Chapter 6. Improving Indexing Performance
In the previous chapter, we looked at the core components of an Elasticsearch cluster. We talked about nodes, shards, and replicas. We tried to explain the architecture of distribution and both shards and documents by Elasticsearch. Then, we looked closely at the functions performed by replica shards. Finally, we discussed how to configure a cluster correctly and how to choose the right amount of shards and replicas. In this chapter, we will look at how we can realize effective indexing. For this purpose, we will examine memory configuration and mapping definition tips. We will look at segments and merging policies. Then, we will examine how to throttle disk I/O operations. By the end of this chapter, we would have covered the following topics:
How to configure memory for better performance
The discovery of JVM memory structure
Types of garbage collector
Different strategies among garbage collectors
How to choose the right merge policy
How to optimize...
