https://github.com/joyent/node/wiki/modules#wiki-logs 好多日志模块，都看花了眼，大家都用哪个记录日志呢？
Logging and dumping
ain — Brain-free syslog logging Caterpillar — Caterpillar is an awesome, simple, intuitive console logger for node.js. It supports grouping of messages, filtering log levels, colors, times, modules, custom formatters and custom transports. cfdump.js — a more visually inspiring way to dump your objects to a browser flume-rpc — A flume-compatible (RPC) logging source and sink gelf-node - gelf-node is a full implementation for sending messages in GELF (Graylog Extended Log Format) from node.js to Graylog hexy.js — hex pretty printing like xxd inspect — hierarchical object inspection displaying ancestry, properties, methods, and accessors in great detail. jog — JSON-based logger with multiple stores, namespacing, CLI and more log.js — light-weight logger that works with any writable stream, also supports a streaming parser for reading the log files generated log4js-node — a port of log4js framework for node.js logging — Super sexy color console logging. logly — A minimal logging utility to support verbose and debug modes with basic colors logule — A sexy portable logging utility using colors nlogger — Logging lib that can print also module names and line numbers, optionally in color node-logentries — A winston-compatible wrapper library for the logentries.com service node-logging — Simple colorized logging for Node.js with request logger Express middleware node-streamlogger — Extensively customizable logging, with support for rotation node-tick — v8.log processor NodeLog — Logging library for Node.js based on the java.util.logging library. nogg — Simple file/stdio logging for node.js spruce — configurable node.js logging module tracer — A powerful and customizable logging library for node.js. support color console with timestamp, line number, method name, file name and call stack. you can set transport to file, stream, database(ex: mongodb and clouddb, simpledb). keywords: log, logger, trace underscore.logger — Cross-browser and Node.js empowered logging that can be used as an Underscore mixin. Windows Event Log Js — native Node.js module to log messages to the Microsoft Windows EventLog Winston — A multi-transport async logging library for node.js PuperGrep - Real-time web view for your logs with hightlighting, grep and more.