[🐛 Bug]: Error Could not start a new session. New session request timed out when upgrading node chrome to 127.0

[nicolas-lefloch]

What happened?

Context
We use Selenium with the Python client on a self-hosted EKS grid.
We are using a proxy to get out of our EKS cluster.

Problem
When upgrading Chrome node to 127.0 we noticed a significant increase in CPU on these pods, which was accompanied by numerous execution failures "Could not start a new session. New session request timed out".
It correctly works with node-chrome:126.0.

Command used to start Selenium Grid with Docker (or Kubernetes)

docker-compose 
 selenium-node-chrome:
    build:
      context: ./node/chrome/
    depends_on:
      - selenium-hub
    environment:
      SE_EVENT_BUS_HOST: "selenium-hub"
      SE_EVENT_BUS_PUBLISH_PORT: 4442
      SE_EVENT_BUS_SUBSCRIBE_PORT: 4443
      SE_START_XVFB: "false"
      TZ: "Europe/Paris"
      LANG: "fr_FR.UTF-8"
    restart: on-failure
    ports:
      - 6002:5555
    shm_size: 2gb
    links:
      - selenium-hub

manifest k8s

apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: my-selenium-node-chrome-integration
    app.kubernetes.io/component: selenium-node-chrome
  name: my-selenium-node-chrome-deployment-integration
  namespace: my-robots
spec:
  selector:
    matchLabels:
      app: my-selenium-node-chrome-integration
  template:
    metadata:
      labels:
        app: my-selenium-node-chrome-integration
        app.kubernetes.io/component: selenium-node-chrome
    spec:
      containers:
        - env:
          - name: SE_DRAIN_AFTER_SESSION_COUNT
            value: "1000"
          - name: SE_ENABLE_TRACING
            value: "false"
          - name: SE_EVENT_BUS_HOST
            value: my-selenium-hub-service-integration
          - name: SE_EVENT_BUS_PUBLISH_PORT
            value: "4442"
          - name: SE_EVENT_BUS_SUBSCRIBE_PORT
            value: "4443"
          - name: SE_NODE_MAX_SESSIONS
            value: "2"
          - name: SE_START_XVFB
            value: "false"
          image: selenium/node-chrome:127.0
          imagePullPolicy: IfNotPresent
          lifecycle:
            preStop:
              exec:
                command:
                  - bash
                  - -c
                  - |
                    echo "[PRESTOPHOOK] Starting..." > /proc/1/fd/1
                    curl -X POST localhost:5555/se/grid/node/drain --header 'X-REGISTRATION-SECRET;' && (echo "[PRESTOPHOOK] Drain order sent successfully !" > /proc/1/fd/1) || (echo "[PRESTOPHOOK] Drain order failed !" > /proc/1/fd/1)
                    while curl localhost:5555/status; do echo "[PRESTOPHOOK] Status page is still up, waiting..." > /proc/1/fd/1; sleep 1; done;
                    echo "[PRESTOPHOOK] Status page down, exiting..." > /proc/1/fd/1

Relevant log output

SessionNotCreatedException: Message: Could not start a new session. New session request timed out Host info: host: 'my-selenium-hub-deployment-integration-69dccc8f96-qs9cv', ip: 'XX.XX.XX.XX' Build info: version: '4.25.0', revision: '030fcf7918' System info: os.name: 'Linux', os.arch: 'amd64', os.version: '5.10.225-213.878.amzn2.x86_64', java.version: '17.0.12' Driver info: driver.version: unknown Stacktrace: at org.openqa.selenium.grid.sessionqueue.local.LocalNewSessionQueue.addToQueue (LocalNewSessionQueue.java:221) at org.openqa.selenium.grid.sessionqueue.NewSessionQueue.lambda$new$0 (NewSessionQueue.java:68) at org.openqa.selenium.remote.http.Route$TemplatizedRoute.handle (Route.java:192) at org.openqa.selenium.remote.http.Route.execute (Route.java:69) at org.openqa.selenium.remote.http.Route$CombinedRoute.handle (Route.java:360) at org.openqa.selenium.remote.http.Route.execute (Route.java:69) at org.openqa.selenium.grid.sessionqueue.NewSessionQueue.execute (NewSe... [ Message content over the limit has been removed. ] ...org.openqa.selenium.remote.http.Route$CombinedRoute.handle (Route.java:360) at org.openqa.selenium.remote.http.Route.execute (Route.java:69) at org.openqa.selenium.remote.AddWebDriverSpecHeaders.lambda$apply$0 (AddWebDriverSpecHeaders.java:35) at org.openqa.selenium.remote.ErrorFilter.lambda$apply$0 (ErrorFilter.java:44) at org.openqa.selenium.remote.http.Filter$1.execute (Filter.java:63) at org.openqa.selenium.remote.ErrorFilter.lambda$apply$0 (ErrorFilter.java:44) at org.openqa.selenium.remote.http.Filter$1.execute (Filter.java:63) at org.openqa.selenium.netty.server.SeleniumHandler.lambda$channelRead0$0 (SeleniumHandler.java:44) at java.util.concurrent.Executors$RunnableAdapter.call (Executors.java:539) at java.util.concurrent.FutureTask.run (FutureTask.java:264) at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1136) at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:635) at java.lang.Thread.run (Thread.java:840)

Operating System

EKS

Docker Selenium version (image tag)

node-chrome:127.0

Selenium Grid chart version (chart version)

No response

[github-actions]

@nicolas-lefloch, thank you for creating this issue. We will troubleshoot it as soon as we can.

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Thank you!

[VietND96]

I saw

          - name: SE_START_XVFB
            value: "false"

Did you run the test with headless mode (arg --headless=new) is used?

[nicolas-lefloch]

Thanks for your response, yes we use --headless=new

[VietND96]

Let's starting it by setting to true. I remember someone feedback that in new version, headless mode requires xvfb

[nicolas-lefloch]

Setting the SE_START_XVFB parameter to true worked perfectly.

Thank you for your quick help.

https://github.com/SeleniumHQ/docker-selenium/blob/trunk/README.md#running-in-headless-mode

[VietND96]

Yes, in README, there is a statement mentioned that xvfb is not needed. However, another statement in Troubleshooting mentioned a different - https://github.com/SeleniumHQ/docker-selenium/blob/trunk/README.md#headless
I will check and remove the old one since functionality could be changed depending on the browser version.

[github-actions]

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