filesystem

前沿 如果你的服务器是IDC机房租用的,或许机房技术人员统一安装的默认的系统类型,必然会出现LVM格式的分区.某一天,倒霉的服务器硬盘损坏,但服务器上面的数据正好没有做备份,这个时候只能将此服务器的硬盘取下来,挂载在别的正常的服务器上面,找回你需要的数据.然而,问题也就发生了- 在Linux下使用新硬盘安装系统,安装好以后再挂载原来损坏的硬盘,分区格式全为系统默认分区,系统默认使用的 是lvm格式,并且默认的卷都是 VolGroup00 使用 pvs 查看显示如下: [[email protected]

filesystem, lvmMay 3

这篇文章主要介绍了php中的filesystem文件系统函数使用示例,需要的朋友可以参考下 basename - 返回路径中的文件名部分 dirname - 返回路径中的目录部分 string basename ( string $path [, string $suffix ] ) string dirname ( string $path ) 示例: 复制代码 代码如下: <?php $path = "/home/httpd/phpha.com/index.php"; ech

filesystem, PHP, 文件系统April 6

最近折腾HTML5游戏需要离线存储功能,便把目前可用的几种HTML5存储方式研究了下,基于HT for Web写了个综合的实例,分别利用了Cookie.WebStorage.IndexedDB以及FileSystem四种本地离线存储方式,对燃气监控系统的表计位置.朝向.开关以及表值等信息做了CURD的存取操作. HTML5的存储还有一种Web SQL Database方式,虽然还有浏览器支持,是唯一的关系数据库结构的存储,但W3C以及停止对其的维护和发展,所以这里我们也不再对其进行介绍:Bewa

filesystem, Cookie, localStorage, indexeddbDecember 22

Exception in thread "main" java.lang.IllegalArgumentException: Wrong FS: hdfs://master:9000/index.html, expected: file:/// at org.apache.hadoop.fs.FileSystem.checkPath(FileSystem.java:390) at org.apache.hadoop.fs.RawLocalFileSystem.pathToFile(Ra

api, filesystem, hdfsAugust 12

Laboratory 3: Synchronization Using Semaphores 一:Objectives(实验目标) In this laboratory session, you are required to write a test program for the producer/consumer problem using semaphores for synchronization. After completing the session, you will _ ha

linux, filesystem, nachosNovember 24

原文:A study of Linux file system evolution, in FAST'13. 这是会议的最佳论文,分析了8年时间内六个主流Linux文件系统(Ext3,Ext4,XFS, Btrfs, ReiserFS, JFS)的5079个补丁,详细解答了什么补丁最多,什么bug最多等问题.这里将几个有意思的结论列出来. 1. 维护型补丁最多 维护型补丁包括改善代码的可读性,简化代码结构等等,此类补丁占了60%之多,足见良好的可维护性对于一个复杂的开源项目是十分重要的. 2.

debug, linux, filesystemOctober 9

由于在Windows下面对分区修改,导致grub所在分区由sda3变成了sda2了,这样一来找不到grub了,Ubuntu开机就出现了 grub rescue > 在此情况下,可以如下解决,并不用重新安装系统 第一步,找出你的Linux盘在那个分区以及grub目录在什么位置. 如果你还记得最好,忘了也无所谓,使用下面命令逐个试探即可: grub rescue>ls 回车后,ls命令会列出所有磁盘分区信息,如: (hd0,4),(hd0,7),(hd0,8),(hd0,9) 循环使用如下命令,直

ubuntu, filesystem, grub, Unknown, rescueJune 4

今天拿起手要用C++写个小工具,从指定的目录递归遍历文件,然后做一下处理.又翻了一下boost的filesystem库.小结一下,希望能加深印象,免得下次又要查看文档. 1. path对象就是一个跨平台的路径对象.有许多方法访问路径的各个部分,也用它的iterator迭代路径中的各个部分: path构造目录结构的时候使用"/"运算符,非常直观. 比如path p1; path p2 = p1/"something"; p1 /= "xxx.xxx"

filesystem, BOOSTFebruary 18

Function: Check the file system disk space occupancy. This command can be used to obtain the number of hard disk space is occupied, the current information such as how much space is left. Syntax: df [options] Description: df command to display all fi

localhost, working space, system path, linux, syntax, system administrator, hard disk space, system administrators, filesystem, disk partition, current information, system nodes, disk blocks, system disk space, hda2, proc file system, disk space usage, byte number, column blocksSeptember 26

