分类目录归档：Oracle

DBMS_SESSION.set_context提示ORA-01031问题解决

发表于 2024 年 8 月 24 日 由 惜分飞

最近给客户把oracle数据库从11.2.0.3 aix平台迁移到19.23 linux平台,使用impdp+network_link 按照用户的方式处理,结果发现有一个程序运行异常
ORA-01031

ORA-01031: insufficient privileges通过程序跟踪确认是在调用以下部分异常

 DBMS_SESSION.set_context (
         'back_exec',
         'back_exec_log_no',
         v_back_exec_log_no
……

通过跟踪执行用户权限,确认EXECUTE ON SYS.DBMS_SESSION已经授权.做一个简单测试重现给问题:

SQL> show user;
USER 为 "SYS"

SQL> exec DBMS_SESSION.SET_CONTEXT('test_ctx', 'a', '1');
BEGIN DBMS_SESSION.SET_CONTEXT('test_ctx', 'a', '1'); END;

*
第 1 行出现错误:
ORA-01031: 权限不足
ORA-06512: 在 "SYS.DBMS_SESSION", line 114
ORA-06512: 在 line 1

SQL> GRANT EXECUTE ON SYS.DBMS_SESSION TO sys;

授权成功。

SQL> exec DBMS_SESSION.SET_CONTEXT('test_ctx', 'a', '1');
BEGIN DBMS_SESSION.SET_CONTEXT('test_ctx', 'a', '1'); END;

*
第 1 行出现错误:
ORA-01031: 权限不足
ORA-06512: 在 "SYS.DBMS_SESSION", line 114
ORA-06512: 在 line 1

基于这种情况,肯定不是权限问题,查询官方DBMS_SESSION.set_context部分描述
dbms_session.set_context

确认namespace:The namespace of the application context to be set, limited to 128 bytes. Exceeding the maximum permissible length will result in an error during the execution of the procedure.

SQL> create context test_ctx using sys.DBMS_SESSION;

上下文已创建。

SQL> exec DBMS_SESSION.SET_CONTEXT('test_ctx', 'a', '1');

PL/SQL 过程已成功完成。

官方有相关的执行例子:Example: Creating a Global Application Context that Uses a Client Session ID

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redo写丢失导致ORA-600 kcrf_resilver_log_1故障

发表于 2024 年 8 月 22 日 由 惜分飞

有一个客户硬件故障,做完硬件恢复之后,数据库启动报ORA-600 kcrf_resilver_log_1错误.
kcrf_resilver_log_1

Thu Aug 22 13:37:50 2024
alter database open
Beginning crash recovery of 1 threads
 parallel recovery started with 3 processes
Started redo scan
Errors in file e:\oracle\zy\diag\rdbms\orcl\orcl\trace\orcl_ora_1640.trc  (incident=9767):
ORA-00600: 内部错误代码, 参数: [kcrf_resilver_log_1], [0x7DCEBE020], [2], [], [], [], [], [], [], [], [], []
Incident details in: e:\oracle\zy\diag\rdbms\orcl\orcl\incident\incdir_9767\orcl_ora_1640_i9767.trc
Thu Aug 22 13:37:55 2024
Trace dumping is performing id=[cdmp_20240822133755]
Aborting crash recovery due to error 600
Errors in file e:\oracle\zy\diag\rdbms\orcl\orcl\trace\orcl_ora_1640.trc:
ORA-00600: 内部错误代码, 参数: [kcrf_resilver_log_1], [0x7DCEBE020], [2], [], [], [], [], [], [], [], [], []
Errors in file e:\oracle\zy\diag\rdbms\orcl\orcl\trace\orcl_ora_1640.trc:
ORA-00600: 内部错误代码, 参数: [kcrf_resilver_log_1], [0x7DCEBE020], [2], [], [], [], [], [], [], [], [], []

查询mos出现该问题的原因一般是由于redo log write lost导致
kcrf_resilver_log_1-9056657

这个问题恢复起来不难,一般就是尝试强制打开库,以前有过类似的恢复case:
ORA-600 kcrf_resilver_log_1故障处理
ORA-00600[kcrf_resilver_log_1]异常恢复

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硬件故障导致ORA-01242 ORA-01122等错误

发表于 2024 年 8 月 20 日 由 惜分飞

客户多个节点rac,早上反馈说有两个节点实例异常,需要分析原因,查看其中一个节点的数据库alert日志,发现是由于访问1399号文件异常报ORA-01242 ORA-01122等错误,导致实例crash

