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Healthcheck Metric failing for a 10.2.0.4 Target Database with 10.2.0.4 Agent (Doc ID 602633.1)

Last updated on MARCH 12, 2021

Applies to:

Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
HP-UX PA-RISC (64-bit)
IBM AIX on POWER Systems (64-bit)
Oracle Solaris on SPARC (64-bit)
HP-UX Itanium
Microsoft Windows x64 (64-bit)
Linux x86-64
Linux Itanium

Symptoms

Using a 10.2.0.4 Grid Agent to monitor a 10.2.0.4 Database.
The 10.2.0.4 Agent version is certified to monitor a 10.2.0.4 Database.

The <AGENT_HOME>/sysman/log/emagent.trc shows that the health_check metric is repeatedly failing for this database :

Repeated failure while executing this metric can cause the Agent to re-start, as it runs out of file handlers at the OS level.

 -  The database is a 64 bit installation but emagent executable is of 32 bit installation though the
64 bit agent software is installed.
-   Re-starting the database to create this hc_<SID>.dat file does not help in resolving the Healthcheck Metrics error. 
-  The <DATABASE_OH>/dbs/hc_<SID>.dat file has sufficient permissions to be read by the agent 

Changes

Database and Agent have been upgraded to 10.2.0.4 from a lower version.
It is possible that when the Database / Agent were at 10.2.0.3 (or below), this metric was not failing.

Cause

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In this Document
Symptoms
Changes
Cause
Solution
 For Sun Solaris SPARC (64-bit), HP-UX PA-RISC (64-bit), IBM AIX Based 
Systems (64-bit) , HP-UX Itanium
 For Linux Itanium Operating System
 Workaround :
References

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