İ read the thread. İ must say i don’t think the issue here is serialization of parse objects. Yes converting mongo object to parse object is CPU intensive. But that doesn’t explain decreasing performance. İf that was the issue we get 300req/sec at the begining and it would keep going like that. But we start as 500 and decrease to even under 100.
And if that was the problem /classes/Follow endpoint should also decrease performance. But it doesn’t. When we get parse object directly from classes endpoint, performance is stable. So our problem is cloud code spesific.
But i can do more tests. And I’m not sure what’s the real problem. Like you said this could be a big thing.
İt’s very late here so I will do test tomorrow. Btw you can also replicate the issue i have and maybe investigate if you want.
And maybe i should open an issue ? What do you think?
Edit: I found a github issue. USer says saveAll operation getting slower after each call. Performance decrease is similar. But I’m not sure if our problems is related.
https://github.com/parse-community/parse-server/issues/6300
Edit2: I made an another test. In this test I used find method. But I run this query over an empty collection. So query will return empty array. Here is the code:
Parse.Cloud.define("helloCodeGetFollow", async (request) => {
const Block = Parse.Object.extend("Block");
//There is no data in Block Class
const getBlock = new Parse.Query(Block);
return await getBlock.find({useMasterKey:true});
});
Performance was stable. And performace didn’t decrease. So our problem is related to Parse objects, But to confirm this we need to bypass mongo object to parse object transformation. I created a thread for this: Can we get raw JSON instead of ParseObject as result of query?
@dplewis said He implemeted query option to retrive original mongo result instead of parse objet to php sdk. You can use it like this: query.find({ json: true }) But this hasnt been implemented in js sdk. So in order to confirm our problem relays on parse object, we need to get raw json as result. But I have no idea how do we do that.
Edit3: I missed this advice
I created a new cloud with this code:
const Config = require('./node_modules/parse-server/lib/Config');
const config = Config.get(Parse.applicationId);
const mongoAdapter = config.database.adapter;
Parse.Cloud.define("cloudCode", async (request) => {
await mongoAdapter.connect();
return await mongoAdapter.database.collection("Product");
});
I will share the results.
Edit4: I cant run the above code. It give me error.
RangeError: Maximum call stack size exceeded
Edit5: I couldnt make it. Code gives the above error. I also tried mongo npm package. But same error happens. I dont know how to make this test.