{"id":247,"date":"2013-01-06T10:17:09","date_gmt":"2013-01-06T02:17:09","guid":{"rendered":"http:\/\/www.shuran.cn\/?p=247"},"modified":"2013-01-06T10:17:09","modified_gmt":"2013-01-06T02:17:09","slug":"iostat%e5%af%b9linux%e7%a1%ac%e7%9b%98io%e6%80%a7%e8%83%bd%e8%bf%9b%e8%a1%8c%e6%a3%80%e6%b5%8b","status":"publish","type":"post","link":"https:\/\/www.shuran.cn\/?p=247","title":{"rendered":"iostat\u5bf9linux\u786c\u76d8IO\u6027\u80fd\u8fdb\u884c\u68c0\u6d4b"},"content":{"rendered":"

\u670d\u52a1\u5668\u67e5\u770bIO\u7684\u5de5\u5177<\/p>\n

yum install iotop<\/p>\n

yum -y install sysstat<\/p>\n

\u4e24\u4e2a\uff0ciotop\u547d\u4ee4\u548ciostat<\/p>\n

# iostat -x 1 10<\/div>\n
Linux 2.6.18-92.el5xen 03\/01\/2010<\/div>\n
avg-cpu: \u00a0 %user %nice %system %iowait \u00a0 %steal %idle<\/div>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 1.10 0.00 4.82 39.54 0.07 54.46<\/div>\n
Device: \u00a0 \u00a0 \u00a0 rrqm\/s wrqm\/s r\/s w\/s rsec\/s wsec\/s avgrq-sz avgqu-sz await \u00a0 svctm \u00a0 %util<\/div>\n
sda \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 0.00 \u00a0 \u00a0 3.50 \u00a0 0.40 \u00a0 2.50 \u00a0 \u00a0 5.60 48.00 18.48 \u00a0 \u00a0 0.00 0.97 0.97 0.28<\/div>\n
sdb \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 0.00 \u00a0 \u00a0 0.00 \u00a0 0.00 \u00a0 0.00 \u00a0 \u00a0 0.00 \u00a0 \u00a0 0.00 \u00a0 \u00a0 0.00 \u00a0 \u00a0 0.00 0.00 0.00 0.00<\/div>\n
sdc \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 0.00 \u00a0 \u00a0 0.00 \u00a0 0.00 \u00a0 0.00 \u00a0 \u00a0 0.00 \u00a0 \u00a0 0.00 \u00a0 \u00a0 0.00 \u00a0 \u00a0 0.00 0.00 0.00 0.00<\/div>\n
sdd \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 0.00 \u00a0 \u00a0 0.00 \u00a0 0.00 \u00a0 0.00 \u00a0 \u00a0 0.00 \u00a0 \u00a0 0.00 \u00a0 \u00a0 0.00 \u00a0 \u00a0 0.00 0.00 0.00 0.00<\/div>\n
sde \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 0.00 \u00a0 \u00a0 0.10 \u00a0 0.30 \u00a0 0.20 \u00a0 \u00a0 2.40 \u00a0 \u00a0 2.40 \u00a0 \u00a0 9.60 \u00a0 \u00a0 0.00 1.60 1.60 0.08<\/div>\n
sdf \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a017.40 \u00a0 \u00a0 0.50 102.00 \u00a0 0.20 12095.20 \u00a0 \u00a0 5.60 118.40 \u00a0 \u00a0 0.70 6.81 2.09 \u00a0 21.36<\/div>\n
sdg \u00a0 \u00a0 \u00a0 \u00a0 \u00a0232.40 \u00a0 \u00a0 1.90 379.70 \u00a0 0.50 76451.20 19.20 201.13 \u00a0 \u00a0 4.94 13.78 2.45 \u00a0 93.16<\/div>\n
