<slf4j.version>1.7.1</slf4j.version>
<log4j.version>1.2.17</log4j.version>
<logback.version>1.0.1</logback.version>
</properties>
<dependencyManagement>
<dependencies>
<!-- logging related -->
<!-- slf4j -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- common-logging 瀹為檯璋冪敤slf4j -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>${slf4j.version}</version>
<scope>runtime</scope>
</dependency>
<!-- java.util.logging 瀹為檯璋冪敤slf4j -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jul-to-slf4j</artifactId>
<version>${slf4j.version}</version>
<scope>runtime</scope>
</dependency>
<!-- slf4j-log4j緇戝畾 -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>log4j-over-slf4j</artifactId>
<version>${slf4j.version}</version>
<scope>runtime</scope>
</dependency>
<!-- logback -->
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
<version>${logback.version}</version>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<scope>runtime</scope>
<version>${logback.version}</version>
<optional>true</optional>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-access</artifactId>
<version>${logback.version}</version>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
</dependencies>
</dependencyManagement>
a.slf4j/logback 緇勫悎錛坙ogback.xml錛?br />
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
</dependency>
b.slf4j/log4j緇勫悎錛坙og4j.properties or log4j.xml錛?br />
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
</dependency>
<!-- log4j -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
</dependency>
<!-- slf4j-log4j緇戝畾 -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
</dependency>
c.濡傛灉鏄凡鐢ㄤ簡commons-logging/log4j鎯崇敤鐢╯lf4j/logback錛岄偅涔熷鏄撶敤涓嬮潰鐨勯厤緗?br />
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
</dependency>
<!-- common-logging 瀹為檯璋冪敤slf4j -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
</dependency>
<!-- log4j -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>log4j-over-slf4j</artifactId>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
</dependency>
]]>
a.涓嬭澆 BeanSoft鐨勭豢鑹茬増mysql (Copy 鎴愪袱浠?錛宮aster,slave) 鍙?/span>mysql\mysql50green涓嬪唴瀹瑰鍒?span style="font-family: 寰蔣闆呴粦, Verdana, sans-serif, 瀹嬩綋; line-height: normal; text-align: left; background-color: #ffffff; ">
b. 鍦╟md鍛戒護(hù)琛屾ā寮忎笅榪涘叆master \bin 鎵цmysqld install master鍛戒護(hù)銆備綔鐢ㄦ槸涓篗ysql瀹夎涓涓湇鍔★紝鏈嶅姟鍚嶆槸 master 銆傚悓鐞嗘搷浣渟lave 銆傦紙娉ㄦ剰 mysqld =mysqld-nt
錛?/font>
c. 鍦ㄨ繍琛岄噷榪愯REGEDIT錛屾墦寮WINDOWS娉ㄥ唽琛ㄧ紪杈戝櫒錛?/span>
鍦℉KEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\master 鎵撳紑錛?/span>
淇敼涓嬮潰鐨処magePath鏁板鹼細(xì) "X:\ master \bin\mysqld" --defaults-file="D:\master\my.ini" master
紜畾錛岄鍑烘敞鍐岃〃緙栬緫鍣ㄣ?/span> (鍚岀悊鎿嶄綔slave)
d.瀹氫箟my.ini鎷瘋礉鍒?/span> X:\ master 涓嬮潰
port = 3308
[mysqld]
port =3308
server-id = 1
binlog-do-db=test1 ##瑕佸悓姝ョ殑鏁版嵁搴撳悕涓簍est1
log-bin =mysql-bin
port = 3309
[mysqld]
port = 3309
server-id = 2
master-host = 127.0.0.1
master-user = slaver1
master-password = slaver1pwd
master-port = 3308
replicate-do-db=test1 ##瑕佸悓姝ョ殑鏁版嵁搴?/div>f.
