dec vt220

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Analyze whether the Oracle process dead or fails with Oradebug Short_stack and strace-p

>---view TRC file directories[Email protected] trace]$ Ll-lhrt *lgwr*|tail-10f-RW-R-----1 Oracle oinstall 213 DEC 19:05 GUOWANG_LGWR_5297.TRM-RW-R-----1 Oracle oinstall 2.4K DEC 19:05 guowang_lgwr_5297.trc-RW-R-----1 Oracle oinstall 2.3K DEC 01:05 GUOWANG_LGWR_22295.TRM-RW-R-----1 Oracle oinstall 27K DEC 01:05 guowang_

Practice: Build a MySQL Cluster based on load balancer

$ | grep ABCDEFG ' if [$TEST! = ' 1 ']; Then echo "OK" Else echo "FAIL" #/bin/echo | Mail [Email][email Protected][/email]-S "NOTICE: $ failed to provide email service" Fi Note: A MySQL client is required on two probe nodes. Principle: lvs.cf Specifies this script, in fact, to the Load Balancer node on the Nanny program call, LVS.CF in the%h parameter represents the time to call this script with the HOSTNAME/IP address parameters. The purpose of this script is to co

[Reprint:] C # and Fortran mixed programming local call FORTRAN dynamic link library

Sources file folder and select New Item.Add a new Fortran fileThe Fortran code is then written. Here we mainly implement two methods:One method is to ask for a sum of two numbers and return the result.The other is to enter an array, sort the array, find the maximum value, return the sorted result, and return the maximum value.Here we are demonstrating the difference between a number in Fortran and an array.The basic syntax of FORTRAN is not the scope of this article, please read the information

[Oracle] physical volume uard maximum performance mode deployment

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 [Root @ edbjr2p1 ~] # Su-oracle [Oracle @ edbjr2p1 ~] $ Dbca The database creation process is omitted... ORACLE_SID = ORCL 2. master database Parameters [Oracle @ edbjr2p1 ~] $ Export ORACLE_SID = ORCL [Oracle @ edbjr2p1 ~] $ Sqlplus/as sysdba SQL *

OracleAWR report generation and viewing

peng Specify the Report Type~~~~~~~~~~~~~~~~~~~~~~~Wocould you like an HTML report, or a plain text report?Enter 'html' for an html report, or 'text' for plain textUlts to 'html'Enter value for report_type: text Type Specified: text Instances in this Workload Repository schema~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~ DB Id Inst Num DB Name Instance Host--------------------------------------------------------* 620748923 1 PENG peng localhost Using 620748923 for database IdUsing 1 for instanc

Innobackupex:Error:xtrabackup child process has died At/usr/bin/innobackupex

/forums/questions-discussions/percona-xtrabackup/13396-file-name-ib_ logfile0-innodb-file-operation-call-open-returned-os-error-71[Email protected] mysql]# ls-ltrTotal 180-rw-r--r--. 1 root root 2496 Jul-rw-r--r--. 1 root root 17987 Jul COPYING-rw-r--r--. 1 root root 104897 Jul install-binaryDrwxr-xr-x. 2 root root 4096 Dec 18:39 docsDrwxr-xr-x. 3 root root 4096 Dec 18:39 includeDrwxr-xr-x. 4 root root 4096

Monitor domain availability and send emails automatically

/Main. cf Previously, my myhostname and mydestination formats were rejected by Netease mail because they did not meet the requirements (name @ machine-name: From MAILER-DAEMON sat Dec 1 21:22:58 2012From export yanh @ export yanh-virtualbox Changed: From MAILER-DAEMON sat Dec 1 23:10:20 2012From baiyanh@baiyanh.com You can, but there is still a problem with sending it to the

Solution to the Problem of RMAN-05021 in slave uard Environment

content in the Backup Recovery statement during Backup. RMAN> list backup summary; List of Backups ==================== Key ty lv s Device Type Completion Time # Pieces # Copies Compressed Tag ----------------------------------------------------------------- 61 B A DISK 21-DEC-15 1 1 NO TAG20151221T153209 62 B F A DISK 21-DEC-15 1 1 NO TAG20151221T153322 63 B F A DISK 21-

Centos7 modify ssh port!

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 ~]# whereis sshssh: /usr/bin/ssh /etc/ssh /usr/share/man/man1/ssh.1.gz[root@niche ~]# cd /etc/ssh[root@niche ssh]# lltotal 272-rw------- 1 root root 242153 Jun 9 2014 moduli-rw-r--r-- 1 root root 2123 D

Crack UltraISO v9.5.2

installation 00C0E001> 60 pushad 00C0E002 E8 03000000 call UltraISO.00C0E00A 00C0E007-E9 EB045D45 jmp 461DE4F7 00C0E00C 55 push ebp 00C0E00D C3 retn 00C0E00E E8 01000000 call UltraISO.00C0E014 00C0E013 EB 5D jmp short UltraISO.00C0E072 After shelling 00401620> $/EB 10 jmp short dumped.00401632 00401622. | 66: 623A bound di, dword ptr ds: [edx] 00401625. | 43 inc ebx 00401626. | 2B2B sub ebp, dword ptr ds: [ebx] 00401628. | 48 dec eax 00401629. | 4

