6. Gopa AbandonedGOPA, a spider written in Go.(NOTE: this project moved to https://github.com/infinitbyte/gopa )
8. Elasticsearch Carrot2a elasticsearch plugin integrated with carrot2,which clustering your search results into topics,
9. Elasticsearch Analysis MmsegThe Mmseg Analysis plugin integrates Lucene mmseg4j-analyzer:http://code.google.com/p/mmseg4j/ into elasticsearch, support customized dictionary.
10. Infini GatewayINFINI-GATEWAY(极限网关), a high performance and lightweight gateway written in golang, for elasticsearch and his friends.
12. esmAn Elasticsearch Migration Tool.
15. elasticsearch-analysis-string2intstring2integer analysis for elasticsearch,save your memory and reduce the size of your index,the size of the filedcache can be reduced from giga to mega,and also the query time can be reduced from minutes to millionseconds.