Daria Vilkova
Daria Vilkova Postgres Professional
: December
22 мин

Zabbix Agent 2: new features and how to configure the agent for PostgreSQL monitoring

In Zabbix Server 5.0.1 the PostgreSQL monitoring plugin has become available for Zabbix Agent 2. It was developed by Postgres Professional in collaboration with Zabbix. In the presentation, we will talk about how the plugin works, discuss some options for its configuration, as well as how to add custom metrics to it.


Другие доклады

  • Nikolay Samokhvalov
    Nikolay Samokhvalov Nombox LLC
    45 мин

    Automated database migration testing

    In a heavily-loaded project, any change implies non-zero risks of downtime or performance degradation. We constantly see how system complexity, number of database nodes, deployments per week constantly grow. How grows the level of automatization of various activities in CI/CD pipelines, containers, Kubernetes.

    Meanwhile, when we look at the topic of testing of database changes–from trivial index creation to complex, almost "surgical" operations like converting int4 PK to int8 one in a multi-terabyte database under load–here we observe an obvious lag in technology and methodology development. In the best case, the changes are verified and approved visually, and here it all depends on the level of experience and tiredness of the reviewer.

    In this talk, we will look at how we (Postgres.ai) solve this problem using our solution, Database Lab:

    • instant provisioning of independent thin clones of multi-terabyte databases, ready to be used for testing,
    • integration with existing CI/CD solutions and workflow,
    • collection of metrics that are the most useful for decision support on whether or not each database migration has to be approved (and even fully automated rejection of the most dangerous actions).

  • Иван Чувашов
    Иван Чувашов ООО Calltouch
    45 мин

    Life of DBA in the OKKO online cinema

    Okko is one of the largest legal online cinemas in Russia. Our catalog contains 60 000 movies, cartoons and TV series. Since its starting, the service has been visited by over 20 million users. The monthly audience is 2.8 million people. All these figures speak of a reliable high-load service.

    As DBA, I will mainly talk about databases (PostgreSQL, Cassandra, Redis) that are used in the company. We'll take a closer look at PostgreSQL on the topics of high loads, monitoring, optimization, backup and recovery.

  • Amit Kapila
    Amit Kapila Fujitsu
    45 мин

    What's next in Logical Replication?

    Logical replication has been there since 10.0 and with each release, it is getting better. This talk will start with the basic architecture of Logical replication in PostgreSQL and then cover the various ways in which it can be helpful to users.

    One of the shortcomings of logical replication as compare to physical replication is that currently, it allows the transaction to be replicated only once it is committed. This can create a large apply lag on the subscriber side for long-running transactions. We will discuss the solution implemented for this problem for PostgreSQL.

    We will also discuss the other major work being done in logical replication which is to allow the streaming of transactions at the prepare time. This will help us in implementing conflict-free logical replication. This can be used for scaling-out reads as well. Because of 2PC, we can ensure that on subscribers we have all the data committed on the master. Now, we can design a system where different nodes are owners of some set of tables and we can always get the data of those tables reliably from those nodes, and then one can have some external process that will route the reads accordingly.

    In the end, this will cover the new enhancements, improvements related to Logical Replication in recent PostgreSQL releases.

  • Darafei Praliaskouski
    Darafei Praliaskouski Juno
    22 мин

    PostGIS 3.1 news

    PostGIS is a Spatial Extension to PostgreSQL database. This talk will look like reading the changelog aloud with some comments and real-world usage examples from the core developer.