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EM 13c: Agent Heartbeat Status Shows : OMS Response Is Missing (Doc ID 2990771.1)

Last updated on DECEMBER 11, 2023

Applies to:

Enterprise Manager Base Platform - Version 13.5.0.0.0 and later
Information in this document applies to any platform.

Symptoms

In Enterprise Manager (EM) Cloud Control, Agent Heartbeat Status shows : OMS response is missing

All the agents from the console shows down

$emctl status agent
Oracle Enterprise Manager Cloud Control 13c Release 5
Copyright (c) 1996, 2021 Oracle Corporation. All rights reserved.
---------------------------------------------------------------
Agent Version : 13.5.0.0.0
OMS Version : (unknown)
Protocol Version : 12.1.0.1.0
Agent Home : ../agent/agent_inst
Agent Log Directory :../agent/agent_inst/sysman/log
Agent Binaries :../agent/agent_13.5.0.0.0
Core JAR Location : ../agent/agent_13.5.0.0.0/jlib
Agent Process ID : 50579
Parent Process ID : 46190
Started at : 2023-12-01 04:30:32
Operating System : Linux version 4.14.35-2047.518.4.3.el7uek.x86_64 (amd64)
Number of Targets : 20
Last Reload : (none)
Last successful upload : (none)
Last attempted upload : (none)
Total Megabytes of XML files uploaded so far : 0
Number of XML files pending upload : 19
Size of XML files pending upload(MB) : 0.04
Available disk space on upload filesystem : 32.45%
Collection Status : Collections enabled
Heartbeat Status : OMS response is missing
Last attempted heartbeat to OMS : 2023-12-01 04:30:48
Last successful heartbeat to OMS : (none)
Next scheduled heartbeat to OMS : 2023-12-01 04:31:18

---------------------------------------------------------------
Agent is Running and Ready

 

Cause

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In this Document
Symptoms
Cause
Solution


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