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Cassandra high availability : harness the power of Apache Cassandra to build scalable, fault-tolerant, and readily available applications / / Robbie Strickland
| Cassandra high availability : harness the power of Apache Cassandra to build scalable, fault-tolerant, and readily available applications / / Robbie Strickland |
| Autore | Strickland Robbie Wells <1948-> |
| Edizione | [1st edition] |
| Pubbl/distr/stampa | Birmingham, [England] : , : Packt Publishing, , 2014 |
| Descrizione fisica | 1 online resource (186 p.) |
| Disciplina | 005.75 |
| Collana | Community Experienced Distilled |
| Soggetto topico | Database management |
| ISBN | 1-78398-913-0 |
| Formato | Materiale a stampa  |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Cover; Copyright; Credits; About the Author; About the Reviewers; www.PacktPub.com; Table of Contents; Preface; Chapter 1: Cassandra's Approach to High Availability; ACID; The monolithic architecture; The master-slave architecture; Sharding; Master failover; Cassandra's solution; Cassandra architecture; Distributed hash table; Replication; Replication across data centers; Tunable consistency; The CAP theorem; Summary; Chapter 2: Data Distribution; Hash table fundamentals; Distributing hash tables; Consistent hashing; The mechanics of consistent hashing; Token assignment
Manually assigned tokensvnodes; How vnodes improve availability; Partitioners; Hotspots; Effects of scaling out using the ByteOrderedPartitioner; A time-series example; Summary; Chapter 3: Replication; The replication factor; Replication strategies; SimpleStrategy; NetworkTopologyStrategy; Snitches; Maintaining the replication factor when a node fails; Consistency conflicts; Consistency levels; Repairing data; Balancing the replication factor with consistency; Summary; Chapter 4: Data Centers; Use cases for multiple data centers; Live backup; Failover; Load balancing; Geographic distribution Online analysisAnalysis using Hadoop; Analysis using Spark; Data center setup; RackInferringSnitch; PropertyFileSnitch; GossipingPropertyFileSnitch; Cloud snitches; Replication across data centers; Setting the replication factor; Consistency in a multiple data center environment; The anatomy of a replicated write; Achieving stronger consistency between data centers; Summary; Chapter 5: Scaling Out; Choosing the right hardware configuration; Scaling out versus scaling up; Growing your cluster; Adding nodes without vnodes; Adding nodes with vnodes; How to scale out; Adding a data center How to scale upUpgrading in place; Scaling up using data center replication; Removing nodes; Removing nodes within a data center; Decommissioning a data center; Other data migration scenarios; Snitch changes; Summary; Chapter 6: High Availability Features in the Native Java Client; Thrift versus the native protocol; Setting up the environment; Connecting to the cluster; Executing statements; Prepared statements; Batched statements; Caution with batches; Handling asynchronous requests; Running queries in parallel; Load balancing; Failing over to a remote data center Downgrading the consistency levelDefining your own retry policy; Token awareness; Tying it all together; Falling back to QUORUM; Summary; Chapter 7: Modeling for High Availability; How Cassandra stores data; Implications of a log-structured storage; Understanding compaction; Size-tiered compaction; Leveled compaction; Date-tiered compaction; CQL under the hood; Single primary key; Compound keys; Partition keys; Clustering columns; Composite partition keys; The importance of the storage model; Understanding queries; Query by key; Range queries; Denormalizing with collections How collections are stored |
| Record Nr. | UNINA-9910787493103321 |
Strickland Robbie Wells <1948->
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| Birmingham, [England] : , : Packt Publishing, , 2014 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Cassandra high availability : harness the power of Apache Cassandra to build scalable, fault-tolerant, and readily available applications / / Robbie Strickland
