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CRS Startup : Oracle ORA-21561 : OID generation failed

After long time, I have been writing back now. I will running through a series of posts from now on Grid infrastructure issues.

The first one is Oracle ORA-21561 : OID generation failed

While starting crs / Adding the node the crs alert log will show the error Oracle ORA-21561 : OID generation failed

This is due to misconfiguration in following files

1. /etc/hosts file is not having proper entries i.e localhost and the IP address that should resolve to dns and local
2. Local resolution is not working, that means when you nslookup rac1, the answer should be from 127.0.0.1
3. /etc/resolv.conf should have match in all nodes

-Thanks
Geek DBAGeek DBA

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