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  • Charting library for Blackberry devices (native)

    - by dozerbull
    Does anyone know of a library to display charts and graphs natively on blackberry devices ? There are quite a few javascript (Flot...) charting libraries but I'd rather use something similar to Coreplot on iPhone if it is possible. I didn't find anything on top of SVG (JSR 226) or open GL ES (JSR 239) so any help is appreciated. Ideally, I'd like to be able to: draw Bar Charts (both vertical and horizontal) draw Stacked bar charts draw Pie charts drill-down one level on each bar or pie section to get corresponding information

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  • Creating Emulated iSCSI Target in a Lab/Testing Environment using Windows Server 2008 R2

    - by Brian McCleary
    We have a single server running Windows Server 2008 with Hyper-V installed running 5 virtual machines. I have purchased a second DELL R805 Server so that we can create a fail-over cluster to our current R805 that is currently in production. Right now, our R805 connects via iSCSI to a MD3000i iSCSI SAN. Before we try to roll out the second server and clustering to our production environment, I want to be able to test and "play with" the clustering features in our lab before rolling it out. The problem is that I don't want to spend a couple thousand dollars on another iSCSI SAN server just for testing. I already have two servers in my lab that are installed with Windows Server 2008 R2 64bit (one is the R805 and another spare desktop that was laying around) and with the Hyper-V roll enabled that should be ready to test with, but I don't have an iSCSI target to use as the Cluster Shared Volume. Is there anyway to install, either on a Hyper-V image or on a external spare computer that we have some sort of emulated iSCSI target? In our lab, we obviously don't need a real SAN, just something that we can test out how to setup the clustering properly outside of our production environment. Any advise is appreciated. FYI - I have read Jose Barret's blog on WUDSS at http://blogs.technet.com/josebda/archive/2008/01/07/installing-the-evaluation-version-of-wudss-2003-refresh-and-the-microsoft-iscsi-software-target-version-3-1-on-a-vm.aspx, but it seems awfully complex. I'm hoping for an easier solution.

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  • f12 and ctrl + f5 not working correctly

    - by ComatoseDuck
    When I came back to my work computer after being away for a week I found out when I try to clear the cache and refresh the page via ctrl + f5 (or just f5) I get the prompt "Type the Internet address of a document, and Internet Explorer will open it for you" with a drop down list in IE. When I try f5 in Chrome and FF it opens the "Open file" dialog box. When I try to f12 for Dev tools in IE, Chrome & FF it opens up the print dialog box. Why is this happening and what can I do to revert it back to the way it was?

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  • Is there any way to search within OneNote 2007 attachments

    - by jtolle
    I'm starting to use OneNote (2007) more. One thing I'd like to do is take notes on papers I have read. That is, I attach, say, a PDF file, and then type in some notes about it. Sometimes I do other stuff like copy some key text or figures from the paper, so OneNote is great for this because all that plus my own notes plus the file itself can all be in one place. However, the OneNote search doesn't seem to be able to search within said PDF files. Windows search finds things, but just in the OneNote cache, not the actual Onenote .one files. (Presumably that will only work for recently accessed stuff, and in any case doesn't take me to my actual notes.) Is there a way to do what I want? If not, does anyone have a suggestion (or link) as to how to best use OneNote to store (and later search for!) this kind of content and notes?

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  • Why would the value of the Session object go away?

    - by Michael
    In ASP.NET/VB.NET 2005 I've created a small web app with two forms. In Default there is a button and a text box and a link. When you press the button whatever is in the text box is put into the Session. Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click System.Web.HttpContext.Current.Session("mykey") = Me.TextBox1.Text End Sub When you press the link it's NavigateURL property is "~/Retrieve.aspx" On the Retrieve page it pulls the information out of the Session (that is, whatever you typed in the text box). Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load Dim myValue As String = CType(System.Web.HttpContext.Current.Session("mykey"), String) Response.Write(myValue) End Sub Now it works on my machine and when deployed to the production web-site server if I run the browser remotely there it works fine - What you type on the first page appears on the second page. But when I run it from my machine to the production web server the second page is always blank. Why? It doesnt seem like a timeout issue - brand new web.config taking the defaults. Any pointers would be greatly appreciated! Thanks!

