File System RelatedFS.AIO-NR = 0 Current AIO requests Fs.aio-MAX-NR = 1048576 Maximum allowable number of AIO requests fs.file-NR = 3456 0 94159 Number of allocated files handle /allocated but not used/ max file handlefs.file-max = 94159= 1048576nr_ Open is the maximum number of files a process can open fs.inode-nr = 13030 1629 lists the Inode-The first two item of state, which can be skipped without looking at Fs.inode- State = 13030 1629 0 0 0 0 0 T
Format formatted with the SVN version number I guess corresponds to the following:1.4.x corresponds to format 21.5.x corresponds to format 3......1.8.x corresponds to format 6Then each format created by the repo to use the corresponding version of Checkout,Otherwise, there will be an error.Specific solutions See: http://lailife.blog.163.com/blog/static/19949016120111022112645382/I've built a 1.5 svn server again.APACHE2+SVN expected FS format ' 2 '; F
A problem with an NFS mount error was encountered today with the following error message:
Mount:wrong fs type, bad option, bad superblock on 125.64.41.244:/data/img,Missing codepage or helper program, or other error(for several filesystems (e.g. NFS, CIFS) you mightNeed a/sbin/mount.In some cases useful info are found in Syslog-tryDMESG | Tail or soAccording to the error prompts, see/sbin/mount.
Workaround:
The code is as follows
Co
],listener_callback (Stats of current file, stats before change)); 4. Directory OperationsFs.mkdir (path, permission mode/777, callback function); Fs.rmdir (path, callback function); Fs.readdir (Path, callback function (Err,filenamearray)); 5. Link file operationsCreate a link fs.link (srcpath, Dstpath, [callback]) fs.symlink (destination, path, [type], [callback]) Read the link to the path fs.readlink (path, [Callback (ERR,LINKSTR)]) Fs.unlink (Path,[callback]); Nodejs
//Write Filevardata = "Hello World"; Fs.writefile (' C:\\a.txt ', data, ' ASCII ',function(err) {if(Err) {Console.log (' Write file Failed '); } Else{Console.log (' Save the success, hurry to see garbled it '); }});//Read FileFs.readfile (' C:\\a.txt ', ' ASCII ',function(err, data) {if(Err) {Console.log (' Write file Failed '); } Else{console.log (data); } });//[Note: By default, the data is encoded as utf8;mode=438; Flag=w]What if I have Chinese?Because node. JS supports only the following enc
Environment: ubuntu14.04 kernel version Linux 3.13.0 OK6410Kernel compilation environment Linux 2.6 ....Uboot version 1.1.6Cross-compilation Toolchain ARM-LINUX-GCC 4.3.21, before compiling to install the cross-tool chain first, installation process see Bowen http://www.cnblogs.com/apolloenterprise/p/4324726.html2. Compiling ubootDownload Uboot source Code,Enter the Uboot source directory,$ make clean$ make Forlinx_nand_ram256_config$ make Arch=arm cross_compile=arm-linux-Will generate U-boot.bi
out_unregister;}klist_add_tail(priv->knode_bus, bus->p->klist_drivers);module_add_driver(drv->owner, drv);error = driver_create_file(drv, driver_attr_uevent);if (error) {printk(KERN_ERR "%s: uevent attr (%s) failed\n",__func__, drv->name);}error = driver_add_attrs(bus, drv);if (error) {/* How the hell do we get out of this pickle? Give up */printk(KERN_ERR "%s: driver_add_attrs(%s) failed\n",__func__, drv->name);}if (!drv->suppress_bind_attrs) {error = add_bind_files(drv);if (error) {/* Ditto *
Today, when sorting out the ramdisk udhcpc, we found that the ramdisk was running well. Add/share/udhcpc/default after/usr. after the script file and folder are run, an error is reported: EXT2-fs error (device ram0): ext2_check_page: Bad entry in directory # xx.
Symptom: when you use the LS command to view the udhcpc folder, the following error occurs, as shown in the title. Other folders are normal.
Solution: The ram space allocated to ramdisk is i
According to the official website installation method:
The following error may occur under the Ubuntu system:
Couldn ' t remove FS lock errno:9 Bad file descriptor
The file owner needs to be modified at this time
$ sudo mkdir-p/data/db/
$ sudo chown ' USERNAME '/data/db
The first sentence is to create your database folder, the second sentence to modify the owner of the folder
Then you can start the MongoDB successfully.
Reference: Stackoverflo
The computer room power outage, our server's CentOS system on the power-on then reported this error.
LFS kernel Panic-not syncing:VFS:Unable to mount Root fs on unknown-block (0,0);
Tried several methods, or the first thought of the most effective, solve the problem.
The workaround is as follows:
Find the installation CentOS boot disk, u disk or CD-ROM can, boot into the boot disk.
Select "Install or upgrade an existing installation";
Select a l
Need to prepare 2 filesApache-tomcat-5.5.25.zip (recommended to use TOMCAT6)Hdfs-webdav.war Unzip Tomcat# Unzip Apache-tomcat-5.5.25.zip Copy War to WebApps# CD apache-tomcat-5.5.25# Cp/soft/hdfs-webdav.war./webapps Start Tomcat to start deployment
Release date: 2012-03-14Updated on: 2012-03-15
Affected Systems:Linux kernel 2.6.xDescription:--------------------------------------------------------------------------------Bugtraq id: 49256Cve id: CVE-2011-2928
Linux Kernel is the Kernel of the
Release date:Updated on:
Affected Systems:Linux kernelDescription:--------------------------------------------------------------------------------Bugtraq id: 65588CVE (CAN) ID: CVE-2014-0069
Linux Kernel is the Kernel of the Linux operating
There are many functions related to the operation of the system. Can be divided into two categories first.
The class is asynchronous + callback. The class is synchronized.
In this case only to the asynchronous collation, synchronization only need
Physical Volume (PV): A physical volume is a separate hard drive (Hdisk0, Hdisk1 ...). )。
Volume group (VG): A volume group consists of one or several physical volumes (hard disks).
Logical Volume (LV): A volume group can divide several logical
LVM is a powerful feature of Linux, and mastering the common functions of LVM is an essential skill that eliminates some nonsense here.
The following are common methods of operation:New mounted bare Disk create partition# FDISK/DEV/SDBIf it is
Use array chain [4] To describe four different indexes, namely direct index, first-level indirect index, second-level indirect index, and third-level indirect index. Examples illustrate the meaning of each domain in this structure. If the block
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