{"id":"https://openalex.org/W2021060937","doi":"https://doi.org/10.1145/2213836.2213947","title":"Walnut","display_name":"Walnut","publication_year":2012,"publication_date":"2012-05-20","ids":{"openalex":"https://openalex.org/W2021060937","doi":"https://doi.org/10.1145/2213836.2213947","mag":"2021060937"},"language":"en","primary_location":{"id":"doi:10.1145/2213836.2213947","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2213836.2213947","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2012 ACM SIGMOD International Conference on Management of Data","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5100410508","display_name":"Jianjun Chen","orcid":"https://orcid.org/0000-0002-3734-892X"},"institutions":[{"id":"https://openalex.org/I1325784139","display_name":"Yahoo (United Kingdom)","ror":"https://ror.org/038p3gq39","country_code":"GB","type":"company","lineage":["https://openalex.org/I1325784139","https://openalex.org/I4210134091"]},{"id":"https://openalex.org/I4210134091","display_name":"Yahoo (United States)","ror":"https://ror.org/040dkzz12","country_code":"US","type":"company","lineage":["https://openalex.org/I4210134091"]}],"countries":["GB","US"],"is_corresponding":false,"raw_author_name":"Jianjun Chen","raw_affiliation_strings":["Yahoo!, Santa Clara, CA, USA","Yahoo, Santa Clara, CA, USA#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Yahoo!, Santa Clara, CA, USA","institution_ids":["https://openalex.org/I4210134091"]},{"raw_affiliation_string":"Yahoo, Santa Clara, CA, USA#TAB#","institution_ids":["https://openalex.org/I1325784139"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109489961","display_name":"Chris Douglas","orcid":null},"institutions":[{"id":"https://openalex.org/I4210134091","display_name":"Yahoo (United States)","ror":"https://ror.org/040dkzz12","country_code":"US","type":"company","lineage":["https://openalex.org/I4210134091"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Chris Douglas","raw_affiliation_strings":["Yahoo!, Santa Clara, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Yahoo!, Santa Clara, USA","institution_ids":["https://openalex.org/I4210134091"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5023333432","display_name":"Michi Mutsuzaki","orcid":null},"institutions":[{"id":"https://openalex.org/I4210134091","display_name":"Yahoo (United States)","ror":"https://ror.org/040dkzz12","country_code":"US","type":"company","lineage":["https://openalex.org/I4210134091"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Michi Mutsuzaki","raw_affiliation_strings":["Yahoo!, Santa Clara, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Yahoo!, Santa Clara, USA","institution_ids":["https://openalex.org/I4210134091"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5003010833","display_name":"Patrick Quaid","orcid":"https://orcid.org/0000-0001-7318-6350"},"institutions":[{"id":"https://openalex.org/I1325784139","display_name":"Yahoo (United Kingdom)","ror":"https://ror.org/038p3gq39","country_code":"GB","type":"company","lineage":["https://openalex.org/I1325784139","https://openalex.org/I4210134091"]},{"id":"https://openalex.org/I4210134091","display_name":"Yahoo (United States)","ror":"https://ror.org/040dkzz12","country_code":"US","type":"company","lineage":["https://openalex.org/I4210134091"]}],"countries":["GB","US"],"is_corresponding":false,"raw_author_name":"Patrick Quaid","raw_affiliation_strings":["Yahoo!, Sunnyvale, USA","Yahoo!, Sunnyvale, USA#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Yahoo!, Sunnyvale, USA","institution_ids":["https://openalex.org/I4210134091"]},{"raw_affiliation_string":"Yahoo!, Sunnyvale, USA#TAB#","institution_ids":["https://openalex.org/I1325784139"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5051301731","display_name":"Raghu Ramakrishnan","orcid":"https://orcid.org/0009-0007-5086-7664"},"institutions":[{"id":"https://openalex.org/I4210134091","display_name":"Yahoo (United States)","ror":"https://ror.org/040dkzz12","country_code":"US","type":"company","lineage":["https://openalex.org/I4210134091"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Raghu