When I initially learn about spring boot, I've learnt about spring cloud netflix hystrix as a circuit breaker. There were bunch of options such as multiple application properties and annotation bas...

I am trying to figure out how Hystrix request caching works but am not following the wiki or end-to-end examples they provide in their docs. Essentially I have the following HystrixCommand subclas...

I like the LWN article "Crash-only software" and I would like to learn more about crash-safe and fault-tolerant programming. It is surprisingly hard to assure that the persistent state is consiste...

I have the following Step: return stepBuilderFactory.get("billStep") .allowStartIfComplete(true) .chunk(20000) .reader(billReader) .processor(billProcessor) .faultTolerant() .skipLimit(Inte...

By reading this question, I understood, for instance, why dynamic allocation or exceptions are not recommended in environments where radiation is high, like in space or in a nuclear power plant. Co...

I have been reading many papers recently about Byzantine fault tolerance. There is a common proof that 3m+1 computers are needed to handle m Byzantine faults. The general proof goes something like ...

I would like to know about the existing approaches that are available when running Zookeeper across data centers? One approach that I found after doing some research is to have observers. That ap...

As mentioned in the ZooKeeper Getting Started Guide , a minimum of three servers are required for a fault tolerant clustered setup, and it is strongly recommended that you have an odd number of ser...

We are compiling an embedded C++ application that is deployed in a shielded device in an environment bombarded with ionizing radiation. We are using GCC and cross-compiling for ARM. When deployed, ...

So, here's the thing. I really like the idea of microservices and want to set it up and test it before deciding if I want to use it in production. And then if I do want to use it I want to slowly c...

I want a method of uniquely identifying tuples throughout a whole Storm topology, so that each tuple can be tracked from Spout to the final Bolt. The way I understand it is when passing a unique ...

We are using Service Stack's RedisClient's BlockingDequeue to persist some data until it can be processed. The calling code looks like using (var client = ClientPool.GetClient()) return client.A...

I just read the Hystrix guide and am trying to wrap my head around how the default circuit breaker and recovery period operate, and then how to customize their behavior. Obviously, if the circuit ...

I'm trying to wrap my head around Hystrix and after reading their docs, still have a question about its usage patterns. For one, I don't understand the use case for when to use their Asynchronous ...

How is Erlang fault tolerant, or help in that regard?

I would like to build a fault-tolerant soft real-time web application for a pizza delivery shop. It should help the pizza shop to accept phone calls from customers, put them as orders into the syst...

Backgound: In section 3, named Implementing a State Machine, of Lamport's paper Paxos Made Simple, Multi-Paxos is described. Multi-Paxos is used in Google Paxos Made Live. (Multi-Paxos is used in A...

I would like to simulate filesystem corruption for the purpose of testing how our embedded systems react to it and ultimately have them fail as gracefully as possible. We use different kinds of blo...

I've a very simple example where I've an Actor (SimpleActor) that perform a periodic task by sending a message to itself. The message is scheduled in the constructor for the actor. In the normal ca...

I am working on a system that have a RESTful web service that can manipulate it (the service allows all CURD operations), and a web client that displays the system's data(most of the client was wri...

Twilio and other HTTP-driven web services have the concept of a fallback URL, where the web services sends a GET or POST to a URL of your choice if the main URL times out or otherwise fails. In the...

The documentation for JobDetail.requestsRecovery property states the following Instructs the Scheduler whether or not the Job should be re-executed if a 'recovery' or 'fail-over' situation is ...

Is there a certification or some authority that decides if a soft core is fault tolerant or not? Another question. I've seen that LEON3-FT is radiation tolerant only when implemented on the RTAX A...

With the "let it crash" philosophy of Erlang, one would expect the entire VM not to crash if a process cannot allocate the memory needed to proceed with its operations; indeed, if the system had a ...

I'm not sure if this will be a specific thing with jsoncpp or a general paradigm with how to make a C++ library behave better. Basically I'm getting this trace: imagegeneratormanager.tsk: src/lib_...