[sheepdog] [ANNOUNCE] earthquake: a framework for distributed systems debuggers

[Ruoyu]

Sounds good. Is there any guide for earthquake?

I encounter a problem when I execute the build script in the project's path.

$ ./build
gopath/src/code.google.com/p/goprotobuf/proto/text.go:39:2: no Go source 
files in /usr/lib/go/src/pkg/encoding
protoc-gen-go: program not found or is not executable
--go_out: protoc-gen-go: Plugin failed with status code 1.
protoc-gen-go: program not found or is not executable
--go_out: protoc-gen-go: Plugin failed with status code 1.
~/github/earthquake/earthquake ~/github/earthquake
../gopath/src/code.google.com/p/goprotobuf/proto/text.go:39:2: no Go 
source files in /usr/lib/go/src/pkg/encoding
~/github/earthquake


On 2014年12月08日 15:16, Hitoshi Mitake wrote:
> Hi sheepdog developers and users,
>
> I'd like to let you know about earthquake project, a framework for
> distributed systems debuggers focusing on non deterministic behavior
> and hardware faults.
>
> As you already know well, many critical bugs of sheepdog come from
> below two factors:
> 1. non deterministic behavior of multi process and networked
>     environment
> 2. hardware faults which trigger recovery sequence, very important but
>     hard to test stuff
>
> Bugs produced by the above two factors are known as hard to be removed
> via ordinal debugging techniques. earthquake is trying to solve this
> problem. It let target distributed system proceed in a deterministic
> manner forcibly via source code translation (currently, earthquake
> enables it by LLVM libtooling based translation for C programs). In
> addition, it cooperates with fault injectors in virtual device of
> QEMU. With this two feature, earthquake enables fine grained fault
> injection e.g. disk fault when sheep A is in state S0, sheep B is in
> S1, QEMU is in S2.
>
> I'll post patches for applying earthquake for debugging sheepdog
> soon. If other developers are interested in it, comments and questions
> are welcome.
>
> Although it is very, VERY alpha status (maybe I'm an only person who
> can use it), if you are interested in it, you can obtain the source
> code from here: https://github.com/osrg/earthquake
>
> Thanks,
> Hitoshi