apollo-server-lambda require taking seconds to finish

This piece of code in my structure is taking several seconds in some cases:

console.log('require apollo-server-lambda start');
const { ApolloServer, AuthenticationError } = require('apollo-server-lambda');
console.log('require apollo-server-lambda end');

...Code related to Graphql
const ApolloServerInit = new ApolloServer({
	schema: new GraphQLSchema({
		query: new GraphQLObjectType({
			name: 'RootQueryType',
			fields: schemaObject
		})
	}),
	context: async ({ event, context }) => {
		if(event.source === 'serverless-plugin-warmup') {
			throw new AuthenticationError('Warmup Complete');
		}


		return {
			headers: event.headers,
			functionName: context.functionName,
			event,
			context
		};
	},
	tracing: true,
	engine: { apiKey: process.env.APOLLO_ENGINE_KEY },
	formatError: error => {
		delete error.extensions;
		delete error.path;

		return error;
	},
	playground: process.env.NODE_ENV !== 'production'
});

console.log('Starting ApolloServer');
const apolloServer = ApolloServerInit.createHandler({
	cors: {
		origin: '*',
		credentials: true
	}
});
console.log('Starting ApolloServer');
module.exports = apolloServer

Log from this piece code:

2019-05-24T17:56:26.620Z	a81bfad3-dc95-4f43-ab06-0d7e05a66b68	require apollo-server-lambda start
2019-05-24T17:56:29.744Z	a81bfad3-dc95-4f43-ab06-0d7e05a66b68	require apollo-server-lambda end
...More Logs
2019-05-24T17:56:33.205Z	a81bfad3-dc95-4f43-ab06-0d7e05a66b68	Starting ApolloServer
2019-05-24T17:56:45.305Z	a81bfad3-dc95-4f43-ab06-0d7e05a66b68	End  ApolloServer

I’m using:

• lambda v8.10
• apollo-server-lambda v2.5.0
• graphql v14.3.1
• graphql-relay v0.6.0

honestly, I have no clue of what can be happening because the issue is not regular. It happens sometimes. The same code some times takes ~400ms sometimes several seconds.

I’ve tried apollo-server-lambda@2.4.8, but the issue remains

[dsanders11]

honestly, I have no clue of what can be happening because the issue is not regular. It happens sometimes. The same code some times takes ~400ms sometimes several seconds.

@abernix, isn’t this just describing AWS Lambda cold-start behavior? Sounds like what one would expect with Lambda, it’s not a constant performance kind of thing. @luanmuniz, I think this is expected behavior. Look into Lambda “cold starts”. Execution can be quite slow when it hasn’t been used in a while.

Regarding #2674, yes, there’s a regression. I’ll comment on that PR.

[luanmuniz]

@abernix Just to give you an update. Indeed apollo-server-lambda@2.6.0-alpha.5 doesn’t give me cors problems out of the blue. But I’m still having the original problems with this version

I’m still debugging what’s happening. I will get to you as soon as I have any news! I will try to have something this week

Thanks for the clues!