2025年oracle txn,oracle 12.1的那些坑

科技前沿 • 2025-03-28 13:09 • 阅读 51

大家好，我是讯享网，很高兴认识大家。

1 数据库不重启也会把一些启动信息打在日志上，让你怀疑这库是不是无厘头重启，最重要的是没有其他的相关日志，让你怀疑是不是不要干DBA这行了；

1.1禁止参数信息dump至Alert日志中

_log_segment_dump_parameter=FALSE

1.2禁止补丁信息dump至Alert日志中

_log_segment_dump_patch=FALSE

参见:12c Alert Log Appears To Show Unexpected Instance Restart (文档 ID .1)

2　ORA-600 [K2GTEGET: PDBID] AND ORA-600 [KPDBSWITCHPRERESTORE: TXN］

看日志是调用dbms_advisor报的错

[TOC00004]----- PL/SQL Stack ---------- PL/SQL Call Stack -----object line objecthandle number name0x1c582f4f8 12825 package body SYS.DBMS_SQLTUNE_INTERNAL0x1b5c1e8c8 7 SYS.WRI$_ADV_SQLTUNE0x17e85ca58 602 package body SYS.PRVT_ADVISOR0x17e85ca58 2678 package body SYS.PRVT_ADVISOR0x1cca00190 241 package body SYS.DBMS_ADVISOR0x1ccf8d670 937 package body SYS.DBMS_SQLTUNE0x1b8d0af08 19 anonymous block

参见：

Bug : ORA-600 [KPDBSWITCHPRERESTORE: TXN]

讯享网

Bug : ORA-600 [K2GTEGET: PDBID] AND ORA-600 [KPDBSWITCHPRERESTORE: TXN]

参见文档说明

ORA-00600: Internal Error Code,arguments: [k2gteget: Pdbid] & Arguments: [kpdbSwitchPreRestore: Txn] (文档 ID .1)

解决办法：

１　升级到oracle 12.2

2 打补丁Patch 或者Ｏracle Database 12c Release 12.1.0.2.

3 12c的多路径ORA-600 [krr_process_read_error_2]

临时解决办法：ALTER SYSTEM SET "_use_single_log_writer"=TRUE SID='*' SCOPE=SPFILE;

Oracle 12c introduces a new default feature of using multiple LGWRs which may lead to DEADLOCK / Database Hang or ORA-742 "Log read detects lost write" or ORA-600 [kcrfrgv_nextlwn_scn] during instance OPEN or ORA-600 [krr_process_read_error_2] during Recovery on IBM AIX and potentially on HPUX Itanium 64bit.

参考：

ALERT: Bug Database hang or may fail to OPEN in 12c IBM AIX or HPUX Itanium - ORA-742, DEADLOCK or ORA-600 [kcrfrgv_nextlwn_scn] ORA-600 [krr_process_read_error_2] (文档 ID .1)

2025年oracle txn,oracle 12.1的那些坑

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