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  • How to replicate data with memcache

    - by Industrial
    Hi everyone, I am trying to find good resources on best practices to data replication across memcache servers. What I want to accomplish is that if one of my servers in my pool goes down, the next server in line already has the info set. I have found "repcached" but since I run a WIN32 test environment, I have been unable to install it. So what's our alternatives on how to replicate data between servers? Thanks,

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  • Is it possible to get a graphical representation of gprof results?

    - by Werner
    Hi, I am interested in getting the profiling of some number crunching program. I compiled it with -g and -pg options and linked it and got it gmon.out. After reading the info (plain text) it looks a bit ugly. I wonder if there are some open source tools for getting a graphical representation of the 10 functions where the program spends the most of the time as well as a flux diagram. Thanks

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  • is this class thread safe?

    - by flash
    consider this class,with no instance variables and only methods which are non-synchronous can we infer from this info that this class in Thread-safe? public class test{ public void test1{ // do something } public void test2{ // do something } public void test3{ // do something } }

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  • [boost::filesystem] performance: is it better to read all files once, or use b::fs functions over an

    - by rubenvb
    I'm conflicted between a "read once, use memory+pointers to files" and a "read when necessary" approach. The latter is of course much easier (no additional classes needed to store the whole dir structure), but IMO it is slower? A little clarification: I'm writing a simple build system, that read a project file, checks if all files are present, and runs some compile steps. The file tree is static, so the first option doesn't need to be very dynamic and only needs to be built once every time the program is run. Thanks

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  • Notepad++ tabs to spaces

    - by Helephant
    Does anyone know how to convert tabs to spaces in Notepad++? I found a webpage that suggests it's possible (http://www.texteditors.info/notepad-replacements-compared.php) but I couldn't find any information about how to do it. I like to be able to do that because some web forms don't respect code with tabs in it.

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  • Is it expensive to hold on to PreparedStatements? (Java & JDBC)

    - by sbook
    I'm trying to figure out if it's efficient for me to cache all of my statements when I create my database connection or if I should only create those that are most used and create the others if/when they're needed.. It seems foolish to create all of the statements in all of the client threads. Any feedback would be greatly appreciated.

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  • Simple check authentication decorator in Python + Pylons

    - by ensnare
    I'd like to write a simple decorator that I can put above functions in my controller to check authentication and re-direct to the login page if the current user is not authenticated. What is the best way to do this? Where should the decorator go? How should I pass cookie info to the decorator? Sample code is greatly appreciated. Thank you!

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  • Globbing in `git checkout`

    - by yar
    Is there any way to implement globbing in git checkout? It would be great to be able to use git checkout re* or even to have tab completion in the shell. I'm using zsh, but an answer that is shell independent would be great. Note: I realize that this is kind of a pipe dream, so... if I needed to implement this myself, must it be done in the shell language itself, or could it be done in, say, Ruby?

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  • can you help me with my problem please ???

    - by eyad
    how i can make http request to my page i dont know that you understand me or not but i want to make a site like [www.break-rules.info][1] how i can make all links and forms actions redirect back to my script iam using php **can you help me please**

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  • SQL and/or LINQ query for determining daily increases in viewers

    - by Gio
    We're montioring usage of a certain resources by monitoring users logins (We can see user logins growing daily). After filtering out repeat inter day logins for users, we'd like to track the # of users using the service each day, and then using that info to determine overall incremental gains for each calendar day. Our table is pretty simple: class ServiceLogin { String login; DateTime loginTime; }

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  • Is nginx / node.js / postgres a very scalable architecture?

    - by Luc
    I have an app running with: one instance of nginx as the frontend (serving static file) a cluster of node.js application for the backend (using cluster and expressjs modules) one instance of Postgres as the DB Is this architecture sufficient if the application needs scalability (this is only for HTTP / REST requests) for: 500 request per seconds (each requests only fetches data from the DB, those data could be several ko, and with no big computation needed after the fetch). 20000 users connected at the same time Where could be the bottlenecks ?

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  • How to get parallel behavior in Java Script ?

    - by Biswanath
    More or less I want to execute two functions in parallel. One way as I see is doing through SetTimeOut function. I have not completely gone through the ReactiveExentension, although it looks promising but may be overkill for my needs. Is there any framework which supports parallelism ? My use case is trivial, but I would like to know if anybody heavily needed parallelism in Java Script ? Thanks, Biswanath.

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  • Functional Programming Equivalent of Design Patterns Book?

    - by JasonFruit
    Is there a functional-programming equivalent to the Gang of Four Design Patterns book? That is, is there a book that explains and gives examples of how commonly-needed code structures are implemented functionally? I think seeing that would give me a better idea of how to go about using in practice the functional concepts whose theory I understand.

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  • Maven: Re-use a POM file in every project.

    - by Zombies
    My goal is pretty simple actually but since there are multiple (and seemingly complex ways to do this) I wonder what I need to do... So I have certain runtime libraries (ADF libraries in particular) that are needed to be added to every project. This parent pom file will just have JAR dependencies in it. How can I use this pom file from a child pom file?

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  • SQL Exception error??

    - by Kyle Sevenoaks
    I just came into work and found this where our site should be: SQLException ERROR: connect failed [Native Error: Host 'linux7.fastname.no' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'] [User Info: Array] What does it mean? www.euroworker.no

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  • Sorting an array of structs

    - by keruilin
    I have an array of structs called leaders. The struct class looks like this, for contextual info: class Leader < Struct.new(:rank, :user); end Two questions: How do I sort the array of structs by rank? How do I sort the array of structs by rank and by user.created_at?

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  • Send device token with HTTP POST

    - by tech74
    Hi, we need to send an http post from an iphone device to our server with some info which the device token (APNS) which we want to store. How on the server do you read the HTTP post and store what is in it? We just have a standard ISP hosted server which currently just has a website. Thanks

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