Tirupati Venkat

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Clusters , MySQL

Comparison of NDB, XtraDB, Galera, and InnoDB Cluster

When working with MySQL and MariaDB, selecting the right database engine or clustering solution is crucial for performance, availability, ...

Tvenkat 20 Feb, 2025

Cassandra , Database , DBA

Cannot start node if snitch's data center (dc1) differs from previous data center (datacenter1). Please fix the snitch configuration, decommission and rebootstrap this node or use the flag -Dcassandra.ignore_dc=true.

Recently while working in Cassandra environment, I encountered below error and due to which it was not allowing me to start my Cassandra no...

Tvenkat 1 Feb, 2025

MySQL Server 5.7 to 8.0 in AWS RDS

1. Login to AWS console in account 2. Go to RDS services. 3. Search for instance " usmysqlserver-prod " N. Virginia region and...

Tvenkat 3 Aug, 2024

MySQL Server Enterprise Firewall Tutorial

MySQL Server Enterprise Firewall Tutorial

MySQL Enterprise Firewall provides real-time protection against database-specific attacks, safeguarding applications with user-supplied in...

Tvenkat 15 Jun, 2024

Database , postgresql

some frequently used PostgreSQL DBA scripts

Database administrators often use various scripts to monitor, manage, and troubleshoot PostgreSQL databases. Below are some frequently used ...

Tvenkat 29 Jan, 2024

centos , issues , Linux

Warning: failed loading '/etc/yum.repos.d/name-of-the-appstream-repo.repo',

[venkat@centos8srvr mysqlee]$ sudo yum install *.rpm* Repository cr is listed more than once in the configuration Repository extras is liste...

Tvenkat 29 Jan, 2024

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