Avinash Vallarapu

Avinash Vallarapu

Avinash Vallarapu

PostgreSQL Support Tech Lead, Percona


* Avinash Vallarapu (Avi) is currently working for Percona as a PostgreSQL Support Tech Lead. Before joining Percona, he worked for OpenSCG for 2.2 years as a Database Architect and for Dell as a Tech Lead for 9.8 Years. He has a vast experience in technologies like Oracle, PostgreSQL, MySQL and MongoDB. He is an avid Python and Golang developer. He has co-authored a book on PostgreSQL : Beginning PostgreSQL on Cloud and another book on MySQL is in progress.

* He spoke at various PostgreSQL Conferences in the past including -
* PGCONF India - 2017 - Bengaluru, India.
* PGCON 2018 - Ottawa, Canada.
* Percona Live - PostgreSQL Track (2018) - Frankfurt, Germany.
* PGCONF India - 2019 - Bengaluru, India.

* His areas of expertise are PostgreSQL Training, Consulting and Migrations.

All Sessions

PostgreSQL Tutorial for Oracle, MySQL DBAs and Beginners

This is the first part of a two-part tutorial session, morning and afternoon.

* This tutorial is focused on teaching PostgreSQL to professionals who are already experienced with Oracle or MySQL. As we discuss from the basics, even a beginner may adapt the concepts easily. Relational databases share a lot of similar concepts. You may find it easier if we help you relate the concepts of PostgreSQL with Oracle/MySQL. Thus, we will start with PostgreSQL Architecture for Oracle/MySQL DBAs.

* The approach we take with this tutorial is to present an overview of the PostgreSQL architecture and operation in view of MySQL's and Oracle's. We'll mix lecture with hands-on work, having the audience apply the concepts we present in practice in a lab format before covering new ones, starting with a simple and quick installation of PostgreSQL and going all the way to set up and maintain a stand by replica. By the end of the day, attendees shall walk away with a good understanding of how PostgreSQL works, and feel confident enough to try it themselves.

Here are the main points covered in this tutorial :

* Brief history of PostgreSQL and its features
* PostgreSQL Architecture for MySQL/Oracle DBAs and beginners.
* Installation of PostgreSQL
* Create/Start/Stop a PostgreSQL Cluster and the components of a Data Directory
* PostgreSQL parameters/settings you need to know
* PostgreSQL User Management
* MVCC in PostgreSQL
* VACUUM and Transaction ID Wraparound in PostgreSQL
* Types of Indexes
* EXPLAIN in PostgreSQL
* Logical and Physical Backups and PITR
* Streaming replication
* Failover
* Declarative Partitioning in PostgreSQL 10 and furthermore features in PostgreSQL 11.

Upgrade or Migrate Your PostgreSQL Database Through a Lowest Possible Downtime

PostgreSQL performance varies between different releases. Every new version comes with added features and performance improvements that help the growing adoption of PostgreSQL. All these continuous These ongoing developments and improvements drive us to plan on upgrading our PostgreSQL environments, but that's not always an easy task. A few common concerns when it comes to upgrading PostgreSQL are extended downtime, converting the tables partitioned using triggers to declarative partitions, the search for the safest options to upgrade and the effort required in the upgrading process itself. In this talk we'll discuss the variety of options available that can help you upgrade your PostgreSQL servers in the best possible way.

This talk includes:
1. The most significant performance improvements in recent PostgreSQL versions including PostgreSQL 11 and 10.
2. A summary of features that have been implemented with every new version since PostgreSQL 9.1.
3. What is it that you need to consider before upgrading your PostgreSQL server.
4. What are the options you have available to help you upgrade your PostgreSQL server.
5. What are the solutions available to minimize the downtime during upgrades.
6. A list of parameters you need to consider in particular when upgrading PostgreSQL to 10 or 11.

Building PostgreSQL as an Enterprise Grade Setup Using Open Source Tools

"I migrated from a proprietary database software to PostgreSQL. I am curious to know whether I can get the same features I used to have in the proprietary database software."

The market coined the term "enterprise grade" or "enterprise ready" to differentiate products and service offerings for licensed database software. For example, there may be a standard database software or an entry-level package that delivers the core functionality and basic features. Likewise, there may be an enterprise version, a more advanced package which goes beyond the essentials to include features and tools indispensable for running critical solutions in production. With such a differentiation found in commercial software, we may wonder whether a solution built on top of an open source database like PostgreSQL can satisfy all the enterprise requirements.

So, in this talk, we shall discuss how you can build an Enterprise Grade PostgreSQL using open source solutions.

We'll discuss a list of Enterprise-grade features that include -
1. Securing your PostgreSQL database cluster
2. High Availability for your PostgreSQL setup
3. Preparing a Backup strategy and the tools available to achieve it
4. Scaling PostgreSQL using connection poolers and load balancers
5. Tools/extensions available for your daily DBA life and detailed logging in PostgreSQL.
6. Monitoring your PostgreSQL and real-time analysis.

High Availability and Automatic Failover in PostgreSQL on Kubernetes, On-premise and Cloud

PostgreSQL is an advanced open source database that is completely community driven. Continuous development and performance improvements, while maintaining a secondary focus on Oracle compatibility, gave PostgreSQL a great market penetration. When a database server is deployed in production, we often wish to achieve several 9's of availability. Is that even possible with PostgreSQL? What is the combination of tools that you could combine and implement to achieve High Availability (HA) and automatic failover in PostgreSQL? How can we avoid data loss during such failovers? We'll address these questions and then some more in this talk.

We are going to discuss **
1. How the implementation of HA differs for each type of replication available in PostgreSQL.
2. How to combine HAproxy with etcd plus a detailed explanation of the RAFT Algorithm and HA using Patroni.
3. How to combine repmgr with keepalived to achieve HA.
4. HA solution built for PostgreSQL on kubernetes.
5. What are the tools and solutions that help you achieve automatic failover in AWS and other cloud-based environments.
6. How to avoid huge data loss during failover.

Monitoring PostgreSQL with Percona Monitoring and Management (PMM)

Learn how to monitor PostgreSQL using Percona Monitoring and Management (PMM) so that you can:
* gain greater visibility of performance and bottlenecks PostgreSQL
* Consolidate your PostgreSQL servers into the same monitoring platform you already use for MySQL and MongoDB
* Respond more quickly and efficiently in Severity 1 issues
We'll show how using PMM's native support for PostgreSQL that you can have PostgreSQL integrated in only minutes!

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