Your schema came from somewhere. Maybe SQL scripts, maybe another developer, maybe your own DDL. Your application uses Mapper.of() for data access, and the workflow is functional. But if your POJO field names don't exactly match your column…
Your high-velocity application processes events fast enough until it doesn't. The bottleneck isn't CPU or memory. It's data movement. Every time event processing requires data from another node, network latency adds milliseconds that compou…
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Apache Ignite is a distributed database for mission-critical high-velocity applications that require in-memory performance. Scale across memory and disk without compromise. Apache Ignite eliminates the trade-off. Speed. Scale. Consistency.
Executives refresh dashboards during board meetings. Customer portals display real-time analytics. API endpoints serve aggregated metrics to partner integrations. The warehouse query takes 30 seconds. Users see spinners instead of insights.…
Get started with Apache Ignite in 5 minutes. Download, install, and execute your first queries. Launch a local cluster and verify topology Execute queries, create tables, manipulate data Use the Table API for record-view or key-value operat…
Your model performed well in training. In production, accuracy drops. The culprit: training/serving skew. Features computed in batch pipelines looked different than features retrieved during inference. The model learned patterns that no lon…
Business decisions wait for data. Run analytics on the production database and transactions queue behind table locks. Replicate to a warehouse and dashboards show yesterday's numbers. The operations team watches real-time metrics lag behind…
Install, configure, and operate Apache Ignite 3 clusters in production environments. Manual installation from binary distribution for Linux, macOS, and Windows. Install through Linux package managers on Debian, Ubuntu, RHEL, and CentOS syst…
Sensors stream millions of readings per minute. A temperature sensor sends negative Kelvin values. A pressure gauge reports data in the wrong units. Schema-less ingestion accepts everything. Analytics pipelines fail hours later when bad dat…
Traffic spikes hit your application. You scale out, but sessions are pinned to specific servers. A node fails and users lose their shopping carts, form progress, authentication state. Sticky sessions worked at small scale but become a liabi…
This guide walks you through creating a Java application that connects to an Ignite 3 cluster, demonstrating key patterns for working with data using Ignite Java API. Create a Docker Compose file to run a three-node Ignite cluster: First, c…