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  • Incorrect syntax near ','.

    - by jeffreyshek
    I get the following error from the SQL Script I am trying to run: Msg 102, Level 15, State 1, Line 10 Incorrect syntax near ','. This is the SQL script: IF NOT EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].HDDB_DataSource]') AND OBJECTPROPERTY(id, N'IsUserTable') = 1) BEGIN CREATE TABLE [dbo].[HDDB_DataSource]( [ID] [int] IDENTITY(1,1) NOT NULL, [Name] [nvarchar](255) NOT NULL, [Type] [nvarchar](50) NOT NULL, [XmlFileName] [nvarchar](255) NULL, [ConnectionString] [nvarchar](255) NULL), CONSTRAINT [PK_DataSource] PRIMARY KEY CLUSTERED ( [ID] ASC ) ON [PRIMARY] ) ON [PRIMARY] END I am using SQL Server 2005 if that helps. Jeff

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  • Rails - eager load the number of associated records, but not the record themselves.

    - by Max Williams
    I have a page that's taking ages to render out. Half of the time (3 seconds) is spent on a .find call which has a bunch of eager-loaded associations. All i actually need is the number of associated records in each case, to display in a table: i don't need the actual records themselves. Is there a way to just eager load the count? Here's a simplified example: @subjects = Subject.find(:all, :include => [:questions]) In my table, for each row (ie each subject) i just show the values of the subject fields and the number of associated questions for each subject. Can i optimise the above find call to suit these requirements? I thought about using a group field but my full call has a few different associations included, with some second-order associations, so i don't think group by will work. @subjects = Subject.find(:all, :include => [{:questions => :tags}, {:quizzes => :tags}], :order => "subjects.name") :tags in this case is a second-order association, via taggings. Here's my associations in case it's not clear what's going on. Subject has_many :questions has_many :quizzes Question belongs_to :subject has_many :taggings has_many :tags, :through => :taggings Quiz belongs_to :subject has_many :taggings has_many :tags, :through => :taggings Grateful for any advice - max

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  • Adding ObsoleteAttribute to (or otherwise greylisting) Types not under my control?

    - by Michael Stum
    Is there a way to somehow mark Types I do not control as Obsolete? Basically I would like to add ObsoleteAttribute to types I do not want to use in my .net Project (i.e., SerializableAttribute) I believe I can do something like that with FxCop, but ideally I would like to have the compiler already generate warnings for "greylisted" Types? This should be on a Per-Project level, but sadly "Extension Attributes" don't exist, and adding them at Runtime is too late for ObsoleteAttribute...

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  • Android - Two different programs at the same time in an emulator

    - by Léa Massiot
    I'm new to Android development. My OS is WinXP. I'm trying to install two different applications on an Android Device Emulator in command line. I have two Android projects "ap1" and "ap2". In the "ap1" project directory, I ran "ant debug". I got an "ap1.apk" executable. In the "ap2" project directory, I ran "ant debug". I got an "ap2.apk" executable. I created an Android Virtual Device: cmd_line android create avd -n avd1 -t 1 --abi x86 I launched the emulator: cmd_line emulator -avd avd1 -verbose The "adb devices" command returns: List of devices attached emulator-5554 device I installed the first program on the emulator: cmd_line adb -s emulator-5554 install "ap1.apk" I ran the program: cmd_line adb shell am start -a android.intent.action.MAIN -n my.pkg.android/.Activity1 = It worked. I installed the second program on the emulator: cmd_line adb -s emulator-5554 install "ap2.apk" I ran the program: cmd_line adb shell am start -a android.intent.action.MAIN -n my.pkg2.android/.AnotherActivity1 = It worked. All this works except that the second executable "replaced" of the first one. If I try to run the first executable, I get an error: cmd_line adb shell am start -a android.intent.action.MAIN -n my.pkg.android/.Activity1 Starting: Intent { act=android.intent.action.MAIN cmp=my.pkg.android/.Activity1 } Error type 3 Error: Activity class {my.pkg.android/my.pkg.android.Activity1} does not exist. It looks like I can't have the two apps at the same time in the emulator. What do you think? What do I have to do to have the two apps available (at the same time) in the emulator? Thank you for helping. Best regards.

