发布时间：2015-10-27 14:38:51
[root@ELk bin]# ./logstash -e 'input{stdin{}}output{stdout{codec=>rubydebug}}'aaaaaaa结果：Logstash startup completed{ "message" => "aaaaaaa", "@version" => "1", "@timestamp" => "2015-10-27T06:00:04.615Z", .........【阅读全文】
发布时间：2015-10-27 13:54:33
ELK 包含Logstash+ElasticSearch+Kibana,其官方网站为：https://www.elastic.co/products/logstashJDK版本信息，必须选择1.7以及以上版本的JDK。[root@ELk elk]# java -versionjava version "1.7.0_79"Java(TM) SE Runtime Environment (build 1.7.0_79-b15)Java HotSpot(TM) 64-Bit Server VM (build 24.79-b02, mi.........【阅读全文】
发布时间：2015-10-26 15:51:17
解压scala-2.10.4.tgz到/usr/local/scala目录下[root@Master scala]# pwd/usr/local/scala[root@Master scala]# lsscala-2.10.4 scala-2.10.4.tgz解压spark-1.5.0-bin-hadoop2.6.tgz到/usr/local/spark目录下[root@Master spark]# pwd/usr/local/spark[root@Master spark]# lsspark-1.5.0-bin-ha.........【阅读全文】
发布时间：2015-10-21 15:55:59
在一个终端执行命令：nc -lk 9999当终端输入字符串时候，另一端看不到打印的数据。执行命令：./bin/run-example streaming.NetworkWordCount localhost 999915/10/21 15:06:42 INFO scheduler.JobScheduler: Added jobs for time 1445411202000 ms15/10/21 15:06:43 INFO storage.MemoryStore: ensureFreeSpace(14) call.........【阅读全文】
发布时间：2015-06-20 19:37:25
15. View the Exhibit and examine the data in the CUSTOMERS table. Evaluate the following query: SQL> SELECT cust_name AS "NAME", cust_credit_limit/2 AS MIDPOINT,MIDPOINT+100 AS "MAX LOWER LIMIT" FROM customers; The above query produc.........【阅读全文】
