\u4f46\u662f\uff0c\u5728\u5b66\u6821\u5b66\u5b8c\uff0c\u6ca1\u548b\u7ec3\u624b\uff08\u8fd8\u662f\u592a\u83dc\u4e86\uff09\uff0c\u53bb\u5230\u516c\u53f8\u53ef\u4ee5\u8bf4\u662f\u5168\u5fd8\u5149\u4e86\u3002\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u6765\u56de\u987e\u4ee5\u524d\u7684\u7b14\u8bb0\uff0c\u4ee5\u53ca\u8bb0\u5f55\u4e00\u4e0b\u5728\u5de5\u4f5c\u4e2d\u6bd4\u8f83\u5e38\u7528\u7684\u4e00\u4e9b\u547d\u4ee4\u3002<\/p>\n\n\n\n
- \u6211\u8fd9\u80af\u5b9a\u662f\u4ee5\u6211\u73b0\u5728\u7684\u7ef4\u5ea6\u6765\u8003\u91cf\u7684\uff0c\u6211\u5de5\u4f5c\u65f6\u957f\u6bd4\u8f83\u77ed\uff0c\u6240\u4ee5\u53ef\u80fd\u4f1a\u6709\u5f88\u591a\u547d\u4ee4\u4f1a\u5ffd\u7565\u6389\u4e86\uff0c\u6b22\u8fce\u5728\u8bc4\u8bba\u533a\u8865\u5145<\/li><\/ul>\n\n\n\n
![\"\"](\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/04\/\u56fe\u7247-53.png\")
<\/figure><\/div>\n\n\n\n\u4e00\u3001\u67e5\u770b\u65e5\u5fd7<\/strong><\/p>\n\n\n\n
\n\n\n\n\u7ebf\u4e0a\u51fa\u73b0\u4e86\u95ee\u9898\uff0c\u767b\u4e0a\u7ebf\u4e0a\u7684\u673a\u5668\u67e5\u65e5\u5fd7\u662f\u975e\u5e38\u5e38\u89c1<\/strong>\u7684\u64cd\u4f5c\u4e86\u3002\u6211\u7b2c\u4e00\u6b21\u767b\u4e0a\u7ebf\u4e0a\u673a\u5668\u67e5\u65e5\u5fd7\u7684\u65f6\u5019\uff0c\u6211\u8fd8\u53ea\u8bb0\u5f97\u4ee5\u4e0b\u7684\u51e0\u4e2a\u547d\u4ee4\uff08\u5047\u8bbe\u73b0\u5728\u6211\u4eec\u7684\u65e5\u5fd7\u6587\u4ef6\u53eb\u505a
service.log<\/code>)\uff1a<\/p>\n\n\n\ncat service.log<\/code><\/li>tail -f service.log<\/code><\/li>vim serivice.log<\/code><\/li>- \uff08\u660e\u663e\u662f\u4e0d\u591f\u7528\u7684\uff09<\/li><\/ul>\n\n\n\n
\u73b0\u5728\u65e5\u5fd7\u6bcf\u5929\u4ea7\u51fa\u7684\u5927\u5c0f\u5927\u69821GB\uff1a<\/p>\n\n\n\n
![\"\"](\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/04\/\u56fe\u7247-54-1024x406.png\")
<\/figure><\/div>\n\n\n\n\u5982\u679c\u662f\u5c0f\u6587\u4ef6\u7684\u8bdd\uff0c\u5355\u7eaf\u7684
cat<\/code>\u547d\u4ee4\u8fd8\u662f\u53ef\u4ee5\u5e94\u4ed8\u7684\uff0c\u4f46\u5982\u679c\u4f60\u76f4\u63a5\u7528cat<\/code>\u547d\u4ee4\u6253\u5f00\u4e00\u4e2a1GB\u7684\u65e5\u5fd7\u6587\u4ef6\uff0c\u4fdd\u8bc1\u5361\u6b7b\u4f60\uff08ctrl + c<\/code>\u9000\u51facat<\/code>\u547d\u4ee4\u9700\u8981\u5f88\u4e45\u624d\u80fd\u5c06cat<\/code>\u547d\u4ee4\u505c\u4e0b\u6765\uff09\u3002<\/p>\n\n\n\n- \u4e00\u822c\u6211\u53ea\u7528
cat<\/code>\u6765\u67e5\u770b\u8fd9\u4e2a\u5c0f\u6587\u4ef6\u7684\u6587\u672c\u5185\u5bb9\u662f\u4ec0\u4e48<\/li><\/ul>\n\n\n\n\u540c\u6837\u5730\uff0c\u5982\u679c\u662f\u5c0f\u6587\u4ef6\uff0c\u5355\u7eaf\u7684