Deployed on the server, multiple applications, suddenly found hard disk space usage reaches 76%, then use the df and du command to see the usage, found that many are caused to open the application log. df can view a folder size, using the ratio of fi

parameters, lib, application log, root directory, avail, folders, combination of the two, hard disk space, df, mapper, crux, filesystem, gb, directory files, partition size, shm, hard disk capacity, max depth, disk space usage, 104kSeptember 11

1. Fdisk partition Check the hard disk of: fdisk-l See mount of: df-lh See the future operation of the device name fdisk: fdisk / dev / sda There commond press p: view the partition table By n: the new partition (First cylinder press enter directly f

implementation, parameters, first test, root directory, linux, partition table, hard disk, filesystem, sda, mount dev, ext4, umount, fdisk, logical partitions, perform 2, disk partitioning, cylinder pressSeptember 9

Installation infobright encountered many problems, summarize. 1, first requires more than boost 1.4.2 installed. The original machine is older boost library version 1.3.3 2, Zhuangwan boost. Can not immediately use. Need to re-login. 3, in the proces

error error, configuration file, lib, xxxx, storage, ln s, library files, regex, program options, init function, filesystem, library version, ld, forward position, brighthouseSeptember 3

[Root @ B2Cmonitor xampp] # cat / etc / issue Red Hat Enterprise Linux Server release 5.3 (Tikanga) Kernel \ r on an \ m [Root @ B2Cmonitor xampp] # getconf LONG_BIT 64 [Root @ B2Cmonitor Server] # ls-l * bind * -R - r - r - 12 root root 984111 Jan 7

avail, rpm, linux, root root, sbin, red hat enterprise, kernel, enterprise linux, 4g, filesystem, x86, xampp, shm, jan 7, server root, server release, bind 9, os linuxAugust 16

/ Etc / filesystems Overview File system is a complete directory structure, including the root directory and any files under him, and the file system is limited to a single logical volume. All the files on AIX system information / etc / filesystems f

directory structure, attribute, existence, common property, root directory, operating system, property description, system information, tmp, centralized management, filesystem, disk cache, cd rom, aix, parallel process, system attributes, logical volume, statistical information systems, fsck command, ture valueAugust 16

nutch-1.2 with hadoop distributed search. 1, on-line search on nutch distributed configuration BLOG wrote some very detailed. What are the areas in question, I give here a connection <<nutch Distributed search configuration >> 2, where the mai

lt, ioexception, gt 2, 163, blog, unknown source, searcher, indexer, hadoop, filesystem, apache lucene, lucene search, hdfs, line search, nutchJuly 13

When the disk size exceeds the standard will be alarm, then if the master df and du command is a very wise choice. df can view a folder size, using the ratio of file system and mount point, but the file did not do anything. du can view the size of fi

root directory, avail, tmpfs, folders, combination of the two, df, free space, wise choice, crux, data1, code snippet, filesystem, disk space, directory files, partition size, shm, 100g, hard disk capacity, linux files, yayuJuly 9

Example 3-1. Displaying files from a Hadoop filesystem on standard output using a URLStreamHandler Java code / / Reading Data from a Hadoop URL public class URLCat { static { URL.setURLStreamHandlerFactory (new FsUrlStreamHandlerFactory ()); } public

main string, inputstream, hadoop, filesystem, streams, hdfs, static url, reading data, java code example, beaver hat, quangleJuly 4

See the official document has sentence: Quote When all space in a single container in an SMS table space is allocated to tables, the table space is considered full, even if space remains in other containers. The SMS table space is full as soon as any

statistics, avail, test1, containers, address type, partition, df, official document, 1m, filesystem, table space, sql command, mnt, fsc, sms, lrf, hwm, container sizes, freepgsJune 28

Hard disk file system is built on top Sector (Sector) for the smallest physical storage units, each sector is 512 bytes; Will form a circle sector, that is, cylinders (Cylinder), cylinders are divided slots (partition) the smallest unit; The most imp

principle, operating system, linux, partition table, hard disk, search data, filesystem, slots, hard drives, residual volume, physical storage, gathering information, storage units, mbr, flash file system, master boot record, superblock, disk defragmentationMay 27

