Search Results

Search found 82005 results on 3281 pages for 'cost based data structure'.

Page 1493/3281 | < Previous Page | 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 | Next Page >

Our company has 100,000s+ photos, how to store and browse/find these efficiently?

- by tobefound

We currently store our photos in a structure like this: folder\1\10000 - 19999.JPG|ORF|TIF (10 000 files) folder\2\20000 - 29999.JPG|ORF|TIF (10 000 files) etc... They are stored on 4 different 2TB D-link NASes attached and shared on our office network (\\nas1, \\nas2, and so on...) Problems: 1) When a client (Windows only, Vista and 7) wishes to browse the let's say \\nas1\folder\1\ folder, performance is quite poor. A problem. List takes a long time to generate in explorer window. Even with icons turned off. 2) Initial access to the NAS itself is sometimes slow. Problem. SAN disks too expensive for us. Even with iSCSI interface/switch technology. I've read a lot of tech pages saying that storing 100 000+ files in one single folder shouldn't be a problem. But we don't dare go there now that we experience problems on a 10K level. All input greatly appreciated, /T

Read the article
Allow PHP to write file without 777

- by camerongray

I am setting up a simple website on webspace provided by my university. I do not have database access so I am storing all the data in a flat file. The issue I am experiencing is related to file permissions. I need PHP to be able to read and write the data file but I don't really want to set the file to 777 as anybody else on the system could modify it, they already have read access to everyone's web directories. Does anyone have any ideas on how to accomplish this? Thanks in advance

Read the article
Why does IIS 7 return a 500 when I access an HTML page?

- by Out Into Space

IIS 7 returns a 500 server error when I request an HTML page with this structure: <html> <head> <title>Test Page</title> </head> <body> Some text </body> </html> It works just fine the first time I access it, but subsequent attempts cause the error. If I remove the HTML tags, the error doesn't occur: <body> Some text </body> It seems very odd that the presence of the HTML tag would cause it to blow up. Any ideas?

Read the article
Is it possible to have a cell in table1 "point to" a cell in table2?

- by Lewray

I have a hierarchical structure in a database driven software application. Each row in parentTable 'owns' a number of rows in childTable. If the childTable does not have a value set in columnA then it should return the value specified in the appropriate row of parentTable columnB. Is it possible to implement a pointer or cell reference somehow so that I do not have to copy values from parent to child. (A change in parent could result in a large number of changes in child). If this is not possible, could anyone suggest a different approach?

Read the article
How long does it take in practice to warm up large in-memory databases?

- by Sim

Companies such as Peak Hosting are offering 64 core machines with 512Gb RAM for $2K/month. This is a very interesting choice for in-memory databases such as Memcached/Redis as well as databases whose performance degrades rapidly when the data & indexes don't fit in RAM, such as MongoDB. My main concern with monster machines such as these is the time it takes to warm up an in-memory database. In my experience, theoretical metrics, e.g., that SATA can load 100Mb/sec, fall short of what happens in practice. Even at that rate, 100Mb/sec means that loading up 512Gb RAM machine from SATA disks can take over 1 1/2 hours (!). I am looking for real-world reports of warm-up times for machines with very large memory. Please, share details of the software on the machine, data size, storage configuration, e.g., SATA or SSD, network, hosting/cloud provider, if relevant, etc.

Read the article
Is there a "pattern" or a group that defines *rcs files in *nix environments?

- by Somebody still uses you MS-DOS

I'm starting to use command line a little more, and I see there are a lot of ways to configure some config files in my $HOME. This is good, since you can customize it the way you really like. Unfortunately, for begginners, having too many options is a little confusing. For example, I created .bash_alias for some alias I'm using. I didn't even know this option existed, I'm used to simply edit .bashrc. Do exist a pattern, a "good practice", envisioning flexibility and modularity in terms of rc files structure? Do exist a standardization group for this, or every body just creates it's own configuration setup?

Read the article
Sync two external harddrives?

- by acidzombie24

A little mishap happened earlier today and i am thinking i should have a copy of my external harddrive since 10% of it is very valuable. What is the best solution to keep two external harddrive in sync? i'll probably use one as regular and maybe use the other only to copy data. The easiest way to keep it in sync is to clear one drive and copy the other but 1T of data will take a long time. Whats a good existing app that will keep them in sync? freeware preferred.

