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Azureyjt 1fa8a604eb Sharding Pattern (#1056) 
* Create sharding module

* Add Unit Tests

* Fix readme hyperlink

* Fix check-style issue
2019-11-08 08:20:32 +02:00
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src
Sharding Pattern (#1056)
2019-11-08 08:20:32 +02:00
pom.xml
Sharding Pattern (#1056)
2019-11-08 08:20:32 +02:00
README.md
Sharding Pattern (#1056)
2019-11-08 08:20:32 +02:00

README.md

layout: pattern
title: Sharding folder: sharding
permalink: /patterns/sharding/
categories: Other
tags:

  • Java
  • Difficulty-Beginner

Intent

Sharding pattern means divide the data store into horizontal partitions or shards. Each shard has the same schema, but holds its own distinct subset of the data. A shard is a data store in its own right (it can contain the data for many entities of different types), running on a server acting as a storage node.

Applicability

This pattern offers the following benefits:

  • You can scale the system out by adding further shards running on additional storage nodes.
  • A system can use off the shelf commodity hardware rather than specialized (and expensive) computers for each storage node.
  • You can reduce contention and improved performance by balancing the workload across shards.
  • In the cloud, shards can be located physically close to the users that will access the data.

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