rrqm\/s: \u6bcf\u79d2\u8fdb\u884c merge \u7684\u8bfb\u64cd\u4f5c\u6570\u76ee\u3002\u5373 delta(rmerge)\/s<\/div>\n
wrqm\/s: \u00a0 \u00a0\u6bcf\u79d2\u8fdb\u884c merge \u7684\u5199\u64cd\u4f5c\u6570\u76ee\u3002\u5373 delta(wmerge)\/s<\/div>\n
r\/s: \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u6bcf\u79d2\u5b8c\u6210\u7684\u8bfb I\/O \u8bbe\u5907\u6b21\u6570\u3002\u5373 delta(rio)\/s<\/div>\n
w\/s: \u00a0 \u00a0 \u00a0 \u6bcf\u79d2\u5b8c\u6210\u7684\u5199 I\/O \u8bbe\u5907\u6b21\u6570\u3002\u5373 delta(wio)\/s<\/div>\n
rsec\/s: \u6bcf\u79d2\u8bfb\u6247\u533a\u6570\u3002\u5373 delta(rsect)\/s<\/div>\n
wsec\/s: \u00a0 \u6bcf\u79d2\u5199\u6247\u533a\u6570\u3002\u5373 delta(wsect)\/s<\/div>\n
rkB\/s: \u00a0 \u6bcf\u79d2\u8bfbK\u5b57\u8282\u6570\u3002\u662f rsect\/s \u7684\u4e00\u534a\uff0c\u56e0\u4e3a\u6bcf\u6247\u533a\u5927\u5c0f\u4e3a512\u5b57\u8282\u3002(\u9700\u8981\u8ba1\u7b97)<\/div>\n
wkB\/s: \u6bcf\u79d2\u5199K\u5b57\u8282\u6570\u3002\u662f wsect\/s \u7684\u4e00\u534a\u3002(\u9700\u8981\u8ba1\u7b97)<\/div>\n
avgrq-sz: \u5e73\u5747\u6bcf\u6b21\u8bbe\u5907I\/O\u64cd\u4f5c\u7684\u6570\u636e \u5927\u5c0f (\u6247\u533a)\u3002delta(rsect+wsect)\/delta(rio+wio)<\/div>\n
avgqu-sz: \u5e73\u5747I\/O\u961f\u5217\u957f\u5ea6\u3002\u5373 delta(aveq)\/s\/1000 (\u56e0\u4e3aaveq\u7684\u5355\u4f4d\u4e3a\u6beb\u79d2)\u3002<\/div>\n
await: \u5e73\u5747\u6bcf\u6b21\u8bbe\u5907I\/O\u64cd\u4f5c\u7684\u7b49\u5f85\u65f6\u95f4 (\u6beb\u79d2)\u3002\u5373 delta(ruse+wuse)\/delta(rio+wio)<\/div>\n
svctm: \u5e73\u5747\u6bcf\u6b21\u8bbe\u5907I\/O\u64cd\u4f5c\u7684\u670d\u52a1 \u65f6\u95f4 (\u6beb\u79d2)\u3002\u5373 delta(use)\/delta(rio+wio)<\/div>\n
%util: \u00a0 \u00a0\u4e00\u79d2\u4e2d\u6709\u767e\u5206\u4e4b\u591a\u5c11\u7684\u65f6\u95f4\u7528\u4e8e I\/O \u64cd\u4f5c\uff0c\u6216\u8005\u8bf4\u4e00\u79d2\u4e2d\u6709\u591a\u5c11\u65f6\u95f4 I\/O \u961f\u5217\u662f\u975e\u7a7a\u7684\u3002\u5373 delta(use)\/s\/1000 (\u56e0\u4e3ause\u7684\u5355\u4f4d\u4e3a\u6beb\u79d2)<\/div>\n
<\/div>\n
\u5982\u679c%util \u63a5\u8fd1100%\uff0c\u8bf4\u660e\u4ea7\u751f\u7684I\/O\u8bf7\u6c42\u592a\u591a\uff0cI\/O\u7cfb\u7edf \u5df2\u7ecf\u6ee1\u8d1f\u8377\uff0c\u8be5\u78c1\u76d8<\/div>\n
\u53ef\u80fd\u5b58\u5728\u74f6\u9888\uff1bidle \u5c0f\u4e8e70% IO\u538b\u529b\u5c31\u8f83\u5927\u4e86,\u4e00\u822c\u8bfb\u53d6\u901f\u5ea6\u6709\u8f83\u591a\u7684wait\u3002<\/div>\n
<\/div>\n
