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皇冠国际一时间人声鼎沸

2016-03-10 来源: 作者:陈延鹏 责任编辑:田艳敏

摘 要:皇冠国际一时间人声鼎沸 y7ic82

 皇冠国际一时间人声鼎沸

转自:http://blog.csdn.net/poechant/article/details/7216534 本人做了点小修改 假定第一个神经元对应的权重和偏移量分别为W0和b0,那皇冠国际一时间人声鼎沸 就能算得,在第一行皇冠国际一时间人声鼎沸 窗口停留的4个位置,得到的结果值分别为:V[0,0,0] = np.sum(X[:5,:5,:] * W0) + b0V[1,0,0] = np.sum(X[2:7,:5,:] * W0) + b0V[2,0,0] = np.sum(X[4:9,:5,:] * W0) + b0V[3,0,0] = np.sum(X[6:11,:5,:] * W0) + b0注意上述计算过程中,*运算符是对两个向量进行点乘的,因此W0应该维度为(5,5,4),同样你可以计算其他位置的计算输出值:V[0,0,1] = np.sum(X[:5,:5,:] * W1) + b1V[1,0,1] = np.sum(X[2:7,:5,:] * W1) + b1V[2,0,1] = np.sum(X[4:9,:5,:] * W1) + b1V[3,0,1] = np.sum(X[6:11,:5,:] * W1) + b1…每一个神经元对应皇冠国际一时间人声鼎沸 同的一组W和b,在每个皇冠国际一时间人声鼎沸 窗口停留的位置,得到一个输出值 皇冠后备而在他的声音落下

Filter被用于在Servlet/JSP等资源处理HTTP请求之前,对请求进行拦截处理,下图是Filter拦截HTTP请求的过程:Filter在Servlet/JSP之前对HTTP请求进行拦截,可以同时存在多个Filter组成Filter链(Chain),在任意Filter中可以决定继续执行Filter链中的下一个Filter,还是把response直接返回到浏览器

花钱为主:都说了是投资,能花了就别留着 皇冠网新3所以延长三年

失败的逻辑类似,皇冠国际一时间人声鼎沸 贴代码了 皇冠网开户尤其这位膝下的独子

皇冠国际一时间人声鼎沸

皇冠国际一时间人声鼎沸 网站为了精准的刻画用户,标签的种类和数量自然也皇冠国际一时间人声鼎沸 会少

关于命令行的获取, linux 使用 read /proc/pid/cmdline , Windows 中有两种,一个是 MSVC 使用 COM WMI 类 Win32_Process 获得 cmdline, 另一种 Mingw 使用 ZwQueryInformationProcess 读取 特定进程 PEB ,得到 cmdline ,这个有个限制,目标进程和自身的架构得一致,也就是 32位智能读取 32位,64位智能读取 64位 皇冠开户网不在出价了

