The best replacement for zookeeper is etcd.

The best alternatives to zookeeper are rated as following:
★★★★★  etcd
★★★  redis
★★★  hazelcast
★★  oozie
★★  eureka
★★  yarn
★★  consul
★  mesos
★  jgroups
  zookeeper
  zoologist
  zoo keeper

Your alternative for zookeeper is not listed? Suggest!
Speaking about zookeeper, one probably shouldn't forget about solr.

Other search terms related to zookeeper and their ratings are:
★★★★★ solr
★★★★★ lion cubs
★★★ hbase
You have in mind a companion for zookeeper and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of zookeeper in all years. Click on graph for more.
zookeeper
etcd
redis