RegionServer Failed to Start Due to Residual Processes

Symptom

The HBase service fails to start, and an error is reported during the health check.

Cause Analysis

Check detailed information about HBase startup on the MRS Manager page. It is found that the previous process is not quit is displayed.

Solution

1. Log in to the node and run the ps -ef | grep HRegionServer command in the background. A residual process is found.
2. After confirming that the process can be killed, kill the process. If the process cannot be stopped by running the kill command, run the kill -9 command to forcibly stop the process.
3. Restart the HBase service.