\u540c\u65f6\u53ef\u4ee5\u7ed3\u5408vmstat \u67e5\u770b\u67e5\u770bb\u53c2\u6570 (\u7b49\u5f85\u8d44\u6e90\u7684\u8fdb\u7a0b\u6570 )\u548cwa\u53c2\u6570(IO\u7b49\u5f85\u6240\u5360\u7528\u7684CPU\u65f6\u95f4\u7684\u767e\u5206\u6bd4,\u9ad8\u8fc730%\u65f6IO\u538b\u529b\u9ad8 )<\/div>\n
<\/div>\n
\u53e6\u5916\u8fd8\u53ef\u4ee5\u53c2\u8003<\/div>\n
\u4e00\u822c:<\/div>\n
svctm < await (\u56e0\u4e3a\u540c\u65f6\u7b49\u5f85\u7684\u8bf7\u6c42\u7684\u7b49\u5f85\u65f6\u95f4\u88ab\u91cd\u590d\u8ba1\u7b97\u4e86)\uff0c<\/div>\n
svctm\u7684\u5927\u5c0f\u4e00\u822c\u548c\u78c1\u76d8\u6027\u80fd \u6709\u5173 :CPU\/\u5185\u5b58 \u7684\u8d1f\u8377\u4e5f\u4f1a\u5bf9\u5176\u6709\u5f71\u54cd\uff0c\u8bf7\u6c42\u8fc7\u591a\u4e5f\u4f1a\u95f4\u63a5\u5bfc\u81f4 svctm \u7684\u589e\u52a0\u3002<\/div>\n
await: await\u7684\u5927\u5c0f\u4e00\u822c\u53d6\u51b3\u4e8e\u670d\u52a1\u65f6\u95f4(svctm) \u4ee5\u53ca I\/O \u961f\u5217\u7684\u957f\u5ea6\u548c I\/O \u8bf7\u6c42\u7684\u53d1\u51fa\u6a21\u5f0f \u3002<\/div>\n
\u5982\u679csvctm \u6bd4\u8f83\u63a5\u8fd1await\uff0c\u8bf4\u660eI\/O \u51e0\u4e4e\u6ca1\u6709\u7b49\u5f85\u65f6\u95f4\uff1b<\/div>\n
\u5982\u679cawait \u8fdc\u5927\u4e8esvctm\uff0c\u8bf4\u660eI\/O\u961f\u5217\u592a\u957f\uff0c\u5e94\u7528 \u5f97\u5230\u7684\u54cd\u5e94\u65f6\u95f4\u53d8\u6162<\/div>\n
\u5982\u679c\u54cd\u5e94\u65f6\u95f4\u8d85\u8fc7\u4e86\u7528\u6237 \u53ef\u4ee5\u5bb9\u8bb8\u7684\u8303\u56f4\uff0c\u8fd9\u65f6\u53ef\u4ee5\u8003\u8651\u66f4\u6362\u66f4\u5feb\u7684\u78c1\u76d8\uff0c\u8c03\u6574\u5185\u6838 elevator\u7b97\u6cd5\uff0c\u4f18\u5316 \u5e94\u7528\uff0c\u6216\u8005\u5347\u7ea7 CPU \u3002<\/div>\n
\u961f\u5217\u957f\u5ea6(avgqu-sz)\u4e5f\u53ef\u4f5c\u4e3a\u8861\u91cf\u7cfb\u7edf I\/O \u8d1f\u8377\u7684\u6307\u6807\uff0c\u4f46\u7531\u4e8e avgqu-sz \u662f\u6309\u7167\u5355\u4f4d\u65f6\u95f4\u7684\u5e73\u5747\u503c\uff0c\u6240\u4ee5\u4e0d\u80fd\u53cd\u6620\u77ac\u95f4\u7684 I\/O \u6d2a\u6c34\u3002<\/div>\n
<\/div>\n
\u522b\u4eba\u4e00\u4e2a\u4e0d\u9519\u7684\u4f8b\u5b50(I\/O \u7cfb\u7edfvs\u8d85\u5e02\u6392\u961f)<\/div>\n
\u4e3e\u4e00\u4e2a\u4f8b\u5b50\uff0c\u6211\u4eec\u5728\u8d85\u5e02\u6392\u961f checkout \u65f6\uff0c\u600e\u4e48\u51b3\u5b9a\u8be5\u53bb\u54ea\u4e2a\u4ea4\u6b3e\u53f0\u5462? \u9996\u5f53\u662f\u770b\u6392\u7684\u961f\u4eba\u6570\uff0c5\u4e2a\u4eba\u603b\u6bd420\u4eba\u8981\u5feb\u5427?