| Cassandra high availability : harness the power of Apache Cassandra to build scalable, fault-tolerant, and readily available applications / / Robbie Strickland |
| Autore | Strickland Robbie Wells <1948-> |
| Edizione | [1st edition] |
| Pubbl/distr/stampa | Birmingham, [England] : , : Packt Publishing, , 2014 |
| Descrizione fisica | 1 online resource (186 p.) |
| Disciplina | 005.75 |
| Collana | Community Experienced Distilled |
| Soggetto topico | Database management |
| ISBN | 1-78398-913-0 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Cover; Copyright; Credits; About the Author; About the Reviewers; www.PacktPub.com; Table of Contents; Preface; Chapter 1: Cassandra's Approach to High Availability; ACID; The monolithic architecture; The master-slave architecture; Sharding; Master failover; Cassandra's solution; Cassandra architecture; Distributed hash table; Replication; Replication across data centers; Tunable consistency; The CAP theorem; Summary; Chapter 2: Data Distribution; Hash table fundamentals; Distributing hash tables; Consistent hashing; The mechanics of consistent hashing; Token assignment
Manually assigned tokensvnodes; How vnodes improve availability; Partitioners; Hotspots; Effects of scaling out using the ByteOrderedPartitioner; A time-series example; Summary; Chapter 3: Replication; The replication factor; Replication strategies; SimpleStrategy; NetworkTopologyStrategy; Snitches; Maintaining the replication factor when a node fails; Consistency conflicts; Consistency levels; Repairing data; Balancing the replication factor with consistency; Summary; Chapter 4: Data Centers; Use cases for multiple data centers; Live backup; Failover; Load balancing; Geographic distribution Online analysisAnalysis using Hadoop; Analysis using Spark; Data center setup; RackInferringSnitch; PropertyFileSnitch; GossipingPropertyFileSnitch; Cloud snitches; Replication across data centers; Setting the replication factor; Consistency in a multiple data center environment; The anatomy of a replicated write; Achieving stronger consistency between data centers; Summary; Chapter 5: Scaling Out; Choosing the right hardware configuration; Scaling out versus scaling up; Growing your cluster; Adding nodes without vnodes; Adding nodes with vnodes; How to scale out; Adding a data center How to scale upUpgrading in place; Scaling up using data center replication; Removing nodes; Removing nodes within a data center; Decommissioning a data center; Other data migration scenarios; Snitch changes; Summary; Chapter 6: High Availability Features in the Native Java Client; Thrift versus the native protocol; Setting up the environment; Connecting to the cluster; Executing statements; Prepared statements; Batched statements; Caution with batches; Handling asynchronous requests; Running queries in parallel; Load balancing; Failing over to a remote data center Downgrading the consistency levelDefining your own retry policy; Token awareness; Tying it all together; Falling back to QUORUM; Summary; Chapter 7: Modeling for High Availability; How Cassandra stores data; Implications of a log-structured storage; Understanding compaction; Size-tiered compaction; Leveled compaction; Date-tiered compaction; CQL under the hood; Single primary key; Compound keys; Partition keys; Clustering columns; Composite partition keys; The importance of the storage model; Understanding queries; Query by key; Range queries; Denormalizing with collections How collections are stored |
| Record Nr. | UNINA-9910819976303321 |
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Strickland Robbie Wells <1948->
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| Birmingham, [England] : , : Packt Publishing, , 2014 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Codici cifrati [[electronic resource] ] : Arne Beurling e la crittografia nella II guerra mondiale / / by Bengt Beckman
| Codici cifrati [[electronic resource] ] : Arne Beurling e la crittografia nella II guerra mondiale / / by Bengt Beckman |
| Autore | Beckman Bengt |
| Edizione | [1st ed. 2005.] |
| Pubbl/distr/stampa | Milano : , : Springer Milan : , : Imprint : Springer, , 2005 |
| Descrizione fisica | 1 online resource (277 p.) |
