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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 much trust can I put behind a computer system? How can I measure trust?

How much trust can I put in a standard computer running windows? To what certainty can I be sure it will run my code the way I wrote it? How can I be sure that if I declare something like "int j = 5;", j will alway be 5? Is there a way to measure…
danmine
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Cloud services to notify on a script not succeeding for a long time

I have a python script that resides on a VPS, reads (each hour) financial news from a public datafeed and emails me when certain keywords of interest appear. That can happen only a few times a week, but such events are very important and must not be…
Anatoly Alekseev
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How to clear/refresh figure in tkinter

I'm trying to design a user interface for an app. The app will be using reliability and fitter to show the user some graphs. Problems Using reliability is difficult to show the graph on tkinter without having a mini figure popping out constantly as…
Isaac98
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Does Nesting CRC calculations increase reliability (ie decrease error probability)?

If I have a payload, and I calculate a crc32 value on that payload (of arbitrary size), then I juxtapose that crc value next to the payload, treat the whole thing recursively as a new payload, then calculate a crc32 value on that, and juxtapose that…
mo FEAR
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Using weibulltools package in R to calculate distribution functions, hazard plots and reliability plots

I'm using weibulltools package in R to estimate the life of a product. I would like to know if it is possible to add more functions like creating probability density plots, hazard plots, reliability plot (which is 1- unreliability). As far as I…
Matheus assi
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is there a function in excel to group values based on the data shown?

Date Running SB PM DT 1-jan 24 0 0 2-jan 0 0 0 24 3-jan 24 0 0 4-jan 24 0 0 5-jan 0 24 I need to calculate TTF which is time to failure needs to be calculated based on the running hrs which happens on 1jan, that becomes my…
chinna venkat
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Is the Azure role host actually restarted when a role crashes or is restarted via management API?

Suppose my Azure role somehow exhausts system-wide resources. For example it spawns many processes and all those processes hang and consume all virtual memory in the system. Or it creates a gazillion of Windows API event objects and fails to release…
sharptooth
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How should I conduct concordance analysis between categorical and continuous variables?

I am currently having difficulty choosing a statistical test to validate concordance between two measures using two different measurement styles. Below are how my variables are structured. I will use a fake example of my data of to help demonstrate…
Jacob Sorbello
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How can the Weibull PDF parameters be correctly determined from a series of measurements?

Assuming I have a series of hourly measured values, such as the mean wind speed. A start and end date is used to limit the data in terms of time. From these data I can calculate the frequency of the values for individual categories. The first…
SnoopyBrown
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How to avoid "Positive Feedback Cycle Overload Problem"?

Sometimes while designing reliable systems, we try to make the system more reliable by adding retries in event of failure (with feedback mechanisms). And it results to potential for an overload because we may be adding more load to an already…
Stalin Rijal
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How to handle throttling of downstream APIs when using serverless functions (Azure)?

I have a set of APIs developed using Azure Functions (stateless), the backend for this API is Microsoft graph. The number of APIs called per day is ~2000, at peak we have observed 5 requests per second. The control flow is as below, Gateway (On…
user527614
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php file uploads over 200mb

after changing the max file size, session times, and post max size is it wise to use php to upload files larger than 200mb? reliable? (and this is ignoring whether a client connection is maintained) edit: done through http not ftp
Dacto
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Bland-altman plots: how to change y axis

Does anyone know how to change the ylim on Bland-Altman plots when using this code? I would like to use the code below for the bland-altman plots because I like the way they look and how easy it is to add the 95%…
CatM
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Error return when running alpha command in r

I am trying to complete a cronbach alpha analysis on my dataframe, but am getting an odd error. My dataset is set up like: DF Var1 Var2 Var3 Var4 A 12 14 A C 14 13 D etc----- I am using the command:…
JeffB
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Ensure specific containers keep running even if /var/lib/docker partition is full?

I maintain a lot of Docker containers. I know that the most common failure mode is running out of disk space in /var/lib/docker, which can completely paralyze Docker - after reboot, it might not go up at all. Is there a way to protect specific…
d33tah
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