\u9664\u4e86\u6570\u4eba\u5934\uff0c\u6211\u4eec\u4e5f\u5e38\u5e38\u770b\u770b\u524d\u9762\u4eba\u8d2d\u4e70\u7684\u4e1c\u897f\u591a\u5c11\uff0c\u5982\u679c\u524d\u9762\u6709\u4e2a\u91c7\u8d2d\u4e86\u4e00\u661f\u671f\u98df\u54c1\u7684\u5927\u5988\uff0c\u90a3\u4e48\u53ef\u4ee5\u8003\u8651\u6362\u4e2a \u961f\u6392\u4e86\u3002\u8fd8\u6709\u5c31\u662f\u6536\u94f6\u5458\u7684\u901f\u5ea6\u4e86\uff0c\u5982\u679c\u78b0\u4e0a\u4e86\u8fde\u94b1\u90fd\u70b9\u4e0d\u6e05\u695a\u7684\u65b0\u624b\uff0c\u90a3\u5c31\u6709\u7684\u7b49\u4e86\u3002\u53e6\u5916\uff0c\u65f6\u673a\u4e5f\u5f88\u91cd\u8981\uff0c\u53ef\u80fd 5\u5206\u949f\u524d\u8fd8\u4eba\u6ee1\u4e3a\u60a3\u7684\u6536\u6b3e\u53f0\uff0c\u73b0\u5728\u5df2\u662f\u4eba\u53bb\u697c\u7a7a\uff0c\u8fd9\u65f6\u5019\u4ea4\u6b3e\u53ef\u662f\u5f88\u723d\u554a\uff0c\u5f53\u7136\uff0c\u524d\u63d0\u662f\u90a3\u8fc7\u53bb\u7684 5 \u5206\u949f\u91cc\u6240\u505a\u7684\u4e8b\u60c5\u6bd4\u6392\u961f\u8981\u6709\u610f\u4e49(\u4e0d\u8fc7\u6211\u8fd8\u6ca1\u53d1\u73b0\u4ec0\u4e48\u4e8b\u60c5\u6bd4\u6392\u961f\u8fd8\u65e0\u804a\u7684)\u3002<\/div>\n
I\/O \u7cfb\u7edf\u4e5f\u548c\u8d85\u5e02\u6392\u961f\u6709\u5f88\u591a\u7c7b\u4f3c\u4e4b\u5904:<\/div>\n
r\/s+w\/s \u7c7b\u4f3c\u4e8e\u4ea4\u6b3e\u4eba\u7684\u603b\u6570<\/div>\n
\u5e73\u5747\u961f\u5217\u957f\u5ea6(avgqu-sz)\u7c7b\u4f3c\u4e8e\u5355\u4f4d\u65f6\u95f4\u91cc\u5e73\u5747\u6392\u961f\u4eba\u7684\u4e2a\u6570<\/div>\n
\u5e73\u5747\u670d\u52a1\u65f6\u95f4(svctm)\u7c7b\u4f3c\u4e8e\u6536\u94f6\u5458\u7684\u6536\u6b3e\u901f\u5ea6<\/div>\n
\u5e73\u5747\u7b49\u5f85\u65f6\u95f4(await)\u7c7b\u4f3c\u4e8e\u5e73\u5747\u6bcf\u4eba\u7684\u7b49\u5f85\u65f6\u95f4<\/div>\n
\u5e73\u5747I\/O\u6570\u636e(avgrq-sz)\u7c7b\u4f3c\u4e8e\u5e73\u5747\u6bcf\u4eba\u6240\u4e70\u7684\u4e1c\u897f\u591a\u5c11<\/div>\n
I\/O \u64cd\u4f5c\u7387 (%util)\u7c7b\u4f3c\u4e8e\u6536\u6b3e\u53f0\u524d\u6709\u4eba\u6392\u961f\u7684\u65f6\u95f4\u6bd4\u4f8b\u3002<\/div>\n
\u6211\u4eec\u53ef\u4ee5\u6839\u636e\u8fd9\u4e9b\u6570\u636e\u5206\u6790\u51fa I\/O \u8bf7\u6c42\u7684\u6a21\u5f0f\uff0c\u4ee5\u53ca I\/O \u7684\u901f\u5ea6\u548c\u54cd\u5e94\u65f6\u95f4\u3002<\/div>\n
\u4e0b\u9762\u662f\u522b\u4eba\u5199\u7684\u8fd9\u4e2a\u53c2\u6570\u8f93\u51fa\u7684\u5206\u6790<\/div>\n
# iostat -x 1<\/div>\n
avg-cpu: \u00a0 %user %nice %sys %idle<\/div>\n
16.24 0.00 4.31 79.44<\/div>\n
Device: rrqm\/s wrqm\/s r\/s w\/s \u00a0 rsec\/s \u00a0 wsec\/s rkB\/s wkB\/s avgrq-sz avgqu-sz await \u00a0 svctm \u00a0 %util<\/div>\n
\/dev\/cciss\/c0d0<\/div>\n