| Disciplina | 005.75 |
| Soggetto topico |
Mathematics
History Data structures (Computer science) Computers Number theory Popular works History of Mathematical Sciences History of Science Data Structures and Information Theory History of Computing Number Theory Popular Science, general |
| ISBN |
1-281-11517-7
9786611115173 88-470-0395-4 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | ita |
| Nota di contenuto | Parte 1 -- Un cifrario del XVIII secolo -- La prima macchina cifrante al mondo -- Damm, Hagelin e Gyldén -- Intercettazione di segnali radio e analisi crittografica prima del 1939 -- Guerra -- Entra in scena Arne Beurling -- La flotta russa del Baltico -- Segnali misteriosi -- Telescriventi -- L’analisi di Beurling -- La G-Schreiber e gli “app” -- Crittoanalisi sistematica -- Esce di scena Gyldén, ma ricompare Beurling -- La doppia trasposizione -- Operazione Barbarossa -- Il posto di lavoro -- Contenuti -- La nascita della FRA -- Risultati brillanti, malgrado tutto -- Regressi e fughe di notizie -- L’Armata Rossa e il mare Artico -- Il codice russo a doppia cifratura -- Stella Polaris -- Graduale calo del traffico tedesco -- Borelius fa una visita ai Tedeschi -- Informazioni — Ma quanto valgono? -- Norvegia -- Gli ultimi anni di guerra -- I sistemi crittografici svedesi -- Arne Beurling 1943–1945 -- Parte 2 -- Arne Beurling -- Attraverso gli occhi di una donna -- Una magica amicizia. |
| Record Nr. | UNINA-9910484829403321 |
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Beckman Bengt
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| Milano : , : Springer Milan : , : Imprint : Springer, , 2005 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Come realizzare un sito Web / Louis Kahn , Laura Logan
| Come realizzare un sito Web / Louis Kahn , Laura Logan |
| Autore | Kahn, Louis |
| Pubbl/distr/stampa | [Milano] : Mondadori informatica |
| Descrizione fisica | XXV, 228 p. : ill. ; 24 cm + 1 cd-rom, Sistemi, linguaggi e applicazioni |
| Disciplina | 005.75 |
| Soggetto non controllato |
Microelaboratori elettronici - Sistema operativo Windows NT
World Wide Web |
| ISBN | 88-7131-759-9 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | ita |
| Record Nr. | UNINA-990000157550403321 |
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Kahn, Louis
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| [Milano] : Mondadori informatica | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Come realizzare un sito web / Louis Kahn, Laura Logan
| Come realizzare un sito web / Louis Kahn, Laura Logan |
| Autore | Kahn, Louis, 1967- |
| Pubbl/distr/stampa | [Segrate] : Mondadori Informatica |
| Descrizione fisica | xxv, 228 p. : ill. ; 24 cm. + 1 cd rom |
| Disciplina | 005.75 |
| Altri autori (Persone) | Logan, Laura, 1964-author |
| Soggetto topico |
Web sites
Web servers |
| ISBN | 8871317599 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | ita |
| Record Nr. | UNISALENTO-991000347139707536 |
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Kahn, Louis, 1967-
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| [Segrate] : Mondadori Informatica | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. del Salento | ||
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Come usare il dBase III / L. Barnes
| Come usare il dBase III / L. Barnes |
| Autore | Barnes, Lan |
| Pubbl/distr/stampa | Milano : McGraw-Hill, ©1986 |
| Descrizione fisica | 351 p. : ill. ; 25 cm |
| Disciplina | 005.75 |
| Soggetto non controllato |
Gestione dei database
Programmi per computer |
| ISBN | 88-386-0040-6 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | ita |
| Record Nr. | UNINA-990000455430403321 |
| Barnes, Lan | ||
| Milano : McGraw-Hill, ©1986 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Computer fundamentals and RDBMS [[electronic resource] /] / Smita Vaze, Subhalaxmi Joshi
| Computer fundamentals and RDBMS [[electronic resource] /] / Smita Vaze, Subhalaxmi Joshi |
| Autore | Vaze Smita |
| Edizione | [Rev. ed.] |
| Pubbl/distr/stampa | Mumbai, : Himalaya Pub. House, 2010 |
| Descrizione fisica | 1 online resource (97 p.) |
| Disciplina | 005.75 |
