This maybe you delete the shared lib file soft link. So must execute a system command to rebuild the...
Mongodb
MongoDB – Too Many open files
Mongodb always meat the error too many open files, then the deam process crashed. In Linux system, t...
Linux
Zbar parse the qrcode
Python can use zbar lib parse the qrcode information, There shows how to install the zbar lib and py...
Linux
Accelerating DNS parsing with pdnsd
Pdnsd is a good DNS parsing software in linux system. Compared with bind and dnsmasq, pdnsd has one ...
Python
Tornado asynchronous web request client example
Tornado is a python web Server, which is better for solving long connection request or IO asynchrono...
Mysql
Mysql partition search must scan the first partition
Mysql partition search optimization basically you should create a first partition that contains valu...
Python
Install pycurl problems
install pycurl with problems curl-config and ssl libs In centos 7 and python 3.6 environment, instal...
Linux
Upgrade the yum source for centos system
centos yum source upgrade and common libs and software
OrderedDict and json loads keep the origin order
OrderedDict is the sub object of dict, it will remember the origin order of the content. When compar...