安装完ORACEL 10g数据库后,启动数据库时遇到ORA-01102: cannot mount database in EXCLUSIVE mode [oracle@DB-Server ~]$ sqlplus / as sysdba   SQL*Plus: Release 10.2.0.1.0 - Production on Thu Apr 10 13:53:08 2014   Copyright (c) 1982, 2005, Oracle. All rights reserved.  …

一.Exclusive Gateway Exclusive Gateway(也称为XOR网关或更多技术基于数据的排他网关)经常用做决定流程的流转方向.当流程到达该网关的时候,所有的流出序列流到按照已定义好的顺序依次执行.当序列流条件的求值结果为true(或没有条件集的时候,在概念上有定义一个“true”定义序列流),就会选择该序列继续的处理.Exclusive Gateway的图标就是菱形里面有一个X符合,如下所示: XML的代码为: <exclusiveGateway id="exclu…

http://hi.baidu.com/kaisep/item/0e4bf6ee5da001d1ea34c986 源地址 启动weblogic的错误:Could not obtain an exclusive lock to the embedded LDAP data files directory 启动weblogic时报以下错误:<2004-12-22 上午05时25分29秒 CST> <Critical> <WebLogicServer> <BEA-000…

错误信息: [PCSF_10007]Cannot connect to repository [Rs_RotKang] because [REP_51821]Repository Service is currently serving an administrator running on machine in exclusive mode.no other logins are allowed to repository [Rs_RotKang]. failed to connect to…

异或,英文为exclusive OR,或缩写成xor 异或(xor)是一个数学运算符.它应用于逻辑运算.异或的数学符号为“⊕”,计算机符号为“xor”.其运算法则为: a⊕b = (¬a ∧ b) ∨ (a ∧¬b) 如果a.b两个值不相同,则异或结果为1.如果a.b两个值相同,异或结果为0. 异或也叫半加运算,其运算法则相当于不带进位的二进制加法:二进制下用1表示真,0表示假,则异或的运算法则为:0⊕0=0,1⊕0=1,0⊕1=1,1⊕1=0(同为0,异为1),这些法则与加法是相同的,只是不带…

Exclusive or 题目链接: http://acm.hust.edu.cn/vjudge/contest/121336#problem/J Description Given n, find the value of Note: ♁ denotes bitwise exclusive-or. Input The input consists of several tests. For each tests: A single integer n (2≤n<10^500). Output…

12232 - Exclusive-OR 题目大意是可以设定一个点Xp=v,或者Xp^Xq=v,然后查询Xa^Xb^Xc...等于多少. 由于异或操作跟判连通性很类似,这里可以使用并查集来解决,对于Xp^Xq=v先判断Xp和Xq是否来自一颗树,若是来自一个棵树,则判相容性,否则连接这两棵树,而Xp=v是用来lock一棵树的,当一棵树未被lock时,这颗树中的所有值都不确定,当lock之后,就可以确定这颗树的所有值了.而最后求Xa^Xb^Xc...时,先按树进行分类,对于lock的树的X直接求解,…

If one session has a shared or exclusive lock on record R in an index, another session cannot insert a new index record in the gap immediately before R in the index order. 如果一个session 有一个共享或者排它锁在记录R上,另外的session 不能插入新的index record 在before R这个区间 Sessio…

14.5 InnoDB Locking and Transaction Model InnoDB 锁和事务模型 14.5.1 InnoDB Locking 14.5.2 InnoDB Transaction Model 14.5.3 Locks Set by Different SQL Statements in InnoDB 14.5.4 Phantom Rows 14.5.5 Deadlocks in InnoDB 实现一个大规模的,繁忙的,或者可扩展的数据库应用,从不同数据库系统的大量代码…

还原Oracle数据库时出现ORA-19870和ORA-19573错误,如: RMAN> restore database; Starting restore at 11-DEC-12 using channel ORA_DISK_1 channel ORA_DISK_1: starting datafile backupset restore channel ORA_DISK_1: specifying datafile(s) to restore from backup set restor…

UVA 12232 - Exclusive-OR 题目链接 题意:有n个数字.一開始值都不知道,每次给定一个操作,I a v表示确认a值为v,I a b v,表示确认a^b = v,Q k a1 a2 a3 ... ak.表示推断这些数字的异或值是否能确定.能确定就输出值,假设有矛盾就停止 思路:带权并查集,权表示和父结点的异或值,那么多数推断的时候,仅仅要全部数字和他的父结点的异或值的异或值.假设父结点的个数是偶数个.那么依据异或的性质能抵消掉,是能够判定的.假设不为偶数,就是不能判定. 注意…

Exclusive or Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 327    Accepted Submission(s): 137 Problem Description Given n, find the value of  Note: ⊕ denotes bitwise exclusive-or.   Input T…

Given the running logs of n functions that are executed in a nonpreemptive single threaded CPU, find the exclusive time of these functions. Each function has a unique id, start from 0 to n-1. A function may be called recursively or by another functio…

[20190418]exclusive latch spin count.txt--//昨天测试"process allocation" latch,主要这个latch与其它拴锁spin方式有点不同,但是缺省都是spin 20000.如何验证一直是困扰我的问题.--//而且现在的模式是spin 一定数量后,调用semop睡眠,等待唤醒.在这步消耗cpu资源很少.而不是像以前反复spin,指数回退.--//链接:http://andreynikolaev.wordpress.com/20…