鐒跺悗鍦╩aster
Console 鎵ц錛?GRANT FILE,SELECT,REPLICATION SLAVE ON *.* TO 'slaver1'@'127.0.0.1' IDENTIFIED BY 'slaver1pwd';
寮涓涓柊璐﹀彿錛堢敤鎴峰悕錛歴laver1 瀵嗙爜錛歴laver1pwd錛夊茍璧嬩簬鏉冮檺
榪愯Mysqld.exe,騫跺垱寤烘柊鏁版嵁搴搕est1,鍙湪Console涓嬭緭鍏ワ細(xì)show master status\G鏌ョ湅鐘舵侊紒
*************************** 1. row*****************
File: mysql-bin.000305
Position: 98
Binlog_Do_DB: test1
Binlog_Ignore_DB:
榪愯Slaver 鐨凪ysqld.exe,鍦–onsole紿楀彛鎵ц show slave status\G 鏌ョ湅鐘舵侊紝濡備笅錛?/p>
]]>
2 set pan=%0
3 set pan=%pan:~1,3%
4 set devenvdir=%pan%DEV_FOR_JEE
5
6 ::windows 7鎵嬪姩杈撳叆鐩樼錛屾斁寮娉ㄩ噴
7 set devenvdir=X:\DEV_FOR_JEE
8
9 wmic ENVIRONMENT where "name='JAVA_HOME'" delete
10 wmic ENVIRONMENT where "name='MVN_HOME'" delete
11 wmic ENVIRONMENT where "name='ClassPath'" delete
12 wmic ENVIRONMENT where "name='M2_REPO'" delete
13 wmic ENVIRONMENT create name="JAVA_HOME",username="<system>",VariableValue="%devenvdir%\java1.6"
14 wmic ENVIRONMENT create name="MVN_HOME",username="<system>",VariableValue="%devenvdir%\maven3.0.4"
15 wmic ENVIRONMENT create name="M2_REPO",username="<system>",VariableValue="%devenvdir%\repository"
16 wmic ENVIRONMENT create name="ClassPath",username="<system>",VariableValue="%JAVA_HOME%\lib\dt.jar;%JAVA_HOME%\lib\tools.jar;%JAVA_HOME%\bin;.;"
17 wmic ENVIRONMENT where "name='Path' and username='<system>'" set VariableValue="%%JAVA_HOME%%\bin;%%MVN_HOME%%\bin;%%M2_REPO%%;%path%"
18 pause
19
]]>
1.OutOfMemoryError: Java heap space
2.OutOfMemoryError: PermGen space
3.OutOfMemoryError: unable to create new native thread.