vim<\/code>\u547d\u4ee4\u53bb\u6253\u5f00\u6587\u4ef6\u4e5f\u662f\u53ef\u4ee5\u5e94\u4ed8\u7684\uff0c\u4f46\u5982\u679c\u4f60\u7528vim<\/code>\u547d\u4ee4\u53bb\u6253\u5f00\u4e00\u4e2a1GB\u751a\u81f3\u66f4\u5927\u7684\u6587\u4ef6\uff0c\u4e5f\u80fd\u660e\u663e<\/strong>\u611f\u53d7\u5230\u7f13\u6162\u548c\u5361\u987f\u3002<\/p>\n\n\n\n\u5e73\u65f6\u6211\u8fd8\u662f\u5f88\u559c\u6b22\u7528
vim<\/code>\u53bb\u67e5\u627e\u5bf9\u5e94\u7684\u8bb0\u5f55\u7684\uff0c\u6211\u4e00\u822c\u7684\u64cd\u4f5c\uff1a<\/p>\n\n\n\nvim service<\/code><\/li>- \u6309
G<\/code>\u8df3\u8f6c\u5230\u6587\u4ef6\u7684\u672b\u5c3e<\/li>- \u6309
?<\/code> +\u5173\u952e\u5b57\u641c\u7d22\u5bf9\u5e94\u7684\u8bb0\u5f55<\/li>- \u6309
n<\/code>\u5f80\u4e0a\u67e5\u8be2\uff0c\u6309N<\/code>\u5f80\u4e0b\u67e5\u8be2<\/li><\/ul>\n\n\n\ntail -f service.log<\/code> \u8fd9\u4e2a\u547d\u4ee4\u6211\u4e00\u822c\u7528\u4e8e\u67e5\u770b\u6d41\u91cf\u662f\u5426\u8fdb\u6765\u4e86\uff08\u6216\u8005\u8c03\u8bd5\u7684\u65f6\u5019\u53ef\u4ee5\u76f4\u63a5\u770b\u5230\u65e5\u5fd7\uff0c\u518d\u8fc5\u901fctrl +c<\/code>\u5173\u6389\uff09<\/p>\n\n\n\n\u9762\u5bf9\u6bd4\u8f83\u5927\u7684\u65e5\u5fd7\u6587\u4ef6\uff0c\u8fd9\u6211\u4eec\u5c31\u5f97\u914d\u5408
grep<\/code>\u6765\u73a9\u4e86\uff0c\u6bd4\u5982\u6211\u4eec\u73b0\u5728\u5f97\u77e5\u67d0\u4e2a\u624b\u673a\u53f7\u6536\u4e0d\u5230\u77ed\u4fe1\u9a8c\u8bc1\u7801\uff0c\u60f3\u8981\u770b\u4e00\u4e0b\u8fd9\u4e2a\u624b\u673a\u53f7\u7684\u65e5\u5fd7\u662f\u600e\u4e48\u6837\u7684\u3002\u4e8e\u662f\u6211\u4eec\u5c31\u53ef\u4ee5\u8fd9\u6837\u641e\uff1a<\/p>\n\n\n\ncat service.log | grep 13888888888<\/code><\/li><\/ul>\n\n\n\n\u8fd9\u4e48\u4e00\u641e\uff0c\u5c31\u80fd\u5c06
service.log<\/code>\u4e2d\u6240\u6709\u542b\u670913888888888<\/code>\u7684\u8bb0\u5f55\u7ed9\u641c\u51fa\u6765\uff0c\u641c\u7d22\u7684\u901f\u5ea6\u8fd8\u662f\u8d3c\u5feb\u7684\u3002<\/p>\n\n\n\n![\"\"](\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/04\/\u56fe\u7247-55-1024x90.png\")
<\/figure><\/div>\n\n\n\n\u73b0\u5728\u6211\u4eec\u5df2\u7ecf\u80fd\u6839\u636e\u5173\u952e\u5b57\u641c\u5230\u5bf9\u5e94\u7684\u8bb0\u5f55\u4e86\uff0c\u63a5\u7740\u6211\u60f3\u770b\u4e00\u4e0b\u90a3\u6761\u8bb0\u5f55\u7684\u65e5\u5fd7\u4e0a\u4e0b\u6587<\/strong>\u3010\u8fd9\u6837\u5c31\u80fd\u77e5\u9053\u8fd9\u6761\u6570\u636e\u5927\u6982\u7684\u6267\u884c\u72b6\u6001\u4e86\u3011<\/p>\n\n\n\n
\u9996\u5148\uff0c\u6211\u4eec\u5148\u8981\u67e5\u51fa\u5bf9\u5e94\u8bb0\u5f55\u7684\u884c\u53f7\uff0c\u5728
cat<\/code> \u547d\u4ee4\u540e\u9762\u52a0\u4e0a\u4e00\u4e2a-n<\/code> \u53c2\u6570\u5c31\u597d\u4e86\u3002\u6240\u4ee5\u547d\u4ee4\u662f:cat -n service.log | grep 13888888888<\/code> \uff0c\u5982\u4e0b\u56fe\u6211\u4eec\u5c31\u53ef\u4ee5\u67e5\u5230\u5bf9\u5e94\u7684\u884c\u53f7\u4e86<\/p>\n\n\n\n![\"\"](\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/04\/\u56fe\u7247-56-1024x102.png\")
