Showing Post From Databases

Distributed SQL in 2026: revisit CockroachDB, YugabyteDB and TiDB before you shard or go multi-region

Picture a mutual fund and stockbroking platform in Mumbai (an invented example, not a real client). Its order book and client ledger run on PostgreSQL 16 with Patroni across three VMs in one cloud region, and a rewards service runs on MySQL 8.

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PostgreSQL high availability: revisit Patroni and CloudNativePG before your next failover

Picture a lending company in Bengaluru (an invented example, not a real client). Its loan ledger runs on PostgreSQL 16 across three VMs, managed by Patroni with a three-node etcd cluster and HAProxy in front.

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Vector search in 2026: revisit pgvector, Qdrant, Milvus, Weaviate before you add a vector database

An e-commerce company in Pune runs customer support on PostgreSQL. The database holds about 2 million help articles, product Q&A threads and resolved tickets, in English and a fair amount of Hinglish.

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Prometheus long-term storage: revisit Thanos, Mimir and VictoriaMetrics before you scale

A platform team runs two Prometheus servers per cluster as an HA pair, with 15 days of local retention. In one quarter, three requests arrive: the SRE lead wants a year of history for capacity planning, a product team adds a customer_id label to a request metric, and the auditors ask what happens to metrics when a disk dies.

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PgBouncer and its alternatives: revisit your PostgreSQL connection pooler

A team runs about forty services on Kubernetes against one PostgreSQL primary. During a sale, the autoscaler adds pods, each opens its own pool of ten connections, and PostgreSQL starts refusing logins with “remaining connection slots are reserved”.

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Redis, Valkey, and Dragonfly clients: revisit your connection settings before the next failover

An order service runs on Valkey with Sentinel. At 2 AM the team runs a planned failover before patching the primary.

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