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最近发表
- ORA-00600: internal error code, arguments: [16703], [1403], [4] 原因
- 最近遇到几起ORA-600 16703故障(tab$被清空),请引起重视
- ORA-600 2662快速恢复之Patch scn工具
- TNS-12518: TNS:listener could not hand off client connection
- ora.storage无法启动报ORA-12514故障处理
- 断电引起文件scn异常数据库恢复
- ORA-16188: LOG_ARCHIVE_CONFIG settings inconsistent with previously started instance
- .[hudsonL@cock.li].mkp勒索加密数据库完美恢复
- 模拟带库实现rman远程备份
- 又一例:ORA-600 kclchkblk_4和2662故障
- Oracle误删除数据文件恢复
- Oracle 19C 备库DML重定向—DML Redirection
- ORA-01595/ORA-600 4194处理
- 从ORA-00283 ORA-16433报错开始恢复
- 近期又遇到ORA-600 16703和ORA-702故障
- RECOVER_YOUR_DATA勒索恢复
- ORA-01033: ORACLE initialization or shutdown in progress 故障处理
- Oracle 19c/21c最新patch信息-202401
- 存储故障,强制拉库报ORA-600 kcbzib_kcrsds_1处理
- ORA-600 kcrf_resilver_log_1故障处理
分类目录归档:Oracle Bug
11.2.0.3 adg库因 bug 16427872 导致smon占用大量cpu
检查数据库发现客户有一套核心的ADG库smon进程负载异常,单进程一直持有cpu 100%
[oracle@q9adg01 trace]$ top -c top - 14:00:14 up 83 days, 21:39, 4 users, load average: 10.34, 11.55, 11.25 Tasks: 1162 total, 3 running, 1157 sleeping, 0 stopped, 2 zombie Cpu(s): 1.7%us, 1.2%sy, 0.0%ni, 86.2%id, 10.7%wa, 0.0%hi, 0.1%si, 0.0%st Mem: 264253752k total, 200445076k used, 63808676k free, 757684k buffers Swap: 33554424k total, 0k used, 33554424k free, 6529220k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 5707 oracle 25 0 150g 20m 16m R 99.9 0.0 14273:00 ora_smon_q9db1 5285 oracle 16 0 13564 1952 820 R 31.5 0.0 0:02.49 top -c 5713 oracle 18 0 150g 20m 17m S 5.3 0.0 410:01.33 ora_asmb_q9db1 5821 oracle 15 0 150g 23m 17m S 5.3 0.0 4883:29 ora_lck0_q9db1 7596 oracle 15 0 150g 69m 37m S 5.3 0.0 5368:28 ora_pr00_q9db1 [oracle@q9adg02 ~]$ top -c top - 14:00:03 up 84 days, 19:36, 3 users, load average: 6.46, 6.96, 6.76 Tasks: 1045 total, 5 running, 1040 sleeping, 0 stopped, 0 zombie Cpu(s): 1.8%us, 1.0%sy, 0.0%ni, 93.4%id, 3.7%wa, 0.0%hi, 0.1%si, 0.0%st Mem: 264253752k total, 196879216k used, 67374536k free, 425320k buffers Swap: 33554424k total, 0k used, 33554424k free, 4727836k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 11615 oracle 25 0 150g 16m 14m R 100.0 0.0 14272:55 ora_smon_q9db2 18173 oracle 16 0 150g 73m 37m D 18.6 0.0 24:33.91 oracleq9db2 (LOCAL=NO) 6561 oracle 15 0 150g 31m 25m R 12.2 0.0 0:48.50 oracleq9db2 (LOCAL=NO)
数据库版本和patch信息
14:18:05 sys@Q9DB>select * from v$version; BANNER -------------------------------------------------------------------------------- Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production PL/SQL Release 11.2.0.3.0 - Production CORE 11.2.0.3.0 Production TNS for Linux: Version 11.2.0.3.0 - Production NLSRTL Version 11.2.0.3.0 - Production SQL> SELECT INST_ID,DATABASE_ROLE,OPEN_MODE FROM GV$DATABASE; INST_ID DATABASE_ROLE OPEN_MODE ---------- ---------------- -------------------- 2 PHYSICAL STANDBY READ ONLY WITH APPLY 1 PHYSICAL STANDBY READ ONLY WITH APPLY SQL >select inst_id,STARTUP_TIME from gv$instance; INST_ID STARTUP_T ---------- --------- 2 01-NOV-13 1 01-NOV-13 [oracle@q9adg01 trace]$ /u01/app/oracle/product/11.2.0/db_1/OPatch/opatch lspatches 16056266;Database Patch Set Update : 11.2.0.3.6 (16056266) 16315641;Grid Infrastructure Patch Set Update : 11.2.0.3.6 (16083653)
SYSAUX表空间增加数据文件
SQL> select ts# from v$tablespace where name='SYSAUX'; TS# ---------- 2 SQL> select file#,name,creation_time from v$datafile where ts#=2; FILE# NAME CREATION_ ---------- -------------------------------------------------- --------- 3 +DATA/q9db/datafile/sysaux.1412.818566605 12-MAR-08 151 +DATA/q9db/datafile/sysaux.1431.818566885 26-MAR-12 221 +DATA/q9db/datafile/sysaux.828.818547945 16-APR-12 1744 +DATA/q9db_adg/datafile/sysaux.2050.835459505 29-DEC-13
核对数据库确实在2013年12月29日对SYSAUX表空间增加了数据文件而且未重启数据库,触发Bug 16427872 Standby SMON spins on CPU after add/drop SYSAUX datafile on primary
Bug 16427872 Standby SMON spins on CPU after add/drop SYSAUX datafile on primary
在12.1.0.1中修复,在未修复前增加/删除sysaux的数据文件后,通过重启实例来解决该问题