What are the differences between Elasticsearch and SOLR?

Related questions

1. What is Elasticsearch good for?
2. What is Elasticsearch Linux?
3. What is an Elasticsearch cluster?
4. Why do we rebuild indexes?
5. What is Elasticsearch curator?
6. How does primary key work in Oracle?
7. What can Elasticsearch do?
8. Does primary key create an index in Oracle?
9. What can Kibana do?
10. Does SQL Server automatically rebuild indexes?

Tags

1. #built
2. #cluster
3. #called
4. #depends
5. #apache
6. #fully
7. #zookeeper
8. #distributed
9. #internal
10. #mechanism
11. #comparison
12. #elasticsearch
13. #deployment
14. #component
15. #state
16. #coordination
17. #handle
18. #solrcloud