Building Indexes on Application Start

Joseph Vause

Posted on 29/07/2024 14:41:33

Hello,

Is there a way to programmatically get a list of all the indexes, and build it when the application starts up? Using Docker Containers means every time we release it would require manual intervention to rebuild the indexes. Ideally we want to get to a point where we can add indexes to the health check, so only switch to the new instance once all indexes are built and ready.

Thanks

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Nuno Aguiar

Posted on 30/07/2024 10:39:06

Hi Josheph,

You can subscribe to the Application.AfterStart notification and then call Dynamicweb.Indexing.IndexHelper.BuildIndexInstances().

Assuming they are small and only take a few seconds each, you should be fine. If you have large indexes that take multiple minutes to complete, you may see this taking even longer. We've experienced that concurrent builds take longer to complete than if they were triggered in sequence (one at a time).

Here's a quick example on how to subscribe to it

using Dynamicweb.Extensibility.Notifications;
namespace MyNamespace
{
    [Subscribe(Dynamicweb.Notifications.Standard.Application.AfterStart)]
    public class ApplicationStart : NotificationSubscriber
    {
        public override void OnNotify(string notification, NotificationArgs args)
        {
            if (!(args is Dynamicweb.Notifications.Standard.Application.AfterStartArgs myArgs))
            {
                return;
            }
            // your code here
        }
    }
}

Best Regards,

Nuno Aguiar

Joseph Vause

Posted on 31/07/2024 14:25:27

Hello,

Thanks for the response, unfortunately that Notification is obsolete, and it comes up with Dynamicweb.Notifications.Standard.Application' is obsolete: 'Do not use'

We have found an alternative solution using a hosted service.

Thanks

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Building Indexes on Application Start

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