Aikesheng Open Source Community
Jun 27, 2019 · Databases
Understanding MongoDB Sort Memory Limits and Index Optimization
This article analyzes MongoDB sort operation memory limits, explains why queries may exceed the 32 MB in‑memory sort threshold, demonstrates how to inspect and adjust server parameters, create appropriate compound indexes, and use allowDiskUse in aggregation pipelines to avoid sort‑related errors.
AggregationEXPLAINIndexing
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