Apache Geode,and Pivotal's leadership role

in open sourcing (Gemfire)

Nitin Lamba

(incubating)

Pivotal’s Open Source strategy

What is Apache Geode?

History

Differentiators

Basic Concepts

Resources

Q & A

Agenda

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3

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In 2015, Pivotal granted the components of its Big Data Suite to open source

6 Million Lines of Code4 new open source communities

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May 2015 Sept 2015

Sept 2015Oct 2015

From GEMFIRE to GEODE…

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A distributed, memory-based data management platform for data oriented apps that need:• high performance, scalability,

resiliency and continuous availability

• fast access to critical data sets• location-aware distributed data

processing• event-driven data architecture

What is GEODE?

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• 1000+ systems in production (real customers)• Cutting edge use cases

Incubating but ROCK solid…

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<2000 2004 2008 2012 2016

Early drivers• Data Volumes• Margins/ transactions• IT maintenance costs • Elasticity needs

Real-time needs• Real-time response• Time to market needs• Flexible Data Models • Persistent+In-memory

Global Data• Visibility across DC• Fast Ingest• Device to enterprise • Uptime (always on)

Open Source!• Apache Incubation• Gemfire > Geode• Geode M1 release• 1st Geode Summit

Financial Services

US DoDTrade Clearing

Travel Portal

Online Gambling

TelcosManufacturing

Auto InsurancePayroll processing

Rail systems

…with both SCALE and SPEED, …

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40KTransactionsper second

3TB Data

in-memory

17B Records

in-memory

120KConcurrent

users

… and impacting a LOT of people!

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China RailwayCorporation

Indian Railways

17%

19%

36%of the world population

High-level Architecture

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Powerful app development kit• APIs: Java & REST• Adapters: Redis, Lucene*, Spark*, …

Multiple persistence options• Filesystem, RDBMS or HDFS*• Sync: read-through, write-through• Async: write-behind

Durable <K,V> cache/ store• Data replicated or partitioned• Redundant storage in-memory/ disk• Flexible data retention policiesÎ

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A Peer-2-Peer in-memory Distributed System

REST

!

* Experimental and waiting community feedback

• Minimize copying

• Minimize contention points

• Run user code in-process

• Partitioning & parallelism

• Avoid disk seeks

• Automated benchmarks

What makes it go FAST?

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• Cache• Region• Member• Client Cache• Persistence• Functions

Let’s talk about a few BASIC CONCEPTS…

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• In-memory storage and management for your data

• Configurable through XML, Java API or CLI

• Collection of Region

What is a CACHE?

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• Distributed java.util.Map on steroids (Key/Value)

• Consistent API regardless of where or how data is stored

• Observable (reactive)

• Highly available, redundant on cache Member (s).

What is a REGION?

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• Local, Replicated or Partitioned

• In-memory or persistent

• Redundant

• LRU

• Overflow

Region: Types & Options

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LOCALLOCAL_HEAP_LRULOCAL_OVERFLOWLOCAL_PERSISTENTLOCAL_PERSISTENT_OVERFLOWPARTITIONPARTITION_HEAP_LRUPARTITION_OVERFLOWPARTITION_PERSISTENTPARTITION_PERSISTENT_OVERFLOWPARTITION_PROXYPARTITION_PROXY_REDUNDANTPARTITION_REDUNDANTPARTITION_REDUNDANT_HEAP_LRUPARTITION_REDUNDANT_OVERFLOWPARTITION_REDUNDANT_PERSISTENTPARTITION_REDUNDANT_PERSISTENT_OVERFLOWREPLICATEREPLICATE_HEAP_LRUREPLICATE_OVERFLOWREPLICATE_PERSISTENTREPLICATE_PERSISTENT_OVERFLOWREPLICATE_PROXY

• Durability

• WAL for efficient writing

• Consistent recovery

• Compaction

Persistent Regions

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Server 1 Server N

• A process that has a connection to the system

• A process that has created a cache

• Embeddable within your application

What is a MEMBER?

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Client

Locator

Server

• A process connected to the Geode server(s)

• Can have a local copy of the data

• Run OQL queries on local data

• Can be notified about events on the servers

What is a CLIENT CACHE?

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Persistence - Shared Nothing

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Server 3Server 2Server 1

Persistence - Shared Nothing

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Server 3Server 2Server 1

B1

B3

B2

B1

B3

B2

Primary

Secondary

Persistence - Shared Nothing

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Server 3Server 2Server 1

B1

B3

B2

B1

B3

B2

Primary

Secondary

Persistence - Shared Nothing

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Server 3Server 2Server 1

B1

B3

B2

B1

B3

B2

Primary

Secondary

Persistence - Shared Nothing

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Server 3Server 2Server 1

B1

B3

B2

B1

B3

B2

Primary

Secondary

B3

B2

Server 1 waits for others when it starts

Persistence - Shared Nothing

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Server 3Server 2Server 1

B1

B3

B2

B1

B3

B2

Primary

Secondary

Fetches missed operations on restart

Persistence - Operational Logs

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Create k1->v1

Create k2->v2

Modifyk1->v3

Create k4->v4

Modify k1->v5

Create k6->v6

Member 1Put k6->v6

Oplog2.crf

Oplog1.crf

Append to operation log

Persistence - Operational Logs: Compaction

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Create k1->v1

Create k2->v2

Modifyk1->v3

Create k4->v4

Modify k1->v5

Create k6->v6

Member 1Put k6->v6

Oplog2.crf

Oplog1.crf

Append to operation log

Copy live data forward

• Used for distributed concurrent processing (Map/Reduce, stored procedure)

• Highly available

• Data oriented

• Member oriented

Functions

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Functions

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• Check out: http://geode.incubator.apache.org

• Subscribe: user-subscribe@geode.incubator.apache.org

• Download: http://geode.incubator.apache.org/releases/

Join the Community!

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Thank you!

Additional Slides

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Built for PERFORMANCE…

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200,000

400,000

600,000

800,000

1,000,000

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YCSB Workloads

Cassandra Geode

…and horizontal, consistent SCALABILITY!

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Horizontal scaling for reads, consistent latency and CPU

0.

4.5

9.

13.5

18.

0.

1.25

2.5

3.75

5.

6.25

2 4 6 8 10

Speedu

p

ServerHosts

speedup latency(ms) CPU%

• Scaled from 256 clients and 2 servers to 1280 clients and 10 servers• Partitioned region with redundancy and 1K data size

High Availability

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