Ramakrishnan","raw_affiliation_strings":["Yahoo!, Santa Clara, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Yahoo!, Santa Clara, USA","institution_ids":["https://openalex.org/I4210134091"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5070183492","display_name":"Sriram Rao","orcid":"https://orcid.org/0000-0002-3265-6165"},"institutions":[{"id":"https://openalex.org/I4210134091","display_name":"Yahoo (United States)","ror":"https://ror.org/040dkzz12","country_code":"US","type":"company","lineage":["https://openalex.org/I4210134091"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Sriram Rao","raw_affiliation_strings":["Yahoo!, Santa Clara, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Yahoo!, Santa Clara, USA","institution_ids":["https://openalex.org/I4210134091"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5087406745","display_name":"Russell Sears","orcid":"https://orcid.org/0009-0003-0828-0430"},"institutions":[{"id":"https://openalex.org/I4210134091","display_name":"Yahoo (United States)","ror":"https://ror.org/040dkzz12","country_code":"US","type":"company","lineage":["https://openalex.org/I4210134091"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Russell Sears","raw_affiliation_strings":["Yahoo!, Santa Clara, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Yahoo!, Santa Clara, USA","institution_ids":["https://openalex.org/I4210134091"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":43,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"743","last_page":"754"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10101","display_name":"Cloud Computing and Resource Management","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10101","display_name":"Cloud Computing and Resource Management","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11181","display_name":"Advanced Data Storage Technologies","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10715","display_name":"Distributed and Parallel Computing Systems","score":0.9973000288009644,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8101427555084229},{"id":"https://openalex.org/keywords/leverage","display_name":"Leverage (statistics)","score":0.64291912317276},{"id":"https://openalex.org/keywords/cloud-computing","display_name":"Cloud computing","score":0.5900831818580627},{"id":"https://openalex.org/keywords/elasticity","display_name":"Elasticity (physics)","score":0.48876166343688965},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"Distributed computing","score":0.4746178686618805},{"id":"https://openalex.org/keywords/key","display_name":"Key (lock)","score":0.45250874757766724},{"id":"https://openalex.org/keywords/computer-data-storage","display_name":"Computer data storage","score":0.44117191433906555},{"id":"https://openalex.org/keywords/throughput","display_name":"Throughput","score":0.4357718527317047},{"id":"https://openalex.org/keywords/associative-array","display_name":"Associative array","score":0.42780566215515137},{"id":"https://openalex.org/keywords/latency","display_name":"Latency (audio)","score":0.42503809928894043},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.41392314434051514},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.08800756931304932}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8101427555084229},{"id":"https://openalex.org/C153083717","wikidata":"https://www.wikidata.org/wiki/Q6535263","display_name":"Leverage (statistics)","level":2,"score":0.64291912317276},{"id":"https://openalex.org/C79974875","wikidata":"https://www.wikidata.org/wiki/Q483639","display_name":"Cloud computing","level":2,"score":0.5900831818580627},{"id":"https://openalex.org/C121854251","wikidata":"https://www.wikidata.org/wiki/Q62932","display_name":"Elasticity (physics)","level":2,"score":0.48876166343688965},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.4746178686618805},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.45250874757766724},{"id":"https://openalex.org/C194739806","wikidata":"https://www.wikidata.org/wiki/Q66221","display_name":"Computer data