Hello,
Can anyone please point to any docs re how replica recovery works when broker 
is started? 
The documentation has information about broker rebuilding based on data on data 
dir- but what happens if data is completely lost? Would an empty replica be 
created based on zookeeper state- and if yes, how would election work in this 
case? 
The case im looking for is when brokers are stopped, data folder for all 
brokers are completely deleted but zk is untouched, and brokers are started 
again. So, zk retains all  information of topics 
https://cwiki.apache.org/confluence/plugins/servlet/mobile?contentId=27844516#content/view/27844516
 indicates that it is indeed rebuilt based on zk state but I couldn’t find any 
more details on this



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