76 lines
2.2 KiB
Bash
76 lines
2.2 KiB
Bash
#!/bin/sh
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#mcn2
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#防止因上一次的命令阻塞或长时间未返回,
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#导致10秒内还不结束, 强行杀掉,
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#否则长时间运行后, 会有大量后台进程运行
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killall_uncompleted_cmd(){
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#killall -9 tsg_cluster_register
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killall -9 -q tsg_diagnose_background
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killall -9 -q tsg_update_tags
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killall -9 -q tsg_monit_interface
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killall -9 -q tsg_monit_intercept
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}
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start_background_cmd(){
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#后台并发运行, 保证所有命令的开始运行时间基本一样，
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#且不会因某个命令网络拥塞、执行时间长等问题，阻塞while(1)主循环
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/opt/tsg/tsg-monitor/tsg_diagnose_background > /dev/null &
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/opt/tsg/tsg-monitor/tsg_update_tags > /dev/null &
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/opt/tsg/tsg-monitor/tsg_monit_interface > /dev/null &
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/opt/tsg/tsg-monitor/tsg_monit_intercept > /dev/null &
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}
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#return value: current time in ms
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get_current_time_in_ms(){
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time_sec=`date +"%s"`
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time_nsec=`date +"%N"`
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#echo $time_sec
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#echo $time_nsec
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time_epoch_ms=`echo | awk -v a=$time_sec -v b=$time_nsec '{printf("%.f"), a*1000+b/1000/1000}'`
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echo $time_epoch_ms
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}
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#args:
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#begin from time, in ms
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#wait for n ms
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sleep_for_time_ms(){
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last_time=$1
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wait_sec=$2
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#break_time=`echo | awk -v a=$last_time -v b=$wait_sec '{printf("%.f"), a+b}'`
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break_time=`expr $last_time + $wait_sec`
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break_time_int=`expr $break_time`
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#echo "start: last_time is:$last_time, expect break timeis:$break_time!"
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current_time=0
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break_time=0
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#break_time=`expr $last_time + 1000*$1`
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while [ 1 ]; do
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current_time=`get_current_time_in_ms`
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current_time_int=`expr $current_time`
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if [ $current_time_int -ge $break_time_int ]; then
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#echo "current is: $current_time_int, break_time is:$break_time_int, break!"
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break
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else
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#echo "break is: $current_time_int, last_time is:$break_time_int, continue!"
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# usleep is us
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usleep 1000
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fi
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done
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}
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while [ 1 ]; do
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start_time=`get_current_time_in_ms`
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echo tsg-monitor start at `date +"%Y/%m/%d, %H:%M:%S.%N"` >> /tmp/tsg-monitor.log
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start_background_cmd
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sleep 10
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killall_uncompleted_cmd
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sleep_for_time_ms $start_time 15000
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done
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