storage","level":2,"score":0.44117191433906555},{"id":"https://openalex.org/C157764524","wikidata":"https://www.wikidata.org/wiki/Q1383412","display_name":"Throughput","level":3,"score":0.4357718527317047},{"id":"https://openalex.org/C168781493","wikidata":"https://www.wikidata.org/wiki/Q80585","display_name":"Associative array","level":2,"score":0.42780566215515137},{"id":"https://openalex.org/C82876162","wikidata":"https://www.wikidata.org/wiki/Q17096504","display_name":"Latency (audio)","level":2,"score":0.42503809928894043},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.41392314434051514},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.08800756931304932},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.0},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.0},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.0},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/2213836.2213947","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2213836.2213947","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2012 ACM SIGMOD International Conference on Management of Data","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":24,"referenced_works":["https://openalex.org/W26797728","https://openalex.org/W192446467","https://openalex.org/W1524103123","https://openalex.org/W1977797546","https://openalex.org/W1981420413","https://openalex.org/W1984282814","https://openalex.org/W1985229168","https://openalex.org/W2005373714","https://openalex.org/W2029467255","https://openalex.org/W2035735180","https://openalex.org/W2053643516","https://openalex.org/W2087946700","https://openalex.org/W2107460938","https://openalex.org/W2119565742","https://openalex.org/W2119738171","https://openalex.org/W2130923111","https://openalex.org/W2135934107","https://openalex.org/W2143057068","https://openalex.org/W2150013559","https://openalex.org/W2153704625","https://openalex.org/W2173213060","https://openalex.org/W2182688186","https://openalex.org/W4238584892","https://openalex.org/W6686169942"],"related_works":["https://openalex.org/W2787993192","https://openalex.org/W2158269427","https://openalex.org/W4381280689","https://openalex.org/W2058166223","https://openalex.org/W2847365777","https://openalex.org/W2146284271","https://openalex.org/W2412659219","https://openalex.org/W3128025644","https://openalex.org/W3005696751","https://openalex.org/W2393352797"],"abstract_inverted_index":{"Walnut":[0,72],"is":[1,49,73],"an":[2],"object-store":[3],"being":[4],"developed":[5],"at":[6],"Yahoo!":[7],"with":[8,82],"the":[9,52,58,121],"goal":[10],"of":[11,22,57,61,90,98,105],"serving":[12,35,42],"as":[13],"a":[14,20,45,76],"common":[15],"low-level":[16,79],"storage":[17,80],"layer":[18],"for":[19,71,84,111],"variety":[21],"cloud":[23],"data":[24,92,126],"management":[25],"systems":[26],"including":[27],"Hadoop":[28],"(a":[29,33],"MapReduce":[30],"system),":[31,36],"MObStor":[32],"multimedia":[34],"and":[37,54,86,115,119],"PNUTS":[38],"(an":[39],"extended":[40],"key-value":[41],"system).":[43],"Thus,":[44],"key":[46],"performance":[47],"challenge":[48],"to":[50,74,125],"meet":[51],"latency":[53],"throughput":[55],"requirements":[56],"wide":[59],"range":[60],"workloads":[62],"commonly":[63],"observed":[64],"across":[65,88,101],"these":[66],"diverse":[67],"systems.":[68],"The":[69],"motivation":[70],"leverage":[75],"carefully":[77],"optimized":[78],"system,":[81],"support":[83],"elasticity":[85],"high-availability,":[87],"all":[89],"Yahoo!'s":[91],"clouds.":[93],"This":[94],"would":[95],"enable":[96],"sharing":[97],"hardware":[99],"resources":[100],"hitherto":[102],"siloed":[103],"clouds":[104],"different":[106],"types,":[107],"offering":[108],"greater":[109],"potential":[110],"intelligent":[112],"load":[113],"balancing":[114],"efficient":[116],"elastic":[117],"operation,":[118],"simplify":[120],"operational":[122],"tasks":[123],"related":[124],"storage.":[127]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":3},{"year":2017,"cited_by_count":3},{"year":2016,"cited_by_count":5},{"year":2015,"cited_by_count":5},{"year":2014,"cited_by_count":16},{"year":2013,"cited_by_count":6},{"year":2012,"cited_by_count":1}],"updated_date":"2026-07-15T18:14:33.161393","created_date":"2016-06-24T00:00:00"}