{"id":1125,"date":"2022-07-18T14:22:11","date_gmt":"2022-07-18T06:22:11","guid":{"rendered":"https:\/\/aichh.com\/?p=1125"},"modified":"2022-07-18T14:37:38","modified_gmt":"2022-07-18T06:37:38","slug":"sh-shell%e5%ae%9e%e7%8e%b0%e8%87%aa%e5%8a%a8%e6%9d%80%e6%ad%bbcpu%e5%8d%a0%e7%94%a8%e6%9c%80%e9%ab%98%e7%9a%84pid%ef%bc%8c%e5%90%8c%e6%97%b6%e5%bd%93cpu%e8%b6%85%e8%bf%8795%e8%87%aa%e5%8a%a8%e9%87%8d","status":"publish","type":"post","link":"https:\/\/aichh.com\/1125.html","title":{"rendered":"sh shell\u5b9e\u73b0\u81ea\u52a8\u6740\u6b7bcpu\u5360\u7528\u6700\u9ad8\u7684pid\uff0c\u540c\u65f6\u5f53cpu\u8d85\u8fc795%\u81ea\u52a8\u91cd\u542fapache"},"content":{"rendered":"

\u5b9e\u5728\u662f\u88ab\u903c\u65e0\u5948\uff0c\u624d\u60f3\u51fa\u5982\u6b64\u62db\u6570\uff01<\/p>\n

\u670d\u52a1\u5668\u8001\u662f\u88ab\u653b\u51fb\uff0ccpu\u5360\u7528\u7279\u522b\u9ad8\uff0c\u800c\u4e14\u7279\u522b\u9ad8\u7684\u8fdb\u7a0b\u662fhttpd\uff08\u6211\u77e5\u9053\u6709\u7a0b\u5e8f\u6f0f\u6d1e\uff0cbut\u7a0b\u5e8f\u4e0d\u662f\u6211\u5199\u7684\uff09\u3002<\/p>\n

\u7b2c\u4e00\u79cd\u60c5\u51b5\uff1a
\n<\/p>\n

httpd\u7684\u5360\u7528\u5df2\u7ecf\u8fbe\u523099.8%\u4e86
\n\u7b2c\u4e00\u79cd\u89e3\u51b3\u529e\u6cd5<\/p>\n

\u5f53cpu\u5360\u7528\u8d85\u8fc795%\u540c\u65f660s\u95f4\u9694\u5185httpd\u7684 pid\u76f8\u540c\u65f6\u5019 \u5219\u6740\u6b7b\u8be5pid<\/p>\n

