Container Issues

There are two common ways to log into a container:

  • ssh -i <pem_file> bluedata@<IP-address-of-container>
  • docker exec -it <hostname> bash
SymptomRecommended Action

Error message Checking erlang rpc ports: FAILED. Port(s) 9000,9001 must be available.

This error occurs when these ports are already in use by other applications.

Execute the following commands to find out which process is using these ports:

# ss -lntp | grep 9000
# ss -lntp | grep 9001

To resolve this error:

  • If only the epmd process is running, then it can be terminated safely.
  • If beam.smp is running, then HPE Ezmeral Runtime Enterprise is already installed.
  • Otherwise, remove the other applications or processes to free up these ports.
Yum update errors may occur because some of the required RPMs are not accessible.

Verify that all the required RPMs are accessible and are not on a block list.

The Kubernetes RPMs file for air gap installations contains the required RPMs. See Configuring Air Gap Kubernetes Host Settings. If you need a separate list of RPMs for this version of HPE Ezmeral Runtime Enterprise, contact your Hewlett Packard Enterprise support representative.
Installation fails because of a security/permission problem. Collect and review /var/log/secure to determine the cause of the problem.
Application tasks take longer when running on a specific host. Determine whether the performance impact is caused by HPE Ezmeral Runtime Enterprise by running the same application on another host which is not running HPE Ezmeral Runtime Enterprise. If the performance problem is observed only on those hosts running HPE Ezmeral Runtime Enterprise, then disable virtual node assignment for the affected host until the problem is resolved.
Pods exit prematurely. Access the Host(s) Info and Services Status tabs of the Cluster Details screen to determine whether the nodes or services are experiencing issues (yellow Warning or red Critical dots).