Mirror of Apache Helix

Clone this repo:
  1. e02be4c Upgrade ZooKeeper from 3.9.3 to 3.9.5 by Junkai Xue · 2 days ago master
  2. c928d0b Take back unstarted tasks and handle unavailable instances while a job is FAILING (#3202) by Junkai Xue · 3 days ago
  3. eb5922f Do not schedule new tasks for a job that is FAILING (#3202) by Junkai Xue · 3 days ago
  4. 1677a74 Bump guava to 33.7.2-jre and snappy-java to 1.1.10.9 by Junkai Xue · 3 days ago
  5. 471527c Count watcher events per test and ignore session events in TestZooKeeperConnection (#3208) by Junkai Xue · 4 days ago

Apache Helix

Helix CI Maven Central License codecov.io Flaky Tests Track

Helix Logo

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 -Dmaven.test.skip.exec=true

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

Helix Gateway Service (2.0)

Helix 2.0 adds the Helix Gateway Service, which lets an application join a Helix-managed cluster over gRPC without embedding the Helix library or opening its own ZooKeeper connection. The embedded participant model from 1.x is unchanged and remains fully supported.

Helix 1.x embedded participants compared with the Helix 2.0 Gateway service