瀵逛簬鍓嶄袱縐嶆儏鍐碉紝鍦ㄥ簲鐢ㄦ湰韜病鏈夊唴瀛樻硠闇茬殑鎯呭喌涓嬪彲浠ョ敤璁劇疆tomcat jvm鍙傛暟鏉ヨВ鍐熾傦紙-Xms -Xmx -XX:PermSize -XX:MaxPermSize錛?br /> 鏈鍚庝竴縐嶅彲鑳介渶瑕佽皟鏁存搷浣滅郴緇熷拰tomcat jvm鍙傛暟鍚屾椂璋冩暣鎵嶈兘杈懼埌鐩殑銆?br />
絎竴縐嶏細(xì)鏄爢婧㈠嚭銆?br /> 鍦↗VM涓鏋?8錛呯殑鏃墮棿鏄敤浜嶨C涓斿彲鐢ㄧ殑 Heap size 涓嶈凍2錛呯殑鏃跺欏皢鎶涘嚭姝ゅ紓甯鎬俊鎭?br /> 娌℃湁鍐呭瓨娉勯湶鐨勬儏鍐典笅錛岃皟鏁?Xms -Xmx鍙傛暟鍙互瑙ｅ喅銆?br /> -Xms:鍒濆鍫嗗ぇ灝?br /> -Xmx:鏈澶у爢澶у皬
浣嗗爢鐨勫ぇ灝忓彈涓嬮潰涓夋柟闈㈠獎鍝嶏細(xì)
1.鐩稿叧鎿嶄綔緋葷粺鐨勬暟鎹ā鍨嬶紙32-bt榪樻槸64-bit錛夐檺鍒訛紱錛?2浣嶇郴緇熶笅錛屼竴鑸檺鍒跺湪1.5G~2G錛涙垜鍦?003 server 緋葷粺涓嬶紙鐗╃悊鍐呭瓨錛?G鍜?G錛宩dk錛?.6錛夋祴璇?1612M錛?4涓烘搷浣滅郴緇熷鍐呭瓨鏃犻檺鍒躲傦級
2.緋葷粺鐨勫彲鐢ㄨ櫄鎷熷唴瀛橀檺鍒訛紱
3.緋葷粺鐨勫彲鐢ㄧ墿鐞嗗唴瀛橀檺鍒躲?br /> 鍫嗙殑澶у皬鍙互浣跨敤 java -Xmx***M version 鍛戒護(hù)鏉ユ祴璇曘傛敮鎸佺殑璇濅細(xì)鍑虹幇jdk鐨勭増鏈彿錛屼笉鏀寔浼?xì)鎶ラ敊銆?br /> -Xms -Xmx涓鑸厤緗垚涓鏍鋒瘮杈冨ソ姣斿set JAVA_OPTS= -Xms1024m -Xmx1024m
絎簩縐嶏細(xì)姘鎬箙淇濆瓨鍖哄煙婧㈠嚭
PermGen space鐨勫叏縐版槸Permanent Generation space,鏄寚鍐呭瓨鐨勬案涔呬繚瀛樺尯鍩熴傝繖涓閮ㄥ垎鐢ㄤ簬瀛樻斁Class鍜孧eta鐨勪俊鎭?Class鍦ㄨ Load鐨勬椂鍊欒鏀懼叆PermGen space鍖哄煙錛屽畠鍜屽拰瀛樻斁Instance鐨凥eap鍖哄煙涓嶅悓,GC(Garbage Collection)涓嶄細(xì)鍦ㄤ富紼嬪簭榪愯鏈熷PermGen space榪涜娓呯悊錛屾墍浠ュ鏋滀綘鐨凙PP浼?xì)LOAD寰堝CLASS鐨勮瘽,灝卞緢鍙兘鍑虹幇PermGen space閿欒銆傝繖縐嶉敊璇父瑙佸湪web鏈嶅姟鍣ㄥJSP榪涜pre compile鐨勬椂鍊欍備絾鐩墠鐨刪ibernate鍜宻pring欏圭洰涓篃寰堝鏄撳嚭鐜拌繖鏍風(fēng)殑闂銆?a >http://www.javaeye.com/topic/80620?page=1 鐨勫笘瀛愭湁璁ㄨ鐨勮繖涓棶棰樸傚彲鑳芥槸鐢變簬榪欎簺妗嗘灦浼?xì)鍔ㄦ乧lass錛岃屼笖jvm鐨刧c鏄笉浼?xì)娓呯悊PemGen space鐨勶紝瀵艱嚧鍐呭瓨婧㈠嚭銆?br /> 榪欎竴涓竴鑸槸鍔犲ぇ-XX:PermSize -XX:MaxPermSize 鏉ヨВ鍐抽棶棰樸?br /> -XX:PermSize 姘鎬箙淇濆瓨鍖哄煙鍒濆澶у皬
-XX:PermSize 姘鎬箙淇濆瓨鍖哄煙鍒濆鏈澶у?br /> 榪欎竴鑸粨鍚堢涓鏉′嬌鐢紝姣斿 set JAVA_OPTS= -Xms1024m -Xmx1024m -XX:PermSize=128M -XX:PermSize=256M
鏈変竴鐐歸渶瑕佹敞鎰忥細(xì)java -Xmx***M version 鍛戒護(hù)鏉ユ祴璇曠殑鏈澶у爢鍐呭瓨鏄?-Xmx涓?-XX:PermSize鐨?鍜? 姣斿緋葷粺鏀寔鏈澶х殑jvm鍫嗗ぇ灝忎簨1.5G錛岄偅 -Xmx1024m -XX:PermSize=768M 鏄棤娉曡繍琛岀殑銆?/p>
絎笁縐嶏細(xì)鏃犳硶鍒涘緩鏂扮殑綰跨▼銆?br /> 榪欑鐜拌薄姣旇緝?yōu)畱瑙佸Q屼篃姣旇緝濂囨紝涓昏鏄拰jvm涓庣郴緇熷唴瀛樼殑姣斾緥鏈夊叧銆?br /> 榪欑鎬簨鏄洜涓篔VM宸茬粡琚郴緇熷垎閰嶄簡澶ч噺鐨勫唴瀛?姣斿1.5G)錛屽茍涓斿畠鑷沖皯瑕佸崰鐢ㄥ彲鐢ㄥ唴瀛樼殑涓鍗娿傛湁浜哄彂鐜幫紝鍦ㄧ嚎紼嬩釜鏁板緢澶氱殑鎯呭喌涓嬶紝浣犲垎閰嶇粰JVM鐨勫唴瀛樿秺澶氾紝閭ｄ箞錛屼笂榪伴敊璇彂鐢熺殑鍙兘鎬у氨瓚婂ぇ銆?/p>
