fllink tast test

内置案例

第一种方式，永久集群

bin/flink run ./examples/batch/WordCount.jar
bin/flink run ./examples/batch/WordCount.jar

第二种方式 临时集群

export HADOOP_CLASSPATH=`hadoop classpath`
bin/flink run -m yarn-cluster -yjm 1024 -ytm 1024 ./examples/batch/WordCount.jar
sudo -u hdfs bin/flink run -m yarn-cluster -yjm 1024 -ytm 1024 ./examples/batch/WordCount.jar
sudo -u hdfs hadoop fs -setrep -R 2 /
export HADOOP_CONF_DIR=/etc/hadoop/conf
Permission denied: user=cdh, access=WRITE, inode="/user":hdfs:supergroup:drwxr-xr-x 问题解决
sudo -u hdfs hadoop fs -mkdir /user/cdh
sudo -u hdfs  hdfs dfs -chown cdh:supergroup   /user/cdh