[20190416]exclusive latch测试脚本.txt --//昨天做了shared latch的测试脚本,今天完善exclusive latch测试脚本,上个星期的测试我是手工执行的.--//今天写一个脚本验证看看.相关链接:http://blog.itpub.net/267265/viewspace-2641414/ => [20190415]关于shared latch(共享栓锁).txthttp://blog.itpub.net/267265/viewspace-264149…

Given the running logs of n functions that are executed in a nonpreemptive single threaded CPU, find the exclusive time of these functions. Each function has a unique id, start from 0 to n-1. A function may be called recursively or by another functio…

[20190416]11g下那些latch是Exclusive的.txt --//昨天测试了11g下那些latch是共享的,链接:--//是否反过来剩下的都是Exclusive的.继续测试: 1.环境:SYS@book> @ ver1PORT_STRING                    VERSION        BANNER------------------------------ -------------- -----------------------------------…

由于曝出漏洞(CVE-2017-3248)需要将weblogic补丁更新至B25A,但是出现报错.如下: Conflict(s) detected - resolve conflict condition and execute patch installation again Conflict condition details follow: Patch B25A is mutually exclusive and cannot coexist with patch(es): UIAL 看意…

今天启动数据库时报错了! SQL> startup mount ORACLE instance started. Total System Global Area  608174080 bytes Fixed Size                 1220844 bytes Variable Size            176164628 bytes Database Buffers      427819008 bytes Redo Buffers             296960…

什么是MECE分析法? MECE,是Mutually Exclusive Collectively Exhaustive,中文意思是“相互独立,完全穷尽”. 也就是对于一个重大的议题,能够做到不重叠.不遗漏的分类,而且能够藉此有效把握问题的核心,并解决问题的方法. 它是麦肯锡的第一个女咨询顾问巴巴拉·明托(Barbara Minto)在金字塔原理(The Minto Pyramid Principle)中提出的一个很重要的原则. 所谓的不遗漏.不重叠指在将某个整体(不论是客观存在的还是概念性的整…

指令LDREX,STREX是在armv6中新加的指令,配合AMBA3--AXI中的lock[1:0]信号. 在Atomic Access一节中是这么规定的:ARLOCK[1:0]/AWLOCK[1:0]信号为2'b00-------Normal access ARLOCK[1:0]/AWLOCK[1:0]信号为2'b01-------Exclusive access ARLOCK[1:0]/AWLOCK[1:0]信号为2'b10-------Locked access exclusive的操作相…

早上一运维同事说,一个报盘程序启动的时候报了"ESOURCE_LOCKED - cannot obtain exclusive access to locked queue '2484_0_00163'",因为之前一直不管报盘的事情,后面仔细看了下,这个错误应该不是开发自己加上的,搜了下,是两个不同的运维同事登录,各自启动了一个程序所致,后面启动的那个就报这个错误,原因可见http://www.cnblogs.com/rader/archive/2012/06/28/2567779.h…

Given the running logs of n functions that are executed in a nonpreemptive single threaded CPU, find the exclusive time of these functions. Each function has a unique id, start from 0 to n-1. A function may be called recursively or by another functio…

［抄题］: Given the running logs of n functions that are executed in a nonpreemptive single threaded CPU, find the exclusive time of these functions. Each function has a unique id, start from 0 to n-1. A function may be called recursively or by another f…

636. Exclusive Time of Functions 1.Problem Given the running logs of n functions that are executed in a nonpreemptive single threaded CPU, find the exclusive time of these functions. Each function has a unique id, start from 0 to n-1. A function may…

ORA-01102: cannot mount database in EXCLUSIVE mode 今天在fedora上安装完10g后,测试数据库是否安装成功.STARTUP数据库时,发生如下错误:     SQL> conn /as sysdba Connected to an idle instance. SQL> startup ORACLE instance started. Total System Global Area  591396864 bytes Fixed Size  …

A data processing system is provided with multiple processors that share a main memory. Semaphore values associated with data elements within the memory system, including the main memory, are used to establish exclusive access permissions to those da…

启动 Oracle  11g RAC数据库时出现以下错误.只能启动其中一个节点(rac01),另一个节点启动不了(rac02).可能是以前修改cluster_database这个参数引起的.在Oracle RAC架构这个参数必须设置为TRUE. 执行startup时候,错误信息: ORA-01102: cannot mount database in EXCLUSIVE mode 解决方法: rac01节点: SQL> show parameter cluster_database; NAME …

Exclusive Access 2 Description 给出 N 个点M 条边的无向图,定向得到有向无环图,使得最长路最短. N ≤ 15, M ≤ 100 Input Format 第一行一个数M (1≤M≤100). 接下来M行,每行两个大写字母(L 到 Z),最多出线15个不同的大写字母.每行的两个大写字母不会相同. Output Format 第一行输出最长路最短的数值-1. Sample Input 3 P Q Q R R P Sample Output 1 解析 二分答案?想多…

InvalidOperationException: Operations that change non-concurrent collections must have exclusive access. A concurrent update was performed on this collection and corrupted its state. The collection's state is no longer correct. 异常代码如下: if (!keyValueF…