浜х敓榪欑鐜拌薄鐨勫師鍥犲涓嬶紙浠庤繖涓猙log涓簡瑙ｅ埌鍘熷洜錛歨ttp://hi.baidu.com/hexiong/blog/item/16dc9e518fb10c2542a75b3c.html錛夛細(xì)
姣忎竴涓?2浣嶇殑榪涚▼鏈澶氬彲浠ヤ嬌鐢?G鐨勫彲鐢ㄥ唴瀛橈紝鍥犱負(fù)鍙﹀2G琚搷浣滅郴緇熶繚鐣欍傝繖閲屽亣璁句嬌鐢?.5G緇橨VM錛岄偅涔堣繕浣欎笅500M鍙敤鍐呭瓨銆傝繖500M鍐?瀛樹腑鐨勪竴閮ㄥ垎蹇呴』鐢ㄤ簬緋葷粺dll鐨勫姞杞斤紝閭ｄ箞鐪熸鍓╀笅鐨勪篃璁稿彧鏈?00M錛岀幇鍦ㄥ叧閿殑鍦版柟鍑虹幇浜嗭細(xì)褰撲綘浣跨敤Java鍒涘緩涓涓嚎紼嬶紝鍦↗VM鐨勫唴瀛橀噷涔熶細(xì)鍒?寤轟竴涓猅hread瀵硅薄錛屼絾鏄悓鏃朵篃浼?xì)鍦ㄦ搷浣溇p葷粺閲屽垱寤轟竴涓湡姝ｇ殑鐗╃悊綰跨▼(鍙傝僇VM瑙勮寖)錛屾搷浣滅郴緇熶細(xì)鍦ㄤ綑涓嬬殑400鍏嗗唴瀛橀噷鍒涘緩榪欎釜鐗╃悊綰跨▼錛岃屼笉 鏄湪JVM鐨?500M鐨勫唴瀛樺爢閲屽垱寤恒傚湪jdk1.4閲屽ご錛岄粯璁ょ殑鏍堝ぇ灝忔槸256KB錛屼絾鏄湪jdk1.5閲屽ご錛岄粯璁ょ殑鏍堝ぇ灝忎負(fù)1M姣忕嚎紼嬶紝鍥犳錛屽湪浣?涓?00M鐨勫彲鐢ㄥ唴瀛橀噷杈規(guī)垜浠渶澶氫篃鍙兘鍒涘緩400涓彲鐢ㄧ嚎紼嬨?/p>
榪欐牱緇撹灝卞嚭鏉ヤ簡錛岃鎯沖垱寤烘洿澶氱殑綰跨▼錛屼綘蹇呴』鍑忓皯鍒嗛厤緇橨VM鐨勬渶澶у唴瀛樸傝繕鏈変竴縐嶅仛娉曟槸璁㎎VM瀹夸富鍦ㄤ綘鐨凧NI浠ｇ爜閲岃竟銆?/p>
緇欏嚭涓涓湁鍏寵兘澶熷垱寤虹嚎紼嬬殑鏈澶т釜鏁扮殑浼扮畻鍏紡錛?/p>
(MaxProcessMemory - JVMMemory - ReservedOsMemory) / (ThreadStackSize) = Number of threads
瀵逛簬jdk1.5鑰岃█錛屽亣璁炬搷浣滅郴緇熶繚鐣?20M鍐呭瓨錛?br /> 1.5GB JVM: (2GB-1.5Gb-120MB)/(1MB) = ~380 threads
1.0GB JVM: (2GB-1.0Gb-120MB)/(1MB) = ~880 threads
鍦?000/XP/2003鐨刡oot.ini閲屽ご鏈変竴涓惎鍔ㄩ夐」錛屽ソ鍍忔槸錛?span style="color: #339966;">/PAE /3G 錛屽彲浠ヨ鐢ㄦ埛榪涚▼鏈澶у唴瀛樻墿鍏呰嚦3G錛岃繖鏃舵搷浣滅郴緇熷彧鑳藉崰鐢ㄦ渶澶?G鐨勮櫄瀛樸傞偅鏍峰簲璇ュ彲浠ヨJVM鍒涘緩鏇村鐨勭嚎紼嬨?br /> 鍥犳榪欑鎯呭喌闇瑕佺粨鍚堟搷浣滅郴緇熻繘琛岀浉鍏寵皟鏁淬?/p>
鍥犳錛氭垜浠渶瑕佺粨鍚堜笉鍚屾儏鍐靛tomcat鍐呭瓨鍒嗛厤榪涜涓嶅悓鐨勮瘖鏂墠鑳戒粠鏍規(guī)湰涓婅В鍐抽棶棰樸?/p>
鍙傝冭祫鏂欙紙浠庤繖浜涜祫鏂欎腑鍙楃泭鑹錛夛細(xì)
http://www.javaeye.com/topic/80620?page=1
http://ggmm.blog.sohu.com/117545379.html
http://hi.baidu.com/hexiong/blog/item/16dc9e518fb10c2542a75b3c.html
http://www.wujianrong.com/archives/2006/12/javalangoutofmemoryerror_permg.html
from:http://www.tkk7.com/george/archive/2009/08/18/291579.html
]]>
]]>