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  • Detecting I/O errors in a NON BLOCKING SOCKET

    - by ripunjay-tripathi-gmail-com
    I am writing a client - server system in which I used NON-BLOCKING sockets. My problem is to detect error { while performing send() or write() } that may occur while data transfer. Example lets say, while the data is being transferred the peer crashes. Another case there is some network problem, something like wire unplugged etc. As of now, I am using a high level ACK, that peer sends after receiving the complete data. Ripunjay Tripathi

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  • How do I set libavcodec to use 4:2:2 chroma when encoding MPEG-2 4:2:2 profile?

    - by Mike Pollitt
    I have a project using libavcodec (ffmpeg). I'm using it to encode MPEG-2 video at 4:2:2 Profile, Main Level. I have the pixel format PIX_FMT_YUV422P selected in the AVCodecContext, however the video output I'm getting has all the colours wrong, and looks to me like the encoder is incorrectly reading the buffers as though it thinks it is 4:2:0 chroma rather than 4:2:2. Here's my codec setup: // // AVFormatContext* _avFormatContext previously defined as mpeg2video // // // Set up the video stream for output // AVVideoStream* _avVideoStream = av_new_stream(_avFormatContext, 0); if (!_avVideoStream) { err = ccErrWFFFmpegUnableToAllocateStream; goto bail; } _avCodecContext = _avVideoStream->codec; _avCodecContext->codec_id = CODEC_ID_MPEG2VIDEO; _avCodecContext->codec_type = CODEC_TYPE_VIDEO; // // Set up required parameters // _avCodecContext->rc_max_rate = _avCodecContext->rc_min_rate = _avCodecContext->bit_rate = src->_avCodecContext->bit_rate; _avCodecContext->flags = CODEC_FLAG_INTERLACED_DCT; _avCodecContext->flags2 = CODEC_FLAG2_INTRA_VLC | CODEC_FLAG2_NON_LINEAR_QUANT; _avCodecContext->qmin = 1; _avCodecContext->qmax = 1; _avCodecContext->rc_buffer_size = _avCodecContext->rc_initial_buffer_occupancy = 2000000; _avCodecContext->rc_buffer_aggressivity = 0.25; _avCodecContext->profile = 0; _avCodecContext->level = 5; _avCodecContext->width = f->GetWidth(); // f is a private Frame class with width, height properties etc. _avCodecContext->height = f->GetHeight(); _avCodecContext->time_base.den = 25; _avCodecContext->time_base.num = 1; _avCodecContext->gop_size = 12; _avCodecContext->max_b_frames = 2; _avCodecContext->pix_fmt = PIX_FMT_YUV422P; if (_avFormatContext->oformat->flags & AVFMT_GLOBALHEADER) { _avCodecContext->flags |= CODEC_FLAG_GLOBAL_HEADER; } if (av_set_parameters(_avFormatContext, NULL) < 0) { err = ccErrWFFFmpegUnableToSetParameters; goto bail; } // // Set up video codec for encoding // AVCodec* _avCodec = avcodec_find_encoder(_avCodecContext->codec_id); if (!_avCodec) { err = ccErrWFFFmpegUnableToFindCodecForOutput; goto bail; } if (avcodec_open(_avCodecContext, _avCodec) < 0) { err = ccErrWFFFmpegUnableToOpenCodecForOutput; goto bail; } A screengrab of the resulting video frame can be seen at http://ftp.limeboy.com/images/screen_grab.png (the input was standard colour bars). I've checked by outputting debug frames to TGA format at various points in the process, and I can confirm that it is all fine and dandy up until the point that libavcodec encodes the frame. Any assistance most appreciated! Cheers, Mike.