如果父进程有大量写操作,并且皇冠国际一时间人声鼎沸 具有locality,会有大量的页被写,并需要拷贝

一般来说,会像`int r = add(1, 1)`这样来使用它 足球皇冠网“三..三十万

1结合Mycat日志,分析select * from travelrecord order by id limit100000,100 的执行过程,解释下当limit M,N中的M非常大的情况下,为什么查询结果会变慢很多 1.1mycat控制命令台显示,explain出来走了所有的节点 mysql>explain select * from travelrecord order by id limit 100000,100 ; +-----------+--------------------------------------------------------+ |DATA_NODE | SQL| +-----------+--------------------------------------------------------+ |dn1 | SELECT * FROM travelrecordORDER BY id LIMIT 0, 100100 | |dn2 | SELECT * FROM travelrecordORDER BY id LIMIT 0, 100100 | |dn3 | SELECT * FROM travelrecordORDER BY id LIMIT 0, 100100 | +-----------+--------------------------------------------------------+ 3rows in set (0.01 sec) mysql> 看后台mycat.log日志: 02/1417:52:30.103 DEBUG [$_NIOREACTOR-0-RW](ServerQueryHandler.java:56) -ServerConnection [id=3, schema=TESTDB,host=127.0.0.1, user=test,txIsolation=3, autocommit=true, schema=TESTDB]explainselect * from travelrecord order by id limit 1000000,100 02/1417:52:30.103 DEBUG [$_NIOREACTOR-0-RW](EnchachePool.java:76) -SQLRouteCachemiss cache ,key:TESTDB select * from travelrecord order by id limit1000000,100 02/1417:52:30.105 DEBUG [$_NIOREACTOR-0-RW] (EnchachePool.java:59)-SQLRouteCache add cache ,key:TESTDB select * from travelrecord order by idlimit 1000000,100 value:select * from travelrecord order by id limit1000000,100, route={ 1 -> dn1{SELECT * FROMtravelrecord ORDERBY id LIMIT0, 1000100} 2 -> dn2{SELECT * FROMtravelrecord ORDERBY id LIMIT0, 1000100} 3 -> dn3{SELECT * FROMtravelrecord ORDERBY id LIMIT0, 1000100} } 02/1417:52:33.880 DEBUG [$_NIOREACTOR-0-RW](ServerQueryHandler.java:56) -ServerConnection [id=3, schema=TESTDB,host=127.0.0.1, user=test,txIsolation=3, autocommit=true, schema=TESTDB]select* from travelrecord order by id limit 1000000,100 02/1417:52:33.881 DEBUG [$_NIOREACTOR-0-RW](EnchachePool.java:76) -SQLRouteCachemiss cache ,key:TESTDBselect * from travelrecord order by id limit1000000,100 02/1417:52:33.882 DEBUG [$_NIOREACTOR-0-RW](EnchachePool.java:59) -SQLRouteCache add cache ,key:TESTDBselect * fromtravelrecord order by id limit 1000000,100 value:select * from travelrecordorder by id limit 1000000,100, route={ 1 -> dn1{SELECT * FROMtravelrecord ORDERBY id LIMIT0, 1000100} 2 -> dn2{SELECT * FROMtravelrecord ORDERBY id LIMIT0, 1000100} 3 -> dn3{SELECT * FROMtravelrecord ORDERBY id LIMIT0, 1000100} } 02/1417:52:33.882 DEBUG [$_NIOREACTOR-0-RW](NonBlockingSession.java:113) -ServerConnection [id=3, schema=TESTDB,host=127.0.0.1, user=test,txIsolation=3, autocommit=true, schema=TESTDB]select* from travelrecord order by id limit 1000000,100, route={ 1 -> dn1{SELECT * FROMtravelrecord ORDERBY id 02/1417:52:33.882 DEBUG [$_NIOREACTOR-0-RW](NonBlockingSession.java:113) -ServerConnection [id=3, schema=TESTDB,host=127.0.0.1, user=test,txIsolation=3, autocommit=true, schema=TESTDB]select* from travelrecord order by id limit 1000000,100, route={ 1 -> dn1{SELECT * FROMtravelrecord ORDERBY id LIMIT0, 1000100} 2 -> dn2{SELECT * FROMtravelrecord ORDERBY id LIMIT0, 1000100} 3 -> dn3{SELECT * FROMtravelrecord ORDERBY id LIMIT0, 1000100} }rrs 02/1417:52:33.882 DEBUG [$_NIOREACTOR-0-RW](MultiNodeQueryHandler.java:82) -execute mutinode query select * from travelrecordorder by id limit 1000000,100 02/1417:52:33.882 DEBUG [$_NIOREACTOR-0-RW](MultiNodeQueryHandler.java:97) -has data merge logic 02/1417:52:33.882 DEBUG [$_NIOREACTOR-0-RW](PhysicalDBPool.java:452) -select read source hostM1 for dataHost:wgq_idc_mon_1_12 02/1417:52:33.883 DEBUG [$_NIOREACTOR-0-RW](PhysicalDBPool.java:452) -select read source hostM1 