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brettwooldridge/HikariCP

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光 HikariCP・A solid, high-performance, JDBC connection pool at last.

21 mentions on Hacker News by 19 people: 8 stories, 13 comments · first 2014-02-03 · latest 2025-12-02

Mentions per year 21 mentions · busiest year 2015 (3)
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  1. …was 348 TPS drops to 164 TPS! Tangentially I also highly recommend this article on pool sizing. https://github.com/brettwooldridge/HikariCP/wiki/About-Pool-...
    comment by andersmurphy · 2025-12-02 · in 100k TPS over a billion rows: the unreasonable effectiveness of SQLite
  2. …> I did feel for them here: Thank you! That part was definitely the most frustrating. [1] https://github.com/brettwooldridge/HikariCP
    comment by stopachka · 2025-01-30 · in A major Postgres upgrade with zero downtime
  3. Looks like HikariCP is also awaiting fixes for this https://github.com/brettwooldridge/HikariCP/pull/2055
    comment by tveita · 2024-01-17 · in We switched to Java 21 virtual threads and got a deadlock in TPC-C for Postgres
  4. …to other libraries trying to accomplish the same thing. It is not in the clojure space though. https://github.com/brettwooldridge/HikariCP
    comment by keule · 2022-08-04 · in Art of README (2020)
  5. Related, about sizing DB connection (counterintuitively): https://github.com/brettwooldridge/HikariCP/wiki/About-Pool-...
    comment by wiradikusuma · 2021-01-05 · in Understanding Connections and Pools
  6. …load can be very wasteful of CPU as database load increase, due to the cost of context switching. https://github.com/brettwooldridge/HikariCP/wiki/About-Pool-... dives into that.
    comment by dub · 2020-12-27 · in API pagination design
  7. …of it and reduce number of connections. HikariCP[1] talks about it and is database independent. [1] https://github.com/brettwooldridge/HikariCP/wiki/About-Pool-... Edit: looks like the video in the article is no longer there, but found one…
    comment by takeda · 2019-12-11 · in Odyssey: Scalable PostgreSQL Connection Pooler
  8. …for web applications and can work well even if your pool on application side is misconfigured. [1] https://github.com/brettwooldridge/HikariCP/wiki/About-Pool-...
    comment by takeda · 2019-12-11 · in Odyssey: Scalable PostgreSQL Connection Pooler
  9. …for MySQL" For the curious, HikariCP provides suggested JDBC config for MySQL[1] as well. [1] https://github.com/brettwooldridge/HikariCP/wiki/MySQL-Confi...
    comment by virtualwhys · 2018-11-12 · in About Database Connection Pool Sizing
  10. …pre-reading to this article is Brett Wooldridge's (of HikariCP) article on connection pool sizing: https://github.com/brettwooldridge/HikariCP/wiki/About-Pool-... An important consideration is that increasing the pool size many times above…
    comment by sk5t · 2018-10-15 · in How to Manage Connections Efficiently in Postgres, or Any Database
  11. Comment from HikariCP: https://github.com/brettwooldridge/HikariCP/issues/1040#issu...
    comment by compiotr · 2017-12-06 · in MariaDB quietly releases mariadb/mysql driver-level connection pool
  12. you should replace c3p0 by hikaricp https://github.com/brettwooldridge/HikariCP
    comment by yenda · 2015-12-14 · in Clojure at a Real Estate Portal
  13. …mean a much smaller pool is optimal, to avoid unnecessary context switching, among other things. https://github.com/brettwooldridge/HikariCP/wiki/About-Pool-...
    comment by sk5t · 2015-01-05 · in Now available: auto-scaling PostgreSQL deployments