Apache Flink 1.7.1 发布，开源流处理框架

Apache Flink 1.7.1 已发布，此版本包括27项修复及针对 Flink 1.7.0 的小改进。建议所有用户升级。Apache Flink 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。

Sub-task

• [ FLINK-10252 ] - Handle oversized metric messages

• [ FLINK-10367 ] - Avoid recursion stack overflow during releasing SingleInputGate

• [ FLINK-10522 ] - Check if RecoverableWriter supportsResume and act accordingly.

• [ FLINK-10963 ] - Cleanup small objects uploaded to S3 as independent objects

Bug

• [ FLINK-8336 ] - YarnFileStageTestS3ITCase.testRecursiveUploadForYarnS3 test instability

• [ FLINK-9646 ] - ExecutionGraphCoLocationRestartTest.testConstraintsAfterRestart failed on Travis

• [ FLINK-10149 ] - Fink Mesos allocates extra port when not configured to do so.

• [ FLINK-10359 ] - Scala example in DataSet docs is broken

• [ FLINK-10482 ] - java.lang.IllegalArgumentException: Negative number of in progress checkpoints

• [ FLINK-10566 ] - Flink Planning is exponential in the number of stages

• [ FLINK-10997 ] - Avro-confluent-registry does not bundle any dependency

• [ FLINK-11011 ] - Elasticsearch 6 sink end-to-end test unstable

• [ FLINK-11013 ] - Fix distinct aggregates for group window in Table API

• [ FLINK-11017 ] - Time interval for window aggregations in SQL is wrongly translated if specified with YEAR_MONTH resolution

• [ FLINK-11029 ] - Incorrect parameter in Working with state doc

• [ FLINK-11032 ] - Elasticsearch (v6.3.1) sink end-to-end test unstable on Travis

• [ FLINK-11033 ] - Elasticsearch (v6.3.1) sink end-to-end test unstable on Travis

• [ FLINK-11041 ] - ReinterpretDataStreamAsKeyedStreamITCase.testReinterpretAsKeyedStream failed on Travis

• [ FLINK-11044 ] - RegisterTableSink docs incorrect

• [ FLINK-11045 ] - UserCodeClassLoader has not been set correctly for RuntimeUDFContext in CollectionExecutor

• [ FLINK-11047 ] - CoGroupGroupSortTranslationTest does not compile with scala 2.12

• [ FLINK-11085 ] - NoClassDefFoundError in presto-s3 filesystem

• [ FLINK-11087 ] - Broadcast state migration Incompatibility from 1.5.3 to 1.7.0

• [ FLINK-11094 ] - Restored state in RocksDBStateBackend that has not been accessed in restored execution causes NPE on snapshot

• [ FLINK-11123 ] - Missing import in ML quickstart docs

• [ FLINK-11136 ] - Fix the logical of merge for DISTINCT aggregates

Improvement

• [ FLINK-11080 ] - Define flink-connector-elasticsearch6 uber-jar dependencies via artifactSet

发行说明：

https://flink.apache.org/news/2018/12/21/release-1.7.1.html

下载地址：

https://flink.apache.org/downloads.html

<dependency>
  <groupId>org.apache.flink</groupId>
  <artifactId>flink-java</artifactId>
  <version>1.7.1</version>
</dependency>
<dependency>
  <groupId>org.apache.flink</groupId>
  <artifactId>flink-streaming-java_2.11</artifactId>
  <version>1.7.1</version>
</dependency>
<dependency>
  <groupId>org.apache.flink</groupId>
  <artifactId>flink-clients_2.11</artifactId>
  <version>1.7.1</version>
</dependency>