Postgre SQL Restore operation consistently fails with InternalServerError.

Question

Postgre SQL Restore operation consistently fails with InternalServerError.

S.A. Chandrasiri 0

Restore operation consistently fails with InternalServerError.

Tracking ID: 34c30e9f-94d3-45f0-b45b-46b529cfb2a8

PostgreSQL version: 17.6

Region: East US

Backup timestamp: 2026-01-14 22:05:53.104

Storage autogrow enabled, matching zone and version.

This worked last month — now fails across all restore paths.

This appears to be a backend restore pipeline failure.

Please escalate to engineering team.

Moderator: Moved from Azure SQL Database.

VRISHABHANATH PATIL 5,250 Reputation points Microsoft External Staff Moderator

2026-01-15T19:25:13.6966667+00:00

Hi @S.A. Chandrasiri

Thank you for reaching out to Microsoft QA and your patience and for sharing the context around your deployment scenario. I completely understand how important it is for you to provision staging slots within the same region, and I realize the current limitation in the specified region is impacting your deployment.

Currently, there’s no confirmed ETA for restoration of provisioning capabilities in region, but our engineering team is actively working on resolving the issue and restoring full functionality as soon as possible.

If services cannot be created there right now, it unfortunately means you would need to consider relocating your entire deployment to a region where this functionality is fully supported.
S.A. Chandrasiri 0 Reputation points

2026-01-15T19:38:03.0566667+00:00

Thank you for your consideration

S.A. Chandrasiri 0

Hi,

Azure PostgreSQL Flexible Server restore is failing with InternalServerError for all backups before Jan 15.

{

"code": "DeploymentFailed",

"target": "/subscriptions/49ce8............52/resourceGroups/ps......roup/providers/Microsoft.Resources/deployments/RestorePostgreSQLFlexibleServer_069d5d7..........f9e2f439c534c",

"message": "At least one resource deployment operation failed. Please list deployment operations for details. Please see https://aka.ms/arm-deployment-operations for usage details.",

"details": [

{

  "code": "ResourceDeploymentFailure",

  "target": "/subscriptions/49ce88cc-........./resourceGroups/ps......./providers/Microsoft.DBforPostgreSQL/flexibleServers/bkupservr0109",

  "message": "The resource write operation failed to complete successfully, because it reached terminal provisioning state 'Failed'."

}
```  ]

}

Tracking ID: 34c30e9f-94d3-45f0-b45b-46b529cfb2a8

Source server: pgfocusdbserver

Region: East US

PostgreSQL version: 17.6

The Jan 15 backup restores successfully, but all earlier backups fail with InternalServerError. 

This indicates corruption in Azure’s backup snapshot chain or WAL archive before Jan 15.

This is a platform-level issue affecting backup integrity. 

Please escalate to the PostgreSQL engineering team to validate and repair the backup chain.  
  
Thank you very much

Best regards

1 answer

Your answer

VRISHABHANATH PATIL 5,250 Reputation points Microsoft External Staff Moderator

2026-01-15T19:25:13.6966667+00:00

Hi @S.A. Chandrasiri

Thank you for reaching out to Microsoft QA and your patience and for sharing the context around your deployment scenario. I completely understand how important it is for you to provision staging slots within the same region, and I realize the current limitation in the specified region is impacting your deployment.

Currently, there’s no confirmed ETA for restoration of provisioning capabilities in region, but our engineering team is actively working on resolving the issue and restoring full functionality as soon as possible.

If services cannot be created there right now, it unfortunately means you would need to consider relocating your entire deployment to a region where this functionality is fully supported.
S.A. Chandrasiri 0 Reputation points

2026-01-15T19:38:03.0566667+00:00

Thank you for your consideration
S.A. Chandrasiri 0 Reputation points

2026-01-16T01:19:47.63+00:00

Hi,

Azure PostgreSQL Flexible Server restore is failing with InternalServerError for all backups before Jan 15.

{

"code": "DeploymentFailed",

"target": "/subscriptions/49ce8............52/resourceGroups/ps......roup/providers/Microsoft.Resources/deployments/RestorePostgreSQLFlexibleServer_069d5d7..........f9e2f439c534c",

"message": "At least one resource deployment operation failed. Please list deployment operations for details. Please see https://aka.ms/arm-deployment-operations for usage details.",

"details": [

{ "code": "ResourceDeploymentFailure", "target": "/subscriptions/49ce88cc-........./resourceGroups/ps......./providers/Microsoft.DBforPostgreSQL/flexibleServers/bkupservr0109", "message": "The resource write operation failed to complete successfully, because it reached terminal provisioning state 'Failed'." } ``` ] } Tracking ID: 34c30e9f-94d3-45f0-b45b-46b529cfb2a8 Source server: pgfocusdbserver Region: East US PostgreSQL version: 17.6 The Jan 15 backup restores successfully, but all earlier backups fail with InternalServerError. This indicates corruption in Azure’s backup snapshot chain or WAL archive before Jan 15. This is a platform-level issue affecting backup integrity. Please escalate to the PostgreSQL engineering team to validate and repair the backup chain. Thank you very much Best regards

Answer 1

The error you are encountering, InternalServerError, during the PostgreSQL restore operation could be due to several factors, including backend issues or resource states that are not ready for the operation. Here are some steps you can take to troubleshoot the situation:

Check Resource State: Ensure that the PostgreSQL server is in a valid state to perform the restore operation. The server should have the property "state": "Ready" in its resource JSON script.
Review Backup Validity: Confirm that the backup timestamp you are using is valid and that the backup exists. If the backup is older than the retention period or if there are issues with the backup itself, it could lead to failures.
Monitor Activity Logs: Use the Azure Activity log to monitor the restore operation and check for any additional error messages or codes that might provide more context about the failure.
Common Errors: Be aware of common errors that can occur during backup and restore operations. For instance, if the resource group or resource is not found, or if there are authorization issues, these can lead to failures.
Contact Support: If the issue persists after checking the above points, it may be necessary to escalate the issue to the Azure support team or engineering team, as it could be a backend issue that requires their intervention.

Since this operation worked previously, it may indicate a change in the backend or configuration that needs to be addressed by the engineering team.

S.A. Chandrasiri 0 Reputation points

2026-01-15T18:03:07.9866667+00:00

Thz for the reply.

There is no additional errors. All status are good. But it is failing again and again. I don't have a support subscription and no way to submit a ticket.

It is hard to track this error as it is coming from Azure back end
S.A. Chandrasiri 0 Reputation points

2026-01-15T18:21:33.7866667+00:00

pls review this too
S.A. Chandrasiri 0 Reputation points

2026-01-17T18:33:31.7233333+00:00

Hi,

Azure is working well for me now. Thank you very much for your support.

Problem is resolved!

Chandrasiri

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Postgre SQL Restore operation consistently fails with InternalServerError.

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