Book Image

Apache Solr High Performance

By : Surendra Mohan
Book Image

Apache Solr High Performance

By: Surendra Mohan

Overview of this book

Table of Contents (14 chapters)

Chapter 5. Troubleshooting

You must have faced a number of problems while playing around with Solr's deployment, irrespective of whether the deployment is simple or complex, or whether you are working on a single Solr instance or multiple servers or shards.

In this chapter, we will learn how to troubleshoot a list of the most common problems you are prone to facing while you are still in the Solr playground, and will cover the following topics:

  • Dealing with the corrupt index

  • Reducing the file count in the index

  • Dealing with the locked index

  • Truncating the index size

  • Dealing with a huge count of open files

  • Dealing with out-of-memory issues

  • Dealing with an infinite loop exception in shards

  • Dealing with expensive garbage collection

  • Bulk updating a single field without full indexation

So, let us get started.