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Questions tagged [reliability]

Reliability is the ability of a system or component to perform its required functions under stated conditions for a specified period of time.

Reliability is the ability of a system or component to perform its required functions under stated conditions for a specified period of time.

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How to generate random events based on a given probability?

I need to generate a certain number of random failures throughout the lifetime of a certain component. I possess the failure rate of the component, i.e. if I know that it fails for instance 6 times in 720 hours of work, then its failure rate is…
Giovanni Rinaldi
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Reliability Android when connection is off

I'm developing an App where I store my data in a DB online using HTTP POSTO and GET. I need to implement some reliability to my software, so if the user presses the button, and there is no connection, the data should be stored in something (file?…
xcsob
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Is AsParallel().ForAll reliable

I have query with AsParallel().ForAll is sometimes skipping some records and sometimes returning null records in my case. I am not sure for this is the exact reason for this. Is the mechanism for parellal for in .Net reliable? Edit: Sample code var…
Naresh Goradara
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Simpy subway simulation: how to fix interrupt failure of class train while queueing for a resource?

I am working on a train simulation in simpy and have had success so far with a single train entity following the code below. The trains processes are sections followed by platforms. Each section and platform has a resource of 1 to ensure that only…
Harry Munro
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Performing application reliability using iis 6/7

I have web-services applications, running on Windows Server 2003. These hosts (each of them on separate appPool) contains multiple operations (consulting services). Does exist an approach to perform reliability on these hosts, in terms of appPools…
Erup
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Best way to save incomming REST calls to reliable handle system failures

I am implementing a RESTfull web service with Java, which should compute every call in a reliable way, even if the systems crashes. After a potential failure, the system should be able to find all jobs which were open at the time the system crashed…
Hans Sperker
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Are CER needed to merely protect shared managed states within an AppDomain?

I do have an operation that must be reliably performed as a whole or not be performed at all. The goal is only to preserve the consistency of some in-memory managed shared states. Those states are contained within an application domain. They are…
Victor Victis
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TCP Reliability testing

I am working on a project where I need to test whether TCP reliability is in action or not. For example I want to check something like this 1)I have a client which makes a request for a resource say using HTTP 2)Initially all the TCP 3 Way Hand…
Satwik Krishna
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Windows server 2008 uptime

I am deploying a critical care client-server application on Windows server 2008. We have a requirement saying the server must be running without restart for atleast 6 months. Although we ensure this reliability on the software which we are…
Mahesh
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How can I deal with the general case of a "silent" database transaction success

In this related question, I asked how I could make sure that I don't try to insert the same data into a database twice. However, I am now concerned about the more general case. Specifically, I am concerned about any database which I access…
Michael
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Efficiently extracting pairwise correlations in R

This seems like it should be straightforward but I have a data frame and need to extract the correlation of the scores for each possible pair of id across trial (in other words, compare score of id 1 on trial 10 to id 2 on trial 10, id 1 on trial 10…
amurphy
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Watchdog built into the same process as the program it controls

I run a Visual C++ console test program inside the daily build. Every now and then the test would call some function that was changed by other developers improperly, descend into an infinite loop and hang thus blocking the build. I need a watchdog…
sharptooth
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What's the best practice when setting maxAllowedContentLength in IIS?

In our ASP.NET application some users hit maxAllowedContentLength limit (which is set to 32 megabytes in our application) when sending large POST requests. Suppose we just blindly increase the limit to half gigabyte - what problems should be expect?…
sharptooth
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Failure scenarios for reliable UDP?

What could be good list of failure scenaros for testing a reliable UDP layer? I have thought of the below cases: Drop Data packets Drop ACK, NAK Packets Send packets in out of sequence. Drop intial hand shaking packets Drop close / shutdown…
Sunil
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High reliability of a web service

I want to make a web service that is highly reliable to a third-party web service. The high reliability here means any single request from the third-party web service will be successfully processed by my web service. The third-party service doesn't…
James Chen
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