nx run-many only serves the first 3 specified projects

• I am running the latest version "@nrwl/workspace": "^8.8.0"
• I checked the documentation and found no answer
• I checked to make sure that this issue has not already been filed
• I’m reporting the issue to the correct repository (not related to Angular, AngularCLI or any dependency)

Expected Behavior

all specified projects get served, when running nx run-many --target=serve --projects=<more than 3 projects> --parallel

Current Behavior

only the first 3 projects get served

Failure Information (for bugs)

console outputs:

nx run-many --target=serve --projects=one,two,three,four --parallel

NX  Running target serve for projects:

  - one
  - two
  - three
  - four

nx-min@0.0.0 nx <path-to-project>\nx-min
nx "run" "two:serve"

nx-min@0.0.0 nx <path-to-project>\nx-min
nx "run" "three:serve"

nx-min@0.0.0 nx <path-to-project>\nx-min
nx "run" "one:serve"

Steps to Reproduce

Please provide detailed steps for reproducing the issue.

1. npx create-nx-workspace@latest nx-min
2. cd nx-min
3. nx g @nrwl/nest:application one
4. nx g @nrwl/nest:application two
5. nx g @nrwl/nest:application three
6. nx g @nrwl/nest:application four
7. change ports so that all four have unique ports
8. nx run-many --target=serve --projects=one,two,three,four --parallel

Context

Please provide any relevant information about your setup:

• nx report :

  @nrwl/angular : Not Found
  @nrwl/cli : 8.8.0
  @nrwl/cypress : Not Found
  @nrwl/eslint-plugin-nx : 8.8.0
  @nrwl/express : Not Found
  @nrwl/jest : 8.8.0
  @nrwl/linter : 8.8.0
  @nrwl/nest : 8.8.0
  @nrwl/next : Not Found
  @nrwl/node : 8.8.0
  @nrwl/react : Not Found
  @nrwl/schematics : Not Found
  @nrwl/tao : 8.8.0
  @nrwl/web : Not Found
  @nrwl/workspace : 8.8.0
  typescript : 3.5.3

[AdamVig]

You should be able to work around this by setting the --maxParallel flag to a high number, for example:

nx run-many --target=serve --projects=one,two,three,four --parallel --maxParallel=100

The default value for --maxParallel is three, meaning that it runs tasks in batches of three by default. Since the “serve” target never exits, the run-many command never made it to the second batch of tasks.

To avoid further confusion about this situation, there could be a warning logged when the “serve” target is used with the run-many command.

[mkashifsnyder]

Just have a quick question how we can serve multiple applications with port as well… For example previously we were doing like that ng serve appname --port=5200 ng serve appname2 --port=5201

Can we do that with nx run-many based on following example apps AngularApp1 AngularApp2 NestApp1 NestApp2

then the command should be like that nx run-many --target=serve --projects=AngularApp1,AngularApp2,NestApp1,NestApp2 --port=5200,5201 --parallel --maxParallel=4

notice i have provided port numbers for only angular applications and for the nest we can control that from environment files