There as well exists a Zeroconf implementation called Howl and I am pretty certain that some other projects are using that name too.
Cheers Daniel On Sun, Feb 13, 2011 at 6:57 PM, Mohammad Nour El-Din <nour.moham...@gmail.com> wrote: > Good catch, but allow me to disagree with you. Howl here is a name, > while OW2 HOWL is an acronym for "High-speed ObjectWeb Logger" and on > [1] it is all written in capital letters. > > [1] - http://howl.ow2.org/ > > On Sun, Feb 13, 2011 at 5:52 PM, Brian McCallister <bri...@skife.org> wrote: >> The proposal looks fine, but the name collides with http://howl.ow2.org/ >> >> -Brian >> >> On Thu, Feb 10, 2011 at 1:37 PM, Alan Gates <ga...@yahoo-inc.com> wrote: >>> I would like to propose Howl as an Apache Incubator project. Howl is a >>> table and storage management service for data created using Apache Hadoop. >>> The proposal is on the Incubator wiki at >>> http://wiki.apache.org/incubator/HowlProposal and is pasted below. Thanks. >>> >>> Alan. >>> >>> == Abstract == >>> Howl is a table and storage management service for data created using Apache >>> Hadoop. >>> >>> == Proposal == >>> The vision of Howl is to provide table management and storage management >>> layers for Apache Hadoop. This includes: >>> * Providing a shared schema and data type mechanism. >>> * Providing a table abstraction so that users need not be concerned with >>> where or how their data is stored. >>> * Providing interoperability across data processing tools such as Pig, Map >>> Reduce, Streaming, and Hive. >>> >>> == Background == >>> Data processors using Apache Hadoop have a common need for table management >>> services. The goal of a table management service is to track data that >>> exists in a Hadoop grid and present that data to users in a tabular format. >>> Such a table management service needs to provide a single input and output >>> format to users so that individual users need not be concerned with the >>> storage formats that are chosen for particular data sets. As part of having >>> a single format, the data will need to be described by one type of schema >>> and have a single datatype system. >>> >>> Additionally, users should be free to choose the best tools for their use >>> cases. The Hadoop project includes Map Reduce, Streaming, Pig, and Hive, >>> and additional tools exist such as Cascading. Each of these tools has users >>> who prefer it, and there are use cases best addressed by each of these >>> tools. Two users on the same grid who need to share data should not be >>> constrained to use the same tool but rather should be free to choose the >>> best tool for their use case. A table management service that presents data >>> in the same way to all of the tools can alleviate this problem by providing >>> interfaces to each of the data processing tools. >>> >>> There are also a few other features a table management service should >>> provide, such as notification of when data arrives. >>> >>> A couple of developers at Yahoo! started the project. It is based on the >>> Hive !MetaStore component. There is good amount of interest in such a >>> service expressed from Yahoo!, Facebook, !LinkedIn, and, others. We are >>> therefore proposing to place Howl in the Apache incubator and to build an >>> open source community around it. >>> >>> >>> == Rationale == >>> There is a strong need for a table management service, especially for large >>> grids with petabytes of data, and where the data volume is increasing by the >>> day. Hadoop users need to find data to read and have a place to store their >>> data. Currently users must understand the location of data to read, the >>> storage format, compression techniques used, etc. To write data they need >>> to understand where on HDFS their data belongs, the best compression format >>> to use, how their data should be serialized, etc. >>> >>> Most users do not want to be concerned with these issues. They want these >>> managed for them. >>> >>> Having it as an Apache Open Source project will highly benefit Howl from the >>> point of view of getting a large community that currently uses Hadoop and >>> the other products built around Hadoop (like Pig, Hive, etc.). Users of the >>> Hadoop ecosystem can influence Howl’s roadmap, and contribute to it. Looking >>> at it in another way, we believe having Howl as part of the Hadoop ecosystem >>> will be a great benefit to the current Hadoop/Pig/Hive community too. >>> >>> == Current Status == >>> === Meritocracy === >>> Our intent with this incubator proposal is to start building a diverse >>> developer community around Howl following the Apache meritocracy model. We >>> have wanted to make the project open source and encourage contributors from >>> multiple organizations from the start. We plan to provide plenty of support >>> to new developers and to quickly recruit those who make solid contributions >>> to committer status. >>> >>> === Community === >>> Howl is currently being used by developers at Yahoo! and there has been an >>> expressed interest from !LinkedIn and Facebook. Yahoo! also plans to deploy >>> the current version of Howl in production soon. We hope to extend the user >>> and developer base further in the future. The current developers and users >>> are all interested in building a solid open source community around Howl. >>> >>> To work towards an open source community, we have started using the !GitHub >>> issue tracker and mailing lists at Yahoo! for development discussions within >>> our group. >>> >>> === Core Developers === >>> Howl is currently being developed by four engineers from Yahoo! - Devaraj >>> Das, Ashutosh Chauhan, Sushanth Sowmyan, and Mac Yang. All the engineers >>> have deep expertise in Hadoop and the Hadoop Ecosystem in general. >>> >>> === Alignment === >>> The ASF is a natural host for Howl given that it is already the home of >>> Hadoop, Pig, HBase, Cassandra, and other emerging cloud software projects. >>> Howl was designed to support Hadoop from the beginning in order to solve >>> data management challenges in Hadoop clusters. Howl complements the existing >>> Apache cloud computing projects by providing a unified way to manage data. >>> >>> == Known Risks == >>> === Orphaned Products === >>> The core developers plan to work full time on the project. There