Problem
description:-
Recently for a customer we
had performed a DR Drill . The customer had OEM agent installed in all
oracle database server . Now after the drill was successful there was a requirement
to restore one of the server from VM snapshot backup which was taken before the
drill. Now after restoration of that vm , the OEM agent for that target was
showing status as 'Diagnose for Agent Blocked (Bounce Counter Mismatch)'
Solution:-
To resolve this problem , we did the following.
Logged into target DB server where agent status was showing
as follows
|
E:\Agent13c\agent_inst\agent_13.5.0.0.0\bin>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 :
E:/Agent13c/agent_inst/agent_inst Agent Log
Directory :
E:/Agent13c/agent_inst/agent_inst\sysman\log Agent
Binaries :
E:\Agent13c\agent_inst\agent_13.5.0.0.0 Core JAR
Location :
E:\Agent13c\agent_inst\agent_13.5.0.0.0\jlib Agent Process
ID : 6428 Parent
Process ID : 5376 Agent
URL : https://WMDR.com:3872/emd/main/ Local Agent
URL in NAT : https://WMDR.com:3872/emd/main/ Repository
URL : https://OEM-DBMGR.com:1159/empbs/upload Started
at : 2024-05-13 03:30:26 Started by
user : WMDR16$ Operating
System : Windows version 10.0
(amd64) Number of
Targets : 6 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 : 672 Size of XML
files pending upload(MB) : 0.91 Available
disk space on upload filesystem :
44.17% Collection
Status :
Collections enabled Heartbeat
Status :
Agent is blocked Blocked
Reason : Agent is
out-of-sync with repository. This most likely means that the agent was
reinstalled or recovered. Please contact an EM administrator to unblock the
agent by performing an agent resync from the console. Last
attempted heartbeat to OMS
: 2024-05-13 04:55:01 Last
successful heartbeat to OMS
: (none) Next
scheduled heartbeat to OMS
: 2024-05-13 04:58:01 --------------------------------------------------------------- Agent is
Running and Ready |
As we can see the Hearbeat status is showing “Agent is
Blocked” and reason behind block is
agent is out of sync with its repository.
To resolve this problem, We logged into OMS Server and
executed following
|
E:\>cd
E:\u01\app\middleware\bin E:\u01\app\middleware\bin>set
OMS_HOME=E:\u01\app\middleware E:\u01\app\middleware\bin>SET
JAVA_HOME=E:\u01\app\agent\agent_13.5.0.0.0\oracle_common\jdk E:\u01\app\middleware\bin>SET
ORACLE_HOME=E:\u01\app\middleware E:\u01\app\middleware\bin>emcli
login -username=sysman Enter
password : Login
successful E:\u01\app\middleware\bin>emcli
sync Synchronized
successfully E:\u01\app\middleware\bin>emcli
resyncAgent -agent=WMDR.com:3872 Resync job
RESYNC_20240513083609008 successfully submitted |
After a while, when we checked the oem hearbeat status was
showing OK.
|
E:\Agent13c\agent_inst\agent_13.5.0.0.0\bin>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 : 13.5.0.0.0 Protocol
Version : 12.1.0.1.0 Agent
Home :
E:/Agent13c/agent_inst/agent_inst Agent Log
Directory :
E:/Agent13c/agent_inst/agent_inst\sysman\log Agent
Binaries :
E:\Agent13c\agent_inst\agent_13.5.0.0.0 Core JAR
Location :
E:\Agent13c\agent_inst\agent_13.5.0.0.0\jlib Agent Process
ID : 2660 Parent
Process ID : 7172 Agent
URL : https://WMDR.com:3872/emd/main/ Local Agent
URL in NAT : https://WMDR16.com:3872/emd/main/ Repository
URL : https://OEM-DBMGR.com:1159/empbs/upload Started
at : 2024-05-13 05:33:22 Started by
user : WMDR16$ Operating
System : Windows version 10.0
(amd64) Number of
Targets : 6 Last
Reload : (none) Last
successful upload
: 2024-05-13 05:37:19 Last
attempted upload
: 2024-05-13 05:37:19 Total
Megabytes of XML files uploaded so far : 0.08 Number of XML
files pending upload : 3 Size of XML
files pending upload(MB) : 0 Available
disk space on upload filesystem :
44.15% Collection
Status :
Collections enabled Heartbeat
Status : Ok Last
attempted heartbeat to OMS
: 2024-05-13 05:36:42 Last
successful heartbeat to OMS
: 2024-05-13 05:36:42 Next
scheduled heartbeat to OMS
: 2024-05-13 05:37:43 --------------------------------------------------------------- Agent is
Running and Ready |
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