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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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inter-rater reliability by groups

I have a dataset that looks like the following but with much more rows and groups: df2 <- data.frame( "group" = c(1, 1, 1, 1, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5), "R1" = c(1, 0, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 0, 0,…
ZayzayR
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Block endpoint from receiving lots of unwanted 3rd party traffic (probe-like)

Our site's reliability is less than 100%, due to a ton of useless 3rd party probes. We fail them explicitly, however, they add additional load on on Azure AKS nodes and pose a security threat. At time more than half of the requests is from this type…
abs
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C++: pros and cons of different sleep methods for a specific time duration

I need to find the most reliable/stable (against spurious wakeups, scheduling or resource contention delays, etc) way in C++ to sleep for a specific time duration (in my case, given as a number of seconds expressed as a floating point number). I…
S.V
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x must be numeric corrolation

I have two datasets for the same participants' responses but at two different times. I want to examine the stability reliability by doing a test-retest using Spearman correlation > colA # A tibble: 7 x 42 Va1 Va2 Va3 Va4 Va5 Va6 `V1-1`…
Hani
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Is there a way of seeing steps in importance sampling?

In the following code from Openturns FORM example: import openturns as ot model = ot.SymbolicFunction(['x1', 'x2'], ['x1^2+x2']) R = ot.CorrelationMatrix(2) R[0,1] = -0.6 inputDist = ot.Normal([0.,0.], R) inputDist.setDescription(['X1',…
Aeroman
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How to ensure file upload to storage?

Basically I'm able to upload videos using a signed url to an S3 bucket which is working fine right now but I'm wondering if there's any precautions to take to ensure the video files will upload.
donovan
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SPSS computes Fleiss Multirater Kappa instead of Cronbach Alpha

Im having difficulty computing Cronbach's Alpha on a measure's subscales. The subscales are all likert ratings, of which the variables have been set up as ordinal string variables with 7 (0 to 6) values. When I use Analyze>Scale>Reliability and put…
Clifford Lewis
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Failure rate of a system

In a Microsoft interview I was asked the following question: A system is guaranteed to fail 10% of a time within any given hour, what's the failure rate after two hours ? after a million hour ? I'm not very experienced in Reliability theory and…
wooda
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A topic has 3 replicas and min.insyinc.replicas to 2, what happens when both the follower and in-syinc replica go down and the consumer wants to read?

I am preparing for the CCDAK certification and I stepped into this question: "A topic has three replicas and you set min.insync.replicas to 2. If two out of three replicas are not available, what happens when a consume request is sent to…
Cr4zyTun4
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Is it possible to trash an Azure role host and get it started on the same host without cleanup?

Suppose my Azure role creates a lot of temporary files in Windows temporary folder and forgets to delete them. At some point it will receive "can't create temporary file" error. Suppose that once that happens my role code throws an exception out of…
sharptooth
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What assumptions can I make about global time on Azure?

I want my Azure role to reprocess data in case of sudden failures. I consider the following option. For every block of data to process I have a database table row and I could add a column meaning "time of last ping from a processing node". So when a…
sharptooth
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Does HTTP multipart/form-data provide reliability guarantees?

I have react front-end and flask backend web application. In this web app, I upload large CSV files from client to server via HTTP multipart/form-data. To achieve this, I take file information in
element, with…
Ruchit Vithani
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Can Messenger's consume command be allowed to recover from SQS message read failures?

I'm working on a simple microservice we've put together to queue and send emails. In live environments the queue uses SQS at the moment, via the latest Symfony Messenger component (v5.2.x) and its SQS bridge. This mostly works nicely, but…
NoelLH
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Constant replication factor in growing NoSQL cluster

I have NoSQL cluster with RF = 3. This means, having 2 or 3 nodes simultaneously down, some pieces of data (that have all its replicas belonging to failed nodes) will become unavailable. While the cluster size is about 10 nodes, the chance of 2…
Eugene Mitskevich
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R: ICC for Inter-Rater and Intra-rater Variability, getting ICC=1

I am having issues with the ICC function from the psych package in R. Pretty much we had three technicians (AA,AB,AC) who measure 11 control solutions three times. We know the control values for these solutions(F_exp). The three measurements were…
Shivvy
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