80后大叔爱学习

kafka-sentry权限生产者、消费者测试

sentry消费权限不够解决方法

Sentry权限管理hive、hue、hdfs等

cloudera manager console实战flume采集kafka数据

freeIPA用户团队权限规划

cdh必要服务添加，hdfs、yarn、hbase做高可用配置

VM三台虚拟机配置hadoop分布式，还是有部分人操作遇到问题，特分享，尤其是初学者，希望把精力放到重点上面，资源里面有免费的pdf文档分享0积分下载

对错对比

package kafkaproducer;public class Data { public String user; public String activity; public long timeStramp; public int pageViews; public String typeP; public String city; public Data() { } public Data(String user,.

package kafkaproducer;public class Data { public String user; public String activity; public long timeStramp; public int pageViews; public String typeP; public String city; public Data() { } public Data(String user,.

package kafkaproducer;import com.alibaba.fastjson.JSON;import org.apache.flink.api.common.serialization.SimpleStringSchema;import org.apache.flink.streaming.api.datastream.DataStreamSource;import org.apache.flink.streaming.api.environment.StreamExec.

在diea里面跑spark程序发生jar包冲突，kafka的LZ4版本屏蔽掉

常见问题

因为reducedList是java.util.HashMap, 没有foreach方法, 所以需要将其转换为Scala的集合类型,因此需要在代码中加入如下内容(Scala支持与Java的隐式转换),import scala.collection.JavaConversions._ ...

删除zoo.cfg里面配置dataDir=日志存储路径中version-2，即可解决

a1.sources = r1a1.sinks = k1a1.channels = c1a1.sources.r1.type = avroa1.sources.r1.bind = mastera1.sources.r1.port = 44444a1.sinks.k1.type = org.apache.flume.sink.kafka.KafkaSinka1.sinks.k1.k...