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Configuration process of maximum performance mode of physical volume uard Master Database Host edbjr2p1 Slave Database Host edbjr2p2 1. Create a master database [Root @ edbjr2p1 ~] # Xhost + Access control disabled, clients can connect from any host

You can view the current configuration through dba_hist_wr_control. The current awr is a data snapshot every hour, and the retention time is 7 days. SYS @ PENGSQLgt; select * You can view the current configuration through dba_hist_wr_control. The

Use Innobackupex for database backup to report the following error:Innobackupex--compress--parallel=4--user=root--password=yoon/export/backup/xtrabackup_56 version 2.1.9 for MySQL server 5.6.17 Linux (x86_64) (revision id:744)Xtrabackup:uses

Looking at the last domain name, it happens to be in the pendingdelete state, that is, the domain name is not in use, but has not been released yet-it is estimated that this domain name is quite popular and may be stolen once it is found, so I want

Solution to the Problem of RMAN-05021 in slave uard Environment As an important component of the Oracle HA function, the Dataguard environment has many application scenarios and success stories in the field of practice. Like any technology, some

Centos7 modify ssh port! The default ssh port is 22, which is always scanned for logon! To change the default port to 2218: Modify the ssh configuration file/etc/ssh/sshd_config, remove the comment before Port 22, and change 22 to 2218 [root@niche ~]

Redis is one of the most popular NoSQL databases today, and it is a key-value storage system. Similar to memcached, but largely compensates for the lack of memcached, which supports storing more value types, including string, list, set, Zset, and

Reprinted from: http://linux.chinaunix.net/doc/2004-10-05/16.shtml#324lfindex0Directory : /proc---A virtual file system Loading the proc file system View/proc's Files Get useful system/kernel information Information about

First, Scopecreating, changing, and locating variable names in a Python program is done in a space where variable names are stored, which we call namespaces, also known as scopes. The scope of the Python is static, and the location of the variable

How to record terminal output?Try using the script command-line tool to create an output record for your terminal output. script caimz.terminal.session #Caimz.terminal.session is a random name, I am conducive to recognize the name I can

Introduction to Commands:This command is used to list information about users who have logged in to the system in the past. Directive English literal: Show listing of last logged in usersExecute permissions: Some require special

Copy Code code as follows: --cast and CONVERT functions percentage DECLARE @dec Decimal (5,3), @var varchar (a), @hun decimal (5,1) Set @dec =0.025 Set @hun = @dec *100 Set @var =cast (@hun as varchar (20)) + '% ' Select @var Convert---

1, you can use Oradebug or strace-p to track whether the background or the foreground process dead or hang2, if the process fails, will be in the corresponding TRC file to write the latest information, based on this can obtain very important

Server planning: The entire system in the RHEL5U1 server 64-bit version, by the Xen-based virtual machine, wherein the cluster management node * 2, SQL node * 2, Data node * *, Web Service node * *, the data node is made up of 2 groups, each group

Bind9.2 forward desorption always goes wrong and returns normal-Linux Enterprise Application-Linux server application information. The following is a detailed description. Positive error: connection timed out; no servers cocould be reached Named

Oracle Constraints * If a constraint only applies to individual fields, you can define the constraint at the field level or at the table level. However, if a constraint acts on multiple fields,Constraints must be defined at the table level* When

Opensslprogramming examples (including example examples)   OpenSSL programming (including complete examples) See 1. Writing Purpose It is not easy to run the OpenSSL example for the first time. The purpose of this article is to make this process

Kaixinnet (kaixin001.com) is an SNS service that I often use. It uses a popular lamp combination, at the same time, its Alexa ranks around 134 (the actual data may be slightly different from this). Out of curiosity, I used curl to read a header and

function Singledectohex ($DEC) { $tmp = ""; $dec = $dec% 16; if ($dec return $tmp. $dec; $arr =array ("A", "B", "C", "D", "E", "F"); return $tmp. $arr [$dec-10]; } function Singlehextodec ($hex) { $v =ord ($hex); if (47return $v-48; if (96return $v-8

In Linux, it provides a widely used BIND server, which is the most common server software for building DNS servers. There are many articles about BIND installation. Now let's talk about the maintenance topic. How can we understand the running status