Archive MySQL Data In Chunks Using Stored Procedure

In a DBA’s day to day activities, we are doing Archive operation on our transnational database servers to improve your queries and control the Disk space. The archive is a most expensive operation since its involved a huge number of Read and Write will be performed. So its mandatory to run the archive queries in chunks. The archive is depended on business use. Many of us need a copy of the data on an archive database to refer later. To perform the archive we can just simply run the delete query with the limit. But we need to run the query again and again until the matched rows count is 0. We can create a procedure to do this in a while loop. I have created one such procedure to archive many tables. 

3 min read

Internals Of Google DataStore And Technical Overview

Google Cloud Platform provides many varieties of solutions. In Data world particularly in NoSQL technology Google provides Datastore a highly scalable and availability solution with ACID capabilities. I have read a lot about the Google Datastore and its Internals. Here Im going to merge everything as a single blog post.

5 min read


MySQL supports three types for binlog format. For safer binlog based replication its recommended to use ROW based replication. But even though in some worst cases this leads to data inconsistency. Later MySQL came up with the concept of GTID (global transaction identifiers) which generates the unique binlog entries to avoid any data inconsistency. This feature supports in MySQL 5.6+. Percona MySQL Servers is also using the same structure of MySQL’s  GTID. But MariaDB GTID is bit different.

6 min read

Automatically Add EC2 Instances to Active Directory Domain

Windows Servers are in AWS will show some glitches in sometimes. My previous articleexplains how Windows Server 2016 had some issues with DNS Suffix and Forwarders. This time I got a chance to play around with PowerShell automations. The requirement is automatically add EC2 instances to Active directory domain during the instance launch. It might be an On Demand purpose ec2 or launched by an Auto scaling group.

3 min read