There parameters need to be obained: no. of physical CPU; no. of cores on each CPU; no. of all threads. In my case, the CPU name: Intel(R) Xeon(R) CPU E5-2630 v4 @ 2.20GHz (1) Check the number of physical CPU # cat /proc/cpuinfo | grep "physical id&q…

1.今天在scott用户下执行语句跟踪时报了如下错误: SCOTT@ORA11GR2>set autotrace on SP2: Cannot find the Session Identifier. Check PLUSTRACE role is enabled SP2: Error enabling STATISTICS report 2.通过上述问题分析,是由于scott用户没有PLUSTRACE角色,执行PLUSTRACE角色: /db_1/sqlplus/admin/ [oracle@…

SQL> set autotrace Usage: SET AUTOT[RACE] {OFF | ON | TRACE[ONLY]} [EXP[LAIN]] [STAT[ISTICS]] SQL> set autotrace on SP2: Cannot find the Session Identifier. Check PLUSTRACE role is enabled SP2: Error enabling STATISTICS report SQL> conn /as sysdb…

SP2-0618: Cannot find the Session Identifier. Check PLUSTRACE role is enabled 今天是2013-09-17,在今天学习sql执行计划的是发现如下问题: 问题描述: 在rhys用户下开启sql语句计划报如下错误: SQL> set autotrace on SP2-0618: Cannot find the Session Identifier. Check PLUSTRACE role is enabled SP2-06…

执行set autotrace traceonly的时候,报错 SQL> set autotrace traceonly SP2-0618: Cannot find the Session Identifier.  Check PLUSTRACE role is enabled SP2-0611: Error enabling STATISTICS report 切换到sysdba下,授予权限 SQL> conn / as sysdba Connected. SQL> grant plu…

一.查看Linux内核版本命令(两种方法): 1.cat /proc/version [root@localhost ~]# cat /proc/version Linux version 2.6.18-194.8.1.el5.centos.plus (mockbuild@builder17.centos.org) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-48)) #1 SMP Wed Jul 7 11:50:45 EDT 2010 2.uname…

建议安装chkrootkit.rkhunter.Lynis.ISPProtect这类安全工具,定期做扫描…

In present (post production) IT infrastructure many different workstations, servers etc. have to be maintained on a daily basis. When running on *nix operating systems, the main tool to log into and execute arbitrary code on a remote machine is SSH .…

http://www.richweb.com/cpu_info A hyperthreaded processor has the same number of function units as an older, non-hyperthreaded processor. It just has two execution contexts, so it can maybe achieve better function unit utilization by letting more tha…

http://flycars001.iteye.com/blog/1949085 YUM到底是啥东东? YUM(Yellowdog Updater Modified)是一款开源命令行及图形化软件包管理工具,面向基于RPM(红帽软件包管理器)的Linux系统. 它让广大用户和系统管理员可以在系统上轻松地安装.更新.移除或搜索软件包.它由Seth Vidal开发和发布,采用了GPL(通用公共许可证),是一款开源工具.这意味着,谁都可以下载和访问代码,以修复软件错误,开发定制的软件包.YUM 通过解决…