主区域关闭时如何写入 Azure 存储？

Question

Our application uses RA-GZRS for storage which enables to read data from the secondary when the primary is down, but can't write to it.

Is there a solution which enables application to do both read from and write to storage in the event of an Azure region going down?

Answer 1

In Azure Storage, there can be only one region (primary) where you can write. The other region (secondary) will always be read only.

One possible solution would be to do a manual failover so that the secondary region of your account becomes the primary and then you should be able to write to it. However, please be aware that the manual failover comes with a lots of caveats and make sure you understand those.

You can read more about those things here: https://docs.microsoft.com/en-us/azure/storage/common/storage-initiate-account-failover?tabs=azure-portal#important-implications-of-account-failover .

Answer 2

Please go through this . To quote from the article:

If the primary region becomes unavailable, you can choose to fail over to the secondary region. After the failover has completed, the secondary region becomes the primary region, and you can again read and write data . For more information on disaster recovery and to learn how to fail over to the secondary region, see Disaster recovery and storage account failover.

The tutorial here tells you how to build a highly available application that automatically switches between endpoints on a failure. It uses a circuit breaker pattern.