Hard disk file system is built on top Sector (Sector) for the smallest physical storage units, each sector is 512 bytes; Sectors will form a circle, that is, cylinders (Cylinder), cylinders are divided slots (partition) the smallest unit; The first m

principle, sectors, data search, operating system, linux, hard drive, partition table, hard disk, filesystem, slots, residual volume, physical storage, gathering information, storage units, mbr, boot sector, inode number, master boot record, disk defragmentationMay 27

Tree can be divided into small sections, each in their own disk or partition. Main part of the root, / usr, / var and / home file system. Each section has a different purpose. Main Menu / Bin / Sbin / Etc / Root / Lib / Dev / Tmp / Boot / Mnt / Proc

system users, temporary files, system boot, simplicity, directory tree, partition, filesystem, disk space, home directories, single user, necessary documents, backup tool, boot file, system directories, functional tree, home students, home staff, man pages, spool directories, file sharing networkMay 25

# # See the file system occupancy # # H that with the G, MB, etc. to show that user to understand df-h Filesystem Size Used Avail Use% Mounted on / Dev/sda2 20G 15G 4.2G 78% / udev 7.9G 136K 7.8G 1% / dev / Dev/sda5 56G 47G 5.9G 89% / home / Dev/sda6

logs, jdk, lib, 3m, avail, linux, webapps, jre, filesystem, watchdog, 7g, shm, udev, max depth, 9m, 11mMay 17

/ * * Copyright (C) 2007 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * You may not use this file except in compliance with the License. * You may obtain a copy of the License at * * Http://

quot, open source project, debug, root user, writing software, config, ifndef, compass, apache license, applicable law, filesystem, warranties, adb, system server, external storage, build tools, input devices, dhcp client, traditional unix, camera devicesMay 17

When the disk size exceeds the standard will be alarm, then if the master df and du command is a very wise choice. df can view a folder size, using the ratio of file system and mount point, but the file did not do anything. du can view the size of fi

root directory, avail, tmpfs, folders, combination of the two, df, free space, wise choice, crux, data1, code snippet, filesystem, disk space, directory files, partition size, shm, 100g, hard disk capacity, linux files, yayuApril 25

Originally try mingw compile MongoDB, found to solve the compilation error a lot of things need to change. MongoDB branch in the window under the default is to use Microsoft's macro library, leading to frequent error mingw. All the way to solve the c

date time, debug, interpreter, compiler tools, workspace, program options, compilation error, filesystem, library copy, codecs, cpp, root folder, c client, macro library, static address, toolset, static library, static libraries, spider monkey, frequent errorApril 3

fsync Command Note that only support version 1.3 + fsync command allows us to flush all pending write operations are flushed to the data file. More importantly, it provides a lock option, it would be easier to backup. fsync command to force the datab

parameters, time database, cmd, async, slaves, filesystem, snapshots, 60s, database data files, sync command, fsync, example snapshot, timely returnApril 2

TFS (Taobao FileSystem) is a highly scalable, highly available, high performance Internet service for distributed file system, mainly for the vast amounts of unstructured data, it is built in an ordinary cluster of Linux machines can be provided for

file storage, high performance, source code analysis, extent, file names, scalability, linux, data structure, reliability, system availability, 1m, physical address, filesystem, unstructured data, internet service, memory access, linux machines, performance internetApril 1

Today for the first time you use AIX, encountered many problems ah 1 The first one is xmanager Rom, this is their own carelessness, forget it local firewall turned off, causing the interface is not (2) found that lack of space, first check the hard d

megabytes, adm, free space, filesystem, carelessness, free distribution, kilobytes, volume group, physical volume, partitions, lvs, hd2, quorum, ras, hd4, hd1, logical volumes, csd, ltg, 43776March 31

When the disk size exceeds the standard will be alarm, then if the master df and du command is a very wise choice. df can view a folder size, using the ratio of file system and mount point, but the file did not do anything. du can view the size of fi

root directory, avail, tmpfs, folders, combination of the two, df, free space, wise choice, crux, data1, code snippet, filesystem, disk space, directory files, partition size, shm, 100g, hard disk capacity, max depth, yayuMarch 29