<\/figure><\/div>\n\n\n\n\u73b0\u5728\u884c\u6570\u662f29506\uff0c\u6211\u4eec\u4e00\u822c\u53ea\u8981\u770b\u4e00\u4e0b29506\u7684\u524d10\u884c\u548c\u540e10\u884c\u5c31\u5dee\u4e0d\u591a\u77e5\u9053\u95ee\u9898\u51fa\u73b0\u5728\u54ea\u4e86\uff0c\u4e8e\u662f\u6211\u4eec\u53ef\u4ee5\u8fd9\u6837\u505a\uff1a<\/p>\n\n\n\n
sed -n \"29496,29516p\" service.log<\/code>\uff1a\u4ece29496\u884c\u5f00\u59cb\u68c0\u7d22\uff0c\u523029516\u884c\u7ed3\u675f<\/li>cat -n service.log | tail -n +29496 | head -n 20<\/code>:\u4ece29496\u884c\u5f00\u59cb\u68c0\u7d22\uff0c\u5f80\u524d\u63a820\u6761<\/li><\/ul>\n\n\n\n\u5982\u679c\u5173\u952e\u5b57\u4e0d\u592a\u51c6\u786e\uff08\u65e5\u5fd7\u8f93\u51fa\u7684\u8bb0\u5f55\u592a\u591a\u4e86\uff09\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528
more<\/code>\u547d\u4ee4\u6765\u6d4f\u89c8\u6216\u8005\u8f93\u51fa\u5230\u6587\u4ef6\u4e0a\u518d\u5206\u6790\uff1a<\/p>\n\n\n\ncat service.log | grep 13 |more<\/code> \uff1a\u5c06\u67e5\u8be2\u540e\u7684\u7ed3\u679c\u4ea4\u7531more\u8f93\u51fa<\/li>cat service.log | grep 13 > \/home\/sanwai\/aa.txt<\/code> \u5c06\u67e5\u8be2\u540e\u7684\u7ed3\u679c\u5199\u5230\/home\/sanwai\/aa.txt<\/code>\u6587\u4ef6\u4e0a<\/li><\/ul>\n\n\n\n\u6709\u7684\u65f6\u5019\uff0c\u6211\u4eec\u60f3\u7edf\u8ba1\u8fd9\u4e2a\u65e5\u5fd7\u8f93\u51fa\u4e86\u591a\u5c11\u884c\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u8fd9\u6761\u547d\u4ee4\uff1a<\/p>\n\n\n\n
cat service.log | wc -l<\/code><\/li><\/ul>\n\n\n\n![\"\"](\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/04\/\u56fe\u7247-57.png\")
<\/figure><\/div>\n\n\n\n\u53c2\u8003\u8d44\u6599\uff1a<\/p>\n\n\n\n
- https:\/\/www.cnblogs.com\/xiashan17\/p\/7059978.html<\/li><\/ul>\n\n\n\n
\u4e8c\u3001\u67e5\u8fdb\u7a0b\u548c\u7aef\u53e3<\/strong><\/p>\n\n\n\n
\n\n\n\n\u67e5\u8fdb\u7a0b\u6709\u4e24\u4e2a\u547d\u4ee4\uff1a<\/p>\n\n\n\n
ps -ef<\/code><\/li>ps aux<\/code><\/li><\/ul>\n\n\n\n\u4e0a\u9762\u4e24\u4e2a\u547d\u4ee4\u90fd\u662f\u5217\u51fa\u6240\u6709\u7684\u8fdb\u7a0b\uff0c\u6211\u4eec\u8fd8\u662f\u901a\u8fc7
|<\/code>\u7ba1\u9053\u548cgrep<\/code> \u6765\u8fc7\u6ee4\u6389\u60f3\u8981\u67e5\u7684\u8fdb\u7a0b\uff0c\u6bd4\u5982\u8bf4\uff1aps -ef |grep java<\/code><\/p>\n\n\n\n\u628a\u8fdb\u7a0b\u67e5\u51fa\u6765\u5e72\u561b\uff1f\u77e5\u9053\u5b83\u7684\u8fdb\u7a0bID\u4e86\uff0c\u6211\u4eec\u53ef\u4ee5\u628a\u4ed6\u7ed9\u6740\u6389\u3002<\/p>\n\n\n\n
