monitoring is "Openfiles/localon", which enables the system global flag "maintain object list" and requires a system restart to take effect. After restarting the system, you can see the list of open files for each process by executing "Openfiles" with no parameters at the command prompt.
Cause two: File system corruption
Bad zones, other hardware failures, or software errors on the disk can corrupt the file system and cause problems with the file
tail-f a.txtRoot 8401 7983 0 00:08 pts/3 00:00:00 ps-efView files that are still in the process of being called after the file is deleted:[Email protected]/]# Lsof|grep delTail 3247 root 3r REG 8,3 8427 5042/a.txt (Deleted)Retrieve the file by locating the corresponding process number in the/PORC directory:[Email protected]/]# ll/proc/3247/fd/Total 0LRWX------1
Tags: file_dump restore relink FD RecoveryAccording to the previous article, the entire recovery process can be done using scripting, saving time and increasing the success rate of recovery.This method is valid for data files that are mistakenly deleted, including online Redo,undo,control file, system, or normal data files.The whole process is divided into two parts:The first part is to hold the file descri
This happened, two weeks ago, when I was writing llt and adding code coverage. Suddenly, where's my code, where's My code? Because I'm not familiar with eclipse, the code is just like I deleted from the disk. Then rushed to call colleagues, colleagues said if deleted, and the Recycle Bin also rice, then really did not.So I rushed to find the Recycle Bin, a variety of recovery
.ext3grep.stage1[emailprotected]:[/recovery]: MV Vdb1.ext3grep.stage1 Vdb1.ext3grep.stage1.bak01root@10. 123.10.23:[/recovery]: ll total dosage 2808-rw-r--r--1 root root 124904 September 13 18:08 scan.log-rw-r--r--1 root root 2737031 September 17:27 Vdb1.ext3grep.stage1.bak01[emailprotected]:[/recovery]: EXT3GREP/DEV/VDB1--accept-all--ls--inode 2 > Scan.logwarning:failed to open file ' Locate_output '. See Locate.ccroot@10. 123.10.23:[/recovery]: Then generally we
Tags: style blog http io ar color using SP filesToday, a colleague found me that his database is unusable, I hope I can help to study it.In fact, I do not have a database in-depth study, just when you like to look at the online master of the information, when things are customary to combine master data to try to experience.Let's study it together.Colleagues said he wanted to back up the database tablespace file Tnits_bak_2.ora, after backing up the habitual delete the original file, and then wan
Use lsof to restore accidentally deleted files-Linux general technology-Linux technology and application information. The following is a detailed description. First, we will introduce some basic concepts of objects. objects are actually links to inode. inode links contain all attributes of objects, such as permissions and owners, data block address (the file is stored in these data blocks on the disk ). whe
In daily work, because I am not familiar with the InnoDB engine, many people in the group have mistakenly deleted InnoDBibdata (data files) and ib_logfile (redolog redo transaction log files ), the result is a cup. For example
In daily work, because I am not familiar with the InnoDB engine, many people in the group have mistakenly
In general, the computer on the deleted files are can be found in the Recycle Bin, but for many people, because of fear of computer garbage too much, so often need to recycle Bin garbage files, but here, if you want to perform this operation later, it is recommended that you will be inside the documents confirmed , you must not delete after the discovery, the ori
Delete file will go to Recycle Bin
The files or folders that we delete in the quick drive (Figure 1) are sent directly to the Recycle Bin of the fast disk, which we will see in the Recycle Bin and can be recovered.
Figure 1 Deleting a file
Second, enter the Recycle Bin to find files
If we delete a file or folder, you can open http://www.kuaipan.cn, enter your account and pa
Objective
1, this method only describes how to save the table name (data does not recover) if you want to restore the original data directly with Extundelete to restore the file back to the
2, and is applicable to usually not fully prepared in the case if there is a full preparation of the FRM and IDB documents can be put back on it
3, this method is also suitable for data table migration (migrate only one table) because the speed of discard and im
tail-f a.txtRoot 8401 7983 0 00:08 pts/3 00:00:00 ps-efView files that are still in the process of being called after the file is deleted:[Email protected]/]# Lsof|grep delTail 3247 root 3r REG 8,3 8427 5042/a.txt (Deleted)Retrieve the file by locating the corresponding process number in the/PORC directory:[Email protected]/]# ll/proc/3247/fd/Total 0LRWX------1
:00 tail-f a.txtRoot 8401 7983 0 00:08 pts/3 00:00:00 ps-efView files that are still in the process of being called after the file is deleted:[Email protected]/]# Lsof|grep delTail 3247 root 3r REG 8,3 8427 5042/a.txt (Deleted)Retrieve the file by locating the corresponding process number in the/PORC directory:[Email protected]/]# ll/proc/3247/fd/Total 0LRWX-----
If the file is not backed up, it is deleted, and the garbage collector is emptied, how do we restore the data?First, think back to the possibility that these files could exist somewhere else, such as a removable hard disk, a mailbox, a variety of cyberspace, or a memory card, etc. If not, you must immediately close some of the software you are using, especially if you want to stop using all the real-time ca
What if the deleted files in the system are recovered? Many times, people still rely on the repair registry or Third-party software to achieve this, however, the small series today to introduce a more convenient way, using the Win7 system protection features to recover deleted file
Article Title: how to restore accidentally deleted files in Linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
As a multi-user, multi-task operating system, once the files in Linux are
How do you recover a data file in Oraclek after it has been mistakenly removed from the OS system? Do not panic at this time restart the database or the operating system, you can retrieve data files by DBWN process-related handles.
Test:
Step 1: Log in to the database as a DBA and view the path to the table space State and data file
[Oracle@localhost ~]$ Sqlplus/as SYSDBASql*plus:release 11.2.0.4.0 Producti
type
Take a closer look at the Blocks below the file's timestamp: nothing. So let's take a look at the next block:FS block 2129985 logged at sequence 405648, journal block 64
(Inode block for inode 2121567 ):
This Journal has block information:Blocks: (0 + 1): 2142216
This is the address of the deleted file. let's run the recovery command again:$ Sudo dd if =/dev/sda5 of =/home/hchen/mytest_recovered.txt bs = 4096 skip = 2142216 count = 1
Let's check
Hello everyone, do we usually have some documents accidentally deleted? was deleted, how to do, restore chant, you can restore the file software, ask for money AH. Can small make up me, do not want to spend money, how to do? Now, I'm going to learn a little bit. Files are deleted without the need for file recovery soft
Reprinted at: Workshop. Although the DELETE command only marks the deletion in the file node and does not actually clear the file content, other users and some processes with disk write operations will soon overwrite the data. However, you can recover a Linux instance that is used by a single machine in your home, or rectify the file by mistake.1. A brief introduction to the ext2 File System StructureIn the ext2 File System Used in Linux,
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.