Hi Harsha,
Thanks for the reply.
Issue is resolved as of now and the root cause was a runaway application
spawning many instances of kafkacat and hammering kafka brokers. I am still
wondering that what could be reason for shrink and expand is a client hammers a
broker .
--Ashish
On Thursday, January 24, 2019, 8:53:10 AM PST, Harsha Chintalapani
<[email protected]> wrote:
Hi Ashish,
Whats your replica.lag.time.max.ms set to and do you see any network
issues between brokers.
-Harsha
On Jan 22, 2019, 10:09 PM -0800, Ashish Karalkar
<[email protected]>, wrote:
> Hi All,
> We just upgraded from 0.10.x to 1.1 and enabled rack awareness on an existing
> clusters which has about 20 nodes in 4 rack . After this we see that few
> brokers goes on continuous expand and shrink ISR to itself cycle , it is
> also causing high time for serving meta data requests.
> What is the impact of enabling rack awareness on existing cluster assuming
> replication factor is 3 and all existing replica may or may not be in
> different rack when rack awareness was enabled after which a rolling bounce
> was done.
> Symptoms we are having are replica lag and slow metadata requests. Also in
> brokers log we continuously see disconnection from the broker where it is
> trying to expand.
> Thanks for helping
> --A
