Stack Overflow
Stack Overflow

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.

305 questions
2
votes
1 answer

For how much time ZeroMQ (0MQ) server keeps state information of a client sending messges?

I am studying the message delivery guarantee in ZeroMQ, if it ensures exactly-once message delivery. The classic method is to keep the message number and client ID at the receiving node, and each time a message received should be compared with the…
Ziad Kassam
  • 21
  • 3
2
votes
3 answers

How many Docker containers should I run

Docker tutorials often say I can run more containers in order to increase the availability of my webapp. However, that's a really broad statement and doesn't explain how many containers should I actually run in different situations. How do I know if…
Boring person
  • 443
  • 1
  • 5
  • 12
2
votes
9 answers

How you test your applications for reliability under badly behaving i/o

Almost every application out there performs i/o operations, either with disk or over network. As my applications work fine under the development-time environment, I want to be sure they will still do when the Internet connection is slow or unstable,…
bohdan_trotsenko
  • 5,167
  • 3
  • 43
  • 70
2
votes
2 answers

Most reliable way of comparing datetimes?

I primarly use Delphi in my workplace and during some thorough unit tests which involved comparing date times I discovered that a direct comparison using the equals operator was not reliable enough when comparing calculated dates etc. So as a rule I…
James
  • 80,725
  • 18
  • 167
  • 237
2
votes
2 answers

How is it possible to reliably send JMS message? (fail over MessageProducer.send() errors)

Is it possible to reliably send JMS message to the destination? By reliably I mean ensuring that if e.g. MessageProducer.send() call fails for some reason, it will be retried automatically. I realize that transaction session may use .recover() as…
an envy guest
  • 23
  • 3
2
votes
2 answers

Is activemq reliable?

We have put ActiveMQ on a fresh server. Configured it to use 'kahadb' (the preferred as we read) and set it to allow the file to expand to 2gb. Then when we put load on the queue (+- 500/sec), within a few minutes activemq crashes. When ActiveMQ…
Toad
  • 15,593
  • 16
  • 82
  • 128
2
votes
1 answer

Reliability in UDP

I have to do a bittorrent application project in Java, and it require to transport data by UDP protocol, not TCP. In this project, the teacher asks me to assure the reliability in UDP protocol. So I have searched some solutions on the internet and…
Lee Dat
  • 155
  • 1
  • 6
  • 20
2
votes
1 answer

reliability: Master/slave pattern is doomed?

More and more of the noSQL databases that are in the spotlight uses the master/slave pattern to provide "availability", but what it does (at least from my perspective) is creating the weak link in a chain that will break anytime. - Master goes down,…
Industrial
  • 41,400
  • 69
  • 194
  • 289
2
votes
2 answers

How to make RabbitMQ more reliable? Is it possible to have it backup its data (messages) periodically?

I want to ensure no will be lost in RabbitMQ if case it crashes. Is is possible to somehow have RabbitMQ dump or backup all the queues it has on disk? I also have heard that once it receives a messages and even if it crashes, when it's up the…
Steven
  • 177
  • 1
  • 1
  • 8
2
votes
1 answer

Building reliability in Spring JPA webapp

I am trying to find a solution to build reliability into our webapp. The plan is to dump sql along with data if network connectivity/database connection is lost. In current implementation we have Rest controller, Service, DAO. The DAO throws…
HereToLearn
  • 153
  • 1
  • 2
  • 10
2
votes
2 answers

Why isn't this plotting multiple functions in one graph?

I'm having some problems trying to plot multiple reliability functions in one single graph from a inverse gaussian distirbution. I need the functions to be lines, and all I got is points, when trying to set type="l", it happens to be a mess drawing…
LuisRD
  • 25
  • 5
2
votes
1 answer

F# Event Handlers - Ensuring crash in one handler doesn't affect the others

A tool I am working on requires reliable delivery of events between participating entities. In the .NET/F# eventing infra (i.e. Event<>/IEvent<>), framework does not guarantee that all event handlers will be called. E.g. crash in one handler may…
R4n D3v
  • 63
  • 4
2
votes
2 answers

Apple notifications reliability

Okay so it's pretty obvious that push notifications aren't always reliable, as stated in the docs. Correct me if I'm wrong, it's simply because someone might not have internet for an extended period of time and the notification could for example,…
Gil Sand
  • 5,802
  • 5
  • 36
  • 78
2
votes
1 answer

Implementing the reliability pattern in CloudHub with VM queues

I have more-or-less implemented the Reliability Pattern in my Mule application using persistent VM queues CloudHub, as documented here. While everything works fine, it has left me with a number of questions about actually ensuring reliable delivery…
jpendle
  • 220
  • 1
  • 9
2
votes
1 answer

Methodology/Template for calculating Application reliability five Nines/Six Nines?

any concrete suggestions for computing application/System reliability ?
Kumar
  • 10,997
  • 13
  • 84
  • 134
1 2 3
…
20 21