OOM happens where roughly half of the total RAM is reserved for Hugepages for Oracle Database SGA

Solution Verified - Updated -

Issue

  • The RHEL guest running on VMware ESXi got hung up.
  • Oracle Database processes were running at that time.
  • Roughly half of the total RAM was reserved/utilized for hugepages for Oracle Database SGA at that time.

Environment

  • Red Hat Enterprise Linux 7.9.z - kernel-3.10.0-1160.76.1.el7
  • Oracle Database
  • VMware ESXi

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