I am trying to work out the safest process for replacing Zookeeper nodes in conjunction with Solr cloud. It would seem to me the safes process for doing this would be:
1) Reconfigure and restart each zookeeper node in the ensemble starting with the new nodes, the followers, and finally the leader. 2) Reconfigure and restart each solr node with all the zookeeper nodes. 3) Reconfigure and restart each zookeeper node starting with the nodes to be removed followed by the nodes staying. 4) Reconfigure and restart each solr node to remove the nodes leaving the zookeeper ensemble. I am wondering if it would be safe to reduce the solr reconfigure to one step. Step 2 would then be Reconfigure and restart each solr with only the zookeeper nodes that are staying in the ensemble. My concern is if the leader node is going to be removed and Solr is not configured to talk to the current zookeeper leader, will that be a problem? -- Daniel S Washko Solutions Architect [cid:[email protected]] Phone: 757 667 1463 [email protected] gannett.com<http://www.gannett.com/>
