Videos from Percona

Avi Vallarapu talked about Optimizing a PostgreSQL database may be a challenge if some of the important parameters are ignored. And a bigger challenge may be the algorithm behind setting those parameters correctly. In my experience with PostgreSQL Consulting for more than a decade, I have seen a bigger list of parameters that are wrongly set or ignored. This talk details such a list of important PostgreSQL parameters considering the latest...

You have decided you want to deploy your application using Cassandra. What flavor of Cassandra do you want to use? Do you want to do it open source or enterprise? If Enterprise, Datastax or Scylla? On-premise or in the cloud? Self-managed or Cassandra as a service?
In this talk I will discuss:
- The various Cassandra or Cassandra compatible databases including Apache Cassandra, DSE, Scylla, Azure xxx and Yugabyte.
- Self-...

Valeriy Kravchuk talked about while troubleshooting MariaDB server performance problems it is important to find out where the time is spent in the mysqld process, on-CPU and off-CPU. The process of investigation should have as small influence as possible on the server we try to troubleshoot.

Performance_schema introduced in MySQL 5.5 (and inherited from MySQL 5.6 by MariaDB) is supposed to provide detailed enough instrumentation...

MongoDB 4.4 is coming out this summer. We'll preview the changes coming up in the core MongoDB server. If we consider the last 6 major releases it's been quite a hectic ride: Pluggable storage engine API, WiredTiger, client-tunable consistency guarantees, transactions, distributed transactions.