Frequent Out of Memory Errors in Apache Solr – Amrit Sarkar – Medium
This article details various endpoints to check when Solr is encountering Out-Of-Memory frequently. There can be various diverse reasons, and here we try to list down the most common ones:
- Solr Caches — QueryResultCache, DocumentCache, FilterCache, FieldCache
- Sorting/Faceting/Grouping on fields which are not DocValues
- Insufficient Heap Memory allocated to Solr JVMs
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