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From Andrey Dyachkov <andrey.dyach...@gmail.com>
Subject Re: Kafka client circuit breaker
Date Sun, 30 Oct 2016 19:25:17 GMT
R Krishna,

We have default timeout for producer and consumer it is 30 secs.
If Kafka is not available we will wait 30 secs on each request.
Decreasing timeout won't help much because we have a lot requests
but circuiting them will help us tremendous. We could implement such
logic before actually calling Kafka client but there is problem what the
trigger is to open the circuit.
I thought about circuiting by unavailable broker
but it is quite an expansive operation to figure out in the client's code
on the flip side Kaka client already does all the job to make out the

For us very important to stay live even if Kafka is unavailable (it
happens) that's why I think avoiding cascading issues will be very useful.

On Sat, 29 Oct 2016 at 19:22 R Krishna <krishna81m@gmail.com> wrote:

> What are the issues and problems you want to solve though?
> On Oct 29, 2016 3:59 AM, "Andrey Dyachkov" <andrey.dyachkov@gmail.com>
> wrote:
> > Hi,
> >
> > We use Kafka for around half a year as a main backend system for storing
> > events from big variety of internal microservices. In general It works
> > quite well and we experience issues only in some rare 'corner cases'
> where
> > we either run against a bug or do not understand why Kafka behaves in
> > particular manner. The fact Kafka is the main system is used under our
> > software If it fails our system will fail too. That's why I am writing to
> > ask about the solution which can help us tolerate different issues on
> Kafka
> > side. First of all could you tell me why doesn't Kafka client have the
> > solution for this kind of problems? Have you ever had thoughts about it?
> > Thank you in advance!
> > --
> >
> > With great enthusiasm,
> > Andrey
> >

With great enthusiasm,

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