Step-by-step instructions for solving common Elasticsearch problems in production environments.

How to Use These Guides
Each guide is designed for immediate application in specific problem situations. Check the prerequisites in the “Before You Begin” section, then follow the steps.

Troubleshooting#

GuideDescriptionLevelDuration
Slow Query OptimizationDiagnose and improve slow search response timesIntermediate15-30 min
Memory TroubleshootingHandle OOM and GC issuesIntermediate20-40 min

Operations#

GuideDescriptionLevelDuration
Mapping MigrationChange index mappings without downtime using Reindex and Alias switchingIntermediate20-40 min
Index RebuildEfficiently rebuild large indices using _reindex, Snapshot/Restore, or LogstashIntermediate30-60 min
Cluster ScalingSafely scale an Elasticsearch cluster with node addition and Hot-Warm-Cold architectureAdvanced30-60 min