0.00 \u00a0 44.90 \u00a0 1.02 27.55 8.16 \u00a0 579.59 \u00a0 \u00a0 4.08 289.80 20.57 22.35 78.21 5.00 \u00a0 14.29<\/div>\n
\/dev\/cciss\/c0d0p1<\/div>\n
0.00 \u00a0 44.90 \u00a0 1.02 27.55 8.16 \u00a0 579.59 \u00a0 \u00a0 4.08 289.80 20.57 22.35 78.21 5.00 \u00a0 14.29<\/div>\n
\/dev\/cciss\/c0d0p2<\/div>\n
0.00 0.00 \u00a0 0.00 \u00a0 0.00 0.00 0.00 \u00a0 \u00a0 0.00 \u00a0 \u00a0 0.00 \u00a0 \u00a0 0.00 \u00a0 \u00a0 0.00 0.00 0.00 0.00<\/div>\n
\u4e0a\u9762\u7684 iostat \u8f93\u51fa\u8868\u660e\u79d2\u6709 28.57 \u6b21\u8bbe\u5907 I\/O \u64cd\u4f5c: \u603bIO(io)\/s = r\/s(\u8bfb) +w\/s(\u5199) = 1.02+27.55 = 28.57 (\u6b21\/\u79d2) \u5176\u4e2d\u5199\u64cd\u4f5c\u5360\u4e86\u4e3b\u4f53 (w:r = 27:1)\u3002<\/div>\n
\u5e73\u5747\u6bcf\u6b21\u8bbe\u5907 I\/O \u64cd\u4f5c\u53ea\u9700\u8981 5ms \u5c31\u53ef\u4ee5\u5b8c\u6210\uff0c\u4f46\u6bcf\u4e2aI\/O \u8bf7\u6c42\u5374\u9700\u8981\u7b49\u4e0a 78ms\uff0c\u4e3a\u4ec0\u4e48? \u56e0\u4e3a\u53d1\u51fa\u7684 I\/O \u8bf7\u6c42\u592a\u591a (\u6bcf\u79d2\u949f\u7ea629 \u4e2a)\uff0c\u5047\u8bbe\u8fd9\u4e9b\u8bf7\u6c42\u662f\u540c\u65f6\u53d1\u51fa\u7684\uff0c\u90a3\u4e48\u5e73\u5747\u7b49\u5f85\u65f6\u95f4\u53ef\u4ee5\u8fd9\u6837\u8ba1\u7b97:<\/div>\n
\u5e73\u5747\u7b49\u5f85\u65f6\u95f4 = \u5355\u4e2aI\/O \u670d\u52a1\u65f6\u95f4 * ( 1 + 2 + ... + \u8bf7\u6c42\u603b\u6570-1) \/ \u8bf7\u6c42\u603b\u6570<\/div>\n
\u5e94\u7528\u5230\u4e0a\u9762\u7684\u4f8b\u5b50: \u5e73\u5747\u7b49\u5f85\u65f6\u95f4 = 5ms * (1+2+...+28)\/29 = 70ms\uff0c\u548c iostat \u7ed9\u51fa\u768478ms \u7684\u5e73\u5747\u7b49\u5f85\u65f6\u95f4\u5f88\u63a5\u8fd1\u3002\u8fd9\u53cd\u8fc7\u6765\u8868\u660e I\/O \u662f\u540c\u65f6\u53d1\u8d77\u7684\u3002<\/div>\n
\u6bcf\u79d2\u53d1\u51fa\u7684 I\/O \u8bf7\u6c42\u5f88\u591a (\u7ea629 \u4e2a)\uff0c\u5e73\u5747\u961f\u5217\u5374\u4e0d\u957f (\u53ea\u67092 \u4e2a\u5de6\u53f3)\uff0c\u8fd9\u8868\u660e\u8fd9 29 \u4e2a\u8bf7\u6c42\u7684\u5230\u6765\u5e76\u4e0d\u5747\u5300\uff0c\u5927\u90e8\u5206\u65f6\u95f4 I\/O \u662f\u7a7a\u95f2\u7684\u3002<\/div>\n
\u4e00\u79d2\u4e2d\u6709 14.29% \u7684\u65f6\u95f4 I\/O \u961f\u5217\u4e2d\u662f\u6709\u8bf7\u6c42\u7684\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c85.71% \u7684\u65f6\u95f4\u91cc I\/O \u7cfb\u7edf\u65e0\u4e8b\u53ef\u505a\uff0c\u6240\u6709 29 \u4e2aI\/O \u8bf7\u6c42\u90fd\u5728142\u6beb\u79d2\u4e4b\u5185\u5904\u7406\u6389\u4e86\u3002<\/div>\n
