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>