Create a soft link in ln-S

Create a soft link in ln-S Ln-S is used to create soft links, which is equivalentWindowsIn the shortcut, the command for creating the file TTT in the upper-level directory in the current directory named ttt2 soft link is ln-s .. /TTT ttt2. If the original file is deleted as the TTT file, ttt2 becomes an empty file.Ln-D is used to create a hard link, which is equivalent to a copy of a file in windows. When the original file is deleted, the content of "copy" is not affected. [Archfree @ localhost

In linux, OpenGL reads JPG, PNG, TAG texture data, and opengltag

In linux, OpenGL reads JPG, PNG, TAG texture data, and opengltag The code for actually reading images has been uploaded to my resources. The following is an example (the code is not rigorous and can be taken together ): Unsigned char * esLoadJPG (const char * fileName, int * width, int * height, int * size){FILE * f = fopen (fileName, "rb ");Fseek (f, 0, SEEK_END );* Size = ftell (f );Fseek (f, 0, SEEK_SET );Unsigned char * data = (unsigned char *) malloc (* size );Fread (data, 1, * size, f );In

Oracle em cannot be started. The not found error is returned.

After Oracle 11g r2 is installed and the database is created, start em and report OC4J_DBConsole_source_ora11g not found error. em cannot start. [Oracle @ source ~] $ Emctl start dbconsole Enter the Configuration file./oracle/product/10.2.0/db_1/Solaris/j2ee/OC4J_DBConsole_source_ora11g not found. Because it is a new environment, re-create the archive database and reconfigure the Database control [Oracle @ source admin] $ emca-repos drop -- delete the current database Started emca at

Understanding proc file system

until VFS calls it to request files and directories of I-nodes.Load the proc file systemIf the proc file system is not loaded yet, run the following command to load the proc file system:Mount-T proc/procThe above command will successfully load your proc file system. For more details, see the man page of the mount command.View/proc files/Proc files can be used to access information about the Kernel Status, computer attributes, and the status of running processes. Most files and directories in/pr

/Proc file system

the latest information about the physical environment of the system. Although files in/proc are virtual, they can still be viewed using any file editor or programs such as 'more', 'less ', or 'cat. When the editing program tries to open a virtual file, the file is created out of thin air by the information in the kernel. Here are some interesting results I got from my system: $ ls -l /proc/cpuinfo-r--r--r-- 1 root root 0 Dec 25 11:01 /proc/cpuinfo$ f

Install redis on centos

: Compile and install Make malloc = libc[[Email protected] redis-4.0.6] # Make malloc = libc Add files under the/usr/local/redis-4.0.6/src directory to the/usr/local/bin directory Cd src make install [[emailprotected] redis-4.0.6]# cd src make install CC Makefile.dep Hint: It‘s a good idea to run ‘make test‘ ;) INSTALL install INSTALL install INSTALL install INSTALL install INSTALL install    Step 6: test whether the installation is successful Switch to the redis src directory first[[Ema

An analysis of PHP ASCII code conversion Class _php Tutorial

Copy CodeThe code is as follows: Class ASCII { function decode ($STR) { Preg_match_all ("/(d{2,5})/", $str, $a); $a = $a [0]; foreach ($a as $dec) { if ($dec { $utf. = Chr ($DEC); } else if ($dec { $utf. = Chr (192 + (($dec-($dec%

Linux shell Scripting--rendering data (v)

without deleting the fileCode 5-18  Create a local temporary file, point can be added without adding at least 3 x at the end and only X (must be capitalized)Code 5-19[Email protected]:/data# mktemp test. Xxxtest.otx[email protected]:/data# mktemp Test. Xxxxxtest.gydv4[email protected]:/data# ls-ltotal 0-rw-------1 root root 0 Dec 5 05:29 test.gydv4-rw-------1 root R Oot 0 Dec 5 05:29 test.otx  Using Mkte

Linux time and time zone modifications

1. Check the system time[[Email protected] ~]# DateThu Dec 23:25:33 CST 2012[[Email protected] ~]# date + "%y%m%d%h:%m:%s"20121220 23:12:542. View hardware TimeThe system clock is the clock in the current Linux kernel, and the hardware clock is a battery-powered clock on the motherboard that can be set in the BIOS. When Linux starts, the hardware clock reads the settings of the system clock, and the system clock is independent of the hardware.[Email p

Flash Back in Oracle

protected]> CREATE table t (x int);Table created.2. Initialize data [email protected]> INSERT INTO T values (1);1 row created.[email protected]> commit;Commit complete.[email protected]> INSERT INTO T values (2);1 row created.[email protected]> commit;Commit complete.3. View the data in the table, the reason why the rowID field is used is convenient for later experiment reference. [email protected]> select rowID, x from T;ROWID X----------------------------aaasvaaafaaaaayaaa 1 Aaasvaaafaaaaayaa

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