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nikita

HN member
Joined
Tue, Oct 19, 2010, 5:38 AM UTC
HN karma
1,695
Public activity
471 items

About nikita

CEO of Neon Partner at Khosla Ventures Ex CEO of Singlestore I really like database technology

Recent public activity

  1. comment
    Comment #48786631

    If you product is CDC based (peerdb) you don’t want storage to support this :) This architecture is better for OLTP because all maintenance operations are moved to storage AND it h…

  2. comment
    Comment #48786227

    Conversion is async. The whole point is to never deal with CDC which is error prone and taxing Postgres with occupying a replication slot and burning memory and cpu in the OLTP sys…

  3. comment
    Comment #48786156

    Recent data plus working set is always in Postgres page format. Historical data when pushed to s3 is in parquet. This happens async - not on the transaction hot path. So older data…

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    Comment #48785859

    Safekeepers keep a window of WAL in Postgres WAL format and doesn’t have an external API. It streams WAL to pageservers and Postgres read replicas

  5. comment
    Comment #48098734

    * Rate limiting on proxy in front of compute fleet * Large tenants are broken up into shards, reducing hotspots * Each shard is throttled to a fixed req/s rate * We do not run page…

  6. comment
    Comment #48088785

    Generally the more throughput the system supports the better. In this case we were hitting limits (btw each operation is many queries of different sizes) and the customer observed …

  7. comment
    Comment #48087538

    Lakebase is referring to the fact that in addition to disaggregated storage s3 is authoritative storage for older data. Since data is on s3 (or lake) you can perform direct to s3 t…

  8. comment
    Comment #48087477

    Lakebase is OLTP.

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    Comment #48086820

    We provide you fully managed Postgres. Lots of our customers use it for lots of small instances of Postgres since using Lakebase is so lightweight. Small and large instances benefi…

  10. comment
    Comment #48086801

    This applies to our storage implementation. In Lakebase architecture storage serves pages and it doesn't always have the most recent version of the page and therefore it reconstruc…

  11. comment
    Comment #48086765

    This specific perf improvement is orthogonal to HA. However generally disaggregating storage makes HA simpler and allows for things like zero downtime patching: https://www.databri…

  12. comment
    Comment #48085908

    I'm a VP on Databricks and former CEO of Neon. Happy to answer performance related or any other questions here.

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  16. comment
    Comment #44138807

    (Neon CEO) Not really. OrioleDB solve the vacuum problem with the introduction of the undo log. Neon gives you scale out storage which is in a way orthogonal to OrielDB. With some …

  17. comment
    Comment #43415381

    One of the services that can replace the fauna service is DocumentDB Postgres plugin (+proxy that is not open sourced yet, but will be shortly). It's available on Azure, but I can …

  18. comment
    Comment #43297793

    This is an exciting project. Few highlights: - Query processor is DuckDB - as long as it translates PG type system to DuckDB typesystem well - it will be very fast. - Data is store…

  19. comment
    Comment #43013527

    The word is it's a serious effort on the part of Microsoft. It's missing a MongoDB wire protocol which they plan to opensource as well. In the meantime it's possible to use FerretD…

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    Comment #42702051

    Oh, that's coming very very soon! London and San Paolo. Def in Q1.

  22. comment
    Comment #42699108

    (neon ceo). What region are you in?

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    Comment #42271045

    I remember having a hard time solving this in my first year of college. This is really impressive. So I have this problem here: given that for positive integers m and n, 0 ≤ x[m + …

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