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  • Password hashing, salt and storage of hashed values

    - by Jonathan Leffler
    Suppose you were at liberty to decide how hashed passwords were to be stored in a DBMS. Are there obvious weaknesses in a scheme like this one? To create the hash value stored in the DBMS, take: A value that is unique to the DBMS server instance as part of the salt, And the username as a second part of the salt, And create the concatenation of the salt with the actual password, And hash the whole string using the SHA-256 algorithm, And store the result in the DBMS. This would mean that anyone wanting to come up with a collision should have to do the work separately for each user name and each DBMS server instance separately. I'd plan to keep the actual hash mechanism somewhat flexible to allow for the use of the new NIST standard hash algorithm (SHA-3) that is still being worked on. The 'value that is unique to the DBMS server instance' need not be secret - though it wouldn't be divulged casually. The intention is to ensure that if someone uses the same password in different DBMS server instances, the recorded hashes would be different. Likewise, the user name would not be secret - just the password proper. Would there be any advantage to having the password first and the user name and 'unique value' second, or any other permutation of the three sources of data? Or what about interleaving the strings? Do I need to add (and record) a random salt value (per password) as well as the information above? (Advantage: the user can re-use a password and still, probably, get a different hash recorded in the database. Disadvantage: the salt has to be recorded. I suspect the advantage considerably outweighs the disadvantage.) There are quite a lot of related SO questions - this list is unlikely to be comprehensive: Encrypting/Hashing plain text passwords in database Secure hash and salt for PHP passwords The necessity of hiding the salt for a hash Clients-side MD5 hash with time salt Simple password encryption Salt generation and Open Source software I think that the answers to these questions support my algorithm (though if you simply use a random salt, then the 'unique value per server' and username components are less important).

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  • Old fashioned html onclick return false doesnt in IE work when jquery script included

    - by user292662
    Ok, so im quite new to jquery but found this bizzar problem just now, If we ignore jquery for a second and consider this scenario, if i have two links like below both with an href and both with and onclick event. The first link will not follow the href because the onclick returns false, and the second link will because the onclick returns true. <a href="/page.html" onclick="return false;">Dont follow</a> <a href="/page.html" onclick="return false;">Follow</a> This works just hunky dory in every browser as it should, the thing is, as soon as i include the jQuery script on the page this stops working in all versions of IE which then always follows the href whether the onclick returns false or not. (it continues to work fine in other browsers) Now if i add an event using jquery and call .preventDefault() on the event object instead of doing it the old fashioned way this behaves correctly, and you may say, well just do that then? But i have a site with thousands of lines of code and i am adding jquery support, i dont want to run the risk that i might miss an already defined html onclick="" and break the website. I cant see why jQuery should prevent perfectly normal javascript concepts from working, so is this a jQuery bug or am I missing something?

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  • iPhone xcode - Activity Indicator with tab bar controller and multi table view controllers

    - by Frames84
    I've looked for a tutorial and can't seem to find one for a activity indicator in a table view nav bar. in my mainWindow.xib I have a Tab Bar Controller with 4 Tabs controllers each containing a table view. each load JSON feeds using the framework hosted at Google. In one of my View Controller I can add an activity indicator to the nav bar by using: UIActivityIndicatorView *activityIndcator = [[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(0,0,20,20)]; [activityIndcator startAnimating]; UIBarButtonItem *activityItem = [[UIBarButtonItem alloc] initWithCustomView:activityIndcator]; self.navigationItem.rightBarButtonItem = activityItem; however and can turn it off by using: self.navigationItem.rightBarButtonItem.enabled = FALSE; But if i place this in my viewDidLoad event it shows all the time. I only want it to show when I select a row in my table view. so I added it at the top of didSelectRowAtIndexPath and the stop line after I load a feed. it shows but takes a second or two and only shows for about half a second. is the an event that firers before the didSelectRowAtIndexPath event a type of loading event? if not what is the standard menthord for implementing such functionality?

