Node.js AWS Lambda随机超时

我们创建了一个名为-execInspector的基于NodeJS的Lambda函数，该函数每天触发一次。此函数是基于NodeJS中的AWS Lambda blueprint-->“inspector计划运行”创建的

我们看到的问题是计划的作业某天或某天随机失败。我们仅从cloudwatch日志流中获取以下日志

在一周内，它会随机运行约4/5次，并在剩余的几天内失败。根据日志，它的执行只消耗很少的内存/时间，但不确定它随机失败的原因。它也会在被杀死之前重试3次

从下面的日志中，我们还可以发现该作业平均只需要35 MB，平均只需要60秒就可以完成。我们尝试修改NodeJ的运行时间，增加内存，超时远远超过此限制，但没有任何效果

如果有人知道为什么会发生这种情况，你能提供一些替代方法来自动处理这些故障吗

其他投入： 我们已经给出了5分钟的最大超时时间，但它没有说“300秒后超时”

我在这里的意思是，触发检查器的任务在avg上只需要不到30秒的时间。因为它是一个基于PaaS的解决方案，我不能期望它总是在30秒内完成。但是60秒应该足够处理一个30秒内就能完成的任务

CloudWatch成功日志示例：

18:01:00 启动请求ID:12eb468a-4174-11e7-be7b-6d0faaa584aa版本：$LATEST 18:01:03 2017-05-25T18:01:02.935Z 12eb468a-4174-11e7-be7b-6d0faaa584aa{评估RUNARN:'arn:aws:inspector:us-east-1:102461617910:target/0-Ly60lmEP/template/0-POpZxSLA/run/0-MMx30fLl'} 2017-05-25T18:01:02.935Z 12eb468a-4174-11e7-be7b-6d0faaa584aa{评估RUNARN:'arn:aws:inspector:us-east-1:102461617910:target/0-Ly60lmEP/template/0-POpZxSLA/run/0-MMx30fLl'} 18:01:03 结束请求ID:12eb468a-4174-11e7-be7b-6d0faaa584aa 结束请求ID:12eb468a-4174-11e7-be7b-6d0faaa584aa 18:01:03 报告请求ID:12eb468a-4174-11e7-be7b-6d0faaa584aa持续时间：2346.37毫秒计费持续时间：2400毫秒内存大小：128 MB最大使用内存：33 MB 报告请求ID:12eb468a-4174-11e7-be7b-6d0faaa584aa持续时间：2346.37毫秒计费持续时间：2400毫秒内存大小：128 MB最大使用内存：33 MB

Cloudwatch日志：

'use strict';

/**
 * A blueprint to schedule a recurring assessment run for an Amazon Inspector assessment template.
 *
 * This blueprint assumes that you've already done the following:
 * 1. onboarded with the Amazon Inspector service https://aws.amazon.com/inspector
 * 2. created an assessment target - what hosts you want to assess
 * 3. created an assessment template - how you want to assess your target
 *
 * Then, all you need to do to use this blueprint is to define an environment variable in the Lambda console called
 * `assessmentTemplateArn` and provide the template arn you want to run on a schedule.
 */

const AWS = require('aws-sdk');

const inspector = new AWS.Inspector();

const params = {
    assessmentTemplateArn: process.env.assessmentTemplateArn,
};

exports.handler = (event, context, callback) => {
    try {
        // Inspector.StartAssessmentRun response will look something like:
        // {"assessmentRunArn":"arn:aws:inspector:us-west-2:123456789012:target/0-wJ0KWygn/template/0-jRPJqnQh/run/0-Ga1lDjhP"
        inspector.startAssessmentRun(params, (error, data) => {
            if (error) {
                console.log(error, error.stack);
                return callback(error);
            }

            console.log(data);
            return callback(null, data);
        });
    } catch (error) {
        console.log('Caught Error: ', error);
        callback(error);
    }
};

下面的类似日志重复了3次，这似乎是一次重试尝试

06:32:52 启动请求ID:80190395-404a-11e7-845d-1f88a00ed4f3版本：$LATEST 06:32:56 2017-05-24T06:32:55.942Z 80190395-404a-11e7-845d-1f88a00ed4f3开始执行。。。 06:33:52 结束请求ID:80190395-404a-11e7-845d-1f88a00ed4f3 06:33:52 报告请求ID:80190395-404a-11e7-845d-1f88a00ed4f3持续时间：60000.88毫秒计费持续时间：60000毫秒内存大小：128 MB最大使用内存：32 MB 06:33:52 2017-05-24T06:33:52.437Z 80190395-404a-11e7-845d-1f88a00ed4f3任务在60秒后超时 2017-05-24T06:33:52.437Z 80190395-404a-11e7-845d-1f88a00ed4f3任务在60秒后超时

Lambda代码：

'use strict';

/**
 * A blueprint to schedule a recurring assessment run for an Amazon Inspector assessment template.
 *
 * This blueprint assumes that you've already done the following:
 * 1. onboarded with the Amazon Inspector service https://aws.amazon.com/inspector
 * 2. created an assessment target - what hosts you want to assess
 * 3. created an assessment template - how you want to assess your target
 *
 * Then, all you need to do to use this blueprint is to define an environment variable in the Lambda console called
 * `assessmentTemplateArn` and provide the template arn you want to run on a schedule.
 */

const AWS = require('aws-sdk');

const inspector = new AWS.Inspector();

const params = {
    assessmentTemplateArn: process.env.assessmentTemplateArn,
};

exports.handler = (event, context, callback) => {
    try {
        // Inspector.StartAssessmentRun response will look something like:
        // {"assessmentRunArn":"arn:aws:inspector:us-west-2:123456789012:target/0-wJ0KWygn/template/0-jRPJqnQh/run/0-Ga1lDjhP"
        inspector.startAssessmentRun(params, (error, data) => {
            if (error) {
                console.log(error, error.stack);
                return callback(error);
            }

            console.log(data);
            return callback(null, data);
        });
    } catch (error) {
        console.log('Caught Error: ', error);
        callback(error);
    }
};

---

日志显示您的请求在60秒后超时。根据这一点，您可以将其设置为高达5分钟，如果您的任务需要约60秒，超时时间为60秒，则可能有一些任务超时。这就是日志给我的建议。否则，请从函数中发布一些代码

请参考我上面添加的详细信息。你知道这一点吗？