1. operation and maintenance of three tricks
Restart: Restart the machine or process in question, to make it work.
Switch: standby main switch or the main switch, connecting node works normally.
Killing: kill the offending process, connections.
Three tricks to resolve more than 90 percent of troubleshooting work.
2. The three axes of the problem:
Only a temporary failure to solve the problem, not solve performance tuning, architecture optimization problem.
Only suppress the symptoms, not the illness.
3. Large data different operation and maintenance and operation and maintenance of traditional
1) different hardware
Traditional operation and maintenance of the underlying hardware and software substantially solid face;
Big Data is a commercial operation and maintenance of the face of complex hardware and Linux versions;
2) different architectures
Traditional architecture-based stand-alone operation and maintenance of the face;
The face of big data operation and maintenance of complex distributed architecture;
3) different systems
Most of the maintenance operation and maintenance of traditional closed source commercial version of the system;
Operation and maintenance of large data typically face an open source system, lack of manual documentation, read the source code of the high requirements;
4) Intelligent different
Traditional human dimension depends mainly on labor, tall and still rarely used tool;
Reliance on large data operation and maintenance of automated tools greatly increased;
4.IaaS layer operation and maintenance work
Hardware + server + storage + Network