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3283101 - Out of Memory occurs when Total Allocated Memory is still much less than global_allocation_limit because of systemdb_reserved_memory

Symptom

Your system run out of memory although Total Allocated Memory is still much less than your global_allocation_limit.
e.g.

GLOBAL_ALLOCATION_LIMIT (GAL) = 60gb
Total allocated memory= 45gb 


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Environment

  • HANA 2.0
  • HANA 1.0

Product

SAP HANA 1.0, platform edition ; SAP HANA, platform edition 2.0

Keywords

blocked, OOM, allocation failed, shrunk, IPMM, Sum AB, Sum Used, Reason for shrink: SuperPage precharge for small block allocation , KBA , HAN-DB-PERF , SAP HANA Database Performance , How To

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