Question

节点PhantomJs为75个以上的并发请求抛出错误，请求数量在这里有点无关紧要。此时只暴露了问题。我怀疑任何一个请求都是超时或底层套接字与nodeJs不能很好地协作。我试图查明问题并且肯定会感谢任何帮助。

错误日志：

phantom stdout:   :67 in onclose

phantom stdout: [WDS] Disconnected!


phantom stdout:   :67 in onclose

phantom stdout: TypeError: undefined is not an object (evaluating 'parent._jp.anxzqzn')

  http://localhost:9000/sockjs-node/592/4vgdvqkc/htmlfile?c=_jp.anxzqzn:8 in global code
TypeError: undefined is not an object (evaluating 'c.message')

  http://localhost:9000/sockjs-node/592/4vgdvqkc/htmlfile?c=_jp.anxzqzn:10 in p

phantom stdout: TypeError: undefined is not an object (evaluating 'c.message')

  http://localhost:9000/sockjs-node/592/4vgdvqkc/htmlfile?c=_jp.anxzqzn:10 in p
TypeError: undefined is not an object (evaluating 'c.message')

  http://localhost:9000/sockjs-node/592/4vgdvqkc/htmlfile?c=_jp.anxzqzn:10 in p

节点服务器： ^ 0.10.40 5.3.0稳定

尝试使用两个节点版本进行验证;它不是NodeJs问题

代码段：

page.open(decodedURL, function (status) {
                if (status !== "success") {
                    console.log("phantom app failed to respond");
                    response.statusCode = 400;
                    response.write('Unable to load url: ' + decodedURL);
                    response.end();
                    //Close page object as we're returning response
                    console.log("closing objects");
                    ph.exit()
                    //phantom.exit
                } else {
                    //Wait for all callback from the phantom app before rendering
                    console.log("Waiting for callback");
                    page.set('onCallback', function () {
                        //console.log("Callback name"+this.name);
                        console.log("received callback from app so rendering now");

                        renderImages();
                        /*else {
                         responseImages.push(page.renderBase64());
                         ph.exit()
                         }
                         */
                    });

                    // Otherwise wait for maxTimeout, unless invoked earlier by callback from app
                    //If we reach the max timeout we throw an error and just return
                    //This is because we don't want to return half loaded images back to the caller
                    //garbage collect page as well
                    var forceRenderTimeout = setTimeout(function () {
                        console.log("Reached the maximum timeout so returning 400");
                        response.statusCode = 400;
                        response.write('Unable to load url: ' + decodedURL);
                        response.end()
                        console.log("closing objects");
                        ph.exit()
                        //phantom.exit
                        //  page.close();
                    }, defaultOpts.maxTimeout);
                }
            });

PhantomJs：github.com/ariya/phantomjs PhantomJs_Node：github.com/sgentle/phantomjs-node

当前代码中使用的回调机制：phantomjs.org/api/webpage/handler/on-callback.html

Node PhantomJs为75个以上的并发请求抛出错误

0 个答案: