锘??xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>&#20122;&#27954;&#26085;&#26412;&#19968;&#21306;&#20108;&#21306;&#19977;&#21306;&#22312;&#32447;&#19981;&#21345;&#44;&#20122;&#27954;&#19968;&#32423;&#20813;&#36153;&#35270;&#39057;&#44;&#20122;&#27954;&#31934;&#21697;&#21320;&#22812;&#26080;&#30721;&#19987;&#21306;</title><link>http://www.tkk7.com/Castte/category/17849.html</link><description>-- 鏂版墜涓婅礬</description><language>zh-cn</language><lastBuildDate>Thu, 01 Mar 2007 14:15:06 GMT</lastBuildDate><pubDate>Thu, 01 Mar 2007 14:15:06 GMT</pubDate><ttl>60</ttl><item><title>HTTP 鐘舵�佷唬鐮佸強鍏跺畾涔夛紙杞澆錛?/title><link>http://www.tkk7.com/Castte/archive/2007/01/04/91768.html</link><dc:creator>RedWolf</dc:creator><author>RedWolf</author><pubDate>Thu, 04 Jan 2007 07:38:00 GMT</pubDate><guid>http://www.tkk7.com/Castte/archive/2007/01/04/91768.html</guid><wfw:comment>http://www.tkk7.com/Castte/comments/91768.html</wfw:comment><comments>http://www.tkk7.com/Castte/archive/2007/01/04/91768.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.tkk7.com/Castte/comments/commentRss/91768.html</wfw:commentRss><trackback:ping>http://www.tkk7.com/Castte/services/trackbacks/91768.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 鎽樿: Web鏈嶅姟鍣ㄥ搷搴旀祻瑙堝櫒鎴栧叾浠栧鎴風(fēng)▼搴忕殑璇鋒眰鏃訛紝鍏跺簲絳斾竴鑸敱浠ヤ笅鍑犱釜閮ㄥ垎緇勬垚錛氫竴涓姸鎬佽錛屽嚑涓簲絳斿ご錛屼竴涓┖琛岋紝鍐呭鏂囨。銆?nbsp;&nbsp;<a href='http://www.tkk7.com/Castte/archive/2007/01/04/91768.html'>闃呰鍏ㄦ枃</a><img src ="http://www.tkk7.com/Castte/aggbug/91768.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.tkk7.com/Castte/" target="_blank">RedWolf</a> 2007-01-04 15:38 <a href="http://www.tkk7.com/Castte/archive/2007/01/04/91768.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>濡備綍鐢╨oadrunner鎵歸噺鐨勫彂閫侀偖浠?/title><link>http://www.tkk7.com/Castte/archive/2006/11/29/84254.html</link><dc:creator>RedWolf</dc:creator><author>RedWolf</author><pubDate>Wed, 29 Nov 2006 03:01:00 GMT</pubDate><guid>http://www.tkk7.com/Castte/archive/2006/11/29/84254.html</guid><wfw:comment>http://www.tkk7.com/Castte/comments/84254.html</wfw:comment><comments>http://www.tkk7.com/Castte/archive/2006/11/29/84254.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.tkk7.com/Castte/comments/commentRss/84254.html</wfw:commentRss><trackback:ping>http://www.tkk7.com/Castte/services/trackbacks/84254.html</trackback:ping><description><![CDATA[
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		<div style="FONT-SIZE: 12px">鍦ㄨ鍧涙販浜嗗鏃ワ紝鍙戠幇瓚婃潵瓚婂鐨勬�ц兘嫻嬭瘯宸ョ▼甯堝熀鏈笂閮借兘澶熸帉鎻″埄鐢ㄦ祴璇曞伐鍏鋒潵浣滆礋杞藉帇鍔涙祴璇曪紝浣嗗鏁頒漢瀵規(guī)�庢牱鍘誨垎鏋愬伐鍏鋒敹闆嗗埌鐨勬祴璇曠粨鏋滄劅鍒版棤浠庝笅鎵嬶紝涓嬮潰鎴戝氨鎶婁釜浜哄伐浣滀腑鐨勪綋浼氬拰鏀墮泦鍒扮殑鏈夊叧璧勬枡鏁寸悊鍑烘潵錛屽笇鏈涜兘瀵瑰ぇ瀹跺垎鏋愭祴璇曠粨鏋滄湁鎵�甯姪銆?br /><br /><font size="4"><b>鍒嗘瀽鍘熷垯錛?/b></font><br />聽 聽 鈥?鍏蜂綋闂鍏蜂綋鍒嗘瀽錛堣繖鏄敱浜庝笉鍚岀殑搴旂敤緋葷粺錛屼笉鍚岀殑嫻嬭瘯鐩殑錛屼笉鍚岀殑鎬ц兘鍏蟲敞鐐癸級<br />聽 聽 鈥?鏌ユ壘鐡墮鏃舵寜浠ヤ笅欏哄簭錛岀敱鏄撳埌闅俱�?br />聽 聽 鏈嶅姟鍣ㄧ‖浠剁摱棰?銆夌綉緇滅摱棰堬紙瀵瑰眬鍩熺綉錛屽彲浠ヤ笉鑰冭檻錛?銆夋湇鍔″櫒鎿嶄綔緋葷粺鐡墮錛堝弬鏁伴厤緗級-銆変腑闂翠歡鐡墮錛堝弬鏁伴厤緗紝鏁版嵁搴擄紝web鏈嶅姟鍣ㄧ瓑錛?銆夊簲鐢ㄧ摱棰堬紙SQL璇彞銆佹暟鎹簱璁捐銆佷笟鍔￠�昏緫銆佺畻娉曠瓑錛?br />聽 聽 娉細浠ヤ笂榪囩▼騫朵笉鏄瘡涓垎鏋愪腑閮介渶瑕佺殑錛岃鏍規(guī)嵁嫻嬭瘯鐩殑鍜岃姹傛潵紜畾鍒嗘瀽鐨勬繁搴︺�傚涓�浜涜姹備綆鐨勶紝鎴戜滑鍒嗘瀽鍒板簲鐢ㄧ郴緇熷湪灝嗘潵澶х殑璐熻澆鍘嬪姏錛堝茍鍙戠敤鎴鋒暟銆佹暟鎹噺錛変笅錛岀郴緇熺殑紜歡鐡墮鍦ㄥ摢鍎垮氨澶熶簡銆?br />聽 聽 鈥?鍒嗘鎺掗櫎娉?寰堟湁鏁?br /><br /><font size="4"><b>鍒嗘瀽鐨勪俊鎭潵婧愶細</b></font><br />聽 聽 鈥? 鏍規(guī)嵁鍦烘櫙榪愯榪囩▼涓殑閿欒鎻愮ず淇℃伅<br />聽 聽 鈥? 鏍規(guī)嵁嫻嬭瘯緇撴灉鏀墮泦鍒扮殑鐩戞帶鎸囨爣鏁版嵁<br /><br /><font size="4"><b>涓�錛庨敊璇彁紺哄垎鏋?/b></font><br />鍒嗘瀽瀹炰緥錛?br />1 鈥rror: Failed to connect to server "10.10.10.30:8080": [10060] Connection<br />聽聽鈥rror: timed out Error: Server "10.10.10.30" has shut down the connection prematurely<br /><br />聽聽鍒嗘瀽錛?br />鈥銆佸簲鐢ㄦ湇鍔℃鎺夈�?br />聽 聽錛堝皬鐢ㄦ埛鏃訛細紼嬪簭涓婄殑闂銆傜▼搴忎笂澶勭悊鏁版嵁搴撶殑闂錛?br />鈥銆佸簲鐢ㄦ湇鍔℃病鏈夋<br />聽 聽錛堝簲鐢ㄦ湇鍔″弬鏁拌緗棶棰橈級<br />聽 聽 渚嬶細鍦ㄨ澶氬鎴風(fēng)榪炴帴Weblogic搴旂敤鏈嶅姟鍣ㄨ鎷掔粷錛岃�屽湪鏈嶅姟鍣ㄧ娌℃湁閿欒鏄劇ず錛屽垯鏈夊彲鑳芥槸Weblogic涓殑server鍏冪礌鐨凙cceptBacklog灞炴�у�艱寰楄繃浣庛�傚鏋滆繛鎺ユ椂鏀跺埌connection refused娑堟伅錛岃鏄庡簲鎻愰珮璇ュ�鹼紝姣忔澧炲姞25錛?br />鈥銆佹暟鎹簱鐨勮繛鎺?br />聽 聽(1銆佸湪搴旂敤鏈嶅姟鐨勬�ц兘鍙傛暟鍙兘澶皬浜?2銆佹暟鎹簱鍚姩鐨勬渶澶ц繛鎺ユ暟錛堣窡紜歡鐨勫唴瀛樻湁鍏籌級)<br /><br />2聽聽Error: Page download timeout (120 seconds) has expired <br /><br />鍒嗘瀽錛氬彲鑳芥槸浠ヤ笅鍘熷洜閫犳垚<br />鈥銆佸簲鐢ㄦ湇鍔″弬鏁拌緗お澶у鑷存湇鍔″櫒鐨勭摱棰?br />鈥銆侀〉闈腑鍥劇墖澶<br />鈥銆佸湪紼嬪簭澶勭悊琛ㄧ殑鏃跺�欐鏌ュ瓧孌靛お澶у<br /><br /><font size="4"><b>浜岋紟鐩戞帶鎸囨爣鏁版嵁鍒嗘瀽</b></font><br /><b>1錛庢渶澶у茍鍙戠敤鎴鋒暟錛?/b><br />搴旂敤緋葷粺鍦ㄥ綋鍓嶇幆澧冿紙紜歡鐜銆佺綉緇滅幆澧冦�佽蔣浠剁幆澧冿紙鍙傛暟閰嶇疆錛夛級涓嬭兘鎵垮彈鐨勬渶澶у茍鍙戠敤鎴鋒暟銆?br />鍦ㄦ柟妗堣繍琛屼腑錛屽鏋滃嚭鐜頒簡澶т簬3涓敤鎴風(fēng)殑涓氬姟鎿嶄綔澶辮觸錛屾垨鍑虹幇浜嗘湇鍔″櫒shutdown鐨勬儏鍐碉紝鍒欒鏄庡湪褰撳墠鐜涓嬶紝緋葷粺鎵垮彈涓嶄簡褰撳墠騫跺彂鐢ㄦ埛鐨勮礋杞藉帇鍔涳紝閭ｄ箞鏈�澶у茍鍙戠敤鎴鋒暟灝辨槸鍓嶄竴涓病鏈夊嚭鐜拌繖縐嶇幇璞＄殑騫跺彂鐢ㄦ埛鏁般�?br />濡傛灉嫻嬪緱鐨勬渶澶у茍鍙戠敤鎴鋒暟鍒拌揪浜嗘�ц兘瑕佹眰錛屼笖鍚勬湇鍔″櫒璧勬簮鎯呭喌鑹ソ錛屼笟鍔℃搷浣滃搷搴旀椂闂翠篃杈懼埌浜嗙敤鎴瘋姹傦紝閭ｄ箞OK銆傚惁鍒欙紝鍐嶆牴鎹悇鏈嶅姟鍣ㄧ殑璧勬簮鎯呭喌鍜屼笟鍔℃搷浣滃搷搴旀椂闂磋繘涓�姝ュ垎鏋愬師鍥犳墍鍦ㄣ�?br /><br /><b>2錛庝笟鍔℃搷浣滃搷搴旀椂闂達細</b><br />鈥?鍒嗘瀽鏂規(guī)榪愯鎯呭喌搴斾粠騫沖潎浜嬪姟鍝嶅簲鏃墮棿鍥懼拰浜嬪姟鎬ц兘鎽樿鍥懼紑濮嬨�備嬌鐢ㄢ�滀簨鍔℃�ц兘鎽樿鈥濆浘錛屽彲浠ョ‘瀹氬湪鏂規(guī)鎵ц鏈熼棿鍝嶅簲鏃墮棿榪囬暱鐨勪簨鍔°�?br />鈥?緇嗗垎浜嬪姟騫跺垎鏋愭瘡涓〉闈㈢粍浠剁殑鎬ц兘銆傛煡鐪嬭繃闀跨殑浜嬪姟鍝嶅簲鏃墮棿鏄敱鍝簺欏甸潰緇勪歡寮曡搗鐨勶紵闂鏄惁涓庣綉緇滄垨鏈嶅姟鍣ㄦ湁鍏籌紵<br />鈥?濡傛灉鏈嶅姟鍣ㄨ�楁椂榪囬暱錛岃浣跨敤鐩稿簲鐨勬湇鍔″櫒鍥劇‘瀹氭湁闂鐨勬湇鍔″櫒搴﹂噺騫舵煡鏄庢湇鍔″櫒鎬ц兘涓嬮檷鐨勫師鍥犮�傚鏋滅綉緇滆�楁椂榪囬暱錛岃浣跨敤鈥滅綉緇滅洃瑙嗗櫒鈥濆浘紜畾瀵艱嚧鎬ц兘鐡墮鐨勭綉緇滈棶棰?br /><b>3錛庢湇鍔″櫒璧勬簮鐩戞帶鎸囨爣錛?/b><br /><b>鍐呭瓨錛?/b><br />聽 聽 1 UNIX璧勬簮鐩戞帶涓寚鏍囧唴瀛橀〉浜ゆ崲閫熺巼錛圥aging rate錛夛紝濡傛灉璇ュ�煎伓灝?dāng)璧伴珮锛岃〃鏄庡綋鏃舵湁绾拷E嬬珵浜夊唴瀛樸�傚鏋滄寔緇緢楂橈紝鍒欏唴瀛樺彲鑳芥槸鐡墮銆備篃鍙兘鏄唴瀛樿闂懡涓巼浣庛�?br /><br />聽 聽 2 Windows璧勬簮鐩戞帶涓紝濡傛灉Process\Private Bytes璁℃暟鍣ㄥ拰Process\Working Set璁℃暟鍣ㄧ殑鍊煎湪闀挎椂闂村唴鎸佺畫鍗囬珮錛屽悓鏃禡emory\Available bytes璁℃暟鍣ㄧ殑鍊兼寔緇檷浣庯紝鍒欏緢鍙兘瀛樺湪鍐呭瓨娉勬紡銆?br /><br />鍐呭瓨璧勬簮鎴愪負緋葷粺鎬ц兘鐨勭摱棰堢殑寰佸厗:<br />聽 聽 寰堥珮鐨勬崲欏電巼(high pageout rate);<br />聽 聽 榪涚▼榪涘叆涓嶆椿鍔ㄧ姸鎬?<br />聽 聽 浜ゆ崲鍖烘墍鏈夌鐩樼殑媧誨姩嬈℃暟鍙珮;<br />聽 聽 鍙珮鐨勫叏灞�緋葷粺CPU鍒╃敤鐜? <br />聽 聽 鍐呭瓨涓嶅鍑洪敊(out of memory errors) <br /><br /><b>澶勭悊鍣細</b><br />聽 聽 1 UNIX璧勬簮鐩戞帶錛圵indows鎿嶄綔緋葷粺鍚岀悊錛変腑鎸囨爣CPU鍗犵敤鐜囷紙CPU utilization錛夛紝濡傛灉璇ュ�兼寔緇秴榪?5%錛岃〃鏄庣摱棰堟槸CPU銆傚彲浠ヨ�冭檻澧炲姞涓�涓鐞嗗櫒鎴栨崲涓�涓洿蹇殑澶勭悊鍣ㄣ�傚鏋滄湇鍔″櫒涓撶敤浜嶴QL Server,鍙帴鍙楃殑鏈�澶т笂闄愭槸80-85% <br />聽 聽 鍚堢悊浣跨敤鐨勮寖鍥村湪60%鑷?0%銆?br />聽 聽 2 Windows璧勬簮鐩戞帶涓紝濡傛灉System\Processor Queue Length澶т簬2錛岃�屽鐞嗗櫒鍒╃敤鐜囷紙Processor Time錛変竴鐩村緢浣庯紝鍒欏瓨鍦ㄧ潃澶勭悊鍣ㄩ樆濉炪�?br /><br />CPU璧勬簮鎴愪負緋葷粺鎬ц兘鐨勭摱棰堢殑寰佸厗:聽 聽<br />聽 聽聽聽寰堟參鐨勫搷搴旀椂闂?slow response time) <br />聽 聽聽聽CPU絀洪棽鏃墮棿涓洪浂(zero percent idle CPU) <br />聽 聽聽聽榪囬珮鐨勭敤鎴峰崰鐢–PU鏃墮棿(high percent user CPU) <br />聽 聽聽聽榪囬珮鐨勭郴緇熷崰鐢–PU鏃墮棿(high percent system CPU) <br />聽 聽 闀挎椂闂寸殑鏈夊緢闀跨殑榪愯榪涚▼闃熷垪(large run queue size sustained over time) <br /><br /><b>紓佺洏I(yè)/O錛?/b><br />聽 聽 1 UNIX璧勬簮鐩戞帶錛圵indows鎿嶄綔緋葷粺鍚岀悊錛変腑鎸囨爣紓佺洏浜ゆ崲鐜囷紙Disk rate錛夛紝濡傛灉璇ュ弬鏁板�間竴鐩村緢楂橈紝琛ㄦ槑I/O鏈夐棶棰樸�傚彲鑰冭檻鏇存崲鏇村揩鐨勭‖鐩樼郴緇熴�?br />聽 聽 2 Windows璧勬簮鐩戞帶涓紝濡傛灉 Disk Time鍜孉vg.Disk Queue Length鐨勫�煎緢楂橈紝鑰孭age Reads/sec欏甸潰璇誨彇鎿嶄綔閫熺巼寰堜綆錛屽垯鍙兘瀛樺湪紓佺洏鐡跺緞銆?<br /><br />I/O璧勬簮鎴愪負緋葷粺鎬ц兘鐨勭摱棰堢殑寰佸厗 :<br />聽 聽聽聽榪囬珮鐨勭鐩樺埄鐢ㄧ巼(high disk utilization) <br />聽 聽 澶暱鐨勭鐩樼瓑寰呴槦鍒?large disk queue length) <br />聽 聽 絳夊緟紓佺洏I(yè)/O鐨勬椂闂存墍鍗犵殑鐧懼垎鐜囧お楂?large percentage of time waiting for disk I/O) <br />聽 聽 澶珮鐨勭墿鐞咺/O閫熺巼:large physical I/O rate(not sufficient in itself) <br />聽 聽 榪囦綆鐨勭紦瀛樺懡涓巼(low buffer cache hit ratio(not sufficient in itself)) <br />聽 聽 澶暱鐨勮繍琛岃繘紼嬮槦鍒楋紝浣咰PU鍗寸┖闂?large run queue with idle CPU) <br /><br /><b>4錛庢暟鎹簱鏈嶅姟鍣細</b><br />SQL Server鏁版嵁搴擄細<br />聽 聽 1 SQLServer璧勬簮鐩戞帶涓寚鏍囩紦瀛樼偣鍑葷巼錛圕ache Hit Ratio錛夛紝璇ュ�艱秺楂樿秺濂姐�傚鏋滄寔緇綆浜?0%錛屽簲鑰冭檻澧炲姞鍐呭瓨銆?br />聽 聽 2 濡傛灉Full Scans/sec錛堝叏琛ㄦ壂鎻?縐掞級璁℃暟鍣ㄦ樉紺虹殑鍊兼瘮1鎴?楂橈紝鍒欏簲鍒嗘瀽浣犵殑鏌ヨ浠ョ‘瀹氭槸鍚︾‘瀹為渶瑕佸叏琛ㄦ壂鎻忥紝浠ュ強SQL鏌ヨ鏄惁鍙互琚紭鍖栥�?<br />聽 聽 3 Number of Deadlocks/sec(姝婚攣鐨勬暟閲?縐?錛氭閿佸搴旂敤紼嬪簭鐨勫彲浼哥緝鎬ч潪甯告湁瀹籌紝騫朵笖浼氬鑷存伓鍔ｇ殑鐢ㄦ埛浣撻獙銆傝璁℃暟鍣ㄧ殑鍊煎繀欏諱負0銆?br />聽 聽4 Lock Requests/sec(閿佽姹?縐?錛岄�氳繃浼樺寲鏌ヨ鏉ュ噺灝戣鍙栨鏁幫紝鍙互鍑忓皯璇ヨ鏁板櫒鐨勫�箋�?br /><br />Oracle鏁版嵁搴擄細<br />聽聽1 濡傛灉鑷敱鍐呭瓨鎺ヨ繎浜?鑰屼笖搴撳揩瀛樻垨鏁版嵁瀛楀吀蹇瓨鐨勫懡涓巼灝忎簬0.90錛岄偅涔堥渶瑕佸鍔燬HARED_POOL_SIZE鐨勫ぇ灝忋�?br />聽 聽 蹇瓨錛堝叡浜玈QL鍖猴級鍜屾暟鎹瓧鍏稿揩瀛樼殑鍛戒腑鐜囷細 <br />聽 聽select(sum(pins-reloads))/sum(pins) from v$librarycache; <br />聽 聽 select(sum(gets-getmisses))/sum(gets) from v$rowcache; <br />聽 聽 鑷敱鍐呭瓨錛毬?聽 select * from v$sgastat where name=鈥檉ree memory鈥? <br />2 濡傛灉鏁版嵁鐨勭紦瀛樺懡涓巼灝忎簬0.90錛岄偅涔堥渶瑕佸姞澶B_BLOCK_BUFFERS鍙傛暟鐨勫�鹼紙鍗曚綅錛氬潡錛夈�?br />聽聽緙撳啿鍖洪珮閫熺紦瀛樺懡涓巼錛?br />聽 聽 select name,value from v$sysstat where name in ('db block gets鈥?<br />聽 聽 'consistent gets','physical reads') ; <br />聽 聽 <br />聽 聽 Hit Ratio = 1-(physical reads / ( db block gets + consistent gets))<br />3 濡傛灉鏃ュ織緙撳啿鍖虹敵璇風(fēng)殑鍊艱緝澶э紝鍒欏簲鍔犲ぇLOG_BUFFER鍙傛暟鐨勫�箋�?br />聽 聽 鏃ュ織緙撳啿鍖虹殑鐢寵鎯呭喌 錛?br />聽 聽聽聽select name,value from v$sysstat where name = 'redo log space requests' ;<br />4 濡傛灉鍐呭瓨鎺掑簭鍛戒腑鐜囧皬浜?.95錛屽垯搴斿姞澶ORT_AREA_SIZE浠ラ伩鍏嶇鐩樻帓搴?銆?br />聽 聽鍐呭瓨鎺掑簭鍛戒腑鐜?錛?br />聽 聽聽聽select round((100*b.value)/decode((a.value+b.value), 0, 1, (a.value+b.value)), 2)from v$sysstat a, v$sysstat b where a.name='sorts (disk)' and b.name='sorts (memory)' <br />聽 聽<br />聽 聽 娉細涓婅堪SQL Server鍜孫racle鏁版嵁搴撳垎鏋愶紝鍙槸涓�浜涚畝鍗曘�佸熀鏈殑鍒嗘瀽錛岀壒鍒槸Oracle鏁版嵁搴撶殑鍒嗘瀽鍜屼紭鍖栵紝鏄竴闂ㄤ笓闂ㄧ殑鎶�鏈紝榪涗竴姝ョ殑鍒嗘瀽鍙煡鐩稿叧璧勬枡銆?br /><br /><font size="4"><b>璇存槑錛?/b></font><br />聽 聽 浠ヤ笂鍙槸涓漢鐨勪綋浼氬拰閮ㄥ垎璧勬枡鐨勬暣鐞嗭紝騫朵笉浠ｈ〃涓撳涔嬭█銆傜畻鎶涚爾寮曠帀錛屾湁涓嶅悓鐪嬫硶鍜屾洿娣卞叆鐨勫垎鏋愮殑錛屽笇鏈涘ぇ瀹跺媷瑕佸彂璦�錛屼互鎺ㄥ姩鎴戜滑鍥藉唴鐨勬�ц兘嫻嬭瘯宸ヤ綔銆?/div>
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