Notebook Detached java.net.SocketTimeoutException: Connect Timeout

[Mpos]

When I attach a notebook to my cluster and run a cell the notebook is detached.

Cell execution states:Waiting for compute to be ready

Then the attached message is shown.

Notebook detached

Exception execution context: java.net.SocketTimeoutException: Connect Timeout

Any idea how to solve this? 

[Kaniz · Accepted solution]

Hi @Mpos, 

• Ensure that your network connection is stable and not experiencing any interruptions.
• Verify that your cluster and notebook are properly connected to the network.
• Check if your cluster configuration (such as network settings, security groups, or firewall rules) allows communication between the notebook and the cluster.
• Verify that the cluster is running and accessible
• Adjust the timeout settings to allow more time for the connection to be established. You can modify the timeout values in your notebook or cluster configuration.
• Look for any specific timeout-related parameters in your notebook environment.
• Sometimes, transient network issues can cause timeouts. Retry executing the cell after a few minutes to see if the issue persists.
• If the problem occurs consistently, proceed to the next steps.
• If your cluster is under heavy load, consider increasing its resources (such as memory or CPU) to handle notebook execution more efficiently.
• Monitor resource utilization to identify any bottlenecks.