MySQL error code 28 solution collection Today opened the virtual machine, create a trigger, you can succeed, but the show triggers when the report about the error: Got error 28 from storage engine The following is a detailed error code. mysql> show t

storage engine, avail, virtual machine, 5g, tmp, space root, bs, df, mysql data, filesystem, disk space, message error, code message, 8g, shm, sufficient space, os error, virtual disk, error 1030, error code 28March 4

Translate a small article and thought English translation ^ _ ^ This original address: http://geekblog.oneandoneis2.org/index.php/2006/08/17/why_doesn_t_linux_need_defragmenting Translator: [email protected] People who use Linux often ask the question

translator, linux, fragment, translation, filesystem, fragments, small article, linux file system, incomprehensible, defragment, ascii graphics, technical answersFebruary 20

1 in Debian with the rm command to delete files generally Delete the folder with the rmdir command If you want to shield the middle of the inquiry, together with parameters-f These very simple, Paul is to delete the folder rmdir command always requir

zh, language selection, default language, aptitude, folder name, statistical data, filesystem, rm command, text selection, empty folders, smbfs, 6g, size statistics, max depth, 21g, spacebar, selection interface, format rm, rmdir command, mount successFebruary 18

1 view model: SUn minicomputer models are written on the panel there, such as NETRA T 1125, There are such utra 5, utra 10 and so on. 2, view cpu number (error, incorrect, because the sun in the top command of the cpu can not see all the circumstance

init, informix, lv, cpu number, filesystem, fd, volume group, minicomputer, view cpu, logical volume, avail capacity, group status, cpu states, sun solaris, group directory, dsk, vx, model sun, logical position, c2tJanuary 17

1, HxlsAbstract.java import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; import java.io.PrintStream; import java.sql.SQLException; import java.util.ArrayList; import java.util.List; import org.apache.poi.

apache, import java, java util, java sql, import org, ioexception, sqlexception, abstract class, fileinputstream, implements, apple, arraylist, filenotfoundexception, filesystem, hssfworkbook, printstream, record import, dec 24January 6

Hbase + hadoop is not easy to say love you the stand-alone configuration (a), it seems very easy to ah, how difficult it? Process is that, previously hbase-site.xml configuration file like this <value>hdfs://129.42.13.118:9000/hbase</value> So

apache, java lang, lt, init, configuration file, hostname, hbase, hadoop, filesystem, hdfs, java client program, validation testJanuary 6

import java.io.FileInputStream; import java.io.FileOutputStream; import java.math.BigDecimal; import java.text.NumberFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.Date; import java.util.Iterator; import java.util.Lis

apache, import java, java util, import org, java math, fileinputstream, arraylist, type string, iterator, java text, bigdecimal, dynamic creation, fileoutputstream, filesystem, hssfworkbook, palette, webcallJanuary 5

Be sure to indicate the source reproduced Taobao QA Team , the original address: http://qa.taobao.com/?p=10514 Introduction Taobao <br /> recently learned that the project uses more up hadoop, hadoop for many testers may be a new play, therefore, to

lt, implements, google, programming model, programmers, taobao, hard disk, acquaintance, stable system, mass data, programming framework, hadoop, ladder, filesystem, computer cluster, parallel programming, parallel programs, transfer speed, hardware failure, reading timeDecember 22

/ * ================================================ ==================== Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information reg

quot, import java, java util, import org, ioexception, fileinputstream, inputstream, writing software, iterator, apache software foundation, fileoutputstream, copyright ownership, apache license, asf, applicable law, license agreements, contributor, filesystem, hssfworkbook, andrew oliverDecember 14

What is a RamDisk Ram: Memory, Disk: Disk, part of the Linux memory can be used as a partition, called RamDisk. For some frequently accessed files and will not be changed, they can be placed through the RamDisk memory, can significantly improve syste

failure, system performance, access speed, linux, hard drive, formatting, filesystem, ram memory, hard drives, virtual file system, memory disk, kernel configuration, mount dev, virtual partition, calculation speed, web server computerNovember 30

import java.io.*; import java.util.*; import org.apache.poi.poifs.filesystem.*; import org.apache.poi.util.LittleEndian; public class WordTest { public WordTest() { } public static boolean writeWordFile(String path, String content) { boolean w = fals

apache, boolean, import java, java util, import org, string args, main string, string path, path string, filesystem, bytearrayinputstream, directoryentry, word directory, bais, wori, aaaaaaaaaaaaaaaaaNovember 18

