ssd failure recovery

MySQL Master/Slave Failure Recovery using bin-log When MySQL Master/slave fails, first view the slave database show slave status \ G Remember the pos and binlog files of the bin-log (usually select the last point of the last pos for recovery) or view the time point of the mysql error log, Converts mysql-binlog to txt to view every operation of the database. M

PHP Session control expiration time and expiration recovery mechanism session life cycle从session的初始化开始，直到注销的这段时间称之为sesssion生命周期。Set the correlation parameters in the session life cycle re-php.inisession.save_path 设置保存的session文件路径。session.use_cookies = 1 设置为1时，利用cookie来传递sessionidsession.cookie_lifetime = 0 （默认为0） 设置sessionid在客户端cookie存储的时间，默认为0，即关闭浏览器就失效。session.gc_maxlifetime = 1440(默认值 单位为秒) 设置session存活时间 原理：每次GC启动后，会通过stat得到session文件

: No such file or directory --related error log 5. Forcing the database to close[email protected]>shutdown Immediate--Close database errorOra-00210:cannot Open the specified control fileOra-00202:control file: '/home/oracle/control_bak/control03.ctl 'Ora-27041:unable to open Filelinux-x86_64 error:2: No such file or directoryAdditional Information:3[email protected]>shutdown abortORACLE instance shut down.[email protected]>startup--still error when starting the databaseORACLE instance started.T

operation is restored. Expected to complete within 2 hours.Scenario Two:Non-stop operation:Import the backup table of 3 o'clock in the morning to another library first. Then, by means of update, Salt=0 's operations are replaced today with the original data. The condition is the case of an equal ID.9: The leader says he can't stop the library. And we have to finish it in time. Not until tonight, okay. Only the second way, the developer who called the database executes the MySQL statement. Is ro

Password File recovery _ EM login failure solution 1. The default location of the password file is/u01/oracle/product/10.2.0/db_1/dbs/orapwSID. If the password file is damaged, you cannot log on remotely. em cannot log on. The error "username or password invalid" may occur. 2. You can recreate the password file: cd/u01/oracle/product/10.2.0/db_1/dbs orapwd file = orapwdv11 password = oracle entries = 5 forc

Tag: A 00600 error occurred while restoring a backup Errorsinfile/u01/admin/uidb/udump/uidb_ora_59394.trc:ora-00600:internalerror code,arguments:[krbrrd_bz2_ksfqrd_noblks],[/u01/test/db_0_uidb_dlq7rlus_1_1],[ 576000],[],[],[],[],[]fullrestorecompleteofdatafile 33/u01/oradata/CCSDATA/rdata_charge.Elapsedtime:0:00:08 checkpointis11698057536124lastdeallocationscnis 11352553399034fullrestorecompleteofdatafile50/u01/oradata/ccsdata/ jcccbarmanagerdata1.elapsedtime:0:00:02checkpointis 11698057536124l

node is consistent, it is not updated in a timely manner. This is typically used for geographically separate nodesProtocol B:Memory synchronization (semi-synchronous) replication protocol. Once the local disk write is completed and the replication packet reaches the peer node, it is considered to be written on the master node as completed. Data loss can occur in the case of simultaneous failure of participating two nodes because the data in transit m

Problem Description: On the aix5.3 system platform, there was a problem recovering from the informix11.5 database backup and could not be successful. Specific as follows:$ onbar-r-p-wBar_act.log Displays the following error message as "The chunk '/home/db/informix/fcadbs/logchunk2 ' won't fit in the space specified. errno = 2. "2. Cause Analysis:View the aix5.3 system platform architecture as a 32 system.#prtconf | grep ' Kener '32It is determined that because the core of the aix5.3 system

In Vim, the file recovery operation may not be performed using Vim in Linux many times, but some people do not know that Vim still has the file recovery function after an abnormal power failure. (Vim, you can also understand Vi. Vi on many machines is equivalent to Vim. You can use the alias command to View Details. If Vi is Vim, it is the same. No matter what, t

.png "title=" 1.png "alt=" Wkiom1mpabhdok6aaac-iq-zgiy446.png-wh_50 "/>3 database files in ASM Disk groups are detected using the North Asia Oracle File Detection ToolFigure II:650) this.width=650; "Src=" https://s2.51cto.com/wyfs02/M02/A4/59/wKioL1mpAaij_8sWAABtXHZSM9A990.png-wh_500x0-wm_ 3-wmp_4-s_2632545018.png "title=" 2.png "alt=" Wkiol1mpaaij_8swaabtxhzsm9a990.png-wh_50 "/>4 Use the North Asia Oracle Resolution tool to parse data records from all data files and import them into the new dat

bold conjecture, there may be the following reasons for ASMThe disk does not load properly:1, ASM related RPM package installation is not normal, such as version does not correspond;2, operating system-related security services caused;3, the system restarts when the rule rules are not properly configured, resulting in the ASM disk does not load properly;Exclude:1, Rpm-aq|grep oracleasm need to install 3 packs (kmod-oracleasm oracleasmlib oracleasm-support)2. Service iptables status (iptables se

backed up prior to import:Node74:/home/database/oracle/oracrs/bin #./ocrconfig-import/home/oracle/ocr.expCheck for OCR:Node74:/home/database/oracle/oracrs/bin #./ocrcheckStatus of Oracle Cluster Registry is as follows:Version:2Total Space (Kbytes): 975584Used Space (Kbytes): 3844Available Space (Kbytes): 971740id:811637621Device/file Name:/DEV/RAW/RAW1Device/file Integrity Check SucceededDevice/file Not ConfiguredCluster Registry Integrity Check succeededLogical corruption Check Succeeded---rep

1. Simulate the repair of MBR sector after being destroyed. MBR Failure Recovery:1. BackupAdd a hard driveTo start the operating system:To add a hard drive:To format a partition:Mount:Do backup:Destroying MBRRestart the system:Shutting down a virtual machineSet up disc bootRescue mode:Mount the hard drive to the/mnt/sysimageStart recovery:Start successfully!2. Grub Boot Failuresimulates the repair of a mast

Master and slave failed to first view from the database show slave status\gRemember Bin-log Pos and Binlog files (typically select the last point of the nearest POS to recover) or view MySQL's error diary at a point in time,Convert Mysql-binlog to TXT to see every operation of the databaseMysqlbinlog/Path/mysql-bin.000xxx >txt1.txtUseChange master to master_host= ' xxxx ', master_user= 'Mysync' , master_password= ' q123456 ',master_log_file= ' mysql-bin.xxx ', master_log_pos=xxx;The key is with

Phase III Kernel kernel to perform/sbin/init, you must be able to access the root file system first, because under Linux, the FileSystem starts with the root/directory, which is the root filesystem rootfs Linux is a single-core architecture The kernel itself is as small as possible, because the kernel is resident memory, and the kernel needs to support as many types of hardware as possible, through a modular design. Ko for dynamic loading and unloading of kernel modules.

/named.rfc1912.zonesCopy and paste line 37th to 42nd into line 43 and modify it to:Zone "254.25.172" in {The type master;The file "Lcdqqq.loopback";allow-update {none;};47};Vim/var/namedllCopy the Named.loopback to Lcdqqq.loopbackCp-p named.loopback Lcdqqq.loopback (-P: Full replication, even permissions copied)Enter the file to modify: (In this configuration file to the. End, otherwise auto-lcdqqq.com)@ in SOA dns.lcdqqq.com. Root.lcdqqq.com. (0; Serial1D; Refresh1H; Retry1W; Expire3H); Minimum