Linux Expect command example


How to use Oracle trunc round ceil and floor


Environment variables setting in Ubuntu Linux


how to find file in Linux


mysql truncate vs delete and drop


Spark running mode:Local mode, standalone,on yarn


use regex to match positive or negative number,Chinese character,blank,URL,date format


use regex to match email


Check Centos version


list file size in Linux - ls command introduction


what's the different between folder webapps and wtpwebapps


Zookeeper ZAB and Paxos


Distributed transaction - 2PC vs 3PC


how to implement distributed transaction (2PC or TCC)


Zookeeper leader election


What's the different bewteen ASC and DESC in SQL


Service Mesh introduction


database isolation level - Atomicity Consistency Isolation and Durability


Eureka self-protection,service regiseter and workflow


Zero copy : mmap and sendfile in detail


What's zookeeper split brain and how to resolve


NULL pointer and Wild pointer in CPP


CPP NULL pointer


Nginx not only reverse proxy


Nginx reverse proxy introduction


Nginx reverse proxy config


Linux Configure SSH port


Mysql update table name , index and field


Communication methods between processes


exit method in C language


Pressure test - Jmeter quick start


what's the difference between http and https


Linux install python and pip,step by step


HTTP 404: File not found


HTTP 405 : Method not allowed


Logstash read nginx log , kafka input output


Javascript substring,substr and slice


SQL MINUS and UNION


Logstash input multiple kafka and output to elasticsearch


Introduction to Ajax and Axios


kill process in Linux


Linux tcpdump samples


Mysql start/stop/restart in Linux


Install Nvidia in Linux CentOS


logstash output elasticsearch and template sample


How to paging in Mysql


Javascript remove space samples


Logstash grok introduction and sample


Quick fix error : "Unsupported major.minor version 52.0"


JSP and Servlet