What is Logstash?Logstash is a tool that can be used to collect, process and forward events and log messages. Collection is accomplished via number of configurable input plugins including raw socket/packet communication, file tailing and several message bus clients. Once an input plugin has co...【阅读全文】
1.查看正在运行app的信息 ?访问master WEB UI : http://master:8080 ?然后点击Running Applications 下Application ID或者Name查看信息 2.查看运行完成app的信息 ?按照上面在master WEB UI中的操作方法访问 ?会产生报错内容:No event logs were found for this application! To enable event logging, set spark.eventLog.enabled to true and spark.eventLog.dir to the directory to which your event logs are written. 解决办法:按照报错内容 ? (1)在$SPARK_HOME/conf中的创建spark-defaults.conf 然后在spark-defaults.conf中添加如下数据 (2)切换到/tmp/目录下,看有没有spark-events文件夹 经过【阅读全文】