delta(ruse+wuse)\/delta(io) = await = 78.21 => delta(ruse+wuse)\/s=78.21 * delta(io)\/s = 78.21*28.57 =2232.8\uff0c\u8868\u660e\u6bcf\u79d2\u5185\u7684I\/O\u8bf7\u6c42\u603b\u5171\u9700\u8981\u7b49\u5f852232.8ms\u3002\u6240\u4ee5\u5e73\u5747\u961f\u5217\u957f\u5ea6\u5e94\u4e3a 2232.8ms\/1000ms = 2.23\uff0c\u800ciostat \u7ed9\u51fa\u7684\u5e73\u5747\u961f\u5217\u957f\u5ea6 (avgqu-sz) \u5374\u4e3a22.35\uff0c\u4e3a\u4ec0\u4e48?\u56e0\u4e3aiostat \u4e2d\u6709bug\uff0cavgqu-sz\u503c\u5e94\u4e3a2.23\uff0c\u800c\u4e0d\u662f22.35\u3002<\/div>\n
\u203b\u9644\u5e26\u8bf4\u660e\u4e0b\uff0c\u6211\u7528iostat\u5bf9\u670d\u52a1\u5668\u68c0\u6d4b\u65f6\uff0c\u4e00\u822c\u7528iostat -d\u547d\u4ee4\uff1b\u800c\u8fd4\u56de\u7684\u7ed3\u679c\uff0c\u6211\u5173\u6ce8\u7684\u4e00\u822c\u662ftps\u3001blk_read\/s\u3001blk_wrth\/s \u8fd9\u4e09\u9879\uff0c\u6211\u4e00\u822c\u662f\u62ff\u4e09\u53f0\u4e0d\u540c\u578b\u53f7\u7684\u670d\u52a1\u5668\u5728\u76f8\u540c\u73af\u5883\u4e0b\u4f5c\u5bf9\u6bd4\u6d4b\u8bd5\uff0c\u8fd9\u6837\u6027\u80fd\u4e0a\u7684\u5dee\u5f02\uff0c\u4e00\u4e0b\u5b50\u5c31\u51fa\u6765\u4e86\u3002<\/div>\n","protected":false},"excerpt":{"rendered":"

\u670d\u52a1\u5668\u67e5\u770bIO\u7684\u5de5\u5177 yum install iotop yum -y install sysstat \u4e24\u4e2a\uff0c\u2026 Read More »<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[],"class_list":["post-247","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/www.shuran.cn\/index.php?rest_route=\/wp\/v2\/posts\/247","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.shuran.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.shuran.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.shuran.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.shuran.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=247"}],"version-history":[{"count":1,"href":"https:\/\/www.shuran.cn\/index.php?rest_route=\/wp\/v2\/posts\/247\/revisions"}],"predecessor-version":[{"id":248,"href":"https:\/\/www.shuran.cn\/index.php?rest_route=\/wp\/v2\/posts\/247\/revisions\/248"}],"wp:attachment":[{"href":"https:\/\/www.shuran.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=247"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shuran.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=247"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shuran.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=247"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}