------------------------------
arch                 : x64
platform             : darwin
type                 : Darwin
cpus                 : Intel(R) Core(TM) i5-7360U CPU @ 2.30GHz
cpus nb              : 4
freemem              : 312184832
totalmem             : 17179869184
home                 : /Users/yuxizhe
===============================================================================
--- PM2 list -----------------------------------------------
┌────┬────────────────────┬──────────┬──────┬───────────┬──────────┬──────────┐
│ id │ name               │ mode     │ ↺    │ status    │ cpu      │ memory   │
├────┼────────────────────┼──────────┼──────┼───────────┼──────────┼──────────┤
│ 1  │ http               │ cluster  │ 9    │ online    │ 0%       │ 29.3mb   │
│ 2  │ http               │ cluster  │ 9    │ online    │ 0%       │ 24.4mb   │
│ 3  │ http               │ cluster  │ 8    │ online    │ 0%       │ 32.1mb   │
│ 4  │ http               │ cluster  │ 8    │ online    │ 0%       │ 29.4mb   │
│ 5  │ http               │ cluster  │ 8    │ online    │ 0%       │ 29.1mb   │
│ 6  │ http               │ cluster  │ 8    │ online    │ 0%       │ 24.4mb   │
│ 7  │ http               │ cluster  │ 7    │ online    │ 34%      │ 37.2mb   │
│ 8  │ http               │ cluster  │ 7    │ online    │ 0%       │ 30.5mb   │
└────┴────────────────────┴──────────┴──────┴───────────┴──────────┴──────────┘
Module
┌────┬────────────────────┬──────────┬──────────┬──────────┐
│ id │ name               │ status   │ cpu      │ mem      │
├────┼────────────────────┼──────────┼──────────┼──────────┤
│ 0  │ pm2-logrotate      │ online   │ 0.1%     │ 42.6mb   │
└────┴────────────────────┴──────────┴──────────┴──────────┘
Current process list running is not in sync with saved list. Type 'pm2 save' to synchronize'
===============================================================================
--- Daemon logs --------------------------------------------
/Users/yuxizhe/.pm2/pm2.log last 20 lines:
PM2        |  6: 0x100242d60 v8::internal::Builtin_Impl_HandleApiCall(v8::internal::BuiltinArguments, v8::internal::Isolate*) [/usr/local/bin/node]
PM2        |  7: 0x2066c94dbe3d
PM2        | 2021-03-08T20:42:29: PM2 log: App name:http id:6 disconnected
PM2        | 2021-03-08T20:42:29: PM2 log: App [http:6] exited with code [0] via signal [SIGABRT]
PM2        | 2021-03-08T20:42:29: PM2 log: App [http:6] starting in -cluster mode-
PM2        |  6: 0x100242d60 v8::internal::Builtin_Impl_HandleApiCall(v8::internal::BuiltinArguments, v8::internal::Isolate*) [/usr/local/bin/node]
PM2        |  7: 0x2cd53f1dbe3d
PM2        | 2021-03-08T20:42:29: PM2 log: App name:http id:2 disconnected
PM2        | 2021-03-08T20:42:29: PM2 log: App [http:2] exited with code [0] via signal [SIGABRT]
PM2        | 2021-03-08T20:42:29: PM2 log: App [http:2] starting in -cluster mode-
PM2        | node /Volumes/test/http.js[84705]: ../src/inspector_js_api.cc:172:void node::inspector::(anonymous namespace)::InspectorConsoleCall(const FunctionCallbackInfo<v8::Value> &): Assertion `!inspector_method.As<Function>()->Call(context, info.Holder(), call_args.size(), call_args.data()).IsEmpty()' failed.
PM2        |  1: 0x10003d041 node::Abort() [/usr/local/bin/node]
PM2        |  2: 0x10003c063 node::AddEnvironmentCleanupHook(v8::Isolate*, void (*)(void*), void*) [/usr/local/bin/node]
PM2        |  3: 0x10010c126 node::inspector::(anonymous namespace)::AddCommandLineAPI(v8::FunctionCallbackInfo<v8::Value> const&) [/usr/local/bin/node]
PM2        |  4: 0x10024417f v8::internal::FunctionCallbackArguments::Call(v8::internal::CallHandlerInfo*) [/usr/local/bin/node]
PM2        | 2021-03-08T20:42:29: PM2 log: App [http:6] online
PM2        | 2021-03-08T20:42:29: PM2 log: App [http:2] online
PM2        |  5: 0x1002436c1 v8::internal::MaybeHandle<v8::internal::Object> v8::internal::(anonymous namespace)::HandleApiCallHelper<false>(v8::internal::Isolate*, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::FunctionTemplateInfo>, v8::internal::Handle<v8::internal::Object>, v8::internal::BuiltinArguments) [/usr/local/bin/node]
PM2        |  6: 0x100242d60 v8::internal::Builtin_Impl_HandleApiCall(v8::internal::BuiltinArguments, v8::internal::Isolate*) [/usr/local/bin/node]
PM2        |  7: 0x2754cb4dbe3d

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