Add metrics-common, zookeeper-api, helix-common modules (#684)

We want to create a new module called zookeeper-api in order to decouple Helix's ZooKeeper APIs from helix-core. The goal is to enable non-Helix applications to use Helix's ZooKeeper APIs. This change also allows for better modularity and separation of concerns.
461 files changed
tree: ce26ac70a2a963d418666a16b4683a5ad4bdfad8
  1. helix-admin-webapp/
  2. helix-agent/
  3. helix-common/
  4. helix-core/
  5. helix-front/
  6. helix-rest/
  7. metrics-common/
  8. recipes/
  9. scripts/
  10. website/
  11. zookeeper-api/
  12. .gitignore
  13. build
  14. bump-up.command
  15. deploySite.sh
  16. helix-style-intellij.xml
  17. helix-style.xml
  18. hpost-review.sh
  19. LICENSE
  20. NOTICE
  21. pom.xml
  22. README.md
README.md

Apache Helix

Helix is part of the Apache Software Foundation.

Project page: http://helix.apache.org/

Mailing list: http://helix.apache.org/mail-lists.html

Build

mvn clean install package -DskipTests

WHAT IS HELIX

Helix is a generic cluster management framework used for automatic management of partitioned, replicated and distributed resources hosted on a cluster of nodes. Helix provides the following features:

  1. Automatic assignment of resource/partition to nodes
  2. Node failure detection and recovery
  3. Dynamic addition of Resources
  4. Dynamic addition of nodes to the cluster
  5. Pluggable distributed state machine to manage the state of a resource via state transitions
  6. Automatic load balancing and throttling of transitions