Apache Flink 1.4.0 发布了。ApacheFlink 是一个开源的流处理框架，应用于分布式，高性能，始终可用的，准确的数据流应用程序。
此版本更新内容：
Sub-task
Sync Scala and Java Streaming Examples
Add Iterator over State for All Keys in Partitioned State
Refactor the batch Scala-expression Table API tests
Refactor the stream Scala-expression Table API tests
Replace QueryableStateClient keyHashCode argument
Replace QueryableStateClient constructor
Bug
TaskManagersHandler can block web frontend
Fix documentation about determinism of KeySelectors
Remove Hadoop dependencies from ExecutionEnvironment
YARN artifact upload does not work with S3AFileSystem
Cassandra sink can lose messages
HadoopFileSystem (with S3A) may leak connections, which cause job to stuck in a restarting loop
Unable to use Scala's BeanProperty with classes
软件详情：https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12315522&version=12340533
下载地址：https://flink.apache.org/downloads.html
来自:开源中国社区