Mon Aug 19 20:48:02 2024
Read of datafile '+DATA/xifenfei_01-157.dbf' (fno 1399) header failed with ORA-01207
Rereading datafile 1399 header failed with ORA-01207
Errors in file /u01/app/oracle/diag/rdbms/xff/xff6/trace/xff6_ckpt_75582.trc:
ORA-01242: data file suffered media failure: database in NOARCHIVELOG mode
ORA-01122: database file 1399 failed verification check
ORA-01110: data file 1399: '+DATA/xifenfei_01-157.dbf'
ORA-01207: file is more recent than control file - old control file
Errors in file /u01/app/oracle/diag/rdbms/xff/xff6/trace/xff6_ckpt_75582.trc:
ORA-01242: data file suffered media failure: database in NOARCHIVELOG mode
ORA-01122: database file 1399 failed verification check
ORA-01110: data file 1399: '+DATA/xifenfei_01-157.dbf'
ORA-01207: file is more recent than control file - old control file
CKPT (ospid: 75582): terminating the instance due to error 1242
Mon Aug 19 20:48:02 2024
System state dump requested by (instance=6, osid=75582 (CKPT)), summary=[abnormal instance termination].
System State dumped to trace file /u01/app/oracle/diag/rdbms/xff/xff6/trace/xff6_diag_75520.trc
Termination issued to instance processes. Waiting for the processes to exit
Mon Aug 19 20:48:13 2024
ORA-1092 : opitsk aborting process

继续分析日志发现集群尝试拉起该实例,遭遇ORA-01186,ORA-01122无法启动成功

ALTER DATABASE OPEN /* db agent *//* {0:6:39} */
Mon Aug 19 20:49:34 2024
SUCCESS: diskgroup DATA was mounted
Mon Aug 19 20:49:34 2024
NOTE: dependency between database xff and diskgroup resource ora.DATA.dg is established
Mon Aug 19 20:50:41 2024
Picked broadcast on commit scheme to generate SCNs
Mon Aug 19 20:50:42 2024
Read of datafile '+DATA/xifenfei_01-157.dbf' (fno 1399) header failed with ORA-01207
Rereading datafile 1399 header failed with ORA-01207
Errors in file /u01/app/oracle/diag/rdbms/xff/xff6/trace/xff6_dbw0_29208.trc:
ORA-01186: file 1399 failed verification tests
ORA-01122: database file 1399 failed verification check
ORA-01110: data file 1399: '+DATA/xifenfei_01-157.dbf'
ORA-01207: file is more recent than control file - old control file
File 1399 not verified due to error ORA-01122