\u4ee3\u7801\uff1a<\/p>\n

#!\/bin\/sh\r\n# qiyulin to monitor used CPU\r\nrecord=0\r\nwhile true;\r\ndo\r\ncpu=$(top -b -n1 | grep \"httpd\" | head -1 | awk '{print $9}')\r\npid=$(top -b -n1 | grep \"httpd\" | head -1 | awk '{print $1}')\r\n#cpu check\r\nresult=${cpu\/.*}\r\nif [[ $record == $pid ]];then kill -9 $pid;echo \"$pid was killed\";fi\r\nif [[ $result > 95 || $result == 100 ]];then let record=${pid};else let record=0;fi\r\n#echo\r\necho `date +%F\" \"%H:%M:%S`+\" cpu:$result% record pid:$record pid:$pid\"\r\nsleep 60\r\ndone<\/pre>\n
 <\/p>\n
\u8fd9\u6837\u670d\u52a1\u5668\u5e73\u7a33\u7684\u8fd0\u884c\u4e86\u4e00\u6bb5\u65f6\u95f4\uff0c\u81f3\u5c11\u4fdd\u8bc1\u4e0d\u4f1a\u518d\u6b7b\u4e86\uff0c\u540e\u6765\u53c8\u51fa\u73b0\u4e86\u72b6\u51b52<\/p>\n
\u7b2c\u4e8c\u79cd\u60c5\u51b5<\/p>\n
top\u4e2d\u6ca1\u6709\u7279\u522b\u9ad8\u7684cpu\u5360\u7528\uff0c\u4f46\u662f\u603b\u7684mem\u5360\u7528\u8d85\u8fc7\u4e8699%
\n<\/p>\n
\u5509\uff01\u8868\u793a\u5f88\u65e0\u5948\uff0c\u600e\u4e48\u529e\u5462\uff1f \u5f53used\u4f7f\u7528\u8d85\u8fc795%\u7684\u503c\u7684\u65f6\u5019\u5219 \u91cd\u542fhttpd<\/p>\n
\u4ee3\u7801\uff1a<\/p>\n
#!\/bin\/sh\r\n# qiyulin to monitor used CPU\r\nrecord=0\r\nwhile true;\r\ndo\r\ncpu=$(top -b -n1 | grep \"httpd\" | head -1 | awk '{print $9}')\r\npid=$(top -b -n1 | grep \"httpd\" | head -1 | awk '{print $1}')\r\n#cpu check\r\nresult=${cpu\/.*}\r\nif [[ $record == $pid ]];then kill -9 $pid;echo \"$pid was killed\";fi\r\nif [[ $result > 95 || $result == 100 ]];then let record=${pid};else let record=0;fi\r\n#mem check\r\nmem=$(free -m | awk 'NR==2 {print $3}')\r\nif [[ $mem > 3638 ]];then apache-restart;echo \"$mem is out 95%,so the httpd restart\";fi\r\n#echo\r\necho `date +%F\" \"%H:%M:%S`+\" cpu:$result% record pid:$record pid:$pid mem:$mem\"\r\nsleep 60\r\ndone<\/pre>\n
 <\/p>\n
\u65e0\u5948\u4e4b\u4e3e....<\/p>\n
 <\/p>\n
\u54e6\u5bf9\u4e86\uff0c\u5fd8\u4e86\u8bf4\u4e86\u8fd9\u91cc\u5982\u679c\u60f3\u8981 \u4f60\u5199\u7684\u811a\u672c\u5728\u540e\u53f0\u98de~~~<\/p>\n
\u9700\u8981\u4f7f\u7528\u547d\u4ee4\u5982\u4e0b\uff1a<\/p>\n
nohup sh .\/checkCpu.sh &<\/pre>\n
\u8fd9\u6837\u7528\u6237 \u5373\u4f7f\u9000\u51fa\u5219\u8be5\u811a\u672c\u4e5f\u4f1a\u7ee7\u7eed\u8fd0\u884c\uff01<\/p>\n
\u5982\u4f55\u6740\u6b7b\u8be5\u811a\u672c<\/p>\n
ps -ax #\u67e5\u770b\u6240\u6709\u7684\u8fdb\u7a0bpid\r\nkill -9 pid \/\/\u6740\u6b7b\u4e00\u4e2a\u67d0\u4e2apid<\/pre>\n
 <\/p>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"\u5b9e\u5728\u662f\u88ab\u903c\u65e0\u5948\uff0c\u624d\u60f3\u51fa\u5982\u6b64\u62db\u6570\uff01 \u670d\u52a1\u5668\u8001\u662f\u88ab\u653b\u51fb\uff0ccpu\u5360\u7528\u7279\u522b\u9ad8\uff0c\u800c\u4e14\u7279\u522b\u9ad8\u7684\u8fdb\u7a0b\u662fhttpd\uff08\u6211\u77e5\u9053\u6709\u7a0b\u5e8f\u6f0f\u6d1e\uff0cbut\u7a0b\u5e8f\u4e0d\u662f\u6211\u5199\u7684\uff09\u3002 \u7b2c\u4e00\u79cd\u60c5\u51b5\uff1a httpd\u7684\u5360\u7528\u5df2\u7ecf\u8fbe\u523099.8%\u4e86 \u7b2c\u4e00 \u00b7\u00b7\u00b7","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[205,295,296],"class_list":["post-1125","post","type-post","status-publish","format-standard","hentry","category-jiaocheng","tag-cpu","tag-httpd","tag-pid"],"views":265,"_links":{"self":[{"href":"https:\/\/aichh.com\/api\/wp\/v2\/posts\/1125","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aichh.com\/api\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aichh.com\/api\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aichh.com\/api\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aichh.com\/api\/wp\/v2\/comments?post=1125"}],"version-history":[{"count":2,"href":"https:\/\/aichh.com\/api\/wp\/v2\/posts\/1125\/revisions"}],"predecessor-version":[{"id":1129,"href":"https:\/\/aichh.com\/api\/wp\/v2\/posts\/1125\/revisions\/1129"}],"wp:attachment":[{"href":"https:\/\/aichh.com\/api\/wp\/v2\/media?parent=1125"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aichh.com\/api\/wp\/v2\/categories?post=1125"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aichh.com\/api\/wp\/v2\/tags?post=1125"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}