Flink学习笔记——scala shell

Flink也和和spark-shell类似的交互式开发模式

bin/start-scala-shell.sh yarn
Starting Flink Shell:
20/03/14 14:34:07 INFO configuration.GlobalConfiguration: Loading configuration property: jobmanager.rpc.address, localhost
20/03/14 14:34:07 INFO configuration.GlobalConfiguration: Loading configuration property: jobmanager.rpc.port, 6123
20/03/14 14:34:07 INFO configuration.GlobalConfiguration: Loading configuration property: jobmanager.heap.size, 1024m
20/03/14 14:34:07 INFO configuration.GlobalConfiguration: Loading configuration property: taskmanager.memory.process.size, 1568m
20/03/14 14:34:07 INFO configuration.GlobalConfiguration: Loading configuration property: taskmanager.numberOfTaskSlots, 1
20/03/14 14:34:07 INFO configuration.GlobalConfiguration: Loading configuration property: parallelism.default, 1
20/03/14 14:34:07 INFO configuration.GlobalConfiguration: Loading configuration property: jobmanager.execution.failover-strategy, region
20/03/14 14:34:07 INFO cli.FlinkYarnSessionCli: Found Yarn properties file under /tmp/.yarn-properties-lintong.
20/03/14 14:34:07 WARN cli.FlinkYarnSessionCli: The configuration directory ('/home/lintong/software/apache/flink-1.10.0/conf') already contains a LOG4J config file.If you want to use logback, then please delete or rename the log configuration file.

Connecting to Flink cluster (host: localhost, port: 6123).


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              F L I N K - S C A L A - S H E L L

读文件

scala> val dataSet = benv.readTextFile("hdfs://master:8020/user/lintong/logs/test/test.log")
20/03/14 14:49:07 INFO configuration.GlobalConfiguration: Loading configuration property: jobmanager.rpc.address, localhost
20/03/14 14:49:07 INFO configuration.GlobalConfiguration: Loading configuration property: jobmanager.rpc.port, 6123
20/03/14 14:49:07 INFO configuration.GlobalConfiguration: Loading configuration property: jobmanager.heap.size, 1024m
20/03/14 14:49:07 INFO configuration.GlobalConfiguration: Loading configuration property: taskmanager.memory.process.size, 1568m
20/03/14 14:49:07 INFO configuration.GlobalConfiguration: Loading configuration property: taskmanager.numberOfTaskSlots, 1
20/03/14 14:49:07 INFO configuration.GlobalConfiguration: Loading configuration property: parallelism.default, 1
20/03/14 14:49:07 INFO configuration.GlobalConfiguration: Loading configuration property: jobmanager.execution.failover-strategy, region
dataSet: org.apache.flink.api.scala.DataSet[String] = org.apache.flink.api.scala.DataSet@13e5b262

打印

scala> dataSet.print()
20/03/14 14:49:10 INFO java.ExecutionEnvironment: The job has 0 registered types and 0 default Kryo serializers
20/03/14 14:49:11 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
20/03/14 14:49:11 INFO client.RMProxy: Connecting to ResourceManager at master/192.168.2.105:8032
20/03/14 14:49:11 INFO yarn.YarnClusterDescriptor: No path for the flink jar passed. Using the location of class org.apache.flink.yarn.YarnClusterDescriptor to locate the jar
20/03/14 14:49:11 INFO yarn.YarnClusterDescriptor: Found Web Interface master:36441 of application 'application_1584163852090_0002'.
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退出

scala> :q
 good bye ..