For some days I have searched for a working solution to an error
Error: EMFILE, too many open files
It seems that many people have the same problem. The usual answer involves increasing the number of file descriptors. So, I’ve tried this:
sysctl -w kern.maxfiles=20480
The default value is 10240. This is a little strange in my eyes, because the number of files I’m handling in the directory is under 10240. Even stranger, I still receive the same error after I’ve increased the number of file descriptors.
Second question:
After a number of searches I found a work around for the “too many open files” problem:
var requestBatches = {};
function batchingReadFile(filename, callback) {
// First check to see if there is already a batch
if (requestBatches.hasOwnProperty(filename)) {
requestBatches[filename].push(callback);
return;
}
// Otherwise start a new one and make a real request
var batch = requestBatches[filename] = [callback];
FS.readFile(filename, onRealRead);
// Flush out the batch on complete
function onRealRead() {
delete requestBatches[filename];
for (var i = 0, l = batch.length; i < l; i++) {
batch[i].apply(null, arguments);
}
}
}
function printFile(file){
console.log(file);
}
dir = "/Users/xaver/Downloads/xaver/xxx/xxx/"
var files = fs.readdirSync(dir);
for (i in files){
filename = dir + files[i];
console.log(filename);
batchingReadFile(filename, printFile);
Unfortunately I still recieve the same error.
What is wrong with this code?