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Bucket

Consistent Hashing Package for Scalable Data Distribution.

Consistent Hashing was introduced in the year 1997. It’s used in Amazon’s Dynamo DB as a partitioning component. Further, open-source applications such as Apache Cassandra use it for data partitioning. In order to fully understand how it works, please check this guide first.

Documentation

Installation

To add a dependency using Maven, use the following:

<dependency>
    <groupId>com.clivern</groupId>
    <artifactId>bucket</artifactId>
    <version>0.1.0</version>
</dependency>

To add a dependency using Gradle, use the following:

dependencies {
    compile 'com.clivern:bucket:0.1.0'
}

To add a dependency using Scala SBT, use the following:

libraryDependencies += "com.clivern" % "bucket" % "0.1.0"

Usage

Here is a basic example

import com.clivern.bucket.Bucket;
import com.clivern.bucket.ServiceNode;


ServiceNode node1 = new ServiceNode("DC1", "127.0.0.1", 8080);
ServiceNode node2 = new ServiceNode("DC2", "127.0.0.2", 8081);
ServiceNode node3 = new ServiceNode("DC3", "127.0.0.3", 8082);
ServiceNode node4 = new ServiceNode("DC4", "127.0.0.4", 8084);
ServiceNode node5 = new ServiceNode("DC5", "127.0.0.5", 8085);
ServiceNode node6 = new ServiceNode("DC6", "127.0.0.6", 8086);
ServiceNode node7 = new ServiceNode("DC7", "127.0.0.7", 8087);
Bucket<ServiceNode> bucket =
        new Bucket<>(Arrays.asList(node1, node2, node3, node4, node5, node6, node7), 10);

// Get the node used for allocation for something with id 1
ServiceNode node = (ServiceNode) bucket.routeNode("1");
System.out.println(node);

Versioning

For transparency into our release cycle and in striving to maintain backward compatibility, Bucket is maintained under the Semantic Versioning guidelines and release process is predictable and business-friendly.

See the Releases section of our GitHub project for changelogs for each release version of Bucket. It contains summaries of the most noteworthy changes made in each release.

Bug tracker

If you have any suggestions, bug reports, or annoyances please report them to our issue tracker at https://github.com/clivern/bucket/issues

Security Issues

If you discover a security vulnerability within Bucket, please send an email to hello@clivern.com

Contributing

We are an open source, community-driven project so please feel free to join us. see the contributing guidelines for more details.

License

© 2021, Clivern. Released under Apache License, Version 2.0.

Bucket is authored and maintained by @Clivern.