A single misconfigured rate limit took down my Grafana dashboard during a Prometheus scrape storm. Here's the Traefik RateLimit middleware config that protects services without blocking legitimate traffic. View the complete homelab infrastructure source on GitHub 🐙 Grafana runs on k3s behind…
A long prompt costs more than compute time. It costs memory, and that memory is the KV cache. According to DeepSeek’s V4.1 announcement, its new architecture needs roughly one quarter of the previous generation’s HBM for the cache and one eighth…
How to move LLM calls out of request handlers and into a BullMQ queue: idempotent jobs, Retry-After aware backoff with jitter, worker rate limits, schema-validated model output and a dead-letter queue. Tested TypeScript code. Put LLM calls behind a BullMQ…
I benchmarked a hand-written SKIP LOCKED queue, pg-boss 12 and BullMQ 6 on both Redis and PostgreSQL: enqueue speed, throughput, pickup latency, crash recovery, transactional enqueue and storage per job. If your data is already in PostgreSQL and you run up to…
I measured PostgreSQL 18 LISTEN/NOTIFY against Redis 8 Pub/Sub for delivery latency, fan-out and the cost to the writing transaction, then checked rollbacks, payload limits and disconnects, with a tested Node.js SSE pattern. This is one machine with client…
You can dynamically change the log levels of Hadoop services (such as YARN and HDFS) using the hadoop daemonlog command without needing to restart the services. Setting Hadoop Service Log Levels at Runtime You can dynamically change the log levels…
Dummy data for testing: -- CREATE TABLE sales_table -- ( -- id Int32, -- sale_date Date, -- sales Float64 -- ) -- ENGINE = MergeTree() -- ORDER BY id; --... Dummy data for testing: SQL LAB / Editor Was this page helpful?
ClickHouse integrates seamlessly with a wide range of data sources and tools for ingestion, processing, and visualization. The following table lists supported integrations along with reference documentation for setup and usage. ClickHouse supports reading from and writing to HDFS in…
PikVue - Smart Tech Tool Reviews In-memory databases are the backbone of real-time applications — session stores, caching layers, rate limiters, and leaderboard systems all depend on fast key-value storage. Redis has dominated this space for 15 years, but two challengers have emerged…
The following types of Elasticsearch API keys are available: To create equivalent keys for Elastic Cloud Serverless projects, refer to Serverless project API keys. For Elastic Cloud Serverless projects, you can also create Elastic Cloud API keys that include access…
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