Read the article
How to lookup a value in a table with multiple criteria

- by php-b-grader

I have a data sheet with multiple values in multiple columns. I have a qty and a current price which when multiplied out gives me the current revenue (CurRev). I want to use this lookup table to give me the new revenue (NewRev) from the new price but can't figure out how to do multiple ifs in a lookup. What I want is to build a new column that checks the "Product", "Tier" and "Location/State" and gives me the new price from the lookup table (above) and then multiply that by the qty. e.g. Data > Product, Tier, Location, Qty, CurRev, NewRev > Product1, Tier1, VIC, 2, $1000.00, $6000 (2 x $3000) > Product2, Tier3, NSW, 1, $100.00, $200 (1 x $200) > Product1, Tier3, SA, 5, $250.00, $750 (5 x $150) > Product3, Tier1, ACT, 5, $100.00, $500(5 x $100) > Product2, Tier3, QLD, 2, $150.00, $240 (2 x $240) Worst case, if I just get the new rate I can create another column

Read the article
Amazon S3 - Storage Class and Server Side Encryption

- by Steven

Ahhh! I am using Amazon S3 for some low price storage to clear down out SAN. I created the bucket and created a root folder. I set the storage class to standard and server side encryption AES. I started a copy job to move the files, some files copied over and i checked the files: Reduced Redundancy Encryption set to none WTF? So i deleted all files and folders. I manuallyed created the folder structure and again set the storage class and encryption level. I coped some files and bamm, still showing (at a file level as Reduced and no encryption). So my question is this, is it really raid'd and encrypted just not showing it properly (as the root folder is, how can the file not be??) or (b) am i being a huge tool and missing something?

Read the article
Utility to record IO statistics (random/sequential, block sizes, read/write ratio) in Unix

- by Michael Pearson

As part of provisioning our new server (see other SF) I'd like to find out the following: ratio of random to sequential reads & writes amount of data read & written at a time (pref in histogram form) I can already figure out our reads/writes on a per-operation and overall data level using iostat & dstat, but I'd like to know more. For example, I'd like to know that we're mostly random 16kb reads, or a lot of sequential 64kb reads with random writes. We're (currently) on an Ubuntu 10.04 VM. Is there a utility that I can run that will record and present this information for me?

Read the article
Multiple Monitors on One Screen

- by Hulihan Applications

Does anyone know of any software/hardware configuration that will allow you to preview/view the contents multiple monitors on one monitor? Let's pretend: I have two monitors hooked up to one pc, Monitor A and Monitor B. The monitors are not near each other. I'd like to be able to preview/see what's displaying on Monitor B on Monitor A I haven't been able to find much about this, but I imagine it may not currently be possible to access/emulate video output going out of a video port in software. However, wouldn't it be possible to capture display data generated by the OS kernel or data getting passed down to the display adapter driver?

Read the article
"Access denied" to C:\Documents and Settings after removing malware?

- by Rising Star

My Windows 7 PC became infected with the so-called "Malware Protection designed to protect" trojan while I was at work the other day. I managed to kill the process so that the malware is no longer running. The removal instructions specify to delete the following file: c:\documents and settings\all users\application data\defender.exe However, when I click to c:\documents and settings, it says "Access denied". Prior to this malware infection, I've never had any trouble accessing "Documents and Settings" or "Application Data." I read that in Windows 7, c:\documents and settings is a psudonym for c:\users, but I still cannot find the file defender.exe. Suggestions?

Read the article
"net use /delete" question

- by tinmaru

I want to delete a network connection. When I type net use I get this: Microsoft Windows XP [version 5.1.2600] (C) Copyright 1985-2001 Microsoft Corp. C:\Documents and Settings\totonet use État Local Distant Réseau OK M: \192.168.5.138\share Réseau Microsoft Windows OK R: \192.168.2.18\tools Réseau Microsoft Windows OK \192.168.2.43\data Réseau Microsoft Windows La commande s'est terminée correctement. The syntax for deleting a network map is : net use /delete X: if I want to delete a specific connection net use /delete * * if I want to delete all connections. How can I delete the \192.168.2.43\data connection which, as you can see, is not link to any logical letter?

