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新浪是如何分析处理32亿条实时日志的？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...。
技术架构
简单介绍一下服务的技术架构：
这是一个再常见不过的架构了：
（1）Kafka：接收用户日志的消息队列。
（2）Logstash：做日志解析，统一成JSON输出给Elasticsearch。
（3）Elasticsearch：实时日志分析服务的核心技...
How to get the filename without the extension from a path in Python?
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Getting the name of the file without the extension:
import os
print(os.path.splitext("/path/to/some/file.txt")[0])
Prints:
/path/to/some/file
Documentation for os.path.splitext.
Important Note: If the filename has multiple dots, only the extension after the last one is removed....
What to do on TransactionTooLargeException
...t of operations pending
How to handle when you get this exception
If possible, split the big operation in to small chunks, for example, instead of calling applyBatch() with 1000 operations, call it with 100 each.
Do not exchange huge data (>1MB) between services and application
I dont know...
搭建高可用mongodb集群（一）——配置mongodb - 大数据 & AI - 清泛网 - 专...
...烦的事情。如果是非常大数据量的表，增加字段简直就是一个噩梦。
高可用，NoSQL在不太影响性能的情况，就可以方便的实现高可用的架构。比如mongodb通过mongos、mongo分片就可以快速配置出高可用配置。
在nosql数据库里，大部...
Python subprocess/Popen with a modified environment
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I think os.environ.copy() is better if you don't intend to modify the os.environ for the current process:
import subprocess, os
my_env = os.environ.copy()
my_env["PATH"] = "/usr/sbin:/sbin:" + my_env["PATH"]
subprocess.Popen(my_comm...
Is it possible to capture a Ctrl+C signal and run a cleanup function, in a “defer” fashion?
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You can use the os/signal package to handle incoming signals. Ctrl+C is SIGINT, so you can use this to trap os.Interrupt.
c := make(chan os.Signal, 1)
signal.Notify(c, os.Interrupt)
go func(){
for sig := range c {
// sig is a ^C...
Do Swift-based applications work on OS X 10.9/iOS 7 and lower?
Will Swift-based applications work on OS X 10.9 (Mavericks)/iOS 7 and lower?
19 Answers
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【phpcms v9】PC站和手机站 全静态手机移动站方法 - 更多技术 - 清泛网 - ...
...参考：http: www admin365 cn thread-40728-1-1 html2、------- 双模板 一个后台全静态的方式，目前网上没有，需要自己实现，不过思路不外乎 defa 1、PC静态，手机动态或伪静态参考：http://www.admin365.cn/thread-40728-1-1.html
2、------- 双模板 一...
How can I extract the folder path from file path in Python?
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You were almost there with your use of the split function. You just needed to join the strings, like follows.
>>> import os
>>> '\\'.join(existGDBPath.split('\\')[0:-1])
'T:\\Data\\DBDesign'
Although, I would recomme...
mkdir -p functionality in Python [duplicate]
...ue)
The exist_ok parameter was added in Python 3.5.
For Python ≥ 3.2, os.makedirs has an optional third argument exist_ok that, when True, enables the mkdir -p functionality—unless mode is provided and the existing directory has different permissions than the intended ones; in that case, OSEr...