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标签归档:12c oradebug poke
oradebug poke ORA-32521/ORA-32519故障解决
最近有不少朋友咨询12.1.0.2及其以后的版本使用oradebug去修改scn失败,这里做了一个测试正常情况下确实无法修改(oradebug poke报 ORA-32519 或者 ORA-32521) ,这里进行了一系列修改测试最后修改成功.
开发的小工具:修改oracle scn小工具(patch scn),可以快速解决该问题
数据库版本
SQL> select * from v$version; BANNER CON_ID -------------------------------------------------------------------------------- ---------- Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production 0 PL/SQL Release 12.1.0.2.0 - Production 0 CORE 12.1.0.2.0 Production 0 TNS for 64-bit Windows: Version 12.1.0.2.0 - Production 0 NLSRTL Version 12.1.0.2.0 - Production 0
oradebug poke测试
SQL> oradebug setmypid 已处理的语句 SQL> oradebug DUMPvar SGA kcsgscn_ kcslf kcsgscn_ [14C8D6270, 14C8D62A0) = 009EA333 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 4C8D5CF0 00000001 SQL> oradebug poke 0x14C8D6274 4 0x00000001 ORA-32521: 对 ORADEBUG 命令 进行语法分析时出错 --或者该提示 SQL> oradebug setmypid 已处理的语句 SQL> oradebug DUMPvar SGA kcsgscn_ kcslf kcsgscn_ [14C8D6270, 14C8D62A0) = 009EAE3D 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 4C8D5CF0 00000001 SQL> oradebug poke 0x14C8D6274 4 0x0000000a ORA-32519: 权限不足, 无法执行 ORADEBUG 命令: execution of ORADEBUG commands is disabled for this instance
通过测试确定oradebug正常情况无法执行poke,不是提示ORA-32521就是提示ORA-32519错误导致scn无法修改.
通过一些修改之后oradebug 修改scn
SQL> select dbid, name,open_mode, 2 created created, 3 open_mode, log_mode, 4 checkpoint_change# as checkpoint_change#, 5 controlfile_type ctl_type, 6 controlfile_created ctl_created, 7 controlfile_change# as ctl_change#, 8 controlfile_time ctl_time, 9 resetlogs_change# as resetlogs_change#, 10 resetlogs_time resetlogs_time 11 from v$database; DBID NAME OPEN_MODE CREATED OPEN_MODE LOG_MODE ---------- ---------------------------------------------------- -------------------- -------------- ------------ ------------ CHECKPOINT_CHANGE# CTL_TYP CTL_CREATED CTL_CHANGE# CTL_TIME RESETLOGS_CHANGE# RESETLOGS_TIME ------------------ ------- -------------- ----------- -------------- ----------------- -------------- 1504692401 XIFENFEI READ WRITE 16-8月 -15 READ WRITE ARCHIVELOG 10407853 CURRENT 16-8月 -15 10408361 07-7月 -16 1 16-8月 -15 SQL> select con_id,file#,checkpoint_change# from v$datafile_header; CON_ID FILE# CHECKPOINT_CHANGE# ---------- ---------- ------------------ 1 1 10407853 2 2 9457324 1 3 10407853 2 4 9457324 1 5 10407853 1 6 10407853 3 7 10407853 3 8 10407853 3 9 10407853 4 10 9559964 4 11 9559964 4 12 9559964 3 13 10407853 已选择 13 行。 SQL> shutdown abort; ORACLE 例程已经关闭。 SQL> startup ORACLE 例程已经启动。 Total System Global Area 3221225472 bytes Fixed Size 3837232 bytes Variable Size 838861520 bytes Database Buffers 2365587456 bytes Redo Buffers 12939264 bytes 数据库装载完毕。 SQL> oradebug setmypid 已处理的语句 SQL> oradebug DUMPvar SGA kcsgscn_ kcslf kcsgscn_ [14BE16270, 14BE162A0) = 009ED5C6 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 4BE15CF0 00000001 SQL> oradebug poke 0x14BE16274 4 0x0001 BEFORE: [14BE16274, 14BE16276) = 0000 AFTER: [14BE16274, 14BE16276) = 0001 SQL> alter database open; 数据库已更改。 SQL> select dbid, name,open_mode, 2 created created, 3 open_mode, log_mode, 4 checkpoint_change# as checkpoint_change#, 5 controlfile_type ctl_type, 6 controlfile_created ctl_created, 7 controlfile_change# as ctl_change#, 8 controlfile_time ctl_time, 9 resetlogs_change# as resetlogs_change#, 10 resetlogs_time resetlogs_time 11 from v$database; DBID NAME OPEN_MODE CREATED OPEN_MODE LOG_MODE ---------- ---------------------------------------------------- -------------------- -------------- ----------- ------------ CHECKPOINT_CHANGE# CTL_TYP CTL_CREATED CTL_CHANGE# CTL_TIME RESETLOGS_CHANGE# RESETLOGS_TIME ------------------ ------- -------------- ----------- -------------- ----------------- -------------- 1504692401 XIFENFEI READ WRITE 16-8月 -15 READ WRITE ARCHIVELOG 4305478053 CURRENT 16-8月 -15 4305478245 07-7月 -16 1 16-8月 -15 SQL> select con_id,file#,checkpoint_change# from v$datafile_header; CON_ID FILE# CHECKPOINT_CHANGE# ---------- ---------- ------------------ 1 1 4305478053 2 2 9457324 1 3 4305478053 2 4 9457324 1 5 4305478053 1 6 4305478053 3 7 4305478053 3 8 4305478053 3 9 4305478053 4 10 9559964 4 11 9559964 4 12 9559964 3 13 4305478053 已选择 13 行。 SQL> select con_id,file#,checkpoint_change# from v$datafile; CON_ID FILE# CHECKPOINT_CHANGE# ---------- ---------- ------------------ 1 1 4305478053 2 2 9457324 1 3 4305478053 2 4 9457324 1 5 4305478053 1 6 4305478053 3 7 4305478053 3 8 4305478053 3 9 4305478053 4 10 9559964 4 11 9559964 4 12 9559964 3 13 4305478053 已选择 13 行。
通过上述测试证明scn已经被完美修改.证明我们已经具备了不使用bbed的情况下推进12.1.0.2版本的scn问题,为12c的一系列需要推scn的恢复提供完美技术支持.
发表在 Oracle备份恢复
标签为 12c oradebug poke, ORA-32519, ORA-32521, oradebug ORA-32519, oradebug poke, oradebug scn
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