场景:使用Spark Streaming接收Kafka发送过来的数据与关系型数据库中的表进行相关的查询操作: Kafka发送过来的数据格式为:id.name.cityId,分隔符为tab zhangsan lisi wangwu zhaoliu MySQL的表city结构为:id int, name varchar bj sz sh 本案例的结果为:select s.id, s.name, s.cityId, c.name from student s join city c on s.city…
Application ID is application_1481285758114_422243, trackingURL: http://***:4040Exception in thread "main" org.apache.hadoop.mapred.InvalidInputException: Input path does not exist: hdfs://mycluster-tj/user/engine_arch/data/mllib/sample_libsvm_d…
今天在测试spark-sql运行在yarn上的过程中,无意间从日志中发现了一个问题: spark-sql --master yarn // :: INFO Client: Requesting a new application from cluster with NodeManagers // :: INFO Client: Verifying our application has not requested MB per container) // :: INFO Client: Will…