動態跟蹤的JavaScript：jstrace

動態跟蹤的JavaScript，采用JavaScript開發。類似于dtrace, ktap等。為您提供深入了解你實時的NodeJS應用，在進程、機器或群集層面。動態跟蹤的目標是提供一組豐富的調試信息，能夠在生產中，幫助發現問題的根源。

特性：

• dynamic tracing :)
• local / remote execution support
• minimal overhead when idle
• flexible scripting capabilities
• probe name filtering
• pid, process title, and hostname filtering
• remote messaging for map/reduce style reporting
• multi-process support, inspect your cluster in realtime
• binds to 0.0.0.0:4322 (may need this for firewalls)
</ul>

var trace = require('jstrace');
var http = require('http');

var ids = 0;

var server = http.createServer(function(req, res){
  var id = ++ids;

  trace('request:start', { id: id });
  setTimeout(function(){

    res.end('hello world');
    trace('request:end', { id: id });
  }, Math.random() * 250 | 0);
});

server.listen(3000);




項目主頁：http://www.baiduhome.net/lib/view/home/1401074026589