Apache Storm 0.9.4 發布，分布式實時計算

Apache Storm 0.9.4 發布了，這是一個維護版本，主要是一些重要的 bug 修復，提升了穩定性和容錯，建議用戶升級。

該版本改進內容包括：

• STORM-559: ZkHosts in README should use 2181 as port.
• STORM-682: supervisor should handle worker state corruption gracefully.
• STORM-693: when kafka bolt fails to write tuple, it should report error instead of silently acking.
• STORM-329: fix cascading Storm failure by improving reconnection strategy and buffering messages
• STORM-130: Supervisor getting killed due to java.io.FileNotFoundException: File '../stormconf.ser' does not exist.

Storm downloads

Downloads for Storm are below. Instructions for how to set up a Storm cluster can be found here.

Source Code

Current source code is hosted on GitHub, apache/storm

Current Release

The current release is 0.9.4. Source and binary distributions can be found below. The list of changes for this release can be found here.

• apache-storm-0.9.4.tar.gz [PGP] [SHA512] [MD5]
• apache-storm-0.9.4.zip [PGP] [SHA512] [MD5]
• apache-storm-0.9.4-src.tar.gz [PGP] [SHA512] [MD5]
• apache-storm-0.9.4-src.zip [PGP] [SHA512] [MD5]

Storm artifacts are hosted in Maven Central. You can add Storm as a dependency with the following coordinates:

groupId: org.apache.storm artifactId: storm-core
version: 0.9.4
  

The signing keys for releases can be found here.Apache Storm 的前身是 推ter Storm 平臺，目前已經歸于 Apache 基金會管轄。

Apache Storm 是一個免費開源的分布式實時計算系統。簡化了流數據的可靠處理，像 Hadoop 一樣實現實時批處理。Storm 很簡單，可用于任意編程語言。Apache Storm 采用 Clojure 開發。

Storm 有很多應用場景，包括實時數據分析、聯機學習、持續計算、分布式 RPC、ETL 等。Storm 速度非常快，一個測試在單節點上實現每秒一百萬的組處理。

目前已經有包括阿里百度在內的數家大型互聯網公司在使用該平臺。

來自：http://www.oschina.net/news/60914/apache-storm-0-9-4