{"id":561883,"date":"2023-01-30T03:17:14","date_gmt":"2023-01-29T19:17:14","guid":{"rendered":"http:\/\/4563.org\/?p=561883"},"modified":"2023-01-30T03:17:14","modified_gmt":"2023-01-29T19:17:14","slug":"%e5%bd%93cpu%e5%b0%8f%e4%ba%8e11%e5%b0%b1%e9%87%8d%e5%90%afnginx%e7%9a%84%e8%ae%a1%e5%88%92%e4%bb%bb%e5%8a%a1shell%ef%bc%8c%e7%90%83%e5%a4%a7%e4%bd%ac%e6%8c%87%e7%82%b9","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=561883","title":{"rendered":"\u5f53CPU\u5c0f\u4e8e11%\u5c31\u91cd\u542fnginx\u7684\u8ba1\u5212\u4efb\u52a1shell\uff0c\u7403\u5927\u4f6c\u6307\u70b9"},"content":{"rendered":"\n

\t\t\t\t\t\u5c0f\u9e21\u771f\u7231\u65e0\u7591<\/strong> \t\t\t\t\u5927\u4f6c\u6709\u8bdd\u8bf4 : \t<\/p>\n

\u5f53CPU\u5c0f\u4e8e11%\u5c31\u91cd\u542fnginx\u7684\u8ba1\u5212\u4efb\u52a1shell\uff0c\u7403\u5927\u4f6c\u6307\u70b9<\/h3>\n

\t\t \u672c\u5e16\u6700\u540e\u7531 \u5c0f\u9e21\u771f\u7231\u65e0\u7591 \u4e8e 2023-1-30 00:36 \u7f16\u8f91 <\/p>\n

\u5982\u9898\uff0c\u600e\u4e48\u5199\uff0c5\u5206\u949f\u81ea\u52a8\u68c0\u6d4b\u4e00\u6b21\uff0ccpu\u5c0f\u4e8e11%\uff0c\u5c31\u91cd\u542fnginx\uff0c\u7403\u5927\u4f6c\u6307\u70b9\uff0c<\/p>\n

\u8fd8\u5f97\u9760\u81ea\u5df1\uff0c\u624d\u80fd\u4e30\u8863\u8db3\u98df\uff0c\u4ee3\u7801\u5949\u4e0a<\/p>\n

TIME_INTERVAL=5
time=$(date "+%Y-%m-%d %H:%M:%S")
LAST_CPU_INFO=$(cat \/proc\/stat | grep -w cpu | awk ‘{print $2,$3,$4,$5,$6,$7,$8}’)
LAST_SYS_IDLE=$(echo $LAST_CPU_INFO | awk ‘{print $4}’)
LAST_TOTAL_CPU_T=$(echo $LAST_CPU_INFO | awk ‘{print $1+$2+$3+$4+$5+$6+$7}’)
sleep ${TIME_INTERVAL}
NEXT_CPU_INFO=$(cat \/proc\/stat | grep -w cpu | awk ‘{print $2,$3,$4,$5,$6,$7,$8}’)
NEXT_SYS_IDLE=$(echo $NEXT_CPU_INFO | awk ‘{print $4}’)
NEXT_TOTAL_CPU_T=$(echo $NEXT_CPU_INFO | awk ‘{print $1+$2+$3+$4+$5+$6+$7}’)<\/p>\n

#\u7cfb\u7edf\u7a7a\u95f2\u65f6\u95f4
SYSTEM_IDLE=`echo ${NEXT_SYS_IDLE} ${LAST_SYS_IDLE} | awk ‘{print $1-$2}’`
#CPU\u603b\u65f6\u95f4
TOTAL_TIME=`echo ${NEXT_TOTAL_CPU_T} ${LAST_TOTAL_CPU_T} | awk ‘{print $1-$2}’`
CPU_USAGE=`echo ${SYSTEM_IDLE} ${TOTAL_TIME} | awk ‘{printf "%.2f", 100-$1\/$2*100}’`
echo "CPU Usage:${CPU_USAGE}%"$time<\/p>\n

cpu=`echo "$CPU_USAGE" | cut -d "." -f 1`<\/p>\n

if [ $cpu -le 11 ]
then
echo "\u8349 \u53c8\u6b7b\u673a\u4e86"
\/etc\/init.d\/nginx restart
else
echo "\u563b\u563b\u6ca1\u4e8b\u54e6"
fi\t\t\t\t<\/p>\n

\t\t\t\t\tdragonfsky<\/strong> \t\t\t\t\u5927\u4f6c\u6709\u8bdd\u8bf4 : \t<\/p>\n

<\/h3>\n

\t\t\u4f60\u8fd9\u662f\u73a9\u4ec0\u4e48\u9a9a\u64cd\u4f5c\t\t\t\t<\/p>\n

\t\t\t\t\t\u5c0f\u9e21\u771f\u7231\u65e0\u7591<\/strong> \t\t\t\t\u5927\u4f6c\u6709\u8bdd\u8bf4 : \t<\/p>\n

<\/h3>\n

\t\tdragonfsky \u5927\u4f6c\u6709\u8bdd\u8bf4 : 2023-1-29 23:30
\u4f60\u8fd9\u662f\u73a9\u4ec0\u4e48\u9a9a\u64cd\u4f5c<\/p>\n

\u670d\u52a1\u5668\u603b\u662f\u4f1a\u81ea\u52a8\u6b47\u903c\uff0c\u8fc7\u4e00\u5c0f\u65f6\u6216\u8005\u51e0\u5c0f\u65f6\uff0c\u81ea\u52a8\u597d\uff0c\u5982\u679c\u53d1\u73b0\u4e86\uff0c\u91cd\u542fnginx\u5c31\u597d\u4e86\u3002\u6392\u67e5\u4e0d\u51fa\u95ee\u9898\t\t\t\t<\/p>\n