Read the article
Filename Case issue with over WebDav

- by user98365

We are accessing SAMBA shared directory from a Windows Client with WebDav client WebDrive. But we are having the issue that it is showing same contents in both the directories ( data/ & Data/ ) though they are entirely different. I know this is because of Windows Filesystem being case insensitive and Linux being Case Sensitive. is there any solution for this? We had the same issue when viewed through the SAMBA mounted directory but we solved it by editing the SMB.conf as said in the following link Does Samba work well with Windows when case-sensitive names are enabled? Please help to solve this when accessed from the WebDav

Read the article
Sharing a symlinked (`mklink /d`) directory via SMB?

- by Alois Mahdal

I have a Windows 7 amd64 box where one directory is shared: local path is d:\drop\ remote path is \\aloism\drop from SMB point of view, Everyone has Read and Write permission ACLs for the folder are set so that all authenticated users have read and write permissions:NT AUTHORITY\Authenticated Users:(OI)(CI)C (which is inherited to all levels below) Now I create a symbolic link within the structure of the directory: D:\drop>mklink /d tools2 tools symbolic link created for tools2 <<===>> tools The problem is that I can't access this new directory from any of the remote machines (a Windows 7 box and a Windows XP box—both behave the same way): C:\>dir \\aloism\drop\tools2\ Volume in drive \\aloism\drop is droot Volume Serial Number is FA73-1897 Directory of \\aloism\drop\tools2 File Not Found How can I make it work? Possibly also for files?

Read the article
Shortcut with arguments in Debian

- by Duncan

I have a volume on a debian server which contains a large number of images at full resolution in various folders. What I'd like to do is have a separate sort of browse proxy folder which contains lower quality browse copies of these to enable users to access them for viewing over lower speed dial in accounts. I'd ideally like these to be created on the fly using ImageMagick so there isnt the need to store the large number of browse copies full time and worry about keeping them up to date etc The way I'd invisaged this happening is the browse proxy folder containing a duplicate file and folder structure but with symlinks pointing to a script to transform them with the file path as an argument. Except I know this isnt possible with symlinks so am wondering if there's another way of doing this on linux. On windows shortcuts can take arguments and I'm wondering how to do the same on a Linux platform? (or perhaps I'm going about this the wrong way?)

Read the article
Request to server x Reply from server y

- by klaasio

I need some advice from you guys: I'm dealing with a custom loadbalancer/software for which we will use 2 main servers and about 8 slave servers. In short: User sends request to main server, main server will receive and handle the requests, sends a request to a slave server and slave server should send data DIRECTLY to the "user". User - Main server Main server - Slave server Slave server - User The reason for which data should be send directly to the user and not through the main server is because of bandwidth and low budget. Now I have the following idea's: -IPinIP, but that is not possible in Layer7 (so far i know there some expensive routers for that) -IP Spoof, using C/C++ we will make it look like the reply came from main server. But I was thinking, perhaps the reply "slave server - User" could just come from a different IP without causing issues in the firewall from the user or his anti-virus. I don't know so well about "home" firewalls/routers and/or anti-virus software. I guess the user machine wouldn't handle it well?

Read the article
Imap subfolders not shown in list command - perhaps acls misconfiguration

- by mschenk74

My goal is to copy the whole folder structure with all mails from one imap account to another. The tool I am using for this is imapcopy (the java based version from code.google.com since the unix/linux tool packaged with debian doesn't support imaps). Now, there is one problem: The tool only copies the top-level folders and not the nested ones. To narrow down the problem I have downloaded the source code of imapcopy and debugged into the code. There I noticed that the folder.list() (which is mapped to the list "%" imap command) returns an empty list. But when I do a getFolder(<subfoldername>) I can access those subfolders. After reading some documentation about the features of imap I think that the problem might be some misconfigured ACLs which prohibit the listing of those folders but allow to read ad write to them. How should I check this ACLs? which tools do I need for this task?

Read the article
Safely resizing partitions in CentOS 6

- by Fariborz Navidan

I have deployed two VMs on VMware with CentOS 6.3 Net Install. It has automatically created some partitions. It has created two major partition for root and home. root partition has size of 50GB and home 168GB. root partition has 35GB of free space. I want to resize partitions safely without data loose. server is running CPanel and home partition has important user data. I want to reduce root size and increase to home. home partition has only 7GB used. Please advise the safest way

Read the article
Optimal partition setup for Windows 7 on SSD

- by Mike C.

