Monthly Archives: January 2019

如何导入另一个 Git库到现有的Git库并保留提交记录

https://www.cnblogs.com/huangtailang/p/4730336.html 问题描述: 我在本地有两个Git库项目(D1=PC项目 包含通用项目,D2=移动项目 也包含通用项目这两个项目在同一目录下),因为这两个项目使用的通用项目是一样的如数据库访问等 只有显示层(view)不一样而已,因为在之前没有很好的规划而导致出现现在的问题,即如果D1里更改了通用项目的文件 那么D2需要先将D1通用项目的更改先合并过来然后再处理D2项目(防止出现差异导致出现问题),反之也是一样,所以如果通用项目文件经常更新时,我就需要浪费大量的时间在合并这两个Git仓库上 所以要现在要将把这两个库项目合并到一个库里以分支的方式(D1,D2)进行管理(开发PC项目时切换到D1分支,开发移动项目时切换到D2分支) 然后通用项目分别从D1,D2分支迁移出来到新分支Common单独进行管理,然后D1和D2删除通用项目文件 现在我如何将一个库合并到另一个库呢(提交记录必须不能丢失)?经过几天的测试终于解决 需要解决的问题: ... Read More | Share it now!

STORE output to a single CSV?

To set the number of reducers for all Pig opeations, you can use the default_parallelproperty – but this means every single step will use a single reducer, decreasing throughput:set default_parallel 1; Prior to calling STORE, if one of the... Read More | Share it now!

Split by comma and strip whitespace in Python

I would rather end up with whitespace removed like this: I am aware that I could loop through the list and strip() each item but, as this is Python, I’m guessing there’s a quicker, easier and more elegant way of doing it. Use list... Read More | Share it now!

Avro Schema python serialize and deseralize

Seralize and Deseralize avro data with schema ahead import avro.schemafrom avro.datafile import DataFileReader, DataFileWriterfrom avro.io import DatumReader, DatumWriter, BinaryDecoder, BinaryEncoderimport ioclass panAvroDataSchem: def dReader... Read More | Share it now!

‘pip install MySQL-python’ fails with ‘IndexError’ on Mac

By finding out the information that mysql-connector-cmight come to the conclusion that the configuration by brew installation may be incorrect , open the /usr/local/bin/mysql_config script to modify some of the contents of it: change... Read More | Share it now!

Python风格规范

https://zh-google-styleguide.readthedocs.io/en/latest/google-python-styleguide/python_style_rules/ 分号 Tip 不要在行尾加分号,... Read More | Share it now!

python中给程序加锁之fcntl模块的使用

python 中给文件加锁——fcntl模块import fcntl打开一个文件##当前目录下test文件要先存在,如果不存在会报错。或者以写的方式打开f =... Read More | Share it now!

Cannot connect to kafka from remote machine

Worked with from server.properties Uncomment And Replace <HOST IP> with actual IP. ... Read More | Share it now!

Java读写avro例子

https://www.cnblogs.com/fillPv/p/5009737.html avro是一个数据序列化框架,可以高效得进行序列化和反序列化,支持C, C++, C#, Java, PHP, Python,... Read More | Share it now!