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Apache hadoop goes realtime at Facebook

Dhruba Borthakur, Samuel Rash, Rodrigo Schmidt, Amitanand Aiyer, Jonathan Gray, Joydeep Sen Sarma, Kannan Muthukkaruppan, Nicolas Spiegelberg, Hairong Kuang, Karthik Ranganathan, Dmytro Molkov, Aravind Menon
2011 Proceedings of the 2011 international conference on Management of data - SIGMOD '11  
Facebook recently deployed Facebook Messages, its first ever user-facing application built on the Apache Hadoop platform. Apache HBase is a database-like layer built on Hadoop designed to support billions of messages per day. This paper describes the reasons why Facebook chose Hadoop and HBase over other systems such as Apache Cassandra and Voldemort and discusses the application's requirements for consistency, availability, partition tolerance, data model and scalability. We explore the
more » ... ments made to Hadoop to make it a more effective realtime system, the tradeoffs we made while configuring the system, and how this solution has significant advantages over the sharded MySQL database scheme used in other applications at Facebook and many other web-scale companies. We discuss the motivations behind our design choices, the challenges that we face in day-to-day operations, and future capabilities and improvements still under development. We offer these observations on the deployment as a model for other companies who are contemplating a Hadoop-based solution over traditional sharded RDBMS deployments.
doi:10.1145/1989323.1989438 dblp:conf/sigmod/BorthakurGSMSKRMMRSA11 fatcat:gnicex2fwzbotcpmlaqhz7k2mm

Action-orientated research and framework: insights from the French long-term social-ecological research network

Vincent Bretagnolle, Marc Benoit, Mathieu Bonnefond, Vincent Breton, Jon M. Church, Sabrina Gaba, Daniel Gilbert, François Gillet, Sandrine Glatron, Chloé Guerbois, Nicolas Lamouroux, Marc Lebouvier (+9 others)
2019 Ecology and Society  
Many social-ecological system(SES)-based approaches have been proposed to address environmental problems. Most social-ecological frameworks developed to date, however, lack clear operational linkages between humans and nature to efficiently guide SESs toward resilience. A conceptual framework designed to be operational is therefore necessary, as well as a network of research platforms with which to apply it. We defined explicit coupling processes that can be used as leverages to pilot an SES
more » ... ard sustainability. We proposed to formalize an SES as a dynamic entity composed of two coupling interfaces, i.e., adaptive management and ecosystem services, both set within a landscape context to provide an actionable framework. These interfaces describe the way various actors, including scholars, benefit from and manage complex and changing interactions between the biophysical and social templates. Understanding the key processes underlying the interaction dynamics, especially those leveraging adaptive management processes, would help identify adaptive pathways for practices and collective actions, provide a crucial knowledge base for policy makers, and foster operationality as a requisite of an SES research agenda. Using several examples, we explained why long-term social-ecological research platforms provide an ideal operational network of research infrastructures to conduct place-based action-orientated research targeting the sustainability of SESs.
doi:10.5751/es-10989-240310 fatcat:vpvrc6hx5nc6djryku3ffvo6uq

Handbuch : Fragebogen zur Erfassung der hoffnungsbezogenen Laufbahnressourcen (Hope-Centered Career Inventory, HCCI)

Marc Schreiber, Nicola Schindler, Stefan Spiegelberg
2018
doi:10.21256/zhaw-2657 fatcat:tkrbasxc3bh2tchrbde37bscx4

Page 365 of Philosophy East and West Vol. 2, Issue 4 [page]

1953 Philosophy East and West  
NEWS AND NOTES 365 Frederic Spiegelberg; “Buddhism,” by G. P.  ...  Malalasekera; “Indian Philosophy” and “Vedas, Upanishads and Gita,” by Haridas Chaudhuri; “The Koran,” by Bashir Ahmad Minto; “Philippine Cultural History,” by Nicolas Zafra; “Civilization of Thailand,  ... 

A Note from the Editors

Peter Rizun, Christopher E. Wilmer
2021 Ledger  
The work by Guglielmo Maria Caporale, Alex Plastun, and Viktor Oliinyk, and then later in the year by Giacomo De Nicola, both highlighted potential areas for prediction and exploitation of cryptocurrency  ...  extending beyond finance: one contribution, by Kees Leune, explored the potential application of blockchain technology to the world of electronic voting; another, by Konstantinos Stylianou, Leonhard Spiegelberg  ... 
doi:10.5195/ledger.2021.258 fatcat:ekcgnmmjcnc7rlmya4lytiil6e

Ovarian pregnancy associated with pelvic adhesions

Răzvan Ciortea, Nicolae Costin, Bogdan Chiroiu, Andrei Mălutan, Radu Mocan, Aurora Hudacsko, Adriana Gaia, Carmen Bucuri, Dan Mihu
2013 Clujul Medical  
This case meets the four criteria of Spiegelberg and is interesting because of its rarity and association with adhesions, which makes diagnosis more difficult.  ...  Primary ovarian pregnancy should meet the 4 diagnostic criteria of Spiegelberg: the fallopian tube should be intact; the gestational sac should be in normal ovarian position and connected to the uterus  ...  Taking into consideration the diagnostic algorithm of Spiegelberg in which the ipsilateral uterine tube must be intact, the cases associated with pelvic adhesions or tubal inflammation secondary to ovarian  ... 
pmid:26527922 pmcid:PMC4462474 fatcat:xydyhzdggfhzzfcodhfkizy7ji

