Help 😭 Only one test runs successfully and others fail, no matter what way and order I launch them

[hellydays776 (Eva Moon)]

I have several python selenium tests (each test in separate python file) which I want to run on a BIT BUCKET PIPELINE. It always fails after performing successfully just ONE of them (tried to change order, used different commands for running them, but nothing helps). I believe that it’s something related to session lifetime for queued slots or something of the kind, but don’t quite get how to change settings and what to pass to fix it. Could you help me please

docker last line of log
time=“2023-12-24T23:52:56.729131389Z” level=warning msg=“grpc: addrConn.createTransport failed to connect to {localhost 0 }. Err :connection error: desc = "transport: Error while dialing only one connection allowed". Reconnecting…” module=grpc

selenium-chrome service last lines of log:
23:58:26.158 INFO [LocalNode.stopTimedOutSession] - Session id 692d7ce993b71f7f2e265c3bf4597ba8 timed out, stopping…
23:58:26.285 INFO [LocalSessionMap.lambda$new$0] - Deleted session from local Session Map, Id: 692d7ce993b71f7f2e265c3bf4597ba8
23:58:26.286 INFO [GridModel.release] - Releasing slot for session id 692d7ce993b71f7f2e265c3bf4597ba8
23:58:26.287 INFO [SessionSlot.stop] - Stopping session 692d7ce993b71f7f2e265c3bf4597ba8

bitbucket-pipelines.yml

image: python:3.11

pipelines:
default:

• parallel:
• step:
  name: Test
  caches:
• pip
  script:
• export DOCKER_BUILDKIT=1
• docker build .
• if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
• python -m pytest tests/test_login.py
• python -m pytest tests/test_create_employee.py
  services:
• docker
• selenium-chrome

definitions:
services:
selenium-chrome:
image: selenium/standalone-chrome:latest
ports:

• “4444:4444”
  restart: always

[hellydays776 (Eva Moon)]

UPDATE

So the solution is to increase max-session by passing

SE_NODE_OVERRIDE_MAX_SESSIONS: ‘true’
SE_NODE_MAX_SESSIONS: 8

So final bitbucket-pipelines.yml looks like this

image: python:3.11

pipelines:
default:

• parallel:
• step:
  size: 2x
  shm_size: 2gb
  runs-on:
• ‘self.hosted’
  name: Test
  caches:
• pip
  script:
• export DOCKER_BUILDKIT=1
• docker build .
• if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
• python3 -m pytest tests/*
  services:
• docker
• selenium-chrome

definitions:
services:
selenium-chrome:
image: selenium/standalone-chrome:latest
ports:
- “4444:4444”
restart: always
environment:
SE_NODE_OVERRIDE_MAX_SESSIONS: ‘true’
SE_NODE_MAX_SESSIONS: 8