My current development project has two aspects to it. First, there is a public website where external users can submit and update information for various purposes. This information is then saved to a local SQL Server at the colo facility. The second aspect is an internal application which employees use to manage those same records (conc...
Disclaimer: This is not actually a programming question, but I feel the audience on stackoverflow is more likely to have an answer than most question/answer sites out there. Please forgive me, Joel, for stealing your question. Joel asked this question on a podcast a while back but I don't think it ever got resolved. I'm in the same si...
Everyone remembers google browser sync right? I thought it was great. Unfortunately Google decided not to upgrade the service to Firefox 3.0. Mozilla is developing a replacement for google browser sync which will be a part of the Weave project. I have tried using Weave and found it to be very very slow or totally inoperable. Granted they...
I'm developing a library alongside several projects that use it, and I've found myself frequently modifying the library at the same time as a project (e.g., adding a function to the library and immediately using it in the project). As a result, the project would no longer compile with previous versions of the library. So if I need to ro...
I need to keep the files & folders on two Windows-based, non-domain machines synchronized across a public network. I was thinking rsync over SSH - but I was wondering if there is a simpler solution? Any possibility of using the sync framework over SFTP/SCP/SSH? Or I'm open to better ideas? ...
This isn't much of a programming question, but I'm sure I'm not the only person here who has this issue. Currently I have two machines with Outlook 2007. They both sync e-mail from Google Apps. One of the machines publishes my calendar to a secure server, which my other machine is subscribed to. The problem with this setup is that I hav...
We are working on designing an application that is typically OLTP (think: purchasing system). However, this one in particular has the need that some users will be offline, so they need to be able to download the DB to their machine, work on it, and then sync back once they're on the LAN. I would like to note that I know this has been do...
I'm on a little quest of merging the structure of two MySql databases. Is there a tool for this with the might of Red-Gate's SQL Compare? Are there any free alternatives? ...
I have two threads, one updating an int and one reading it. This value is a statistic where the order of the read and write is irrelevant. My question is, do I need to synchronize access to this multi-byte value anyway? Or, put another way, can part of the write be complete and get interrupted, and then the read happen. For example, ...
Hi, I would like to ask some advices or experiences from architecture or technology for building real-time system. Before I have some experience on developing "Queuing Management System", I have done by sending TcpServer and TcpClient message to all operators when a operator changed the queue number. But I think this strategy a lot comp...
From what I understand, the crystals on PC's are notorious for clock skew. If clocks are always skewing, what is the best way to synchronize clocks between machines with millisecond accuracy and precision? From what I've found, NTP and PTP are possible solutions, but I was wondering if anybody had any experience on stackoverflow.com! I ...
Our company has a policy imposing the requirement of keeping source code in a SourceSafe repository. I've tried hard to persuade the management to migrate to SVN with no success (whcih is an another issue, anyway). As I and few of my colleagues use SVN repository placed on my computer (via Apache), I made a PowerShell script which does...
I'm still a little unclear and when to wrap a lock around some code. My general rule-of-thumb is to wrap an operation in a lock when it reads or writes to a static variable. But when a static variable is ONLY read (e.g. it's a readonly that is set during type initialization), accessing it doesn't need to be wrapped in a lock statement, ...
I noticed that you can call Queue.Synchronize to get a thread-safe queue object, but the same method isn't available on Queue<T>. Does anyone know why? Seems kind of weird. ...
Most of the implementations I find require a hardware instruction to do this. However I strongly doubt this is required (if it is, I can't figure out why...) ...
I have an application where 2 threads are running... Is there any certanty that when I change a global variable from one thread, the other will notice this change? I don't have any syncronization or Mutual exclusion system in place... but should this code work all the time (imagine a global bool named dataUpdated): Thread 1: while(1) ...
I'm working on a C#/ASP.NET web application, and I have a number of situations where I need to do locking. Ideally, I want the locks to act independently, since they have nothing to do with each other. I've been considering [MethodImpl(MethodImplOptions.Synchronized)] and a few ways of using lock(), but I have a few questions/concerns....
We started some overseas merge replication 1 year ago and everything is going fine till now. My problem is that we have now so much data in our system that any crash on one of the subscriber's servers will be a disaster: reinitialising a subscription the standard way will take days (our connexions are definitely slow, but already very ve...
I have a webapp that I am in the middle of doing some load/performance testing on, particularily on a feature where we expect a few hundred users to be accessing the same page and hitting refresh about every 10 seconds on this page. One area of improvement that we found we could make with this function was to cache the responses from the...
Has anyone out there used TFS's API to synchronize different types of repositories? I have a SVN repo that I want to sync with a TFS repo. More accurately, I just want to take everything latest from SVN occasionally (nightly) and dump it out to TFS as the latest version. Any advice? ...