Onyx 0.9.7 正式发布，分布式计算系统

mrbear

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                　　Onyx 0.9.7 正式发布了，Onyx 是一个无中心、支持云、容错的分布式计算系统，使用 Clojure 编写，支持批处理和流处理混合，提供信息模型用于描述和构建分布式工作流。
　　本次发布改进记录如下：

• 　　Bug fix: Fixed suppressed exceptions on with-test-env start up sequence.
  
• 　　Bug fix: Fixed schema merging for task bundles.
  
• 　　Bug fix: Suppress Aeron MediaDriver NoSuchFileException when Aeron cleans up the directory before we do.
  
• 　　Bug fix: Fixed ZooKeeper thread leak bug. #600
  
• 　　Bug fix: Fixed logging statement echoing the number of processed segments.
  
• 　　Bug fix: Only allow peer to write one exhausted input log entry per task. #493
  
• 　　Bug fix: Fixed bug in percentage scheduler that failed to use all available peers due to a rounding error.
  
• 　　Documentation fix: Fixed lifecycles exception description.
  
• 　　Documentation fix: Fixed trigger predicate signature description. #586
  
• 　　Documentation: Added more content to the FAQ section.
  
• 　　Dependency change: Upgraded org.btrplace/scheduler-api to 0.46.
  
• 　　Dependency change: Upgraded org.btrplace/scheduler-choco to 0.46.
  
• 　　Dependency change: Excluded ClojureScript from clj-fuzzy dependencies.
  
• 　　Design change: Implemented peer-group ZooKeeper connection sharing. This reduces the number of ZooKeeper connections required per machine, and improves scheduler performance.
  
• 　　Enhancement: Tasks now time out when being stopped, allowing a peer to be rescheduled in cases where the task is stuck. This is configured via the peer-config :onyx.peer/stop-task-timeout-ms.
  
• 　　Enhancement: A message is now emitted to the logs when a job is submitted, but does not start because of the scheduler gave it no peers.
  

　　下载地址：
　　https://github.com/onyx-platform/onyx/releases/tag/0.9.7