Oracle 12.2 RAC報錯ora-600 ora-07445怎么辦

這篇文章主要介紹Oracle 12.2 RAC報錯ora-600 ora-07445怎么辦，文中介紹的非常詳細，具有一定的參考價值，感興趣的小伙伴們一定要看完！

報錯如下：
Use ADRCI or Support Workbench to package the incident.
See Note 411.1 at My Oracle Support for error and packaging details.
2017-11-22 13:56:36.095000 +08:00
Exception [type: SIGSEGV, Invalid permissions for mapped object] [ADDR:0x7F358CE5F7E3] [PC:0xAB3E99F, evaudc()+127] [flags: 0x0, count: 1]
Errors in file /oracle/app/db/diag/rdbms/tsscdb/TSSCDB2/trace/TSSCDB2_ora_59052.trc  (incident=122179) (PDBNAME=TSSDB):
ORA-07445: exception encountered: core dump [evaudc()+127] [SIGSEGV] [ADDR:0x7F358CE5F7E3] [PC:0xAB3E99F] [Invalid permissions for mapped object] []
Use ADRCI or Support Workbench to package the incident.
See Note 411.1 at My Oracle Support for error and packaging details.
2017-11-22 13:57:34.132000 +08:00
Exception [type: SIGSEGV, Invalid permissions for mapped object] [ADDR:0x7F7C412B539A] [PC:0xAB3E99F, evaudc()+127] [flags: 0x0, count: 1]
Errors in file /oracle/app/db/diag/rdbms/tsscdb/TSSCDB2/trace/TSSCDB2_ora_63258.trc  (incident=122617) (PDBNAME=TSSDB):
ORA-07445: exception encountered: core dump [evaudc()+127] [SIGSEGV] [ADDR:0x7F7C412B539A] [PC:0xAB3E99F] [Invalid permissions for mapped object] []
Use ADRCI or Support Workbench to package the incident.
See Note 411.1 at My Oracle Support for error and packaging details.
2017-11-22 13:57:48.377000 +08:00
Exception [type: SIGSEGV, Invalid permissions for mapped object] [ADDR:0x7F7B710B10E2] [PC:0xAB3E99F, evaudc()+127] [flags: 0x0, count: 1]
DDE: Problem Key 'ORA 7445 [evaudc]' was completely flood controlled (0x6)
Further messages for this problem key will be suppressed for up to 10 minutes
2017-11-22 13:58:40.155000 +08:00
Exception [type: SIGSEGV, Invalid permissions for mapped object] [ADDR:0x7F096426B19D] [PC:0xAB3E99F, evaudc()+127] [flags: 0x0, count: 1]
Errors in file /oracle/app/db/diag/rdbms/tsscdb/TSSCDB2/trace/TSSCDB2_ora_63564.trc  (incident=121985) (PDBNAME=TSSDB):
ORA-07445: exception encountered: core dump [evaudc()+127] [SIGSEGV] [ADDR:0x7F096426B19D] [PC:0xAB3E99F] [Invalid permissions for mapped object] []
Use ADRCI or Support Workbench to package the incident.
See Note 411.1 at My Oracle Support for error and packaging details.
2017-11-22 13:59:33.141000 +08:00
Exception [type: SIGSEGV, Invalid permissions for mapped object] [ADDR:0x7FB8400F327B] [PC:0xAB3E99F, evaudc()+127] [flags: 0x0, count: 1]
Errors in file /oracle/app/db/diag/rdbms/tsscdb/TSSCDB2/trace/TSSCDB2_ora_63999.trc  (incident=121796) (PDBNAME=TSSDB):
ORA-07445: exception encountered: core dump [evaudc()+127] [SIGSEGV] [ADDR:0x7FB8400F327B] [PC:0xAB3E99F] [Invalid permissions for mapped object] []
Use ADRCI or Support Workbench to package the incident.
See Note 411.1 at My Oracle Support for error and packaging details.

通過對上述trace信息的檢查發現除了SQL auto adviser外，還有一條SQL語句出發了該問題，該sql 語句在plsql或者服務器端執行都會出現如下報錯：
    ORA-03113: 通信通道的文件結尾
    會話 ID: 191 序列號: 1
同時出發ora-07445報錯。
通過netalink查看發現應該是12C的一個bug，通過修改如下參數可解決：

ora-07445: exception encountered: core dump [evaudc()+180] Rediscovery Notes When query has all of below:
1) special ordering operator in outer query(example: ORDER BY ...DESC/ASC
NULLS LAST)
2) query having view on which view merge takes place
3) there is FI usage i.e. order by column is fetched from Functional index Workaround alter session set "_replace_virtual_columns"=false;
or
alter session set "_simple_view_merging"=false;
alter session set "complex_view_merging"=false;

以上是“Oracle 12.2 RAC報錯ora-600 ora-07445怎么辦”這篇文章的所有內容，感謝各位的閱讀！希望分享的內容對大家有幫助，更多相關知識，歡迎關注億速云行業資訊頻道！