Comments on: How To: Configure Read-Only Routing for Availability Groups https://sqlsolutionsgroup.com/how-to-configure-read-only-routing-for-availability-groups/ Mon, 22 Jul 2024 20:46:41 +0000 hourly 1 https://wordpress.org/?v=6.9.4 By: Randy Knight https://sqlsolutionsgroup.com/how-to-configure-read-only-routing-for-availability-groups/#comment-33582 Mon, 22 Jul 2024 20:46:41 +0000 https://sqlsolutionsgroup.com/?p=6282#comment-33582 In reply to Louise.

That may be true in 2022. I have not specifically looked at it to see. But it is still worthwhile to review and make sure the replicas are listed in the right order and based on how you want it to behave. If you have a replica in another data center for example, you typically wouldn’t want it to receive the queries from an app server in the main data center.

]]> By: Louise https://sqlsolutionsgroup.com/how-to-configure-read-only-routing-for-availability-groups/#comment-33145 Fri, 19 Jul 2024 02:45:34 +0000 https://sqlsolutionsgroup.com/?p=6282#comment-33145 In reply to Randy Knight.

But won’t it do that automatically? My testing (on SQL 2022) shows that it does.

]]> By: Randy Knight https://sqlsolutionsgroup.com/how-to-configure-read-only-routing-for-availability-groups/#comment-20675 Thu, 28 Dec 2023 00:22:44 +0000 https://sqlsolutionsgroup.com/?p=6282#comment-20675 In reply to Bee.

Because you don’t always know which replica will be PRIMARY and which will be SECONDARY/READONLY. This way if you failover, Read-Only Routing will still work. Also, if for some reason the read-only replica(s) are not available, you want it to be routed to the primary.

]]> By: Bee https://sqlsolutionsgroup.com/how-to-configure-read-only-routing-for-availability-groups/#comment-20673 Wed, 27 Dec 2023 22:55:15 +0000 https://sqlsolutionsgroup.com/?p=6282#comment-20673 why do we need to add both the server that are part of AG to the read only routing list? I though we only the replica and not both instances.

]]> By: Randy Knight https://sqlsolutionsgroup.com/how-to-configure-read-only-routing-for-availability-groups/#comment-552 Sat, 13 Mar 2021 21:15:32 +0000 https://sqlsolutionsgroup.com/?p=6282#comment-552 In reply to Kobi Cohen.

Great point on the client side ApplicationIntent. That may be worth a follow-up post of it’s own.

Thanks for reading!

]]> By: Kobi Cohen https://sqlsolutionsgroup.com/how-to-configure-read-only-routing-for-availability-groups/#comment-545 Sat, 13 Mar 2021 09:27:11 +0000 https://sqlsolutionsgroup.com/?p=6282#comment-545 Gteat post Scott.
I have 2 comments:
1. You might want to use the server IP instead of server name for routing url since if the refferencing App or user are out of the domain you might have a problem..
2. Routing will not be done unless you add “ApplicationIntent=ReadOnly” (it is case sensitive) to the connection string and make sure that secondary replica is readable.
But the greatest challenge here is to educate Developers, DBA, QA and etc. to properly use it (via SSMS, App and etc.) and only in connections that does only reading and not writing.
It took us a while and few presentations to do that 😀
Regards

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