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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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What's a reliable way to check whether or not my script is up AND not frozen?

I have a python (or ruby, doesn't really matter) script on a server which has to be reliable and run all the time. And if something happens and it crashes or gets frozen I need to know about that immediately. Previously I was thinking about another…
user266003
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Mule ESB + RabbitMQ reliability and up-time: how to re-create a deleted exchange automatically at runtime

I've got a Large mule application that receives on multiple queues and publishes to at least one exchange. I'm manually QA'ing the application by deleting the queues and exchanges to see if mule will retry to connect (and also shut down rabbit…
dlite922
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Copy and move files in Java, explanation and comparison of different approaches

I implement a file manipulation functionality, and I paid attention that Java provides multiple techniques to copy and move files. Below you can find code snippets, briefly describing these approaches: Approach #1: File from = new…
Mike
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Sending a large file over network continuously

We need to write software that would continuously (i.e. new data is sent as it becomes available) send very large files (several Tb) to several destinations simultaneously. Some destinations have a dedicated fiber connection to the source, while…
dpq
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time-point data of two raters

My data consists of two raters interpreting one specific phenomenon to occur at different points in time. I have two questions: 1) What do I call these data? "Time-series data" seems too general and usually refers to metric data changing…
pointingeye
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Simpy: How can I represent failures in a train subway simulation?

New python user here and first post on this great website. I haven't been able to find an answer to my question so hopefully it is unique. Using simpy I am trying to create a train subway/metro simulation with failures and repairs periodically built…
Harry Munro
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PCA item deletion

I'm working on a survey with 288 observation in total (108 complete answers used) and around 200 variables. I'm working on reducing those number using Principal Components Analysis, using R. Suppose that 3 items (loaded into a sub-dataset called…
Niccolo
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Can you safely rely upon Yahoo Pipes to offload ETL for your application?

Yahoo Pipes are a very intriguing choice for sort of a poor-man's server-free ETL solution, but would it be a good idea to build an application around one or many Pipes? I've really only used them for toy things here and there, with the only thing…
Daniel DiPaolo
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Probability of failure - Limit State Function - Monte Carlo Method

I want to calculate the probability of failure, pf adopting the monte carlo method. The limit state equation is obtained by comparing the substance content at a time t, C(x=a,t), and the critical content, Ccrit: LSF: g(Ccrit, C(x=a,t)) = Ccrit -…
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Do not lock on objects with weak identity

How can i resolve this reliability issue(Do not lock on objects with weak identity)? Should i lock it with "object locker = new object();"? lock (typeof(ObjectCultures)) { if (!requestCache.Contains(GetCacheKey(objectId, cultureId))) …
user4007544
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Design considerations for high-reliability service

I am writing a c# windows service which will perform some background processing - basically it is a consumer for a work queue. It needs to not go down (stop processing new items), and if it does go down I need to be notified. What are some design…
Gabe Moothart
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How can I measure the reliability of a result given by k-nearest neighbor classifier?

To explain, lets say I am checking 9 nearest neighbors and doing classification on a handwritten digits dataset. First instance in test set has five nearest neighbors of class '4' and four neighbors of class '9'. Second test instance has eight…
Mika
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SalesForce Notifications - Reliable Integration

I need to develop a system that is listening to the changes happened with SalesForce objects and transfers them to my end. Initially I considered SalesForce Streaming API that allows exactly that - create a push topic that subscribes to objects…
Sergio Kozlov
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iCloud Sync with Core Data SQLite Stability

Good day everyone, I am designing an inventory application using Core Data UIManagedDocument model and at the point of providing a data back up design. I am considering iCloud but have read online about chronic problems with iCloud and reliability…
ripilot
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About handling TCP connection when packet loss or connection broken

I have TCP server and clients written in C#. Since my connection is over wifi which is not reliable, I use resending the same packet and handle packet loss. For example a bank account platform. The user deposites money and the client send this…
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