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Apache Solr High Performance by Surendra Mohan

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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 ...

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