Download - Hazelcast For Beginners (Paris JUG-1)
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Emrah Kocaman
Software Engineer @ Hazelcastemrahkocaman
Martin Black
Regional Sales Director @ [email protected]
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http://www.zenika.com/formation-hazelcast-essentials.html
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Hazelcast For Beginners
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What is Hazelcast?Hazelcast DemoHazelcast Data DistributionHazelcast FeaturesQ/A Session
Agenda
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what is ?
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“Hazelcast is In-Memory Data Grid (IMDG) Solution”
010011010101010
In Memory Data Computing
In Memory Data Messaging + + In Memory
Data Storage
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an open-source project
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an open-source projectleading open-source in-memory
data grid.Apache 2 Licensedead simple distributed programminglightweight w/o any dependencybuilt with in Istanbul
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Hazelcast Inc.Hazelcast EnterpriseSupport ContractsTraining / ConsultingOffices in Istanbul & Ankara (Engineering) , Palo Alto(HQ+Sales) and London(Sales)
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“Hazelcast is a java library to create distributed applications”
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What are the main features of Distributed Applications?
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• Scalability
What are the main features of Hazelcast?
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• Scalability
• Speed
What are the main features of Hazelcast?
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MemoryGetting cheaper and faster
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Reference : http://www.statisticbrain.com/average-historic-price-of-ram/
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• Scalability
• Speed
• Simplicity
What are the main features of Distributed Applications?
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Hazelcast is simple!
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IT’S DEMO TIME
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<backup-count>1</backup-count>
max backup count is 6
Backups increase memory usage since they are also kept in memory.
Data Backup
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DATA PARTITIONING
With 4 cluster nodes every server holds1/4 real data and 1/4 of backups
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Rebalance Data on New Node
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Distributed Maps
Fixed number of partitions (default 271)Each key falls into a partitionpartitionId = hash(keyData)%PARTITION_COUNTPartition ownerships are reassigned upon membership change
A B C
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New Node Added
DA B C
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Migration
DA B C
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Migration
DA B C
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Migration
DA B C
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Migration
DA B C
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Migration
DA B C
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Migration
DA B C
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Migration Complete
DA B C
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Data Safety when Node Dies
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Node Crashes
DA B C
Crash
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Backups Are Restored
DA B C
Crash
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Backups Are Restored
DA B C
Crash
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Backups Are Restored
DA B C
Crash
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Backups Are Restored
DA B C
Crash
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Backups Are Restored
DA B C
Crash
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Backups Are Restored
DA B C
Crash
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Backups Are Restored
DA B C
Crash
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Backups Are Restored
DA B C
Crash
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Recovery Is Complete
DA C
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Client/Server Architecture
Embedded Architecture
Deployment Options
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Great for early stages of rapid application development and iteration
Necessary for scale up or scale out deployments – decouples upgrading of clients and cluster for long term TCO
Embedded Hazelcast
Hazelcast Node 1
Applications
Java API
Client-Server Mode
Hazelcast Node 3
Java API
Applications
Java API
Applications
Java API
Applications
Hazelcast Node 2
Hazelcast Node 1
Hazelcast Node 2
Applications
Java API
Hazelcast Node 3
Applications
Java API
Deployment Options
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Multicast (default)
TCP/IP
AWS
Networking Options
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Hazelcast Features
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Data Store Features Java Collection API: Map, List, Set, Queue
JCache
High Density Memory Store
Hibernate 2nd Level Cache
Web Session Replication: Tomcat, Jetty
Predicate API: Indexes, SQL Query
Persistence: Map/Queue Store & Loader. Write Behind/Through
Eviction
Near Cache
Transactions: Local & XA
WAN Replication
Memcached Interface
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Distributed Computing Features
Java Concurrency API (Lock, Semaphore, AtomicLong, AtomicReference, Executor Service, Blocking Queue)
Entry and Item Listeners
Entry Processor
Aggregators
Map/Reduce
Data Affinity
Continues Query
Map Interceptors
Delta Update
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Distributed Messaging Features
Queue
Topic (Pub/Sub)
Event Listeners
Ring Buffers
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Spring Cache ManagerHibernate 2nd Level Cache ProviderWeb Session ReplicationOSGI Support
Hazelcast Integration Modules
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Management Center (free up to 2 nodes)High-Density MemoryTomcat/Jetty Session ReplicationEnterprise WAN ReplicationSecurityNative Clients (.NET/C++)
Hazelcast Enterprise Features
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http://www.zenika.com/formation-hazelcast-essentials.html
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