Have you received this error on OMS 12.1.0.3? "Metric evaluation error start – Get dynamic property error," After performing some research on MOS and a confirmation SR, it seems related to Bug 17575631 CLUSTER DB HOME PAGE ERRORS- REGIONS FETCH REAL TIME DATA WILL NOT BE DISPLAYED on Database Plugin. It’s solved in OMS 12.1.0.4 and also in 12.1.0.5.1 EM Database Plugin Bundle patch. However, MOS doesn't have any quick fixes to avoid alarms, so I'll show you how to work around it. Before we begin, I recommend you read those MOS documents:
To work around it temporarily, you can: – Stop and start the agent. – List targets on the host. – Reload dynamic properties for problematic target from the above list. Check out the example below: Example of an error from OEM:
Host=dbserver.domain.com Target type=Cluster Database Target name=proddb Categories=Availability Message=Metric evaluation error start - Get dynamic property error,Dynamic Category property error,Computation of a critical dynamic property failed. Retries Completed. Severity=Critical Event reported time=Aug 9, 2019 1:26:29 PM PST Target Lifecycle Status=Production Line of Business=Exadata Location=MyDC Operating System=Linux Platform=x86_64 Associated Incident Id=65566 Associated Incident Status=New Associated Incident Owner= Associated Incident Acknowledged By Owner=No Associated Incident Priority=None Associated Incident Escalation Level=0 Event Type=Target Availability Event name=Status Availability status=Availability Evaluation Error Rule Name=****** Rule Owner=SYSMAN
[oracle@dbserver ~]$ emctl stop agent Oracle Enterprise Manager Cloud Control 12c Release 3 Copyright (c) 1996, 2013 Oracle Corporation. All rights reserved. Stopping agent ..... stopped. [oracle@dbserver ~]$ emctl clearstate agent Oracle Enterprise Manager Cloud Control 12c Release 3 Copyright (c) 1996, 2013 Oracle Corporation. All rights reserved. EMD clearstate completed successfully [oracle@dbserver ~]$ emctl start agent Oracle Enterprise Manager Cloud Control 12c Release 3 Copyright (c) 1996, 2013 Oracle Corporation. All rights reserved. Starting agent ................. started. [oracle@dbserver ~]$ emctl upload agent Oracle Enterprise Manager Cloud Control 12c Release 3 Copyright (c) 1996, 2013 Oracle Corporation. All rights reserved. --------------------------------------------------------------- EMD upload completed successfully [oracle@dbserver ~]$ emctl config agent listtargets Oracle Enterprise Manager Cloud Control 12c Release 3 Copyright (c) 1996, 2013 Oracle Corporation. All rights reserved. [dbserver.domain.com, host] [dbserver.domain.com:3872, oracle_emd] [dbserver-ilom.domain.com, oracle_exa_ilom] [dbserver-ilom.domain.com, oracle_exa_ilom] [dbserver-pdub.domain.com, oracle_exa_pdu] [dbserver-pdua0.domain.com, oracle_exa_pdu] [dbserver.domain.com, oracle_exadata] [dbserver.domain.com, oracle_exadata] [dbserver.domain.com, oracle_exadata] [dbserver.domain.com, oracle_exadata] [Ora11g_gridinfrahome2_1_dbserver, oracle_home] [dbserver-ibb0.domain.com, oracle_ibswitch] [dbserver-ibs0.domain.com, oracle_ibswitch] [agent12c1_4_dbserver, oracle_home] [oraproddb_Home_2_dbserver, oracle_home] [oraentsp_Home_3_dbserver, oracle_home] [LISTENER_dbserver.domain.com, oracle_listener] [+ASM3_dbserver.domain.com, osm_instance] [has_dbserver.domain.com, has] [proddb_proddb1, oracle_database] [proddb, rac_database] [dbserver-cluster, cluster] [LISTENER_SCAN2_dbserver-cluster, oracle_listener] [proddb_proddb1, oracle_database] [proddb, rac_database] [oracle@dbserver ~]$ emctl reload agent dynamicproperties proddb:rac_database Oracle Enterprise Manager Cloud Control 12c Release 3 Copyright (c) 1996, 2013 Oracle Corporation. All rights reserved. --------------------------------------------------------------- EMD recompute dynprops completed successfully [oracle@dbserver ~]$
Hope this helps.
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