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Airflow is failing to start in cloudera with issue Execute command Upgrade Airflow DB on service Airflow Could not create process: null

New Contributor

Hello all,

We are having an issue while adding airflow service to the CDH 5 cluster.

Problem: Executing the command "Upgrade Airflow DB" on the Airflow service in a Cloudera cluster on GCP (CentOS 7, CDH 5.16.2, Airflow 1.10.1) results in an error: "Could not create process: null". The attempt to upgrade the Airflow database fails while adding airflow service to the CDH cluster.


  • The same infrastructure and parcel configurations have been successfully used on 6-7 on-premises clusters.
  • Logs are empty, and the scm-server log provides the same error message, indicating a failure to create the process.


  • Operating System: CentOS 7
  • CDH Version: 5.16.2
  • Airflow Version: 1.10.1

Steps Taken:

  • Added the Airflow parcels and csd in the proper location with cloudera-scm owner.
  • Added the Airflow service.
  • Created Mysql DB for airflow.
  • Added Mysql lib/client on the all hosts.
  • Added Redis server to manage the airflow in cloudera.
  • Checked logs for detailed error information, but logs are empty.
  • Verified the successful deployment of Airflow on multiple on-premises clusters with the same configuration.

Issue Impact:

  • Unable to add the Airflow service on the Cloudera cluster in GCP, affecting the stability and functionality of Airflow.

Request for Assistance:

  • Seeking community insights and assistance in identifying the root cause of the issue.
  • Open to recommendations, troubleshooting steps, or insights from the community to resolve the "Could not create process: null" error during the Airflow DB upgrade.

Additional Information:

  • No recent changes in the configuration that could explain the failure.
  • SCM-server logs are not providing additional information.

Environment Details:

  • Cloudera Manager: Version 5.16.2
  • CDH: Version 5.16.2
  • Airflow: Version 1.10.1
  • Operating System: CentOS 7

Your collaboration and expertise are highly appreciated in resolving this issue.


Community Manager

@Mdismaik Welcome to the Cloudera Community!

To help you get the best possible solution, I have tagged our Airflow experts @SanthoshGowda @smdas  who may be able to assist you further.

Please keep us updated on your post, and we hope you find a satisfactory solution to your query.


Diana Torres,
Community Moderator

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