reliability Questions
10
Solved
We are currently setting up the evaluation criteria for a trade study we will be conducting.
One of the criterion we selected is reliability (and/or robustness - are these the same?).
How do you ...
Regalia asked 7/11, 2008 at 15:3
2
Solved
I would like to calculate a one sided tolerance bound based on the normal distribution given a data set with known N (sample size), standard deviation, and mean.
If the interval were two sided I wo...
Repentant asked 2/9, 2020 at 3:33
1
Solved
Question:
How do I get the UART output from a baremetal program run with Qemu?
Background
Here is the command line invocation I have been using:
qemu-system-arm -M xilinx-zynq-a9 -cpu cortex-a9...
Woodworker asked 5/3, 2020 at 19:2
2
Solved
I'm writing a sports app that needs to track the elapsed time of quarter/half/period. Elapsed time needs to be accurate to the second. The game clock needs to continue to run even if the user expli...
Diocese asked 7/2, 2011 at 5:0
1
I'm reading Google's Site Reliability Engineering book and ran across the word crashloop which I've never heard before and have not been able to locate a definition
"If a task tries to use more...
Thionate asked 31/8, 2018 at 15:0
1
Imagine that a regular computer intensively works for 5 years non-stop. The CPU always works at 100% and is constantly reading and writing to memory. Is it true that the computer will not make a si...
Apostate asked 10/2, 2017 at 13:3
1
Solved
I have a application that runs periodically (it's a scheduled task). The task is launched once a minute, and normally only takes a few seconds to do its business, then exits.
But there's a ~1 in 8...
Overexert asked 5/5, 2016 at 15:44
1
Solved
In an initialization script, I want to initialize a PostgreSQL directory, but don't need (and don't want) a running PostgreSQL server at this stage.
This would be a no-brainer if I just create the...
Optometer asked 14/10, 2016 at 10:22
6
Solved
Take this conceptually simple task: consuming a queue, sending an email for each entry.
A simple approach would be:
while true:
entry = queue.pop()
sendMail();
The problem here is, if the con...
Faunus asked 12/4, 2016 at 9:8
1
Solved
I'm computing omega for several different scales; and get different warning messages for different scales with different omega functions in R. My questions are regarding how to interpret these warn...
Northumbria asked 19/4, 2016 at 11:23
4
Solved
Our Current Design
Env Redis 2.8.17
We have implemented our reliable queue, using the pattern similar to the one described in redis documentation, under RPOPLPUSH
However, we are using BRPOPLPUS...
Vauban asked 16/1, 2015 at 14:54
2
Solved
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 approac...
Dwan asked 29/6, 2015 at 18:36
4
Solved
Erlang was reported to have been used in production systems for over 20 years with an uptime percentage of 99.9999999%.
I did the math as the following:
20*365.25*24*60*60*(1 - 0.999999999) == 0....
Edlin asked 8/12, 2011 at 6:6
5
Solved
I need a method to monitor user edit sessions, and one of the solutions I'm reviewing will have me using an unload event to send an ajax request to inform the server of the end of the edit session....
Crassulaceous asked 27/8, 2010 at 12:51
6
Solved
There is a fairly common pattern used in .NET to test for the capabilities of a class. Here I'll use the Stream class as an example, but the issue applies to all classes that use this pattern.
The...
Rickrack asked 31/7, 2009 at 6:4
6
Which one among these two time functions is better?
I have a form on my website which is submitted by thousands of users every microsecond or less , thus , thousands of requests at the same time ...
Helterskelter asked 24/8, 2012 at 10:32
3
Solved
We're developing a web service hosted in Windows Azure. We expect that at some moments bad guys try to DDOS it. I Googled and didn't find anything new and definitive (this one is rather vague) abou...
Nf asked 5/9, 2011 at 13:54
1
I have been trialling the Bizspark / Azure offer for my company. When we accidentally exceeded our free usage limit by 1c, Microsoft deleted our VMs and handed our IP addresses to other custo...
Octa asked 28/12, 2012 at 10:56
6
Solved
This seems like a pretty obvious, basic thing to expect from the Graph API, but I'm having serious difficulty with it. All I want to do is get the ID for any particular URL. They have a method for ...
Horsa asked 27/8, 2010 at 5:14
2
Solved
My Azure role grabs stuff to process from a database - it holds an instance of System.Data.SqlClient.SqlConnection and periodically creates an SqlCommand instance and executes an SQL query.
Now on...
Gatling asked 10/8, 2011 at 6:3
2
I am trying to figure an agreement protocol on an unreliable channel. Basically two parties (A and B) have to agree to do something, so it's the two generals' problem.
Since there is no bullet-pro...
Crowberry asked 3/12, 2011 at 14:37
1
Solved
I did some research on this, but wasn't able to find any substantial answers, so turning to StackOverflow.
How reliable is Amazon's S3 in terms of high-availability and reliability? I realiz...
Rendezvous asked 18/9, 2012 at 19:14
4
I work for a small company developing a complex medical device with a rich UI. We are currently at the early stages of design. The application is targeted for Windows (desktop only) and prefe...
Sweaty asked 31/7, 2012 at 8:32
3
Solved
When a JVM-ran (written in Scala actually, but I tend to believe that the solution is going to be pretty much the same for Groovy, Clojure or pure Java) console program of mine gets terminated by t...
Garden asked 3/2, 2012 at 12:3
1
Solved
I have been reading about Reliability Features in .NET and have written the following class to explore ExecuteCodeWithGuaranteedCleanup
class Failing
{
public void Fail()
{
RuntimeHelpers.Prepa...
Alcinia asked 7/4, 2010 at 9:45
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