use test as sync function

[mnlbox]

Hi @chill117 , I try using this library for check some proxies but after some check it's return Maximum number of open connections reached. message. How we can use test function as sync function. Can you help me?

[chill117]

When you test a single proxy, the most number of connections at once would be 6 or so. Are you testing all of your proxies in parallel?

[mnlbox]

No I use a foreach for check a proxy list. How we can increase connection number or check this in parallel?

[chill117]

Are you doing something like this?

// !! Do not use this code !!
for (var proxy in proxies) {
    ProxyVerifier.testAll(proxy, function(error, result) {
    });
}

Because this would lead to the issue you're having. The problem with the above code is that the loop starts the testing for each proxy without waiting for the previous tests to finish. So you will end up with ~6 simultaneously open HTTP requests per proxy.

To run the tests in series (instead of parallel), try something like this:

var async = require('async');

async.mapSeries(proxies, function(proxy, next) {
    ProxyVerifier.testAll(proxy, next);
}, function(error, results) {
    // This callback executes after all the proxies have been checked.
});