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How Wiz achieved near-zero downtime for Amazon Aurora PostgreSQL major version upgrades at scale using Aurora Blue/Green Deployments

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Wiz, a cloud security company, developed an automated solution called DB Upgrade Pilot to minimize downtime when upgrading Amazon Aurora PostgreSQL databases from version 14 to 16. Their key strategy leveraged Aurora Blue/Green Deployments to achieve near-zero downtime.

  • Reduced database upgrade downtime from 1 hour to just 30 seconds
  • Automated an 8-step upgrade process with built-in safety measures
  • Used Aurora Blue/Green Deployments to create a synchronized replica
  • Implemented comprehensive monitoring and validation checks
  • Enabled automatic rollback if upgrade issues are detected

The solution provides a robust, low-risk method for performing major version upgrades across hundreds of PostgreSQL clusters, ensuring minimal business disruption and maintaining high performance.

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