\t\t\t\t\tLaa<\/strong> \t\t\t\t\u5927\u4f6c\u6709\u8bdd\u8bf4 : \t<\/p>\n

<\/h3>\n

\t\t\u662fnginx\u6302\u4e86\uff1fsystemd\u52a0\u4e2a\u81ea\u52a8\u91cd\u542f\u5c31\u884c\u4e86 \t\t\t\t<\/p>\n

\t\t\t\t\t\u5c0f\u9e21\u771f\u7231\u65e0\u7591<\/strong> \t\t\t\t\u5927\u4f6c\u6709\u8bdd\u8bf4 : \t<\/p>\n

<\/h3>\n

\t\tLaa \u5927\u4f6c\u6709\u8bdd\u8bf4 : 2023-1-29 23:34
\u662fnginx\u6302\u4e86\uff1fsystemd\u52a0\u4e2a\u81ea\u52a8\u91cd\u542f\u5c31\u884c\u4e86<\/p>\n

\u4e0d\u662fnginx\u6302\u4e86\uff0c\u5c31\u662f\u4e0d\u77e5\u9053\u54ea\u91cc\u6302\u4e86\uff0c\u53ea\u77e5\u9053\u91cd\u542fnginx\u53ef\u4ee5\u89e3\u51b3\u95ee\u9898\u3002\u5c31\u7b97\u4e0d\u64cd\u4f5c\uff0c\u8fc7\u4e2a\u51e0\u5c0f\u65f6\uff0c\u4e5f\u80fd\u81ea\u5df1\u6062\u590d\t\t\t\t<\/p>\n

\t\t\t\t\tFranzkafkaYu<\/strong> \t\t\t\t\u5927\u4f6c\u6709\u8bdd\u8bf4 : \t<\/p>\n

<\/h3>\n

\t\t\u5199\u4e2awhile\u5faa\u73af\uff0c\u5faa\u73af\u4f53\u5185\u53ef\u4ee5\u901a\u8fc7top\u6216\u8005sysstat\u5b50\u547d\u4ee4\u6216\u8005CPU\u7684idle\u72b6\u6001\uff0c\u82e5\u6ee1\u8db3\u6761\u4ef6\u5c31systemctl \u91cd\u542fnginx\uff0c\u4e0d\u8fc7\u8fd9\u4e1c\u897f\u6cbb\u6807\u4e0d\u6cbb\u672c\uff0c\u628aCPU\u5f02\u5e38\u7684\u6839\u672c\u539f\u56e0\u627e\u5230\u624d\u662f\u771f\u7684\t\t\t\t<\/p>\n

\t\t\t\t\t\u57ce\u91cc\u7684\u6708\u5149<\/strong> \t\t\t\t\u5927\u4f6c\u6709\u8bdd\u8bf4 : \t<\/p>\n

<\/h3>\n

\t\t \u672c\u5e16\u6700\u540e\u7531 \u57ce\u91cc\u7684\u6708\u5149 \u4e8e 2023-1-30 02:08 \u7f16\u8f91 <\/p>\n

#\uff01\/bin\/bash<\/p>\n

idle = top -n 1 |grep %Cpu | awk-F " " ‘{print $8}’<\/p>\n

if [ $idle < 10 ]; then
    systemctl restart nginx
fi<\/p>\n

\u63d0\u793a\u53d8\u91cf\u6709\u95ee\u9898 \u5c31\u6539\u6210idle = top -n 1 |grep %Cpu | awk-F " " ‘{print $8}’<\/p>\n

\u5b9a\u65f6\u4efb\u52a1crontab\t\t\t\t<\/p>\n

\t\t\t\t\thanada<\/strong> \t\t\t\t\u5927\u4f6c\u6709\u8bdd\u8bf4 : \t<\/p>\n

<\/h3>\n

\t\t\u6cbb\u6807\u4e0d\u6cbb\u672c\u2026\u2026\t\t\t\t<\/p>\n

\t\t\t\t\t\u5c0f\u9e21\u771f\u7231\u65e0\u7591<\/strong> \t\t\t\t\u5927\u4f6c\u6709\u8bdd\u8bf4 : \t<\/p>\n

<\/h3>\n

\t\t\u57ce\u91cc\u7684\u6708\u5149 \u5927\u4f6c\u6709\u8bdd\u8bf4 : 2023-1-30 01:03
\u63d0\u793a\u53d8\u91cf\u6709\u95ee\u9898 \u5c31\u6539\u6210<\/p>\n

\u611f\u8c22\u5927\u4f6c\uff0c\u786e\u5b9e\u4e0d\u884c\u3002\u6211\u5df2\u7ecf\u89e3\u51b3\u4e86\u3002\t\t\t\t<\/p>\n

\t\t\t\t\t\u602a\u4eba<\/strong> \t\t\t\t\u5927\u4f6c\u6709\u8bdd\u8bf4 : \t<\/p>\n

<\/h3>\n

\t\t\u53fc\uff0c\u8ddf\u5927\u4f6c\u5b66\u4e60\t\t\t <\/p>\n","protected":false},"excerpt":{"rendered":"

\u5c0f\u9e21\u771f\u7231\u65e0\u7591 \u5927\u4f6c\u6709\u8bdd\u8bf4 : \u5f53C…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/561883"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=561883"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/561883\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=561883"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=561883"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=561883"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}