Alexa AWS错误:任务在3.00秒后超时

时间:2018-06-13 11:44:15

标签: node.js request aws-lambda cheerio alexa-skill

我试图写一个使用request.js&的Alexa技能。 cheerio.js做一些网络抓取数据。

当我在本地运行它时工作正常,正如预期的那样但在AWS lambda实例上我不断收到超时错误,因为它需要超过3秒才能完成运行。错误日志是这样的:

    START RequestId: 57f84024-6ef5-11e8-b49f-37c904d87c93 Version: $LATEST
2018-06-13T10:34:26.850Z    57f84024-6ef5-11e8-b49f-37c904d87c93    NEW SESSION
2018-06-13T10:34:26.851Z    57f84024-6ef5-11e8-b49f-37c904d87c93    INTENT REQUEST
2018-06-13T10:34:26.851Z    57f84024-6ef5-11e8-b49f-37c904d87c93    Sid started
2018-06-13T10:34:26.851Z    57f84024-6ef5-11e8-b49f-37c904d87c93    INTENT FOR SID HAS STARTED
2018-06-13T10:34:26.851Z    57f84024-6ef5-11e8-b49f-37c904d87c93    https://en.wikipedia.org/wiki/Chloroform
2018-06-13T10:34:26.950Z    57f84024-6ef5-11e8-b49f-37c904d87c93    SESSION END REQUEST
2018-06-13T10:34:27.731Z    57f84024-6ef5-11e8-b49f-37c904d87c93    REQUEST MADE
2018-06-13T10:34:27.731Z    57f84024-6ef5-11e8-b49f-37c904d87c93    trying to use cheerio to load page now
END RequestId: 57f84024-6ef5-11e8-b49f-37c904d87c93
REPORT RequestId: 57f84024-6ef5-11e8-b49f-37c904d87c93  Duration: 3003.16 ms    Billed Duration: 3000 ms    Memory Size: 128 MB Max Memory Used: 48 MB  
2018-06-13T10:34:29.499Z 57f84024-6ef5-11e8-b49f-37c904d87c93 Task timed out after 3.00 seconds

导致问题的代码片段是:

var URL = 'https://en.wikipedia.org/wiki/' + searchTerm;
                            console.log(URL)
                            request(URL, function(error, response, html){
                                console.log('REQUEST MADE');
                                try {
                                    console.log( 'trying to use cheerio to load page now')
                                    if (html){
                                    var $ = cheerio.load(html);
                                        console.log('PAGE LOADED');
                                        var infobox = $('table.infobox').children('tbody');
                                        infobox.children().each(function(i, element){
                                            var row = $(this);
                                            if(row.children().first().children().first().text() == 'GHS hazard statements') {
                                                var hCodes = row.first().first().text().toString();
                                                var pPhrases = row.first().next().text().toString();
                                                context.succeed(
                                                    generateResponse(
                                                        buildSpeechletResponse(`I found the following ` + hCodes + ` ` + pPhrases, true),
                                                        {}
                                                        ))
                                            }
                                        })

                                } else {
                                    console.log('There was no HTML loaded. Please try again')
                                } 
                                } catch(error){
                                    console.log(error)
                                    console.log('THERE WAS AN ERROR PLEASE TRY AGAIN')
                                }

                            })

我也尝试过使用response.on()但是我得到错误"不能做.on"未定义的。

以前有没有这样的人?

2 个答案:

答案 0 :(得分:1)

嗯,只是根据答案找到了它。以为我会添加图片。

Screenshot of AWS Lambda timeout screen

答案 1 :(得分:0)

解决问题:

在Lambda设置屏幕中将超时设置设置为更高的数字。有点hacky,你需要确保你有良好的错误处理。但它现在有效

希望这可以帮助别人。