Tag Archives: Troubleshooint

SQL – AlwaysOn Availability Group synchronization delay troubleshooting

I learned detailed step by step performance metrics and xevents that can be used to troubleshoot  AlwaysOn Availability Group synchronization delay.   https://docs.microsoft.com/en-us/archive/blogs/sql_server_team/troubleshooting-high-hadr_sync_commit-wait-type-with-always-on-availability-groups   Some network configuration that can be updated to address network challenges: https://docs.microsoft.com/en-us/windows-server/networking/technologies/network-subsystem/net-sub-performance-tuning-nics    

Posted in Performance, Referene, SQL, SQL Server, Uncategorized | Tagged , , , | Leave a comment

QueryStore – Regressed queries based on execution count

Handy TSQL statement to find gergressed queries on a given time based on execution count. I had a scenario to validate if application is executing any statements more frequently on a given time. Following SQL can be used to find … Continue reading

Posted in knowledge, Performance, Script, SQL, SQL Query, Uncategorized | Tagged , , , , , | Leave a comment