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.===========================================================================================================4. Compare SnapshotsCompare snapshots to see the difference between backup files between two snapshotsExecute commandHDFs Snapshotdiff Execute command HDFs Snapshotdiff Results Results: + The file/directory has been created. - The file/directory has been delet
Environment: centos7.2Software: redis-3.2.10 (yum installation)Scenario One: Before the company's Redis does not open aof mode, has been an RDB mode, but the data is very important, the data can not be lost, so need to open aof, but Redis default is to load data from appendonly.aof, Systemctl start Redis, the database is empty because we don't have a appendonly.aof file, and when you close Redis, the Dump.rdb is emptiedScenario Two: Redis database mig
to try to recover the data in the database by rebuilding the transaction log. If you only have MDF files, the problem is more complicated and we need to rebuild the transaction log directly:1. Create a new database with the same name in SQL Server, and then stop the SQL Server service.2. Overwrite the. mdf file for the new database with the original LDF file and delete its log
IPv4 10005 0t0 tcp *: 850 (Listen) hpiod 3890 root 0u IPv4 12249 0t0 TCP localhost. localdomain: 2208 (Listen) hpssd. PY 3895 root 4u IPv4 12267 0t0 TCP localhost. localdomain: 2207 (Listen) sshd 3908 root 3u IPv6 12303 0t0 tcp *: SSH (Listen) sshd 3908 root 4u IPv4 12305 0t0 tcp *: SSH (Listen) sendmail 3939 root 4u IPv4 12415 0t0 TCP localhost. localdomain: SMTP (Listen) avahi-dae 4149 avahi 13u IPv4 12875 0t0 udp *: mdns avahi-dae 4149 avahi 14u IPv6 12876 0t0 udp *: mdns avahi-dae 4149 avah
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Some time ago, I helped a friend recover a damaged dmp file, which is more than 100 Gb. I recorded the recovery process and briefly summarized it.I. DescriptionThis dmp file is exp from an Oracle 9i Database. Two types of errors may occur randomly when importing the Oracle 11g version, as shown below (1) when the dmp file
Restore the database if the archive log is lost and the data file is damaged.Restore with rman, archive loss, recovery to the specified sequence1. When the database is open, perform some operations to determine the archive log file of these operations. SQL> select group #, sequence #, members, status from v $ log;GROUP # SEQUENCE # MEMBERS STATUS-----------------
/app/oracle/oradata/orcl/wind01.dbf '--Recover data file recover DataFile '/u01/app/oracle/oradata/orcl/wind01.dbf ';--online data file ALTER DATABASE DataFile '/u01/app/oracle/oradata/orcl/ Wind01.dbf ' Online;select count (*) from T1; COUNT (*)----------99000 successfully recovered.----5. Simple Verification ls/u01/app/oracle/oradata/orcl/| grep windwind01.dbfselect Count (*) from T1; COUNT (*)---------
Error when you open IIS Manager or configure a Web site: The XML format of the configuration file is incorrectand is the applicationhost.config problem, then it must be ApplicationHost.config is destroyed, IIS crashes.The solution is to restore applicationhost.config.Check the ApplicationHost.config file in the C:\Windows\System32\inetsrv\config directory first, it is best to back up a copyUse the AppCmd.ex
To back up the database:pg_dump-h localhost-u root demo02 >/home/arno/dumps/demo02.bakTo recover a database:psql-h localhost-u root-d Demo Backup table:pg_dump-h localhost-u root demo02-t books >/home/arno/dumps/books.bakRecovery table:psql-h localhost-u root-d demo-t Books Psql Copy to/from usage:1. Need to log in to the database using Postgres Super User psql-u postgres-d demo022. Saved/Read folders need to give Postgres user permission to read and write3. Exporting data to a
Test environment: Windows Azure Shanghai Room, virtual machine configured for large (quad core, 7 GB memory), the disk situation is shown in the figure below. The database backup compression file is greater than 12.0 GB (12,914,327,552 bytes), placed in temporary Storage (D:). The database restore operation commands are as follows: RESTORE DATABASE [Cnblogstext] from DISK = N ' D:\cnblogstext.bak ' with FI
Two days ago, due to forced shutdown, data files in the database were damaged. One database cannot be started and the media needs to be restored. Follow the online method: Login data: sqlplus "/as sysdba" Disable data: shutdown immediate; Then start the data: startup; An error was reported during startup: ORA-01113: File 1 requires media recovery ORA-01110: Data F
Record the recovery process for SQL Server2008 log file corruption:Environment: System Windows Server2003Database SQL Server2008Failure reason: The user interface is inconsistent when linking the same server through MSTSC. The decision to restart the server, the application is not properly closed (the program is accessing the database), causing the database log file
-01139: RESETLOGS option only valid after an incomplete database recovery The prompt "resetlogs" is available only after an incomplete database is restored. In this case, we will restore the database to it:SQL> recover database using backup controlfile;ORA-00279: change 1736992 generated at 01/18/2014 18:01:56 needed for thread 1ORA-00289: suggestion:/U01/app/oracle/product/11.2.0/db_1/ora_log/invalid route 837194464.dbfORA-00280: change 1736992 for t
Prepare toolsPrepare u-depth USB flash drive firstSolution1. u deep U disk boot insert into the computer and then set the u disk boot after entering the interface we select "[02] U deep WIN8 PE Standard edition (New Machine)", as shown in the following figure:2. After entering the pe System, click "windows-hard disk partition-bootice (partition, boot, BCD edit, G4D Edit)", as shown in the following figure:3. In this interface, click "physical disk" and find the targ
Basic Linux and UNIX program development tutorial----- Reading Notes Chapter 4 backup and recovery of the file system1, # tar-CF all.tar *. jpgThis command is to pack all. jpg files into a package named all.tar. -C indicates that a new package is generated.-F specifies the package file name.# Tar-RF all.tar *. gifThis command adds all .gif files to the package of
Startuplog::->record = Readcheckpointrecord (Xlogreader, Controlfile->checkpoint, 1, true)->record = Readrecord (Xlogreader, Controlfile->checkpoint, LOG, true)->record = Xlogreadrecord (Xlogreader, ControlFile- >checkpoint, errormsg);->readoff = Readpageinternal (State,controlfile->checkpoint-(ControlFile-> CheckPoint% Xlog_blcksz), Min (ontrolfile->checkpoint% xlog_blcksz + Sizeofxlogrecord, Xlog_blcksz));->|-- Pageptr=controlfile->checkpoint-(controlfile->checkpoint% Xlog_blcksz) |--targetpag
There was no time to look at the recovery flash contents. Yesterday, my hands were itchy and I had no flash brush for a long time. However, I have read all the refresh kits on the hard disk, but I find that none of them are what I want, and many of the software in my custom refresh kits are outdated. After the refresh, I have to download updates one by one, it was troublesome to think about it, so I decided to create an extremely streamlined package +
EXEC sp_attach_db @ dbname = 'dbname ', @ Filename1 = 'd: \ dbname_Data.MDF ', @ Filename2 = 'd: \ dbname_log.ldf' Sp_attach_single_file_db @ dbname = 'dbname', @ Physname = 'physical _ name'Dbname: name of the database to be restored.Physname: physical file name.Physical_name: Specifies the. mdf file path. Database: mssql server 2000 Enterprise EditionProblem description: Database doubt. The database bac
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