When you are working on the AlwaysOn feature, it is crucial to understand how the AlwaysOn commit process works. This blog will walk you through how a synchronous and Asynchronous commit process works in AlwaysOn.

Data Synchronization in Synchronous mode 

• Primary replica is generating transaction log blocks. The secondary replica…

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There are many times you as DBA or Developer needs to get all row count from all tables or row count of all tables from all Databases in a SQL Server. You may need a quick way to count the number of rows contained within the tables. The following SQL… Read more

As the business requirement, It is very common to see a request for adding a new article or subscription to the existing publication. After adding the new article or subscription to the existing publication, we use snapshot agent to initialize it so that data can flow from Publisher to Distributor… Read more

In this blog, I am NOT going to discuss the SQL Server licensing model. If you are looking for that information, I would strongly suggest you talk to your Microsoft Technical Account Manager (TAM) or follow the SQL Server 2016 licensing Datasheet.

Here, I am going to discuss –… Read more

Yesterday, I was doing SQL Server Database stress and benchmarking testing on the client side. When I started ramping-up more and more workload on the server, I found the SQL Server was using only 20 CPUs. When I checked the box to know how many CPU the box got, it… Read more

Recently, I was working on the AlwaysOn Availability group issue where the log records were not moving from primary to secondary replica because of the wait type “PARALLEL_REDO_TRAN_TURN”.

During the troubleshooting, when I opened the AlwaysOn Dashboard to see the Log Send Rate, I found that the Log Send Rate… Read more

When you configure SQL Server AlwaysOn Availability Group from management studio, it may fail with below error while joining secondary replica to the availability group. Today, While I was preparing some demo on AlwaysOn for the community event, I encountered the same issue. So, I thought to blog the solution… Read more

With SQL Server 2016, Microsoft is installing SQL Server Telemetry or CEIP (Customer Experience Improvement Program) Services by default. It sends feature usage info back to Microsoft. You cannot skip the installation of these services. I find most of the DBAs even don’t aware that they have installed the… Read more

When a database is part of AlwaysOn Availability Group, it means whatever commands we are executing on Primary replica database, those commons will also be sent to all the Secondary replicas database via log records.

So, If you are adding a database file – data or log to the Primary… Read more

In the SQL Server AlwaysOn setup, whenever you are using a listener to connect to a secondary node, you have to provide additional connection parameters like ApplicationIntent=ReadOnly so that you can connect the secondary node.

If you have to connect many times in a day to the secondary node, keying… Read more

The AlwaysOn_health XEvent session is installed by SQL Server by default, and started by the Create Availability Group wizard when a new availability group is created.

AlwaysOn_health Extended Event Session

The xEvent session collects events triggered by events directly affecting AlwaysOn availability group like;

• AlwaysOn errors
• AlwaysOn state transitions
• AlwaysOn…

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The AlwaysOn Dashboard is an excellent tool in SQL Server Management Studio that allows you to monitor Replica status, Availability Group status, and Database status.

But, if you are wondering what the Dashboard uses internally to monitor the AlwaysOn health, so here is the answer – It utilizes system policies… Read more

If you are working on SQL Server Availability Group Databases, you may have seen that Availability Group is online but at-least one availability database at the primary or the secondary is not synchronizing.

In the blog, we are going to explore how to find what has interrupted synchronization between availability… Read more

When you are using the extended event to capture some data for troubleshooting purpose, you may want to start or stop it at a specific time. Unfortunately, the Extended Event feature doesn’t provide you the option to schedule it. But, it can easily be accomplished by using “ALTER EVENT SESSION”… Read more

Gladly sharing that I got the news of my MVP award on 1st July. I am happy, honored, and humbled to receive the Microsoft MVP award 2nd time in a row.

Thank you !!

My gratitude to my family who has been always there to support, guide and making me… Read more

SQLCMD mode in SSMS allows you to use the command line tool within SSMS. Using this feature of the SSMS, you don’t have to connect SQLCMD using the command prompt. It is really very helpful and less distracting when you want to connect with multiple SQL Server instances. You can… Read more

As a DBA, implementing a new database consists of a variety of aspects like correct table structure, tuning the stored procedures, creating right indexes, and many more. But all of these items, the stress testing and performance benchmarking play one of the most crucial roles. There are many tools available… Read more

In my previous blog, I discussed about “Which are the queries using a particular index or table?“. Today’s post, I am going to show how you can find all queries with Implicit Conversion in SQL Server.

What is an implicit conversion?

Implicit conversions occur whenever data with… Read more

The DMV sys.dm_db_index_usage_stats and sys.dm_db_index_operational_stats give you excellent detailed information about how the indexes are being used and what operations are occurring (select, insert, update, delete) in the database.

But they don’t tell you a particular index or table is being used by which all the queries. So, when you… Read more

It is very common to see in a relational database that stored procedures are using many Tables, Views, Sequence Object, Stored Procedures, Functions, or many more to process the business logic. If you happen to work on a Stored Procedure performance issue which referenced many objects, you might end up… Read more