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StorageGRID Admin Node Upgrade: “Service unavailable” (HTTP 503) for ~40 Minutes after upgrade

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Applies to

  • NetApp StorageGRID
  • StorageGRID Primary Admin Node with Linux OS container
  • StorageGRID version 11.9 (upgrade from 11.8.x)

Issue

After completing the upgrade of the Primary Admin Node to StorageGRID 11.9, the following symptoms were observed:

  • The Grid Manager web interface displayed Service unavailable for approximately 40 minutes.
  • The upgrade workflow does not proceed to upgrade other nodes; the GUI returned to the Select files step.

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  • The NODES tab and other management functions were inaccessible.

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  • The issue resolved itself after about 40 minutes without manual intervention.

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