ForceMerge an index

The Elasticsearch core is based on Lucene, which stores the data in segments on disk. During the life of an index, a lot of segments are created and changed. With the increase of segment numbers, the speed of searching is decreased due to the time required to read all of them. The ForceMerge operation allows us to consolidate the index for faster searching performance and reducing segments.

Getting ready

You need an up-and-running Elasticsearch installation, as we described in the Downloading and installing Elasticsearch recipe in Chapter 1, Getting Started.

To execute these commands, HTTP clients can be used, such as curl (https://curl.haxx.se/), postman (https://www.getpostman.com/), or others...