Qbox Blog Eliminating Duplicate Documents in Elasticsearch

Avoiding duplication in your Elasticsearch indexes is always a good thing. But you can gain other benefits by eliminating duplicates: save disk space, improve search accuracy, improve the efficiency of hardware resource management. Perhaps most importantly, you reduce the fetch time for searches. Surprisingly, there is little documentation available on this topic, so we offer this tutorial that gives you the proper technique for identifying and managing duplicates in your indexes.