nodereport
https://npmjs.org/node-report
This package is obsolete, please useDelivers a human-readable diagnostic summary, written to file.
The report is intended for development, test and production use, to capture and preserve information for problem determination. It includes JavaScript and native stack traces, heap statistics, platform information and resource usage etc. With the report enabled, reports can be triggered on unhandled exceptions, fatal errors, signals and calls to a JavaScript API.
Supports Node.js v4, v6 and v7 on Linux, MacOS, Windows and AIX.
Usage
npm install nodereport
This will allow a NodeReport to be triggered via an API call from a JavaScript application.
var nodereport = ;nodereport;
Content of the NodeReport consists of a header section containing the event type, date, time, PID and Node version, sections containing JavaScript and native stack traces, a section containing V8 heap information, a section containing libuv handle information and an OS platform information section showing CPU and memory usage and system limits. An example NodeReport can be triggered using the Node.js REPL:
$ node
> nodereport = require('nodereport')
> nodereport.triggerReport()
Writing Node.js report to file: NodeReport.20161020.091102.8480.001.txt
Node.js report completed
>
When a NodeReport is triggered, start and end messages are issued to stderr
and the filename of the report is returned to the caller. The default filename
includes the date, time, PID and a sequence number. Alternatively, a filename
can be specified as a parameter on the triggerReport()
call.
nodereport;
A NodeReport can also be triggered automatically on unhandled exceptions, fatal error events (for example out of memory errors), and signals (Linux/MacOS only). Triggering on these events can be enabled using the following API call:
nodereport;
Configuration
Additional configuration is available using the following APIs:
nodereport;nodereport;nodereport;nodereport;nodereport;
Configuration on module Initialization is also available via environment variables:
export NODEREPORT_EVENTS=exception+fatalerror+signal+apicallexport NODEREPORT_SIGNAL=SIGUSR2|SIGQUITexport NODEREPORT_FILENAME=stdout|stderr|<filename>export NODEREPORT_DIRECTORY=<full path>export NODEREPORT_COREDUMP=yes|noexport NODEREPORT_VERBOSE=yes|no
Examples
To see examples of NodeReports generated from these events you can run the demonstration applications provided in the nodereport github repository. These are Node.js applications which will prompt you to trigger the required event.
api.js
- NodeReport triggered by JavaScript API call.exception.js
- NodeReport triggered by unhandled exception.fatalerror.js
- NodeReport triggered by fatal error on JavaScript heap out of memory.loop.js
- looping application, NodeReport triggered using kill-USR2 <pid>
.