这个错误是数据库文件访问异常导致,根据经验,出现这种问题一般是由于底层异常导致,查看系统messages日志,发现有硬件磁盘报错

Aug 19 20:41:58 xff6 fcoemon: FC_HOST_EVENT 6894 at 1724071318 secs on host1:code 65535=vendor_unique datalen 32 data=512
Aug 19 20:41:58 xff6 kernel: sd 1:0:0:43: [sdas]  
Aug 19 20:41:58 xff6 kernel: Sense Key : Recovered Error [current] 
Aug 19 20:41:58 xff6 kernel: sd 1:0:0:43: [sdas]  
Aug 19 20:41:58 xff6 kernel: <<vendor>> ASC=0xe0 ASCQ=0x1ASC=0xe0 ASCQ=0x1
Aug 19 20:42:03 xff6 kernel: sd 1:0:0:43: [sdas]  
Aug 19 20:42:03 xff6 kernel: Sense Key : Recovered Error [current] 
Aug 19 20:42:03 xff6 kernel: sd 1:0:0:43: [sdas]  
Aug 19 20:42:03 xff6 kernel: <<vendor>> ASC=0xe0 ASCQ=0x1ASC=0xe0 ASCQ=0x1
Aug 19 20:42:03 xff6 fcoemon: FC_HOST_EVENT 6895 at 1724071323 secs on host1:code 65535=vendor_unique datalen 32 data=512
Aug 19 20:42:07 xff6 fcoemon: FC_HOST_EVENT 6896 at 1724071327 secs on host1:code 65535=vendor_unique datalen 32 data=512
Aug 19 20:42:07 xff6 kernel: sd 1:0:0:44: [sdat]  
Aug 19 20:42:07 xff6 kernel: Sense Key : Recovered Error [current] 
Aug 19 20:42:07 xff6 kernel: sd 1:0:0:44: [sdat]  
Aug 19 20:42:07 xff6 kernel: <<vendor>> ASC=0xe0 ASCQ=0x1ASC=0xe0 ASCQ=0x1
Aug 19 20:42:12 xff6 fcoemon: FC_HOST_EVENT 6897 at 1724071332 secs on host1:code 65535=vendor_unique datalen 32 data=512
Aug 19 20:42:12 xff6 kernel: sd 1:0:0:44: [sdat]  
Aug 19 20:42:12 xff6 kernel: Sense Key : Recovered Error [current] 
Aug 19 20:42:12 xff6 kernel: sd 1:0:0:44: [sdat]  
Aug 19 20:42:12 xff6 kernel: <<vendor>> ASC=0xe0 ASCQ=0x1ASC=0xe0 ASCQ=0x1
Aug 19 20:42:25 xff6 fcoemon: FC_HOST_EVENT 6898 at 1724071345 secs on host1:code 65535=vendor_unique datalen 32 data=512
Aug 19 20:42:25 xff6 kernel: sd 1:0:0:42: [sdar]  
Aug 19 20:42:25 xff6 kernel: Sense Key : Recovered Error [current] 
Aug 19 20:42:25 xff6 kernel: sd 1:0:0:42: [sdar]  
Aug 19 20:42:25 xff6 kernel: <<vendor>> ASC=0xe0 ASCQ=0x1ASC=0xe0 ASCQ=0x1
Aug 19 20:42:41 xff6 fcoemon: FC_HOST_EVENT 6899 at 1724071361 secs on host1:code 65535=vendor_unique datalen 32 data=512
Aug 19 20:42:41 xff6 kernel: sd 1:0:0:42: [sdar]  
Aug 19 20:42:41 xff6 kernel: Sense Key : Recovered Error [current] 
Aug 19 20:42:41 xff6 kernel: sd 1:0:0:42: [sdar]  
Aug 19 20:42:41 xff6 kernel: <<vendor>> ASC=0xd0 ASCQ=0x6ASC=0xd0 ASCQ=0x6
Aug 19 20:42:41 xff6 fcoemon: FC_HOST_EVENT 6900 at 1724071361 secs on host1:code 65535=vendor_unique datalen 32 data=512
Aug 19 20:42:41 xff6 kernel: sd 1:0:0:41: [sdaq]  
Aug 19 20:42:41 xff6 kernel: Sense Key : Recovered Error [current] 
Aug 19 20:42:41 xff6 kernel: sd 1:0:0:41: [sdaq]  
Aug 19 20:42:41 xff6 kernel: <<vendor>> ASC=0x95 ASCQ=0x1ASC=0x95 ASCQ=0x1
Aug 19 20:42:41 xff6 kernel: sd 1:0:0:41: [sdaq]  
Aug 19 20:42:41 xff6 kernel: Sense Key : Recovered Error [current] 
Aug 19 20:42:41 xff6 kernel: sd 1:0:0:41: [sdaq]  
Aug 19 20:42:41 xff6 kernel: <<vendor>> ASC=0xd0 ASCQ=0x6ASC=0xd0 ASCQ=0x6
Aug 19 20:42:41 xff6 fcoemon: FC_HOST_EVENT 6901 at 1724071361 secs on host1:code 65535=vendor_unique datalen 32 data=512
Aug 19 20:42:53 xff6 fcoemon: FC_HOST_EVENT 6902 at 1724071373 secs on host1:code 65535=vendor_unique datalen 32 data=512
Aug 19 20:42:53 xff6 kernel: sd 1:0:0:41: [sdaq]  
Aug 19 20:42:53 xff6 kernel: Sense Key : Recovered Error [current] 
Aug 19 20:42:53 xff6 kernel: sd 1:0:0:41: [sdaq]  
Aug 19 20:42:53 xff6 kernel: <<vendor>> ASC=0x95 ASCQ=0x1ASC=0x95 ASCQ=0x1
Aug 19 20:43:03 xff6 kernel: sd 1:0:0:40: [sdap]  
Aug 19 20:43:03 xff6 kernel: Sense Key : Recovered Error [current] 
Aug 19 20:43:03 xff6 kernel: sd 1:0:0:40: [sdap]  
Aug 19 20:43:03 xff6 kernel: <<vendor>> ASC=0x95 ASCQ=0x1ASC=0x95 ASCQ=0x1
Aug 19 20:43:03 xff6 fcoemon: FC_HOST_EVENT 6903 at 1724071383 secs on host1:code 65535=vendor_unique datalen 32 data=512
Aug 19 20:43:03 xff6 fcoemon: FC_HOST_EVENT 6904 at 1724071383 secs on host1:code 65535=vendor_unique datalen 32 data=512
Aug 19 20:43:03 xff6 fcoemon: FC_HOST_EVENT 6905 at 1724071383 secs on host1:code 65535=vendor_unique datalen 32 data=512
Aug 19 20:43:03 xff6 kernel: sd 1:0:0:43: [sdas]  
Aug 19 20:43:03 xff6 kernel: Sense Key : Recovered Error [current] 
Aug 19 20:43:03 xff6 kernel: sd 1:0:0:43: [sdas]  
Aug 19 20:43:03 xff6 kernel: <<vendor>> ASC=0x95 ASCQ=0x1ASC=0x95 ASCQ=0x1
Aug 19 20:49:26 xff6 kernel: scsi_verify_blk_ioctl: 683 callbacks suppressed

客户进一步分析是由于昨天存储坏了一块盘,然后热备盘顶上了,但是不知道什么原因出现了文件访问异常,可能和当时的rebuild过程有关系.由于客户是rac环境,还有部分剩余节点运行正常,对于异常节点直接启动库成功
20240820-182825

节点写入数据报ORA-01187: cannot read from file because it failed verification tests错误
ora-01187
在所有节点通过执行ALTER SYSTEM CHECK DATAFILES,然后所有节点操作正常
check_datafile
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