By Hyperic-hq products based package sigar.jar to achieve access to the server state data. Sigar.jar package through local method calls to the operating system API to retrieve system-related data. Windows operating system Sigar.jar dependent sigar-am

import java, java util, import org, string args, main string, linux, dll, public class test, java server, windows operating system, filesystem, server status, cpuinfo, server state, x86 system, hyperic, operatingsystem, hq products, jugNovember 15

Thursday 11 November, 2010 by justinbmeyer Earlier this week, I realized that every organizing-a-jQuery-application blog, article, and conference talk misses the most important lesson on how to organize a jQuery app. They talk about how to organize a

software engineering, widget, demo test, unzip, apps, multiple services, page loads, file structure, regression test, sweetness, code 39, filesystem, domain policy, small pieces, sized pieces, incorrect decision, test history, bedrock, search messages, 11 novemberNovember 15

import org.apache.poi.hssf.usermodel.*; import org.apache.poi.poifs.filesystem.*; import java.io.*; import java.awt.*; import javax.swing.*; import java.awt.event.*; public class read implements ActionListener { JFrame frame; JLabel label1,label2; JT

lt, import java, import org, string args, public void, implements, main string, javax swing, java awt, actionevent, filesystem, awt event, hssfworkbook, aaaa, jtextfield, jbutton, bbc, frame show, tf2, tf1November 12

Device drivers in the linux kernel types played a special role, when the hardware and the internal programming interface to communicate when necessary, drivers will be in the runtime plug-in coming. The role of a device driver is providing mechanism,

programming interface, malloc, linux, input and output, capabilities, device driver, memory management, linux kernel, data packets, filesystem, network interfaces, networking, address resolution, resolution issues, linux device drivers, free pair, internal programming, necessary driversNovember 10

HSSF package to import a import org.apache.poi.hssf.usermodel .*; import org.apache.poi.poifs.filesystem.POIFSFileSystem; import java.io.FileInputStream; import java.io.FileOutputStream; public class TestReadAndWriteExcel { public static void main (S

apache, import java, import org, fileinputstream, quot quot, main string, fileoutputstream, wb, filesystem, file stream, sheet1, hssfworkbook, cell1October 12

HDFS on DistribuitedFileSystem recently conducted in the transformation objective is to implement a customization of the DFS. Obviously, the idea is likely to be the following: First, the full realization of a new DFS, apparently also too much diffic

class interface, plug ins, efficiency, new features, customization, judgments, head first design patterns, realization, final choice, hadoop, filesystem, interface clients, periphery, time title, dfs, lightweight, pattern reference, community practices, unexpected conditions, configurable optionsSeptember 30

Development Environment: ununtu10.04 Eclipse3.6 mysql5.1 tomcat6.0.29 The technology used: Spring3.0 + servlet2.5 + jsp + jquery + ibatis2.x + lucene3.x + heritrix1.4 As the development of previously used windows, linux developers to use during this

utf 8, default character, variables, development environment, developers, garbage problem, configuration changes, filesystem, default support, vertical search engine, core xml, environmental issues, installation default, inf file, search engine problems, smooth integration, web changesSeptember 25

Any one working copy directory includes a file named. Svn management area, usually a list of operation does not show this directory, But it is still a very important directory, no matter what you do? Do not delete or change anything in this managemen

subversion client, filesystem, simple solution, copy directory, management areaSeptember 21

Reference: Installing Oracle 10g Release 2 Enterprise Edition on Red Hat Enterprise Linux 4.8 (x86_64) within 60 minutes https://www.oratoolkit.ch/knowledge/howto/installation/eeSrv-10g-R2-on-RHEL-4.8-x86_64.php Notes: oraToolKit default path for ins

installation path, rpm, red hat enterprise, default path, enterprise linux, u1, filesystem, passwd, 2g, 60 minutes, smp, shm, gnu linux, oracle software, oracle user, ivh, changing password, unix password, authentication tokens, otkSeptember 17

http://blog.csdn.net/jamesfancy/archive/2007/07/22/1702187.aspx Tags and branches in any version control system is very important functions. Subversion unique creative these organic combination together. Precisely, Subversion is no tags and branches,

personal habits, habit, subversion, repository, repositories, pop up menu, labels, subdirectories, tortoisesvn, filesystem, windows explorer, version control system, pilot, dri, label changes, organic combination, label copyOctober 18