nginx online exception scheme filing

 

1: Check whether the system is waiting too much
netstat -n | awk '/^tcp/ {++S[$NF]} END {for(a in S) print a, S[a]}'

Two: View the system's cpu mem io net
iostat -x -k |awk '{print $12}'|sort -rn -t ' ' -k 2 | head -2|sed -n 2p 2

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