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Hive llap服务安装说明及测试
Hive llap服务安装说明及测试 参考:https://www.cnblogs.com/hdpdriver/p/7642729.html 1.简介说明 从Hive 2.0引入了LLAP(Live Long And Process),2.1进行了比较大的优化,可以说hive已经走向了内存计算, 目 ...
分类:其他好文   时间:2020-06-23 15:26:38    阅读次数:174
设置SSH只允许指定IP才能访问
vim /etc/hosts.allowsshd:192.168.31.109:allow //只允许192.168.31.109登录vim /etc/hosts.denysshd:ALL //开启白名单,只允许192.168.31.109登录systemctl restart sshd ,重启ss ...
分类:其他好文   时间:2020-06-23 13:43:28    阅读次数:195
upload-labs通关记录
upload-labs通关记录 一句话木马解读 一般的解题步骤 或者可以直接用字典爆破一下 https://github.com/TheKingOfDuck/fuzzDicts/blob/master/uploadFileExtDicts/all_upload_fuzz.txt是否上传成功观察:把返 ...
分类:其他好文   时间:2020-06-22 21:12:06    阅读次数:68
Spider_权威指南_ch02_01
# 本节内容: # 解析复杂的 HTML网页: # 1--bs.find() bs.find_all() tag.get_text() # find_all(tag/tag_list,attributes_dict,recursive,text,limit,keywords) # find(tag/ ...
分类:其他好文   时间:2020-06-22 20:59:01    阅读次数:47
After change SessionID data in Session variables is lost
After change SessionID data in Session variables is lost Command "Manager.SaveSessionID" will remove all data of old sessionid. There is only one way ...
分类:其他好文   时间:2020-06-22 19:41:23    阅读次数:85
【leetcode】1466. Reorder Routes to Make All Paths Lead to the City Zero
题目如下: There are n cities numbered from 0 to n-1 and n-1 roads such that there is only one way to travel between two different cities (this network for ...
分类:其他好文   时间:2020-06-22 15:47:54    阅读次数:60
[LeetCode] 1488. Avoid Flood in The City
Your country has an infinite number of lakes. Initially, all the lakes are empty, but when it rains over the nth lake, the nth lake becomes full of wa ...
分类:其他好文   时间:2020-06-22 15:46:01    阅读次数:58
hive sql 优化
常规的: 1、过早的过滤字段、只选用需要的列、要加分区 2、join 小表放左边 set hive.exec.reducers.max=200; set mapred.reduce.tasks= 200; 增大Reduce个数 set hive.groupby.mapaggr.checkinterv ...
分类:数据库   时间:2020-06-22 15:34:57    阅读次数:75
[LeetCode] 950. Reveal Cards In Increasing Order 按递增顺序显示卡牌
In a deck of cards, every card has a unique integer. You can order the deck in any order you want. Initially, all the cards start face down (unreveale ...
分类:其他好文   时间:2020-06-22 13:13:01    阅读次数:57
Linux ANSI转 UTF8
1. 查看文件编码格式 file -i filename 其中 charset=iso-8859-1 就是ansi的文件格式 如何转化为 UTF-8 iconv -f ansi -t utf8 xxxx.csv -o xxxx2.csv 转化后就变为正常显示. 可用于导HIVE前文件格式的转换 ...
分类:系统相关   时间:2020-06-22 13:09:10    阅读次数:102
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