Zeitschriftenschau

1917 Orientalistische Literaturzeitung  
*Nicolas Hohlwein, l'ßgypte Romaine; Recueil de papyrus choisis (Carl Wessely). 15. *Otto Weinreich, Triskaidekadische Studien (Martin P. Nilsson).  ...  Roeder, Urkunden zur Religion des alten Aegypten (Spiegelberg). 3. H. Walter Otto, Neues zur Hethiterfrage (zu Weidner, Studien zur hethitischen Sprachwissenschaft). Islam. 1917: B. VH. H. 4.  ... 
doi:10.1524/olzg.1917.20.16.126d fatcat:zmcz42o4yjeqdc5jrsiuutq57e

Page 53 of The Academy and Literature Vol. 84, Issue 2123 [page]

1913 The Academy and Literature  
Two royal poets are discussed, the late Mikado and King Nicolas of Montenegro ; some of the latter’s poems are given, including that on the death of Prince Danilo. November 15.—Dr.  ...  Spiegelberg, Naville, and von Bissing. M. Loisy deals with books on the Odes of Solomon and with Professor Harnack’s work on the open Bible in pre-Reformation times. M. Biovés re- views M.  ... 

Note on the Life and Work of Jean Leclant

Nicolas GRIMAL
2015 La lettre du Collège de France  
He taught there until 1963, perpetuating the tradition of excellence inaugurated by Johannes Dümichen, then Wilhelm Spiegelberg, and maintained, once Alsace had been returned to France, by Pierre Montet  ...  Note on the Life and Work of Jean Leclant Nicolas Grimal Notes de la rédaction Source: La lettre , no. 34, May 2012 Texte intégral 1 It was at primary school in the Rue Robert Estienne, in the  ... 
doi:10.4000/lettre-cdf.2729 fatcat:dsjygni2ona45gleqfyqsn4pbq

Hommage à Jean Leclant (1920-2011)

Nicolas Grimal
2013 Annuaire du Collège de France : Résumé Des Cours et Travaux  
Il y enseigne jusqu’en 1963, poursuivant la tradition d’excellence inaugurée par Johannes Dümichen, puis Wilhelm Spiegelberg, et maintenue, une fois l’Alsace rendue à la France, par Pierre Montet, auquel  ...  Annuaire du Collège de France 2011-2012 Hommage à Jean Leclant (1920-2011) Nicolas Grimal Entrées d’index Mots-clés : égyptologie Texte intégral 1 Jean Leclant est né à Paris, le 8 août 1920.  ... 
doi:10.4000/annuaire-cdf.680 fatcat:mnx75ocr7jeo7e67e6gecivftq

Zeitschriftenschau

1903 Orientalistische Literaturzeitung  
Uebrigens hätte Spiegelberg zum Schluss (Sp. 321) den alten Fehler, die von Hieronymus lateinisch angeführte Uebersetzung des Aquila "ad geniculationem" als 2 Worte zu drucken, nicht wiederholen sollen  ...  Spiegelberg, eine sahidische Version der dormitio Mariae.  ...  Nicola Dareste, droit coutumier des tribus Mi-Schkodrak (per le curé Don Nikola Aschta) Π article. René Basset, Hercule et Mahomet (Uebertragung der Herculesstatue bei Cadix auf Mohammed). Journ.  ... 
doi:10.1524/olzg.1903.6.16.191c fatcat:suqnzgzitfdxne7oztbtezbg24

Histoire de la Seigneurie de Spiegelberg ou des Franches-Montagnes

A. Daucourt
1902 unpublished
La justice, qui se rendait autrefois au château de Spiegelberg s'exerçait maintenant à Saignelégier. Le châtelain de Spiegelberg y résidait.  ...  L'affaire fut terminée en présence de François Wilhelm, vicaire de Saignelégier, du curé du Noirmont, île Nicolas Péquiirnot, etc«..  ... 
doi:10.5169/seals-251571 fatcat:jktbu2ldwndmfdrwwygmx2v7lq

Les armoiries des Franches-Montagnes

Joseph Beuret
1931
La famille de Spiegelberg était donc vassale de l'Evêché.  ...  -Claude de Franquemont portait de gueules à deux bars adossés d'or, tandis que Nicolas de Gilley blasonnait d'argent au chêne arraché au naturel, motif qui se retrouve sur ses monnaies fort rares.  ... 
doi:10.5169/seals-745511 fatcat:weyzbrbiwncftbiirt275wmgva

Histoire de la Seigneurie de Spiegelberg ou des Franches-Montagnes

A. Daucourt
1902 unpublished
Nicolas de Gilley eût soin de rappeler en même temps les services qu'il avait rendus à l'église de Bàie auprès de l'empereur.  ...  Jean s'en excusa sous différents prétextes et Nicolas de Gilley, son père, mourut vers la fin de 1563, sans qu'il y eut reprise de fief.  ... 
doi:10.5169/seals-251625 fatcat:khyaptkztbglflejclzooctccy

Appendix II: European Survey on Anaemia Management Participants and Associates

2000 Nephrology, Dialysis and Transplantation  
Dialcentro, Madrid Jorge, Huesca Dr Nicolás Marigliano Cozzolino, Hospital San Pedro Dra Isabel Vázquez, C. D.  ...  Samara Spiegelberg, Märkische Dialyse- Dr Reinhard Petrik, KfH Bad Neuenahr zentrale im Marienhospital Letmathe, Iserlohn Professor Dr Peter Piazolo, Dialysezentrum, Friedrich- Dr Karl-Otmar Stenger,  ... 
doi:10.1093/ndt/15.suppl_4.64 fatcat:ojhqxwud6fesxmxhry4btxghna
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