willcode2surf / couchdb-log-parse

A node program for parsing couchdb log files

couchdb-log-parse

A program for parsing CouchDB logs

Usage

var LogParse = require('couchdb-log-parse')
var parser = new LogParse()

fs.createReadStream('couchdb.log').pipe(parser)

parser.on('data', function (c) {
  // this is the raw data, don't know why you need this, but whatever
})

parser.on('message', function (message) {
  // this is probably what you want.
  // it's the parsed object with informative fields
})

Fields

The parsed messages all have these fields:

• date The date that the log was posted
• level Usually one of info, warn, or error
• pid Not a real pid. Some kind of silly erlang goober.
• type Either 'http', 'erl', or 'misc'

Depending on the type they may have the following fields as well:

http

• ip The requesting IP. (If you're behind a proxy or load balancer, then it's not super interesting.)
• method Something like GET, POST, PUT, etc.
• url The url requested
• statusCode The response status code.

erl

• message Whatever comes before the dump. Sometimes blank.
• dump The dumped erlang object. (If someone wants to write a parser for the erlang objdump notation, that'd be rad.)

misc

• message Whatever it was that couldn't be parsed.