Viewing profile — rkarthik007

Thanks for pointing this out, was not aware of TAPIR. Will take a look, seems pretty interesting.

The difference is in how the regular path (exercised most of the time) vs an edge case when there is a conflict (typically in larger clusters with a pathological access pattern) wo…

This blog post covers the various techniques to sync clocks in general (NTP, GPS clocks / TrueTime, Timestamp Oracle, HLC, etc). CockroachDB uses HLC (hybrid logical clocks), which…

Spanner gets both correctness and low latency from tight synchronization. They do COMMIT_WAIT, meaning wait for the max clock skew to pass. But the max clock skew without TrueTime …

> but AFAIK can do that off-the-shelf today using chrony with hardware timestamping or PTP. No need to invent your own. Actually, the issue is about the max clock skew guarantees (…

When building YugabyteDB, we reuse the "upper half" of PostgreSQL just like Amazon Aurora PostgreSQL and hence support most of the functionality in PG (including advanced ones like…

Hi @catblast, (I am the CTO of Yugabyte) Your points are all completely valid. Just wanted to add my 2 cents. With YugabyteDB specifically, we are more than just PostgreSQL wire-co…

Hi @hkolk, Thanks for your feedback! Not sure when you tried yugabyteDB, but our serializable isolation level and YSQL API (which is needed to exercise serializability) were in bet…

Hi @Nican, sure thing. There are two benchmark workloads, simple inserts and secondary index. The simple inserts workload 50M unique key-values into the database using prepare-bind…

Yup, already done - we dropped it from the title of the post. Our aim was never to misrepresent. Its a difference of opinion on what "Jepsen testing" represents to us - core transa…

We are working on r2dbc, this is currently an active project. We have made good progress so far. If you have a use case or are in guiding the project, please join our community sla…

True for a single node. However, there will be multiple IP address/connections anyway, since YugaByte DB is a distributed DB and it runs across multiple nodes. JDBC drivers connect…

We are working with the R2DBC folks on reactive programming for async/event based use cases as well. This work is just getting kicked off. If interesting, please join our community…

Yes absolutely spot on! Peeling the onion one more layer, there are two underlying features that are required: 1) Move to a threaded model to be able to scale instantaneously. This…

Very astute observation! Two things: * We implemented a feature to share memory between these connection handling processes so that makes it a bit more efficient * Longer term we a…

Would much appreciate some constructive criticism! - CTO/co-founder

Hi @jazoom, Thanks for your comment... had a couple of clarifications. Our take on the open-source licensing of CockroachDB/MongoDB has no implication on the features of these prod…

Yes, we support all types of joins (inner, right included) and indexes. In fact, we recently also enabled stored procedures with plpgsql :) Tuning to perform these efficiently in a…

Thanks for your wishes @nishantvyas! This might help answer some of your questions: https://docs.yugabyte.com/latest/introduction/#what-are-the-... Please look at the trade-offs in…

Hi @kodeblah, True, but note that the comparison only focuses on SQL (as it related to PostgreSQL) features and not any DB-specific features. The YugaByte DB specific pieces are no…

I won't be making that mistake again! (I am talking about "begs the question" vs "raises the question" - no idea about the downvote).

(founder/cto of YugaByte) This is a very insightful suggestion, thanks for raising that! We had considered many of these variants until finally, we concluded that fully open is the…

Hi rekoros, I am the CTO/Founder of YugaByte and author of the above post. Thanks for your comments, glad you liked the post! You make a great point about YugaByte DB using Apache …