On Mon, Jun 22, 2015 at 10:26 PM Andrew Purtell <apurt...@apache.org> wrote:
> > Pistachio can easily embed computation to the storage layer to achieve > the > > best data locality to improve the computation performance significantly > > which is an innovative model comparing with the normal ways where the > > storage and compute are independent to each other. > > Have you heard of something called Hadoop? > Regardless of whether he has or not - what's your point? The ASF has historically not denied the entry of new projects just because their domain intersects with another project's. > > > On Thu, Jun 18, 2015 at 10:17 AM, Gavin Li <lyo.ga...@gmail.com> wrote: > > > Hi, > > > > I want to propose project Pistachio to enter Apache Incubator. > > > > Below please find the proposal. > > > > Thanks, > > Gavin Li > > > > > > > > = Pistachio = > > > > == Abstract == > > > > Pistachio is a fault-tolerant low latency distributed storage system > which > > enables simple embedding the computation to the storage layer to achieve > > best data locality. It evolves from Yahoo’s global user profile storage > > system. > > > > == Proposal == > > > > Pistachio is a distributed key value store system with fault tolerance > and > > consistency guarantee. It supports multiple local storage engine > including > > in-memory, kyoto cabinet, rocks DB etc. Pistachio is being used as the > user > > profile storage for massive scale global ads products in Yahoo storing > 10+ > > billion user profiles. The performance and reliability has been well > proven > > on production. > > > > Pistachio can easily embed computation to the storage layer to achieve > the > > best data locality to improve the computation performance significantly > > which is an innovative model comparing with the normal ways where the > > storage and compute are independent to each other. > > > > == Background == > > > > Pistachio is originally designed and optimized for Yahoo’s large scale > > global open RTB(real-time bidding) use cases where latency is > critical(the > > whole request needs to be finished within 100ms including network round > > trips). It stores 10+ billion user profiles in 8 data centers. > > > > Then because of the great performance and the flexibility of local > storage > > choices, we evolved it to do distributed compute. Rich call back > interfaces > > are added to supports easy compute directly on top of the storage system > > local to the data partition. This model is totally different from the > > traditional distributed computation model where the storage and compute > are > > separated and independent. In the new model we found data locality can be > > improved significantly and lots of data access round trips can be reduced > > in computation, and the performance can be improved significantly. > > > > It was publicly announced in April 2015 and currently being hosted in > > Github. > > > > == Rationale == > > > > As a key value store system Pistachio is unique in terms of low latency > > access with fault tolerance and consistency guarantee. The reliability, > > scalability, fault tolerance and performance has been well proven in > global > > large scale revenue supporting production system in Yahoo. > > > > As a distributed computation system, it’s an innovative model where the > > compute layer is introduced on top of the storage layer natively and > > naturally to optimize the data locality of computation. > > > > Operating the project in “apache way” greatly aligns with the long-term > > vision of this project and can greatly help the development of the > > community. > > > > == Current Status == > > > > Pistachio was open-sourced and announced in April 2015 and currently > being > > hosted in Github, it was mainly being developed by the team from Yahoo > and > > already attracted lots of external developers (20+ watches and forks on > > github). > > > > == Meritocracy == > > > > We plan to build an environment following the Apache meritocracy > > principles. Many companies including Linkedin, GF securities, Microsoft > and > > open source communities like deeplearning4j have already expressed > > interests or accepted the invitations to participate in this project. > > > > == Community == > > > > Since the announcement of Pistachio we received lots of interests. And > the > > concept of embedding computation to storage also got lots of > recognitions. > > We also started to work with other communities like deeplearning4j to > build > > more application use cases with Pistachio. We believe the community will > > grow fast. > > > > == Core Developers == > > > > This project is created by Gavin Li. Core developers are currently mainly > > in Yahoo. > > > > == Alignment == > > > > Pistachio depends on many Apache projects and dependencies including > Kafka, > > Helix, Zookeeper, Curator, Apache Commons, etc. > > > > == Known Risks == > > > > === Orphaned Products === > > > > The risk of Pistachio being orphaned is small because Yahoo heavily > > invested in this system. It’s the internal storage standard for Yahoo’s > > global ads products and still being expanded. Migration cost from this > > project is very high. We are also working with external communities like > > deeplearning4j and other companies to expand the applications. > > > > === Inexperience with Open Source === > > > > Core developers are experienced open source contributors in many projects > > including Druid, Spark, Storm, etc. Pistachio committers will be guided > by > > the mentors with strong Apache open source project backgrounds. > > > > === Homogeneous Developers === > > > > The initial committers include developers from several institutions > > including Microsoft, GF Securities, Linkedin and Yahoo. > > > > === Reliance on Salaried Developers === > > > > We work on Pistachio on both salaried time and after hours. Many > developers > > from other institutions already accepted the invitation to volunteer > > working on Pistachio. > > > > === Relationships with Other Apache Products === > > > > As mentioned earlier, Pistachio depends on apache kafka, helix, > zookeeper, > > curator, etc. > > > > === A Excessive Fascination with the Apache Brand === > > > > Generating publicity is not the purpose of this proposal. We mainly want > to > > join the ASF in order to increase our contacts and visibility in the open > > source world to attract great developers. > > > > == Document == > > > > Current documentation can be found here: > > https://github.com/yahoo/Pistachio. > > > > == Initial source == > > > > Initial source can be found here in the Github repo: > > https://github.com/yahoo/Pistachio. > > > > == External dependencies == > > > > To the best of our knowledge, here is the list of dependencies: > > Rocks DB > > ICU4j > > Apache Curator > > netty > > google http client > > codahale.metrics > > apache helix > > apache zookeeper > > apache commons > > apache thrift > > apache kafka > > kyoto cabinet (GNU GPL) > > google protocol buffer > > kryo > > slf4j > > > > To the best of our knowledge, except kyoto cabinet others are all > > distributed under Apache compatible licenses: > > BSD > > ICU > > Apache License 2.0 > > MIT > > > > Kytoto cabinet is under GNU GPL, but it is not a hard necessary > dependency > > to Pistachio, it’s an optional pluggable storage engine. It’s designed in > > the way that it’s totally plugable and very loosely coupled. We can > easily > > remove it in graduation. > > > > == Required Resources == > > > > Mailing Lists > > > > pistachio-user > > pistachio-dev > > pistachio-commits > > pistachio-private (for private PMC discussions) > > > > Git > > > > The Pistachio team prefers Git for source version control: git:// > > git.apache.org/pistachio > > > > Issue Tracking > > > > JIRA Pistachio (PISTACHIO) > > > > Other Resources > > > > Jenkins continuous integration testing > > > > == Initial Committers == > > > > Gavin Li <lyo.gavin at gmail dot com> > > Lie Yang <lyang at yahoo-inc dot com> > > Jay Kim <pitecus at yahoo-inc dot com> > > Flavio Junqueira <fpj at apache dot org> > > Chihong Liang<chihong.liang at gmail dot com> > > Yong Liu<ly7110 at gmail dot com> > > Shengwu Yang <yangshengwu at gmail dot com> > > > > == Affiliations == > > > > Gavin Li - Yahoo > > Flavio Junqueira - Microsoft > > Chihong Liang - GF securities > > Yong Liu - Yingmi Asset Management Corp. > > Lie Yang - Yahoo > > Jay Kim - Yahoo > > Shengwu Yang - Linkedin China > > > > == Sponsors == > > > > === Champion === > > > > Flavio Junqueira <fpj at apache dot org> > > > > === Nominated Mentors === > > > > === Sponsoring Entity === > > > > The Apache Incubator > > > > > > -- > Best regards, > > - Andy > > Problems worthy of attack prove their worth by hitting back. - Piet Hein > (via Tom White) >
