apache-flink

How can I start the Flink job manager web interface when running Flink from an IDE

由 ☆樱花仙子☆ 提交于 2019-11-27 16:17:43
问题 I would like to access the Flink Web interface when starting it locally from the IDE. I need this because I'd like to access the counters (accumulators) of Flink. 回答1: In order to start the web interface when starting Flink locally, we have to enable the web interface in the FlinkMiniCluster . The FlinkMiniCluster is the class managing the startup of all Flink services locally. Include the dependency: <dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-runtime-web_${scala

What is/are the main difference(s) between Flink and Storm?

由 我只是一个虾纸丫 提交于 2019-11-27 04:56:56
问题 Flink has been compared to Spark, which, as I see it, is the wrong comparison because it compares a windowed event processing system against micro-batching; Similarly, it does not make that much sense to me to compare Flink to Samza. In both cases it compares a real-time vs. a batched event processing strategy, even if at a smaller "scale" in the case of Samza. But I would like to know how Flink compares to Storm, which seems conceptually much more similar to it. I have found this (Slide #4)

java.lang.NoSuchMethodError in Flink

由 时光怂恿深爱的人放手 提交于 2019-11-26 18:01:29
I trying to read the a file using : final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment(); DataSet<String> line = env.readTextFile("file:///pathtofile/myfile.txt"); I get following error: java.lang.NoSuchMethodError: org.apache.flink.api.common.io.DelimitedInputFormat: method <init>(Lorg/apache/flink/core/fs/Path;)V not found I'm using flink version 1.3.2, java version "1.8.0_91" There is a conflict with dependencies. Apache Flink loads many classes by default into its classpath. Please read this article https://ci.apache.org/projects/flink/flink-docs-release-1.3

java.lang.NoSuchMethodError in Flink

由 こ雲淡風輕ζ 提交于 2019-11-26 06:08:48
问题 I trying to read the a file using : final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment(); DataSet<String> line = env.readTextFile(\"file:///pathtofile/myfile.txt\"); I get following error: java.lang.NoSuchMethodError: org.apache.flink.api.common.io.DelimitedInputFormat: method <init>(Lorg/apache/flink/core/fs/Path;)V not found I\'m using flink version 1.3.2, java version \"1.8.0_91\" 回答1: There is a conflict with dependencies. Apache Flink loads many classes by
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