stdout.txt

[root@headnode (bh1-kvm7:0)]# cat foo.js
var fs = require('fs');
fs.watch("/var/tmp/follow.log", {persistent: true}, function (event, filename) {
  console.log("EVENT", event, filename);
});
[root@headnode (bh1-kvm7:0)]# ./build/node/bin/node --version
v0.6.19
[root@headnode (bh1-kvm7:0)]# uname -a
SunOS headnode 5.11 joyent_20120723T091636Z i86pc i386 i86pc


[root@headnode (bh1-kvm7:0)]# ./build/node/bin/node foo.js > foo.log


# Then in another terminal I ran:
[root@headnode (bh1-kvm7:0) /var/tmp]# echo foo >> follow.log


# ... then I ^C'd the "foo.js" run as fast as I could and:
[root@headnode (bh1-kvm7:0)]# wc -l foo.log
   41468 foo.log
[root@headnode (bh1-kvm7:0)]# cat foo.log |uniq
EVENT change null


IOW, `fs.watch` is in an infinite loop.