| ----- |
| Release Notes for Apache Helix 0.9.4 |
| ----- |
| |
| ~~ Licensed to the Apache Software Foundation (ASF) under one |
| ~~ or more contributor license agreements. See the NOTICE file |
| ~~ distributed with this work for additional information |
| ~~ regarding copyright ownership. The ASF licenses this file |
| ~~ to you under the Apache License, Version 2.0 (the |
| ~~ "License"); you may not use this file except in compliance |
| ~~ with the License. You may obtain a copy of the License at |
| ~~ |
| ~~ http://www.apache.org/licenses/LICENSE-2.0 |
| ~~ |
| ~~ Unless required by applicable law or agreed to in writing, |
| ~~ software distributed under the License is distributed on an |
| ~~ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| ~~ KIND, either express or implied. See the License for the |
| ~~ specific language governing permissions and limitations |
| ~~ under the License. |
| |
| ~~ NOTE: For help with the syntax of this file, see: |
| ~~ http://maven.apache.org/guides/mini/guide-apt-format.html |
| |
| Release Notes for Apache Helix 0.9.4 |
| |
| The Apache Helix team would like to announce the release of Apache Helix 0.9.4. |
| |
| This is the eighteenth release under the Apache umbrella, and the eleventh as a top-level project. |
| |
| Helix is a generic cluster management framework used for the automatic management of partitioned, replicated and distributed resources hosted on a cluster of nodes. |
| |
| In this release, Helix provides several performance improvements for rebalance pipeline: |
| |
| [] |
| |
| * Key Note for Helix Release |
| |
| ** Critical Bug Fixes and Craftsmanship Improvements |
| |
| In this release, we fixed several critical bugs in Helix Controller and rebalancers. There are also several fixes for craftsmanship and usability improvements. |
| |
| [] |
| |
| * Detailed Changes |
| |
| ** Bug Fixes |
| |
| * ZooKeeper and ZNode fixes. |
| |
| * Task Framework fixes for task numAttempts, force-delete of workflows and jobs, proper update of JobContexts, etc. |
| |
| * Fix a bug in CustomRebalancer's assignment computation. |
| |
| * Filter out zero-weight instances for partition assignments. |
| |
| * Fix a NPE in Helix Participant's StateModel.reset(). |
| |
| ** Improvements |
| |
| * Make the metric reservoir's sliding window length configurable. |
| |
| * Add a new code style file for IntelliJ. |
| |
| * Fix the typo for the DataPropagationLatencyGuage metric name. |
| |
| [] |
| |
| Cheers, |
| -- |
| The Apache Helix Team |