EM 13c: Enterprise Manager 13.1 Cloud Control OMS Host Alerts for the Memory Utilization (%) Metric, but more Memory is Available (Doc ID 2148885.1)

Last updated on JUNE 17, 2016

Applies to:

Enterprise Manager Base Platform - Version 13.1.1.0.0 to 13.1.1.0.0 [Release 13.1]
Information in this document applies to any platform.

Symptoms

Enterprise Manager (EM) 13.1 Cloud Control shows that the EM 13c OMS host at 98% memory utilization, resulting in a memory Utilization metric alert. However, the operating system still shows more memory than that is available:

cat /proc/meminfo

MemTotal: 20396228 kB (used as realMem)
.
.
.
Active: 13483724 kB (used as activeMem)

 

The Host Memory Utilization Percentage Calculation in Enterprise Manager Cloud Control:

<Document 1908853.1> The Host Memory Utilization Percentage Calculation in Enterprise Manager Cloud Control

This EM 12c formula is still in use in EM 13c:

Memory Utilization (%) = (100.0 * (activeMem) / realMem)

Applying this formula whows Memory Utilization (%) is measuring 66.1%

 

 

Cause

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