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 <ashish_karal...@yahoo.com.INVALID>, 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