fordataHost:wgq_idc_mon_1_12 02/1417:52:33.883 DEBUG [$_NIOREACTOR-0-RW](PhysicalDBPool.java:452) -select read source hostM1 for dataHost:wgq_idc_mon_1_12 02/1417:52:33.883 DEBUG [$_NIOREACTOR-3-RW](MultiNodeQueryHandler.java:171) -received ok response ,executeResponse:falsefrom MySQLConnection [id=19, lastTime=1455443553868, user=root, schema=db1, oldshema=db1, borrowed=true, fromSlaveDB=false, threadId=220, charset=latin1,txIsolation=3, autocommit=true, attachment=dn1{SELECT * FROMtravelrecord ORDERBY id LIMIT0, 1000100},respHandler=org.opencloudb.mysql.nio.handler.MultiNodeQueryHandler@f35a686,host=110.254.11.111, port=3317, statusSync=org.opencloudb.mysql.nio.MySQLConnection$StatusSync@b47af37,writeQueue=0, modifiedSQLExecuted=false] 02/1417:52:33.884 DEBUG [$_NIOREACTOR-1-RW](MultiNodeQueryHandler.java:241) -on row end reseponse MySQLConnection [id=25,lastTime=1455443553868, user=root, schema=db3, old shema=db3, borrowed=true,fromSlaveDB=false, threadId=227, charset=latin1, txIsolation=3,autocommit=true, attachment=dn3{SELECT * FROMtravelrecord 02/1417:52:33.883 DEBUG [$_NIOREACTOR-3-RW](MultiNodeQueryHandler.java:171) -received ok response ,executeResponse:falsefrom MySQLConnection [id=19, lastTime=1455443553868, user=root, schema=db1, oldshema=db1, borrowed=true, fromSlaveDB=false, threadId=220, charset=latin1,txIsolation=3, autocommit=true, attachment=dn1{SELECT * FROMtravelrecord ORDERBY id LIMIT0, 1000100},respHandler=org.opencloudb.mysql.nio.handler.MultiNodeQueryHandler@f35a686,host=110.254.11.111, port=3317,statusSync=org.opencloudb.mysql.nio.MySQLConnection$StatusSync@b47af37,writeQueue=0, modifiedSQLExecuted=false] 02/1417:52:33.884 DEBUG [$_NIOREACTOR-1-RW](MultiNodeQueryHandler.java:241) -on row end reseponse MySQLConnection [id=25,lastTime=1455443553868, user=root, schema=db3, old shema=db3, borrowed=true,fromSlaveDB=false, threadId=227, charset=latin1, txIsolation=3,autocommit=true, attachment=dn3{SELECT * FROMtravelrecord ORDERBY id LIMIT0, 1000100},respHandler=org.opencloudb.mysql.nio.handler.MultiNodeQueryHandler@f35a686,host=110.254.11.111, port=3317, statusSync=null, writeQueue=0,modifiedSQLExecuted=false] 02/1417:52:33.884 DEBUG [$_NIOREACTOR-3-RW](DataMergeService.java:94) -field metadata inf:[ID=ColMeta [colIndex=0,colType=8], DAYS=ColMeta [colIndex=4, colType=3], TRAVELDATE=ColMeta[colIndex=2, colType=10], USER_ID=ColMeta [colIndex=1, colType=253],FEE=ColMeta [colIndex=3, colType=246]] 02/1417:52:33.884 DEBUG [$_NIOREACTOR-1-RW](NonBlockingSession.java:229) -release connection MySQLConnection [id=25,lastTime=1455443553868, user=root, schema=db3, old shema=db3, borrowed=true,fromSlaveDB=false, threadId=227, charset=latin1, txIsolation=3,autocommit=true, attachment=dn3{SELECT * FROMtravelrecord ORDERBY id LIMIT0, 1000100},respHandler=org.opencloudb.mysql.nio.handler.MultiNodeQueryHandler@f35a686,host=110.254.11.111, port=3317, statusSync=null, writeQueue=0,modifiedSQLExecuted=false] 02/1417:52:33.885 DEBUG [$_NIOREACTOR-1-RW](PhysicalDatasource.java:403) -release channel MySQLConnection [id=25,lastTime=1455443553868, user=root, schema=db3, old shema=db3, borrowed=true,fromSlaveDB=false, threadId=227, charset=latin1, txIsolation=3,autocommit=true, attachment=null, respHandler=null, host=110.254.11.111,port=3317, statusSync=null, writeQueue=0, modifiedSQLExecuted=false] 02/1417:52:33.886 DEBUG [$_NIOREACTOR-3-RW](NonBlockingSession.java:229) -release connection MySQLConnection [id=19,lastTime=1455443553868, user=root, schema=db1, old shema=db1, borrowed=true,fromSlaveDB=false, threadId=220, charset=latin1, txIsolation=3,autocommit=true, attachment=dn1{SELECT * FROMtravelrecord ORDERBY id LIMIT0, 1000100}, respHandler=org.opencloudb.mysql.nio.handler.MultiNodeQueryHandler@f35a686,host=110.254.11.111, port=3317,statusSync=org.opencloudb.mysql.nio.MySQLConnection$StatusSync@b47af37,writeQueue=0, modifiedSQLExecuted=false] 02/1417:52:33.886 DEBUG [$_NIOREACTOR-3-RW](PhysicalDatasource.java:403) -release channel MySQLConnection [id=19,lastTime=1455443553868, user=root, schema=db1, old shema=db1, borrowed=true,fromSlaveDB=false, threadId=220, charset=latin1, txIsolation=3,autocommit=true, attachment=null, respHandler=null, host=110.254.11.111, port=3317,statusSync=null, writeQueue=0, modifiedSQLExecuted=false] 02/1417:52:33.886 DEBUG [$_NIOREACTOR-3-RW](MultiNodeQueryHandler.java:241) -on row end reseponse MySQLConnection [id=42,lastTime=1455443553868, user=root, schema=db2, old shema=db2, borrowed=true,fromSlaveDB=false, threadId=234, charset=latin1, txIsolation=3,autocommit=true, attachment=dn2{SELECT * FROMtravelrecord ORDERBY id LIMIT0, 1000100},respHandler=org.opencloudb.mysql.nio.handler.MultiNodeQueryHandler@f35a686,host=110.254.11.111, port=3317, statusSync=null, writeQueue=0,modifiedSQLExecuted=false] 02/1417:52:33.886 DEBUG [$_NIOREACTOR-3-RW](NonBlockingSession.java:229) -release connection MySQLConnection [id=42,lastTime=1455443553868, user=root, schema=db2, old shema=db2, borrowed=true,fromSlaveDB=false, threadId=234, charset=latin1, txIsolation=3,autocommit=true, attachment=dn2{SELECT * FROMtravelrecord ORDERBY id LIMIT0, 1000100},respHandler=org.opencloudb.mysql.nio.handler.MultiNodeQueryHandler@f35a686, host=110.254.11.111,port=3317, statusSync=null, writeQueue=0, modifiedSQLExecuted=false] 02/1417:52:33.886 DEBUG [$_NIOREACTOR-3-RW](PhysicalDatasource.java:403) -release channel MySQLConnection [id=42,lastTime=1455443553868, user=root, schema=db2, old shema=db2, borrowed=true,fromSlaveDB=false, threadId=234, charset=latin1, txIsolation=3,autocommit=true, attachment=null, respHandler=null, host=110.254.11.111,port=3317, statusSync=null, writeQueue=0, modifiedSQLExecuted=false] 02/1417:52:33.887 DEBUG [BusinessExecutor5](DataMergeService.java:296) -prepare mpp merge result for select * fromtravelrecord order by id limit 1000000,100 02/1417:52:33.887 DEBUG [BusinessExecutor5](MultiNodeQueryHandler.java:324) -last packet id:8 路由里面是先查limit 0,1000000条,然后再查出limit 0,1000100条记录,在这个基础上查出100条(prepare mpp mergeresult for select * from travelrecord order by id limit 1000000,100),所以如果这个M=1000000越来越大,一次性拉的皇冠国际一时间人声鼎沸 就越大,这样就越来越慢了,那么需要查询的皇冠国际一时间人声鼎沸 就比较多2结合Mycat日志,分析跨分片事务的执行过程,以一个正常的跨分片SQL的事务过程,以及,一个错误SQL为例(比如某个分片上主键冲突或其他SQL错误,导致无法执行成功)分别加, 以说明2.1 正常的跨分片事务分析 执行情况: mysql>set autocommit=0 mysql>update order040302 set SN=concat(SN,'-mycat'); QueryOK, 2 rows affected (0.01 sec) Rowsmatched: 1 Changed: 1 Warnings: 0 mysql>commit; mycat.log日志显示: 02/1800:01:24.351 DEBUG [$_NIOREACTOR-1-RW](ServerQueryHandler.java:56) -ServerConnection [id=4, schema=TESTDB,host=127.0.0.1, user=test,txIsolation=3, autocommit=true, schema=TESTDB]updateorder040302 set SN=concat(SN,'-mycat') 02/1800:01:24.356 DEBUG [$_NIOREACTOR-1-RW](NonBlockingSession.java:113) -ServerConnection [id=4, schema=TESTDB,host=127.0.0.1, user=test,txIsolation=3, autocommit=true, schema=TESTDB]updateorder040302 set SN=concat(SN,'-mycat'), route={ 1 -> dn21{update order040302 setSN=concat(SN,'-mycat')} 2 -> dn22{update order040302 setSN=concat(SN,'-mycat')} }rrs 02/1800:01:24.356 DEBUG [$_NIOREACTOR-1-RW](MultiNodeQueryHandler.java:82) -execute mutinode query update order040302 setSN=concat(SN,'-mycat') 02/1800:01:24.357 DEBUG [$_NIOREACTOR-3-RW](MultiNodeQueryHandler.java:171) -received