is there any downtime while upgrading from redis 4 to redis 6 for P2 plan?

Deole, Pushkar (Pushkar) 60 Reputation points
2023-03-01T14:00:22.4166667+00:00

Hi,

We have existing Azure redis cluster at redis 4 version at P2 plan with 2 shards, 13GB each.

We want to upgrade this to redis 6 version with same plan and same configuration.

Will there be any downtime during upgrade and if so then how much? We will have clients using the system during upgrade so we can't afford downtime or data loss.

Azure Cache for Redis
Azure Cache for Redis
An Azure service that provides access to a secure, dedicated Redis cache, managed by Microsoft.
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  1. GeethaThatipatri-MSFT 29,387 Reputation points Microsoft Employee
    2023-03-01T16:06:52.0466667+00:00

    Hi, @Deole, Pushkar (Pushkar) Welcome to the Microsoft Q&A platform, thanks for posting the question

    There will be a momentary interruption where the client connections are reset, similar to the routine server maintenance events that happen several times each month. No downtime aside from that.

    I hope this information helps, please let me know if you need have any additional questions.

    Regards

    Geetha

    1 person found this answer helpful.

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  1. Frank Kerrigan 0 Reputation points
    2023-06-27T10:16:28.5166667+00:00

    Downtime is excessive.

    For a C0 BASIC the downtime was 11 minutes. I tested this twice on two different REDIS instances.

    Will this differ if there are different scaled versions such as Standard C0 ?

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