is very >>> little risk of Howl getting orphaned since large companies like Yahoo! are >>> planning to deploy this in their production Hadoop clusters. We believe we >>> can build an active developer community around Howl (companies like Facebook >>> and !LinkedIn have also expressed interest). >>> >>> === Inexperience with Open Source === >>> All of the core developers are active users and followers of open source. >>> Devaraj Das is an Apache Hadoop committer and Apache Hadoop PMC member, and >>> has experience with the Apache infrastructure and development process. >>> Ashutosh Chauhan is an Apache Pig committer and Apache Pig PMC member. >>> Sushanth Sowmyan and Mac Yang made contributions to the Apache Hive and the >>> Apache Chukwa projects. >>> >>> === Homogeneous Developers === >>> The current core developers are all from Yahoo! However, we hope to >>> establish a developer community that includes contributors from several >>> corporations, and we are starting to work towards this with Facebook and >>> !LinkedIn. >>> >>> === Reliance on Salaried Developers === >>> Currently, the developers are paid to do work on Howl. However, once the >>> project has a community built around it, we expect to get committers and >>> developers from outside the current core developers. Companies like Yahoo! >>> are invested in Howl being a solution to the data management problem in >>> Hadoop clusters, and that is not likely to change. >>> >>> === Relationships with Other Apache Products === >>> Howl is going to be used by users of Hadoop, Pig, and Hive. See section >>> Initial Source below for more information about Howl's relationship to Hive. >>> >>> === An Excessive Fascination with the Apache Brand === >>> While we respect the reputation of the Apache brand and have no doubts that >>> it will attract contributors and users, our interest is primarily to give >>> Howl a solid home as an open source project following an established >>> development model. We have also given reasons in the Rationale and Alignment >>> sections. >>> >>> == Documentation == >>> Information about Howl can be found at http://wiki.apache.org/pig/Howl. The >>> following sources may be useful to start with: >>> * The !GitHub site: https://github.com/yahoo/howl >>> * The roadmap: http://wiki.apache.org/pig/HowlJournal >>> >>> == Initial Source == >>> Howl has been under development since Summer 2010 by a team of engineers in >>> Yahoo!. It is currently hosted on !GitHub under an Apache license at >>> https://github.com/yahoo/howl. >>> >>> The initial development of Howl has consisted of: >>> >>> * maintaining a branch of the entire Hive codebase >>> * getting Howl-related patches committed to Hive >>> * developing Howl-specific plugins and wrappers to customize Hive behavior >>> >>> At runtime, Howl executes Hive code for metastore and CLI+DDL, disabling >>> anything related to Hadoop map/reduce execution. It also makes use of the >>> RCFile storage format contained in Hive. >>> >>> This approach was taken as a first step in order to validate the required >>> functionality and get a production version working. However, in the >>> long-term, maintaining a clone of Hive is undesirable. One possible >>> resolution is to factor the metastore+CLI+DDL components out of Hive and >>> move them into Howl (making Hive dependent on Howl). Another possible >>> resolution is to remove the copy of Hive from Howl and do the build/release >>> engineering necessary to make Howl depend on Hive. As part of the >>> incubation process, we plan to work towards resolution of these issues. >>> >>> == External Dependencies == >>> The dependencies all have Apache compatible licenses. >>> >>> == Cryptography == >>> Not applicable. >>> >>> == Required Resources == >>> === Mailing Lists === >>> * howl-private for private PMC discussions (with moderated subscriptions) >>> * howl-dev >>> * howl-commits >>> * howl-user >>> === Subversion Directory === >>> https://svn.apache.org/repos/asf/incubator/howl >>> >>> === Issue Tracking === >>> JIRA Howl (HOWL) >>> >>> === Other Resources === >>> The existing code already has unit tests, so we would like a Hudson instance >>> to run them whenever a new patch is submitted. This can be added after >>> project creation. >>> >>> == Initial Committers == >>> * Devaraj Das >>> * Ashutosh Chauhan >>> * Sushanth Sowmyan >>> * Mac Yang >>> * Paul Yang >>> * Alan Gates >>> A CLA is already on file for Sushanth. >>> >>> == Affiliations == >>> * Devaraj Das (Yahoo!) >>> * Ashutosh Chauhan (Yahoo!) >>> * Sushanth Sowmyan (Yahoo!) >>> * Mac Yang (Yahoo!) >>> * Paul Yang (Facebook) >>> * Alan Gates (Yahoo!) >>> >>> == Sponsors == >>> === Champion === >>> Owen O’Malley >>> >>> === Nominated Mentors === >>> * Olga Natkovich (Pig PMC member and Apache VP for Pig) >>> * Alan Gates (Pig PMC member) >>> * John Sichi (Hive PMC member) >>> >>> === Sponsoring Entity === >>> We are requesting the Incubator to sponsor this project. >>> >>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: general-unsubscr...@incubator.apache.org >>> For additional commands, e-mail: general-h...@incubator.apache.org >>> >>> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: general-unsubscr...@incubator.apache.org >> For additional commands, e-mail: general-h...@incubator.apache.org >> >> > > > > -- > Thanks > - Mohammad Nour > Author of (WebSphere Application Server Community Edition 2.0 User Guide) > http://www.redbooks.ibm.com/abstracts/sg247585.html > - LinkedIn: http://www.linkedin.com/in/mnour > - Blog: http://tadabborat.blogspot.com > ---- > "Life is like riding a bicycle. To keep your balance you must keep moving" > - Albert Einstein > > "Writing clean code is what you must do in order to call yourself a > professional. There is no reasonable excuse for doing anything less > than your best." > - Clean Code: A Handbook of Agile Software Craftsmanship > > "Stay hungry, stay foolish." > - Steve Jobs > > --------------------------------------------------------------------- > To unsubscribe, e-mail: general-unsubscr...@incubator.apache.org > For additional commands, e-mail: general-h...@incubator.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: general-unsubscr...@incubator.apache.org For additional commands, e-mail: general-h...@incubator.apache.org
