Indexing Data in Elasticsearch
This course explains the index distribution architecture of Elasticsearch, cluster configuration, shards and replicas, similarity models, advanced search, and mixed-language documents, all of which improve the performance of search queries.
What you'll learn
Getting Elasticsearch up and running is very simple, but tuning it to have low latency and high performance for search queries requires a deep understanding of the index distribution architecture. In this course, Indexing Data in Elasticsearch, you will understand the structure of distributed indices and advanced search constructs such as similarity models, segment merging, suggesters, fuzzy searches and working with mixed-language documents. First, you will study why shard overallocation is a good thing and how you can configure your cluster to avoid the split-brain scenario. Then, you will see how indices can be configured to use different similarity models and how to use force merging of segments to improve the performance of large indices. Next, you will explore how to cache prudently and use advanced search features. Finally, you will learn to deal with different languages in the same document with the ICU plugin. At the end of this course, you will have a deep understanding of how indexing works in Elasticsearch and be comfortable with advanced query constructs.
Table of contents
- Version Check 0m
- Module Overview 2m
- Prerequisites and Course Overview 3m
- Demo: Elasticsearch Installation on a Local Machine 5m
- Demo: The Elasticsearch Head Plugin 2m
- Distributed Architecture 3m
- Demo: Configuring VMs on the Google Cloud Platform 7m
- The Split-brain Scenario 3m
- Demo: Configuring and Running a Cluster 7m
- Shards and Replicas 7m
- Demo: Shards and Data 5m
- Allocating Shards and Replicas 4m
- Demo: Routing to a Specific Shard 5m
- Demo: Routing Using Aliases 4m
- Demo: Query Preferences 4m
- Module Overview 1m
- The TF/IDF Relevance Algorithm 5m
- Understanding the BM25 Similarity Model 8m
- Demo: Configuring Similarity Models 3m
- Demo: Configuring Per-field Similarity Models 2m
- Demo: Custom Similarity Models 6m
- Merging Segments 6m
- Demo: Force Merge Segments 7m
- Caching 3m
- Demo: Shard Request Caching 5m
- Demo: Query Caching 4m