ok response ,executeResponse:falsefrom MySQLConnection [id=7, lastTime=1455724884356, user=root, schema=db3, oldshema=db3, borrowed=true, fromSlaveDB=false, threadId=218, charset=latin1,txIsolation=3, autocommit=true, attachment=dn21{update order040302 setSN=concat(SN,'-mycat')},respHandler=org.opencloudb.mysql.nio.handler.MultiNodeQueryHandler@23eca0d1,host=110.254.11.111, port=3317, statusSync=org.opencloudb.mysql.nio.MySQLConnection$StatusSync@71a27302,writeQueue=0, modifiedSQLExecuted=true] 02/1800:01:24.358 DEBUG [$_NIOREACTOR-2-RW](MultiNodeQueryHandler.java:171) -received ok response ,executeResponse:truefrom MySQLConnection [id=30, lastTime=1455724884356, user=root, schema=db3, oldshema=db3, borrowed=true, fromSlaveDB=false, threadId=200, charset=latin1,txIsolation=3, autocommit=true, attachment=dn22{update order040302 setSN=concat(SN,'-mycat')},respHandler=org.opencloudb.mysql.nio.handler.MultiNodeQueryHandler@23eca0d1,host=110.254.11.111, port=3327, statusSync=null, writeQueue=0,modifiedSQLExecuted=true] 02/1800:01:24.359 DEBUG [$_NIOREACTOR-2-RW](NonBlockingSession.java:229) -release connection MySQLConnection [id=30,lastTime=1455724884356, user=root, schema=db3, old shema=db3, borrowed=true,fromSlaveDB=false, threadId=200, charset=latin1, txIsolation=3,autocommit=true, attachment=dn22{update order040302 setSN=concat(SN,'-mycat')},respHandler=org.opencloudb.mysql.nio.handler.MultiNodeQueryHandler@23eca0d1,host=110.254.11.111, port=3327, statusSync=null, writeQueue=0,modifiedSQLExecuted=true] 02/1800:01:24.359 DEBUG [$_NIOREACTOR-3-RW](MultiNodeQueryHandler.java:171) -received ok response ,executeResponse:truefrom MySQLConnection [id=7, lastTime=1455724884356, user=root, schema=db3, oldshema=db3, borrowed=true, fromSlaveDB=false, threadId=218, charset=latin1,txIsolation=3, autocommit=true, attachment=dn21{update order040302 setSN=concat(SN,'-mycat')}, respHandler=org.opencloudb.mysql.nio.handler.MultiNodeQueryHandler@23eca0d1,host=110.254.11.111, port=3317, statusSync=null, writeQueue=0,modifiedSQLExecuted=true] 02/1800:01:24.359 DEBUG [$_NIOREACTOR-3-RW](NonBlockingSession.java:229) -release connection MySQLConnection [id=7,lastTime=1455724884356, user=root, schema=db3, old shema=db3, borrowed=true,fromSlaveDB=false, threadId=218, charset=latin1, txIsolation=3,autocommit=true, attachment=dn21{update order040302 setSN=concat(SN,'-mycat')}, respHandler=org.opencloudb.mysql.nio.handler.MultiNodeQueryHandler@23eca0d1,host=110.254.11.111, port=3317, statusSync=null, writeQueue=0,modifiedSQLExecuted=true] 02/1800:01:24.359 DEBUG [$_NIOREACTOR-3-RW](PhysicalDatasource.java:403) -release channel MySQLConnection [id=7,lastTime=1455724884356, user=root, schema=db3, old shema=db3, borrowed=true,fromSlaveDB=false, threadId=218, charset=latin1, txIsolation=3,autocommit=true, attachment=null, respHandler=null, host=110.254.11.111,port=3317, statusSync=null, writeQueue=0, modifiedSQLExecuted=false] 分析结果:update语句是修改所有的节点上的皇冠国际一时间人声鼎沸 ,02/18 00:01:24.356处NonBlockingSession启动了分布式事务,下面就分别在02/18 00:01:24.359有2处 NonBlockingSession.java:229在dn21、dn22上面执行了2遍,大家看到在2个节点dn21和dn22都执行完毕后,才有(PhysicalDatasource.java:403)-release channel MySQLConnection开始关闭释放连接,也就是说等所有节点都执行完毕后才结束整个事务

p>转自:http://blog.csdn.net/poechant/article/details/7216534 本人做了点小修改 近期的三层学习,为七层机房的重构打下了基础,而七层的架构,则是现在要学习的,七层机房的重构,又复习了之前学习的文档,UML图,学习就是这样一个层层递进而又皇冠国际一时间人声鼎沸 断反复的过程,这半年,收获满满,这半年,可以给老师一个交代,给父母一个交代,更是给皇冠国际一时间人声鼎沸 一个交代 全讯皇冠网场面无比的火热

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原标题:皇冠国际一时间人声鼎沸
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值班主任:田艳敏
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