When startup a RAC database or its instances, and get “ORA-00449: background process ‘RBAL’ unexpectedly terminated with error 448”.
Checked all cluster resources are ONLINE.
SQL> startup ORA-00449: background process 'RBAL' unexpectedly terminated with error 448 SQL>
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[oracle@racnode1 ~]$ sqlplus / as sysdba SQL*Plus: Release 12.1.0.2.0 Production on Mon Jan 13 16:31:25 2020 Copyright (c) 1982, 2014, Oracle. All rights reserved. ERROR: ORA-12547: TNS:lost contact Enter user-name: ERROR: ORA-12547: TNS:lost contact
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There are many old problems and their incidents in OEM repository for many years. Here is an example of how to clear those problems by using emcli. Otherwise you might need log on to OEM console by clearing them from one target to another. Imagine your OEM repository might manage thousands of different kinds of targets.
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The Enterprise Manager Agent does not automatically clear those stateless alerts.
This post explains how to clean up stateless alerts, also provides shell scripts to generate commands to automatically clean all stateless alerts if possible.
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After RAC servers rebooted, or GI cluster restarted, scan listeners show offline on OEM. Now we explore how to resolve this issue here.
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