https://www.youngju.dev/blog 천천히 올바르게. AI Researcher & DevOps Engineer Youngju's tech blog. GPU/CUDA, LLM, MLOps, Kubernetes AI workloads, distributed training, and data engineering. ko fjvbn2003@gmail.com (Youngju Kim) fjvbn2003@gmail.com (Youngju Kim) Fri, 15 May 2026 00:00:00 GMT https://www.youngju.dev/blog/culture/2026-05-15-time-series-databases-2026-timescaledb-influxdb-3-questdb-clickhouse-victoriametrics-deep-dive.en https://www.youngju.dev/blog/culture/2026-05-15-time-series-databases-2026-timescaledb-influxdb-3-questdb-clickhouse-victoriametrics-deep-dive.en The 2026 time-series database map — TimescaleDB (the #1 Postgres extension), InfluxDB 3 (reborn on Apache DataFusion + Arrow), QuestDB (SQL plus fast ingest), ClickHouse (a column store with dominant analytical performance), VictoriaMetrics (Prometheus-compatible and lean), Prometheus + Grafana Mimir (the k8s standard), GreptimeDB (the Rust newcomer), and M3DB / TDengine / OpenTSDB. We cover the four-axis taxonomy of metrics/logs/traces/IoT, Gorilla / ZSTD / Snappy compression strategy, the cardinality-explosion problem, OpenMetrics and OTel standards, and what to pick for each domain — IoT, observability, finance, OLAP. Fri, 15 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) time-seriesdatabasetsdbtimescaledbinfluxdbquestdbclickhousevictoriametricsprometheusmimirgreptimedbm3db2026deep-diveenglish https://www.youngju.dev/blog/culture/2026-05-15-time-series-databases-2026-timescaledb-influxdb-3-questdb-clickhouse-victoriametrics-deep-dive.ja https://www.youngju.dev/blog/culture/2026-05-15-time-series-databases-2026-timescaledb-influxdb-3-questdb-clickhouse-victoriametrics-deep-dive.ja 2026年の時系列DB地図を描く — TimescaleDB（Postgres拡張の筆頭）、InfluxDB 3（Apache DataFusion + Arrowで生まれ変わり）、QuestDB（SQLと高速ingest）、ClickHouse（カラムストアの圧倒的な分析性能）、VictoriaMetrics（Prometheus互換で軽量）、Prometheus + Grafana Mimir（k8sの標準）、GreptimeDB（Rustの新鋭）、そしてM3DB / TDengine / OpenTSDB。メトリクス・ログ・トレース・IoTの4軸分類、Gorilla / ZSTD / Snappy圧縮戦略、カーディナリティ爆発問題、OpenMetrics・OTel標準、そしてIoT・観測・金融・OLAPの各ドメインで何を選ぶか。 Fri, 15 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) time-seriesdatabasetsdbtimescaledbinfluxdbquestdbclickhousevictoriametricsprometheusmimirgreptimedbm3db2026deep-dive日本語 https://www.youngju.dev/blog/culture/2026-05-15-time-series-databases-2026-timescaledb-influxdb-3-questdb-clickhouse-victoriametrics-deep-dive https://www.youngju.dev/blog/culture/2026-05-15-time-series-databases-2026-timescaledb-influxdb-3-questdb-clickhouse-victoriametrics-deep-dive 2026년 시계열 DB 지도를 그린다 — TimescaleDB(Postgres 확장 1위), InfluxDB 3(Apache DataFusion + Arrow로 다시 태어남), QuestDB(SQL + 빠른 ingest), ClickHouse(컬럼 스토어의 압도적 분석 성능), VictoriaMetrics(Prometheus 호환 + 가벼움), Prometheus + Grafana Mimir(k8s 표준), GreptimeDB(Rust 신예), M3DB·TDengine·OpenTSDB. 메트릭/로그/트레이스/IoT 4축 분류, Gorilla·ZSTD·Snappy 압축 전략, 카디널리티 폭발 해법, OpenMetrics·OTel 표준, 그리고 IoT/관찰성/금융/OLAP 각 도메인에서 무엇을 골라야 하는가. Fri, 15 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) time-seriesdatabasetsdbtimescaledbinfluxdbquestdbclickhousevictoriametricsprometheusmimirgreptimedbm3db2026deep-dive