kill -9 processId<\/code>\uff1a\u6740\u6389\u67d0\u4e2a\u8fdb\u7a0b<\/li><\/ul>\n\n\n\n\u67e5\u7aef\u53e3\u4e5f\u662f\u4e00\u4e2a\u5f88\u5e38\u89c1\u7684\u64cd\u4f5c\uff0c\u5e38\u89c1\u547d\u4ee4\uff1a
netstat -lntup<\/code>\uff1a<\/p>\n\n\n\n![\"\"](\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/04\/\u56fe\u7247-58-1024x110.png\")
<\/figure><\/div>\n\n\n\n\u67e5\u770b\u67d0\u4e2a\u7aef\u53e3\u8be6\u7ec6\u7684\u4fe1\u606f\uff1a
lsof -i:4000<\/code><\/p>\n\n\n\n![\"\"](\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/04\/\u56fe\u7247-59-1024x158.png\")
<\/figure><\/div>\n\n\n\n\u4e09\u3001\u67e5\u770b\u7cfb\u7edf\u7684\u72b6\u6001<\/strong><\/p>\n\n\n\n
\n\n\n\n3.1 TOP\u5b9e\u65f6\u67e5\u770b\u8fdb\u7a0b\u7684\u72b6\u6001<\/strong><\/p>\n\n\n\n
TOP<\/strong> \u547d\u4ee4\u67e5\u770b\u8fdb\u7a0b\u7684\u72b6\u6001\uff0c\u5176\u4e2d\u6709\u4e2aload average\u53ef\u80fd\u4e0d\u662f\u90a3\u4e48\u597d\u7406\u89e3\uff0c\u4e0b\u9762\u6765\u89e3\u91ca\u4e00\u4e0b\uff1a<\/p>\n\n\n\n
load average\uff1a\u5728\u7279\u5b9a\u65f6\u95f4\u95f4\u9694\u5185\u8fd0\u884c\u961f\u5217\u4e2d<\/strong>(\u5728CPU\u4e0a\u8fd0\u884c\u6216\u8005\u7b49\u5f85\u8fd0\u884c\u591a\u5c11\u8fdb\u7a0b)\u7684\u5e73\u5747\u8fdb\u7a0b\u6570<\/strong>\u3002<\/p>\n\n\n\n
load average \u6709\u4e09\u4e2a\u503c\uff0c\u5206\u522b\u4ee3\u8868\uff1a1\u5206\u949f\u30015\u5206\u949f\u300115\u5206\u949f<\/strong>\u5185\u8fd0\u884c\u8fdb\u7a0b\u961f\u5217\u4e2d\u7684\u5e73\u5747\u8fdb\u7a0b\u6570\u91cf\u3002<\/p>\n\n\n\n
- \u6b63\u5728\u8fd0\u884c\u7684\u8fdb\u7a0b + \u51c6\u5907\u597d\u7b49\u5f85\u8fd0\u884c\u7684\u8fdb\u7a0b \u5728\u7279\u5b9a\u65f6\u95f4\u5185\uff081\u5206\u949f\uff0c5\u5206\u949f\uff0c10\u5206\u949f\uff09\u7684\u5e73\u5747\u8fdb\u7a0b\u6570<\/li><\/ul>\n\n\n\n
Linux\u8fdb\u7a0b\u53ef\u4ee5\u5206\u4e3a\u4e09\u4e2a\u72b6\u6001\uff1a<\/p>\n\n\n\n
- \u963b\u585e\u8fdb\u7a0b<\/li>
- \u53ef\u8fd0\u884c\u7684\u8fdb\u7a0b<\/li>
- \u6b63\u5728\u8fd0\u884c\u7684\u8fdb\u7a0b<\/li><\/ul>\n\n\n\n
\u6bd4\u5982\u73b0\u5728\u7cfb\u7edf\u67092\u4e2a\u6b63\u5728\u8fd0\u884c\u7684\u8fdb\u7a0b\uff0c3\u4e2a\u53ef\u8fd0\u884c\u8fdb\u7a0b\uff0c\u90a3\u4e48\u7cfb\u7edf\u7684load\u5c31\u662f5\uff0cload average\u5c31\u662f\u4e00\u5b9a\u65f6\u95f4\u5185\u7684load\u6570\u91cf\u5747\u503c<\/strong>\u3002<\/p>\n\n\n\n
3.2 free\u67e5\u770b\u5185\u5b58\u4f7f\u7528\u72b6\u51b5<\/strong><\/p>\n\n\n\n
linux\u7684\u5185\u5b58\u7ba1\u7406\u673a\u5236\u7684\u601d\u60f3\u5305\u62ec\uff08\u4e0d\u6562\u8bf4\u5c31\u662f\uff09\u5185\u5b58\u5229\u7528\u7387\u6700\u5927\u5316<\/strong>\uff0c\u5185\u6838\u4f1a\u628a\u5269\u4f59\u7684\u5185\u5b58\u7533\u8bf7\u4e3acached<\/strong>\uff0c\u800ccached\u4e0d\u5c5e\u4e8efree\u8303\u7574\u3002<\/p>\n\n\n\n