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  • Controlling the print options of a pdf

    - by John Nolan
    I am producing a number of PDFs using either SSRS or using an HTML to PDF component. What I want to do for each document is to set the first page to print to tray 1 and subsequent pages. Is there anyway to do this? System.Drawing.Printing and System.Printing seem like good candidates but they don't seem to be useful for PDFs (i may be wrong). The Adobe sdk doesn't at first glance seem to have that level of granularity either.

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  • Writing user stories for internal technical tasks

    - by John Nolan
    I am attempting to manage my projects a little better so I am looking at attempting to apply some of (eventually all) the features of scrum. Looking at user stories specifically the high level format seems to be: As a User I can Feature Description or Artifact is Doing Something How would I write "Upgrade the Database"? Is it simply Upgrade the Database? I think I am being thrown off as there is no specific actor/customer and that the customer is the IT department.

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  • Conventions for modelling c programs.

    - by Hassan Syed
    I'm working with a source base written almost entirely in straight-c (nginx). It does, however, make use of rich high level programming techniques such as compile-time metaprogramming, and OOP - including run-time dispatch. I want to draw ER diagrams, UML class diagrams and UML sequence diagrams. However to have a clean mapping between the two, consistent conventions must be applied. So, I am hopping someone has some references to material that establishes or applies such conventions to similar style c-code.

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  • How do I recover from an unchecked exception?

    - by erickson
    Unchecked exceptions are alright if you want to handle every failure the same way, for example by logging it and skipping to the next request, displaying a message to the user and handling the next event, etc. If this is my use case, all I have to do is catch some general exception type at a high level in my system, and handle everything the same way. But I want to recover from specific problems, and I'm not sure the best way to approach it with unchecked exceptions. Here is a concrete example. Suppose I have a web application, built using Struts2 and Hibernate. If an exception bubbles up to my "action", I log it, and display a pretty apology to the user. But one of the functions of my web application is creating new user accounts, that require a unique user name. If a user picks a name that already exists, Hibernate throws an org.hibernate.exception.ConstraintViolationException (an unchecked exception) down in the guts of my system. I'd really like to recover from this particular problem by asking the user to choose another user name, rather than giving them the same "we logged your problem but for now you're hosed" message. Here are a few points to consider: There a lot of people creating accounts simultaneously. I don't want to lock the whole user table between a "SELECT" to see if the name exists and an "INSERT" if it doesn't. In the case of relational databases, there might be some tricks to work around this, but what I'm really interested in is the general case where pre-checking for an exception won't work because of a fundamental race condition. Same thing could apply to looking for a file on the file system, etc. Given my CTO's propensity for drive-by management induced by reading technology columns in "Inc.", I need a layer of indirection around the persistence mechanism so that I can throw out Hibernate and use Kodo, or whatever, without changing anything except the lowest layer of persistence code. As a matter of fact, there are several such layers of abstraction in my system. How can I prevent them from leaking in spite of unchecked exceptions? One of the declaimed weaknesses of checked exceptions is having to "handle" them in every call on the stack—either by declaring that a calling method throws them, or by catching them and handling them. Handling them often means wrapping them in another checked exception of a type appropriate to the level of abstraction. So, for example, in checked-exception land, a file-system–based implementation of my UserRegistry might catch IOException, while a database implementation would catch SQLException, but both would throw a UserNotFoundException that hides the underlying implementation. How do I take advantage of unchecked exceptions, sparing myself of the burden of this wrapping at each layer, without leaking implementation details?

