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2467292 - memAllocSystemPages failed with rc=12 - Cannot allocate memory

Symptom

There are lot of "Out of Memory" situations and the indexserver trace contains a lot of errors like:

[23132]{-1}[98/58569543] 2017-04-27 11:09:54.493200 e Memory           Precharge.cpp(00146) : memAllocSystemPages failed with rc=12, 12 (Cannot allocate memory)

When the issue occured the system actually still had enough memory available.

For example you can see in the OOM-Dump:

[MEMORY_OOM]:

Failed to allocate 5147713536 byte (5,1GB)

[OS_MEMORY]:   

MemTotal:       888750656 kB (888,7 GB)
MemFree:        391448448 kB (391.4 GB)


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Environment

  • SAP HANA
  • SLES 11 SP2 / SP3 / SP4

Product

SAP HANA, platform edition all versions

Keywords

memory, limit, SAP HANA, SLES, Linux, Unix , KBA , HAN-DB , SAP HANA Database , Problem

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