Database

Problem: Production Patroni-managed PostgreSQL 15.17 cluster (Patroni 3.3.2) experienced intermittent performance degradation that caused application delays and connection resets. The environment uses a connection pooler (PGBouncer) fronting ~1,600 read-only connections while the primary accepted ~1,600 direct read-write connections. The team reported long query latencies, mass connection timeouts, and large temporary file creation observed in database […]

Problem: A production Patroni-managed PostgreSQL (community 15.17, Patroni 3.3.2) cluster experienced recurrent nightly performance degradation. Symptoms included large numbers of LWLock wait events and high query latency during night operations reported by the application and visible in the database analytical report. Patroni and PostgreSQL logs were provided for analysis. Operational context: PgBouncer was present as […]

Problem: A production Patroni-managed PostgreSQL 15 cluster experienced periodic heavy queries that threatened availability. An example slow job ran for ~84 seconds and performed a full scan of a 1.8 TB partitioned table (arbor.CDR_DATA) that uses daily partitions starting in early April. Most clients connect through generic application users rather than distinct personal accounts. The […]

Problem: A production Patroni-managed PostgreSQL cluster (PostgreSQL v15.17, Patroni 3.3.2) experienced a primary process abort with SIGABRT during normal operation. Server logs reported that a server process was terminated by signal 6 (Aborted) and that the failed process was executing a COMMIT when the postmaster began terminating other server processes. Subsequent messages showed PostgreSQL could […]

The rapid evolution of generative artificial intelligence has created a significant need for systems that can store and retrieve information with human-like semantic understanding. ChromaDB has emerged as a pivotal technology in this landscape, acting as a specialized storage layer that allows applications to “remember” and reason over vast amounts of unstructured data. By bridging […]

In the era of artificial intelligence and large language models, the ability to process and search through massive amounts of unstructured data has become a competitive necessity. This data includes images, video, and text. Milvus emerges as a leader in this landscape. As an open source vector database, Milvus is specifically designed to manage embedding […]

In modern AI-driven applications, the ability to store, search, and retrieve data based on semantic meaning is increasingly important. From recommendation systems and chatbots to image search and knowledge graphs, organizations rely on vector similarity search to power intelligent features. Weaviate, an open-source vector database, provides a high-performance and scalable solution for storing, indexing, and […]

In an era where data drives innovation, MongoDB has emerged as a leading NoSQL database, perfectly suited for handling complex and unstructured data. With its flexibility, scalability, and developer-friendly architecture, MongoDB has become the go-to database for applications that need to handle large-scale data efficiently in cloud environments. What is MongoDB? MongoDB is an open-source, […]

Managing databases doesn’t have to be complicated, thanks to pgAdmin. This powerful, open-source tool for PostgreSQL database management makes it easier for developers and administrators to handle everything from simple queries to complex data operations. With the rise of data-driven applications, pgAdmin has become a go-to solution for efficient PostgreSQL management. What is pgAdmin? pgAdmin […]