\u5982\u679cfree\u7684\u5185\u5b58\u4e0d\u591f\uff0c\u5185\u6838\u4f1a\u628a\u90e8\u5206cached\u7684\u5185\u5b58\u56de\u6536<\/strong>\uff0c\u56de\u6536\u7684\u5185\u5b58\u518d\u5206\u914d\u7ed9\u5e94\u7528\u7a0b\u5e8f\u3002\u6240\u4ee5\u5bf9\u4e8elinux\u7cfb\u7edf\uff0c\u53ef\u7528\u4e8e\u5206\u914d\u7684\u5185\u5b58\u4e0d\u53ea\u662ffree\u7684\u5185\u5b58\uff0c\u8fd8\u5305\u62eccached\u7684\u5185\u5b58\uff08\u5176\u5b9e\u8fd8\u5305\u62ecbuffers\uff09\u3002<\/p>\n\n\n\n
- \u53ef\u7528\u5185\u5b58<\/strong>=free\u7684\u5185\u5b58+cached\u7684\u5185\u5b58+buffers<\/li><\/ul>\n\n\n\n
Buffer Cache\u548cPage Cache\u3002\u524d\u8005\u9488\u5bf9\u78c1\u76d8\u5757\u7684\u8bfb\u5199\uff0c\u540e\u8005\u9488\u5bf9\u6587\u4ef6inode\u7684\u8bfb\u5199\u3002\u8fd9\u4e9bCache\u6709\u6548\u7f29\u77ed\u4e86 I\/O\u7cfb\u7edf\u8c03\u7528(\u6bd4\u5982read,write,getdents)\u7684\u65f6\u95f4\u3002\u78c1\u76d8\u7684\u64cd\u4f5c\u6709\u903b\u8f91\u7ea7\uff08\u6587\u4ef6\u7cfb\u7edf\uff09\u548c\u7269\u7406\u7ea7\uff08\u78c1\u76d8\u5757)<\/strong><\/p>\n\n\n\n
\u53c2\u8003\u8d44\u6599\uff1a<\/p>\n\n\n\n
- https:\/\/blog.csdn.net\/zhangchenglikecc\/article\/details\/52103737<\/li>
- https:\/\/www.cnblogs.com\/peida\/archive\/2012\/12\/24\/2831353.html<\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"
\u8f6c\u8f7d\uff1ahttps:\/\/github.com\/ZhongFuCheng3y\/athena \u6211\u5728\u5927\u5b66\u7684\u65f6\u5019\u4e5f\u6709\u8fc7L […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[],"_links":{"self":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/5389"}],"collection":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5389"}],"version-history":[{"count":5,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/5389\/revisions"}],"predecessor-version":[{"id":5511,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/5389\/revisions\/5511"}],"wp:attachment":[{"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5389"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5389"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5389"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
- \u53ef\u7528\u5185\u5b58<\/strong>=free\u7684\u5185\u5b58+cached\u7684\u5185\u5b58+buffers<\/li><\/ul>\n\n\n\n
- \u6b63\u5728\u8fd0\u884c\u7684\u8fdb\u7a0b + \u51c6\u5907\u597d\u7b49\u5f85\u8fd0\u884c\u7684\u8fdb\u7a0b \u5728\u7279\u5b9a\u65f6\u95f4\u5185\uff081\u5206\u949f\uff0c5\u5206\u949f\uff0c10\u5206\u949f\uff09\u7684\u5e73\u5747\u8fdb\u7a0b\u6570<\/li><\/ul>\n\n\n\n
- https:\/\/www.cnblogs.com\/xiashan17\/p\/7059978.html<\/li><\/ul>\n\n\n\n
- \u6309