Hello, I'm setting up my system with Windows 7 right now, with knowledge that I am going to be getting a SSD in the future. What optimizations/setup should I do now to make a smoother transition in the future? Should I created two partitions - one for the OS and one for the data? Assuming this is the case, I would be able to easily ghost my OS partition onto the SSD in the future. If so, what should go on the OS drive besides the OS? Program files? If I install games or Visual Studio, should it go on the OS drive or the data drive? I can see the SSD filling up fast if I install all my program files on there. I've seen a few posts where people talk about leaving a portion of the SSD unformatted - is this something I should do? Thanks!

Read the article
What are the pros & cons of these MySQL engines for OLTP -- XtraDB, PBXT, or TokuDB?

- by Continuation

I'm working on a social website with an approximate read/write split of 90/10. Trying to decide on a MySQL engine. The ones I'm interested in are: XtraDB PBXT TokuDB What are the pros and cons of them for my use case? A few specific questions: PBXT uses log-based structure that avoids double-writes. It sounds very elegant, but the benchmark I've seen doesn't show any/much advantages over XtraDB. Do you have any experience with PBXT/XtraDB you can share? TokuDB sounds VERY interesting. But all the benchmarks I've seen are about single-threaded bulk inserts - inserting 100M rows for example. that's not very relevant for OLTP. What about its performance with large number of concurrent threads writing and reading at the same time? Anyone has tried that?

Read the article
Setting 'bookmarks' for command prompt on Windows XP

- by The Communist Duck

I know I can change the command prompt to startup on C:\ rather than F:\Documents And Settings or wherever. But I was wondering if it's possible to set bookmarks or some other command that allows me to switch to locations. For example, my Python projects have a long (about 7 subdirectories) address (think that's the word), and as such it takes a while to cd to them. What I would like to do is something like gotodirectory PythonProjects , and have it cd to where I have specified this, be it C:\WINDOWS or F:\Games\Steam\steamapps\common\some game\some game data\some more game data.

Read the article
What does CONTROL mean in the context of the Certificate

- by Ram

Hi Everyone, I am trying to implement encryption in sql server 2005 through Certificate and Symmetric Key and i came to know that the application user should have the following access in order to Encrypt and Decrypt Data 1) CONTROL permission on Certificate and 2) REFERENCES on the Symmetric Key (Let me know if i am wrong) Now my concern is what does CONTROL mean in the context of Certificate? If my User1 has Control permission on my certificate Cert1 What all can he do, Is there a way to restrict him further, but user1 still be able to Encrypt\Decrypt the data I could not find any good practice doc for certificate and key management so can some one advice the good practice for this Thanks, Ram

Read the article
Which particular file caused "Delayed write failed" error?

- by user35020

I sometimes get this error when resuming from hibernation: Delayed Write Failed: Windows was unable to save all the data for the file G:\$Mft. The data has been lost. This error may be caused by a failure of your computer hardware or network connection. Please try to save this file elsewhere. I know this is caused because the hard drive (G:, an external USB drive) was (a) plugged in when I hibernated and wasn't ready at wake-up, or (b) I simply forgot to plug it when resuming from hibernation. My question is: is there any way to see which particular file/folder/etc failed to be written? The hard drive functions correctly before and after, so there seems to be no permanent damage. Is there a detailed log someplace or a utility? I've searched but found nothing. Thanks for any help!

Read the article
Can i use a Windows 2008 r2 Cluster for file redundancy

- by JERiv

I'm researching a sever clustering architecture as a redundancy and backup solution for a client, and something that isn't made clear is whether or not i can use server clustering to replace a file server with backup solution. Forgive my Elementary understanding of server clustering but supposing: 2 Sites (NJ, CA) Identical Servers at each site setup as a Remote Site Cluster nodes with Windows Enterprise server 2008 r2 Services: File, Terminal, AD, and maybe DNS Will the following will be true: Files (including data drives) will be synced between the two servers eliminating the need for third party backup/mirroring software to sync/backup files. Also supposing i use roaming profiles w/ folder redirection; How will client computer in the WAN access their data through the cluster (i.e. will they automatically choose the best route)

Read the article

< Previous Page | 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 | Next Page >