NGiNX Http Push Module - broadcast behaves random - php

Question

The symptoms: I have the "push_listener_concurrency" set to "broadcast" but only several (random amount) of subscribers get the message. Was anybody dealing with this type of problem? The test cases are pretty straight-forward I 'POST' to a '/publisher?cid=test' channel and 'GET' from a '/listener?cid=test' everything seems to be working when there's only one client per channel...

Answer 1

Just in case somebody will face the same problem.
There were a problem with headers. To listen the nginx http push module correctly with jQuery you should use a listener that processes the headers correctly here is my code:
function Listener(url, successCallback, failureCallback) {
var scope = this;
var etag = 0, lastModified = 0;
var launched = false;
var failure = false;
this.successTimeout = 0;
this.failureTimeout = 5000;
var getTimeout = function () {
return failure ? this.failureTimeout : this.successTimeout;
};
var listen = function () {
$.ajax(scope.ajaxOptions);
}
var beforeSend = function (jqXHR) {
jqXHR.setRequestHeader("If-None-Match", etag);
jqXHR.setRequestHeader("If-Modified-Since", lastModified);
};
var complete = function (jqXHR) {
var timeout = getTimeout();
etag = jqXHR.getResponseHeader('Etag');
lastModified = jqXHR.getResponseHeader('Last-Modified');
var timeout = jqXHR.statusText == 'success' ? scope.successTimeout : scope.failureTimeout;
if (timeout > 0) {
setTimeout(listen, timeout);
} else {
listen();
}
};
this.ajaxOptions = {
url : url,
type : 'GET',
async : true,
error : failureCallback,
success : successCallback,
dataType : 'json',
complete : complete,
beforeSend : beforeSend,
timeout: 1000 * 60 * 60 * 24
};
this.start = function (timeout) {
if (!launched) {
if (typeof(timeout) == 'undefined' || timeout == 0) {
listen();
} else {
setTimeout(listen, timeout);
}
launched = true;
}
};
}