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#filosofia #platão
they should use missiles that are moderately dangerous: we don’t want the competitions they hold against each other to be entirely unalarming, but to inspire them with fear and do something to reveal the brave man and the coward; and the legisla- tor should confer honors or inflict disgrace as appropriate, so as to prepare 831 the whole state to be an efficient fighter in the real struggle that lasts a lifetime. In fact, if anyone is killed in such circumstances, the homicide should be regarded as involuntary, and the legislator should decree that the killer’s hands are clean when once he has been purified according to law. After all, the lawgiver will reflect, even if a few people do die, others who are just as good will be produced to replace them
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Flashcard 3034277612812

Question
Ainda não tem conta? Cadastro-se e teste grátis por 7 dias!
Answer
[default - edit me]

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Login - Faça o login para ter acesso completo ao site - TEC Concursos
Senha de acesso Esqueceu sua senha? Clique aqui para recuperá-la. Não entre no site <span>Ainda não tem conta? Cadastro-se e teste grátis por 7 dias! Ocorreu um erro na requisição, tente executar uma o







DHTs
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Amazon's Dynamo - All Things Distributed
to power parts of our Amazon Web Services, such as S3. We submitted the technology for publication in SOSP because many of the techniques used in Dynamo originate in the operating systems and distributed systems research of the past years; <span>DHTs, consistent hashing, versioning, vector clocks, quorum, anti-entropy based recovery, etc. As far as I know Dynamo is the first production system to use the synthesis of all these techni




Flashcard 3034286787852

Question
DHTs
Answer
todo

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DHTs

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Amazon's Dynamo - All Things Distributed
to power parts of our Amazon Web Services, such as S3. We submitted the technology for publication in SOSP because many of the techniques used in Dynamo originate in the operating systems and distributed systems research of the past years; <span>DHTs, consistent hashing, versioning, vector clocks, quorum, anti-entropy based recovery, etc. As far as I know Dynamo is the first production system to use the synthesis of all these techni







Flashcard 3034289409292

Question
consistent hashing, versioning, vector clocks, quorum, anti-entropy based recovery
Answer
[default - edit me]

statusnot learnedmeasured difficulty37% [default]last interval [days]               
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Amazon's Dynamo - All Things Distributed
wer parts of our Amazon Web Services, such as S3. We submitted the technology for publication in SOSP because many of the techniques used in Dynamo originate in the operating systems and distributed systems research of the past years; DHTs, <span>consistent hashing, versioning, vector clocks, quorum, anti-entropy based recovery, etc. As far as I know Dynamo is the first production system to use the synthesis of all these techniques, and there are quite a few lessons learned from doing so. The paper is mainly a







Flashcard 3034290982156

Question
object versioning
Answer
[default - edit me]

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Amazon's Dynamo - All Things Distributed
available key-value storage system that some of Amazon’s core services use to provide an “always-on” experience. To achieve this level of availability, Dynamo sacrifices consistency under certain failure scenarios. It makes extensive use of <span>object versioning and application-assisted conflict resolution in a manner that provides a novel interface for developers to use. Categories and Subject Descriptors D.4.2 [Operating Systems]: Storage







Bigtable
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Big data showdown: Cassandra vs. HBase | InfoWorld
ularly if that technology is the creation of engineers at Google, a company that should know a thing or two about managing large quantities of data. If you believe that, two Apache database projects -- Cassandra and HBase -- have you covered. <span>Bigtable was originally described in a 2006 Google research publication. Interestingly, that paper doesn't describe Bigtable as a database, but as a "sparse, distributed, persistent multidi




Flashcard 3034297273612

Question
Gossip protocol for internode communications
Answer
[default - edit me]

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Big data showdown: Cassandra vs. HBase | InfoWorld
hus, Cassandra guarantees high availability by allowing multiple seed nodes in a cluster, while HBase guarantees the same via standby master nodes -- one of which will become the new master should the current master fail. Cassandra uses the <span>Gossip protocol for internode communications, and Gossip services are integrated with the Cassandra software. HBase relies on Zookeeper -- an entirely separate distributed application -- to handle corresponding tasks. While HBase