ORA-21561: OID generation failed
在工作中，使用sqlplus连接数据库
SQL> conn system/oracle@depdb1
ERROR:
ORA-21561: OID generation failed
出现该错误后，查看metalink
Connection Via 10.2.0.3 SQL*Net Fails With Error ORA-21561: OID Generation Failed [ID 559981.1]
Cause
Incorrect /etc/hosts mapping for the client machine or no mapping at all.Solution
Check the client's /.../hosts file and verify that the local node is correctly identified with a mapping for both the short and fully qualified name of the host.
同时检查自己的/etc/hosts文件，确实存在这个问题，修改/etc/hosts后问题解决
[@more@]来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/48010/viewspace-1031780/ ，如需转载，请注明出处，否则将追究法律责任。
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