RocketMQ 版本升级，3.6.4升级到5.1.3。

1、2、参考urlhttp://www.zhihu.com/question/21502959

Kerberos

/usr/local/fqlhadoop/hadoop/sbin/hadoop-daemon.sh start namenode/usr/local/fqlhadoop/hadoop/sbin/hadoop-daemon.sh stop namenodehdfs haadmin -DFSHAAdmin -getServiceState n1/usr/local/fqlhadoop/hadoop/s

https://docs.stackstorm.com/chatops/index.html

一、代码#!/usr/bin/pythondef fun1():print("fun1()");if __name__ == "__main__":print __name__print "main()"fun1()二、执行方式对比

#!/usr/bin/pythonimport MySQLdbimport timeconn = MySQLdb.connect(host='localhost',user='root',passwd='123456',charset='utf8')cursor = conn.cursor()conn.select_db('db-yjx');cdate

一、说明HTTP GET请求调用Python脚本Apache服务器环境，Python脚本放置路径：/opt/lampp/cgi-bin二、Python脚本#!/usr/bin/python#coding=utf-8import cgi, cgitbform = cgi.FieldStorage()first_name = form.getvalue('firs

Python与R做数据挖掘http://www.zhihu.com/question/20085299http://bbs.pinggu.org/thread-3078817-1-1.htmlhttp://bbs.pinggu.org/thread-2293669-1-1.html

代码：#!/bin/env pythonimport MySQLdb,MySQLdb.cursorsimport datetimefrom elasticsearch import Elasticsearchfrom elasticsearch import helpersimport sys# start_time = datetime.datetime.strptime('2021-01-01