如何使用JS SDK增加AWS Lambda的连接限制

Question

目前，我最多只能同时执行50个 lambda函数。 是因为我必须设置ConnectionLimit 。

使用aws .net skd，我可以通过以下方式进行设置：

new AmazonLambdaClient(new AmazonLambdaConfig
    {
        ConnectionLimit = 200,
        RegionEndpoint = RegionEndpoint.APSoutheast2
    });

///这是我用来调用lambda的代码

// Load the AWS SDK for Node.js
var AWS = require('aws-sdk');
// Set the region 
AWS.config.update({region: 'ap-southeast-2'});
var lambda = new AWS.Lambda();

function fireLambda(){
    var lambdaParams = {
        FunctionName: "testLambda", 
        InvocationType: "RequestResponse", 
        LogType: "Tail", 
        Payload: '{"msgCount": 888}'
       };

   lambda.invoke(lambdaParams, function(err, data) {
         if (err){
            console.log(err, err.stack); // an error occurred
         }else{
            console.log(data);           // successful response
         }

         fireLambda();
       });
}

exports.handler = (event, context, callback) => {
    let maxCount = event.maxConcurrentCount || 50;

    setTimeout(() => {
        process.exit(1);
    }, 8000);
    while(maxCount > 0)
    {
        maxCount--;
        fireLambda();
    }
};

另外，此Lambda的最大并发限制设置为300 。

Answer 1

我认为您应该看看： AWSjavascriptSDKdoc

具体来说，需要参数的函数putFunctionConcurrency ：

- FunctionName = name of the function you are setting concurrent execution limits on.
- ReservedConcurrentExecutions = concurrent execution limit number