Application gateway logs

There are possible causes for this scenario:

• It may be that the query does not match the log search in the past. Tweaking the query by reducing the parameters can help with testing.
• It is necessary to inspect the log collection routine. Are you using App Gateway diagnostic logs? The recommendation is to use diagnostic logs linked to a log analytics workspace. In this case, you can login to the workspace and configure retention and period metrics.

See: https://video2.skills-academy.com/pt-br/azure/azure-monitor/logs/data-retention-archive?tabs=portal-1%2Cportal-2

Hello @Mayank Jain ,

Welcome to Microsoft Q&A Platform. Thank you for reaching out & hope you are doing well.

I understand that you are not getting previous month's logs in application gateway and would like to know how to get them.

Could you please validate if diagnostic settings are enabled on your application gateway?

Refer: https://video2.skills-academy.com/en-us/azure/application-gateway/application-gateway-diagnostics#diagnostic-logging

If yes, then check where these logs are being sent? Log analytics/Storage/Event Hub?

Then check the retention period of that destination resource.

Diagnostic Settings Retention feature for storage accounts have been deprecated and should be migrated to Azure Storage lifecycle management as mentioned in the below doc:

https://video2.skills-academy.com/en-us/azure/azure-monitor/essentials/migrate-to-azure-storage-lifecycle-policy

But you'll still be able to see the configured retention settings.

If the logs are being sent to log analytics, then the retention period is set/changed at the workspace/table level:

https://video2.skills-academy.com/en-us/azure/azure-monitor/logs/data-retention-archive?tabs=portal-1%2Cportal-2#configure-the-default-workspace-retention-policy

So, check the retention period configured for your log destination.

If the retention period is more than 30 days, then you should be able to see the previous month's logs.

Regards,

Gita

@Mayank Jain , Could you please provide an update on this post? Kindly let us know if the above helps or you need further assistance on this issue.

@Mayank Jain , do you have any update on this post? Kindly let us know if you need further assistance on this issue.

Thank you Gitarani sharma we have resolved this issues . Thank you for quick responses.@GitaraniSharma-MSFT