Sasha Vaniachine
Five9, Inc.
Raleigh, North Carolina, United States
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Sasha is an Open Source enthusiast experienced in troubleshooting and resolving scalability issues across the full software stack. In industry and academia, he scaled up data processing from terabytes to petabytes, while minimizing data losses below acceptable level. Early in his career Sasha pioneered deployment of MySQL databases on Virtual Machines. Sasha is a Senior Database Administrator at Five9, an industry-leading provider of cloud contact center solutions.
Area of Expertise
Topics
Debugging Percona XtraDB Cluster Stall
We have two data centers, each with a Percona XtraDB Cluster. The clusters are loosely coupled via asynchronous replication between their head nodes. Such setup assures geo-redundancy well. However, we found that if the same row is changed in both clusters, one of the clusters can stall because of a replication conflict. We describe how we debugged and resolved the PXC-4318 issue in collaboration with Percona.
All Things Open Upcoming
Debugging Percona XtraDB Cluster Stall
7th International School on Big Data
Open-source Columnar Databases
Percona Live Online 2020
Building Data Lake with MariaDB ColumnStore
MariaDB Server Fest Online Conference
Building Relational Data Lake with MariaDB ColumnStore
2019 MariaDB Developers Unconference
MariaDB ColumnStore Scalability and Transactions
2nd International Winter School on Big Data
Big Data Technologies and Data Science Methods in the Higgs Boson Discovery
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