| Altri autori (Persone) | JoshiSubhalaxmi |
| Soggetto topico |
Computers
Database management |
| Soggetto genere / forma | Electronic books. |
| ISBN |
1-282-81285-8
9786612812859 1-4416-7547-7 93-5043-183-1 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto | COVER; CONTENTS; INTRODUCTION TO COMPUTER; CLASSIFICATION OF COMPUTER; FUNCTIONS AND COMPONENTS OF A COMPUTER; INSIDE MEMORY OF COMPUTER; PERIPHERAL DEVICES; WORLD WIDE WEB; DBMS CONCEPTS; DATA MODEL; ENTIlY RELATIONSHIP DIAGRAM - ERD; NORMALIZATION; RDBMS CONCEPTS; SQL - A RELATIONAL DATABASE LANGUAGE; ALPHABETICAL INDEX; REFERENCES |
| Record Nr. | UNINA-9910459683303321 |
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Vaze Smita
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| Mumbai, : Himalaya Pub. House, 2010 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Computer fundamentals and RDBMS [[electronic resource] /] / Smita Vaze, Subhalaxmi Joshi
| Computer fundamentals and RDBMS [[electronic resource] /] / Smita Vaze, Subhalaxmi Joshi |
| Autore | Vaze Smita |
| Edizione | [Rev. ed.] |
| Pubbl/distr/stampa | Mumbai, : Himalaya Pub. House, 2010 |
| Descrizione fisica | 1 online resource (97 p.) |
| Disciplina | 005.75 |
| Altri autori (Persone) | JoshiSubhalaxmi |
| Soggetto topico |
Computers
Database management |
| ISBN |
1-282-81285-8
9786612812859 1-4416-7547-7 93-5043-183-1 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto | COVER; CONTENTS; INTRODUCTION TO COMPUTER; CLASSIFICATION OF COMPUTER; FUNCTIONS AND COMPONENTS OF A COMPUTER; INSIDE MEMORY OF COMPUTER; PERIPHERAL DEVICES; WORLD WIDE WEB; DBMS CONCEPTS; DATA MODEL; ENTIlY RELATIONSHIP DIAGRAM - ERD; NORMALIZATION; RDBMS CONCEPTS; SQL - A RELATIONAL DATABASE LANGUAGE; ALPHABETICAL INDEX; REFERENCES |
| Record Nr. | UNINA-9910785660803321 |
|
Vaze Smita
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||
| Mumbai, : Himalaya Pub. House, 2010 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Computer fundamentals and RDBMS [[electronic resource] /] / Smita Vaze, Subhalaxmi Joshi
| Computer fundamentals and RDBMS [[electronic resource] /] / Smita Vaze, Subhalaxmi Joshi |
| Autore | Vaze Smita |
| Edizione | [Rev. ed.] |
| Pubbl/distr/stampa | Mumbai, : Himalaya Pub. House, 2010 |
| Descrizione fisica | 1 online resource (97 p.) |
| Disciplina | 005.75 |
| Altri autori (Persone) | JoshiSubhalaxmi |
| Soggetto topico |
Computers
Database management |
| ISBN |
1-282-81285-8
9786612812859 1-4416-7547-7 93-5043-183-1 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto | COVER; CONTENTS; INTRODUCTION TO COMPUTER; CLASSIFICATION OF COMPUTER; FUNCTIONS AND COMPONENTS OF A COMPUTER; INSIDE MEMORY OF COMPUTER; PERIPHERAL DEVICES; WORLD WIDE WEB; DBMS CONCEPTS; DATA MODEL; ENTIlY RELATIONSHIP DIAGRAM - ERD; NORMALIZATION; RDBMS CONCEPTS; SQL - A RELATIONAL DATABASE LANGUAGE; ALPHABETICAL INDEX; REFERENCES |
| Record Nr. | UNINA-9910823693703321 |
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Vaze Smita
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| Mumbai, : Himalaya Pub. House, 2010 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Comunicazione, qualità, usabilità / Lorenzo Cantoni, Nicoletta Di Blas, Davide Bolchini ; presentazione di Jakob Nielsen ; introduzione di Paolo Paolini
| Comunicazione, qualità, usabilità / Lorenzo Cantoni, Nicoletta Di Blas, Davide Bolchini ; presentazione di Jakob Nielsen ; introduzione di Paolo Paolini |
| Autore | Cantoni, Lorenzo |
| Pubbl/distr/stampa | Milano : Apogeo, 2003 |
| Descrizione fisica | XXIII, 142 p. ; 22 cm |
| Disciplina | 005.75 |
| Altri autori (Persone) |
Di Blas, Nicolettaauthor
Bolchini, Davide |
| Collana | Cultura digitale |
| Soggetto topico |
Siti web - Progettazione
Siti web - Qualità Siti web - Valutazione |
| ISBN | 9788850321391 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | ita |
| Record Nr. | UNISALENTO-991000243709707536 |
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Cantoni, Lorenzo
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| Milano : Apogeo, 2003 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. del Salento | ||
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