High-Availability Database Clusters – Deployment and Maintenance

At Cirrus, we specialize in designing, deploying, and maintaining highly reliable database clusters. Our solutions are based on open technologies such as MySQL, MariaDB, PostgreSQL, and MongoDB, and their architecture ensures business continuity, data security, and scalability.

Why Choose Database Clusters?

Modern applications and systems demand 24/7 data availability. Any loss of database access means downtime—leading to costs and user dissatisfaction. That’s why we implement clustered solutions that:

  • Provide high availability (HA),

  • Enable real-time data replication,

  • Offer fault tolerance across one or more nodes,

  • Support vertical and horizontal scaling based on your needs.

Our Services

Cluster Architecture Design

We tailor cluster concepts to your specific requirements for availability, performance, and security.

We select optimal topologies: active-active, active-passive, Galera Cluster, Patroni, and sharding strategies.

HA Environment and Replication Setup

We implement synchronous and asynchronous replication using:

  • MariaDB Galera,

  • PostgreSQL Patroni,

  • MySQL Group Replication,

  • MongoDB replicas.

We configure automatic failover, load balancing, and distributed instance management systems.

Operations and Monitoring

We provide continuous cluster health monitoring using tools like Zabbix and Grafana.

We respond to failures, perform zero-downtime updates, and run disaster recovery (DR) tests.

Data Security

We encrypt data at rest and in transit, implement access control policies, and enable auditing mechanisms.

We design both local and remote backup strategies, including integration with solutions such as Proxmox Backup Server.

Migrations and Optimization

We migrate databases between platforms (e.g., from MS SQL, Oracle, or older MySQL versions).

We optimize queries, indexes, and configuration parameters to achieve peak performance.

Technologies We Use

Database Engines:

  • MySQL, MariaDB, PostgreSQL, MongoDB, TimescaleDB, Redis, SQLite (for auxiliary systems)

HA and Replication Mechanisms:

  • Galera Cluster, MySQL Group Replication, Patroni, pg_auto_failover, Streaming Replication, MongoDB Replica Sets

Supporting Tools:

  • HAProxy, Keepalived, Consul, etcD, Zabbix, pgBackRest, Percona Toolkit

Backup and Archiving:

  • Proxmox Backup Server, BorgBackup, Restic, rsync, WAL-G, mysqldump

Your Reliable Data Engine

At Cirrus, we build database environments that simply work—without downtime, without unexpected failures, and with the flexibility to scale as your business grows. Whether you need a cluster in the cloud, on on-premise servers, or in a hybrid model, we will build and maintain it for you.

Contact us – we’ll design a database cluster that meets your needs and withstands any failure.