newlisp跟踪jobtracker状态

基本思路，通过newlisp定时下载jobtracker页面，用正则表达式解析html中的table元素，然后获得最新的mapreduce的状态。 每次获得状态数据后，存入mysql数据库，然后用tableau将mapreduce集群状态用报表呈现。 这是jobtracker站点的数据 这是Tableau绘制的报

基本思路，通过newlisp定时下载jobtracker页面，用正则表达式解析html中的table元素，然后获得最新的mapreduce的状态。

每次获得状态数据后，存入mysql数据库，然后用tableau将mapreduce集群状态用报表呈现。

这是jobtracker站点的数据

这是Tableau绘制的报表

这样就可以用数据可视化的方式展示Hadoop集群计算的压力状态。

下面是newlisp代码，主要就是用正则表达式解析html,用mysql模块写入数据库。

#!/usr/bin/newlisp
(load "mysql.lsp")

(define (check-args)
  (print "args: ")
  (println (main-args))
  (set 'args-length (length (main-args)))
  (if ((.*)" td) 3))
  (if (find "(.*)" r) 3)
    r))

(define (remove-td tds)
  (set 'result '())
  (dolist (td tds)
    (push (get-number td) result -1)
    )
  result
  )

(define (parse-summary-table table)
  (set 'all-tds (find-all "[\\s\\S]*?" table))
  (set 'all-summary-values (remove-td all-tds))
  )

(define (extract-tables html-content)
  (set 'all-tables (find-all "

]+>[\\s\\S]*?" html-content)) (dolist (table all-tables) (if (extract-summary-table table) (set 'summary-table table)) ) (parse-summary-table summary-table) ) (define (write-summary-to-mysql all-summary-values) (println all-summary-values) (set 'mysql-instance (Mysql)) (println "mysql-instance: " mysql-instance) (set 'mysql-host "10.100.10.10") (set 'mysql-port 3306) (set 'mysql-user "user") (set 'mysql-pwd "123456") (set 'mysql-db "bigdata_data_market") (set 'job-tracker-summary-table "hadoop_job_tracker_summary") (:connect mysql-instance mysql-host mysql-user mysql-pwd mysql-db mysql-port) (:query mysql-instance "SET character_set_client = utf8;") (set 'insert-summary-sql (format "insert into %s (collect_time,running_map_tasks,running_reduce_tasks,total_submissions,nodes,occupied_map_slots,occupied_reduce_slots,reserved_map_slots,reserved_reduce_slots,map_task_capacity,reduce_task_capacity,average_tasks_per_node,blacked_listed_nodes,gray_listed_nodes,exclueded_nodes) values (now(),%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s)" job-tracker-summary-table (all-summary-values 0) (all-summary-values 1) (all-summary-values 2) (all-summary-values 3) (all-summary-values 4) (all-summary-values 5) (all-summary-values 6) (all-summary-values 7) (all-summary-values 8) (all-summary-values 9) (all-summary-values 10) (all-summary-values 11) (all-summary-values 12) (all-summary-values 13))) (println insert-summary-sql) (:query mysql-instance insert-summary-sql) ) ;; main logic starts now (check-args) (parse-args) (access-job-tracker-site) (write-summary-to-mysql all-summary-values) (exit)