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  • Samba as a PDC and offline authentication

    - by Aimé Barteaux
    Say I have a Windows laptop which has been connected to a domain. The domain has a Samba server as a PDC. Now say that I move the laptop outside of the network (the network is completely inaccessible). Will I be able to logon into accounts I have accessed before on the laptop (through GINA)? Update: Looking at the smb.comf documentation I noticed the setting winbind offline logon: This parameter is designed to control whether Winbind should allow to login with the pam_winbind module using Cached Credentials. If enabled, winbindd will store user credentials from successful logins encrypted in a local cache.. To me it looks like this solves the issue but can anyone else confirm it and/or point out if any additional values need to be set?

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  • How to Edit Permission on "Create"? SharePoint

    - by DanSogaard
    When you go to Lists, and Create. I'd like to show the "Custom Lists" column only to specific group. I don't want the users to be able to create Web Pages, Document Libs .. etc But I'm not able to see how, I tried to create a custom group and edit permission level, but I cant find where exactly. does enabling "Create" to specific group opens all settings inside that you can't eliminate certain settings from showing to this group?.

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  • Increment part of a string in Ruby

    - by Rik
    I have a method in a Ruby script that is attempting to rename files before they are saved. It looks like this: def increment (path) if path[-3,2] == "_#" print " Incremented file with that name already exists, renaming\n" count = path[-1].chr.to_i + 1 return path.chop! << count.to_s else print " A file with that name already exists, renaming\n" return path << "_#1" end end Say you have 3 files with the same name being saved to a directory, we'll say the file is called example.mp3. The idea is that the first will be saved as example.mp3 (since it won't be caught by if File.exists?("#{file_path}.mp3") elsewhere in the script), the second will be saved as example_#1.mp3 (since it is caught by the else part of the above method) and the third as example_#2.mp3 (since it is caught by the if part of the above method). The problem I have is twofold. 1) if path[-3,2] == "_#" won't work for files with an integer of more than one digit (example_#11.mp3 for example) since the character placement will be wrong (you'd need it to be path[-4,2] but then that doesn't cope with 3 digit numbers etc). 2) I'm never reaching problem 1) since the method doesn't reliably catch file names. At the moment it will rename the first to example_#1.mp3 but the second gets renamed to the same thing (causing it to overwrite the previously saved file). This is possibly too vague for Stack Overflow but I can't find anything that addresses the issue of incrementing a certain part of a string. Thanks in advance!

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  • In Nginx, can I handle both a location:url or a content-type: text/html response from memcached?

    - by Sean Foo
    I'm setting up an nginx - apache reverse proxy where nginx handles the static files and apache the dynamic. I have a search engine and depending on search parameter I either directly forward the user to the page they are looking for or provide a set of search results. I cache these results in memcached as key:/search.cgi?q=foo value: LOCATION:http://www.example.com/foo.html and key:/search.cgi?q=bar value: CONTENT-TYPE: text/html <html> .... .... </html> I can pull the "Content-type...." values out of memcached using nginx and send them to the user, but I can't quite figure out how to handle a returned value like "Location..." Can I?

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  • jQuery .each() function. Resetting the index?

    - by Michael
    Hi there, I have multiple lists with the same class. I'd like to loop each list and its LI's and prepend the current number before each. The current code I have is: $jQuery(".numberList li").each(function(i) { var index = i + 1; $jQuery(this).prepend("<span>" + index + "</span>"); }); The problem is, is that the index doesn't restart back at 0 for each list it goes through, it just keeps going up. For example, the output I get now is: First list 1. item 2. item 3. item Second list 4. item 5. item 6. item Second list should start at 1 again by having the index back at 0. Could someone point out where I'm going wrong? I'm not a jQuery expert or anything...clearly :) Many thanks, Michael.

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  • static index.html file nginx

    - by Guntis
    We are using nginx with php-fpm. We plan to make first page static (generate html file). if we have 100 concurrent connections, how we can handle file regeneration? basically we need generate new file index_new.html, then delete index.html, and then move index_new.html to index.html. What happens when index.html file was deleted? User gets 404 error? Or nginx handles file from OS cache? One idea is to tell nginx, that 404 error is index_new.html and then not to move index_new to index, but copy. But i don't like idea about 404 error. Thanks.

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