Description
New Issue Checklist
- I am not disclosing a vulnerability.
- I have searched through existing issues.
- I am not just asking a question.
- I can reproduce the issue with the latest version of Parse Server.
Issue Description
When I do performance test with parse server, performance decreases. And When I say decreases, I don't mean it decrease a little then stop. I mean It always decrease and doesn't stop decreasing. But This only happens when we use parse query in cloud code and query (in cloud code) returns parse object(s). But queries that doesn't return parse object(count query) or queries that should return array of parse objects but returns empty array(for example collection is empty), performance doesn't decrease. They are fine. Problem only happens when query return parse object. You can see more information on forum thread that I have created
Steps to reproduce
Create a cloud code and put a simple query in it(query must return parse object(s)). Then do countinues benchmark test against this cloud code.
I used wrk library to do benchmark tests. This is the code I used when I do benchmarking:
wrk -t1 -c400 -d30s -H "Content-Type: application/json" -H "X-Parse-Application-Id: YOUR_APP_ID" -s post.lua http://parse_server_ip:1337/parse/functions/codeWithQuery
Here is an example cloud code:
Parse.Cloud.define("codeWithQuery", async (request) => {
const Follow = Parse.Object.extend("Follow");
//Follow class has 35 objects. So this query returns 35 parse objects.
const getFollow = new Parse.Query(Follow);
return await getFollow.find({useMasterKey:true});
});
Actual Outcome
Requests per second decreases. You can see my benchmark history on this message.
And You can see information on that thread.
Expected Outcome
Performance shouldn't decrease. Even if it does, It should be stable after some time.
Environment
Server
- Parse Server version:
4.3.0 - Operating system:
Ubuntu 18.04 - Local or remote host (AWS, Azure, Google Cloud, Heroku, Digital Ocean, etc):
Remote host
Database
- System (MongoDB or Postgres):
MongoDB - Database version:
4.4.1 - Local or remote host (MongoDB Atlas, mLab, AWS, Azure, Google Cloud, etc):
Remote
Client
- SDK (iOS, Android, JavaScript, PHP, Unity, etc):
Cloud Code - SDK version:
Cloud Code