ORA-08103: object no longer exists
一个数据仓库数据库，前端ETL job近期总是遭遇这个报错。每次报错后，analyze相关表，会复现报错。flush buffer_cache之后，analyze恢复正常，ETL job也恢复。dbv查了相关的datafile，都是没问题的。
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Errors in file e:\oracle\product\10.2.0\admin\cdw\bdump\cdw_j001_5912.trc:
ORA-08103: object no longer exists
GATHER_STATS_JOB: GATHER_TABLE_STATS('"XXXXX"','"table"','""', ...)
ORA-08103: object no longer exists
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在analyze时，生成一个8103 trace file，里面有unknown ,corrupt字段。有人遇到过类似的吗？
BH (0000000ACAFEDDE8) file#: 11 rdba: 0x02d57c59 (11/1408089) class: 1 ba: 0000000ACAE1A000
set: 50 blksize: 8192 bsi: 0 set-flg: 2 pwbcnt: 12266
dbwrid: 1 obj: 55828 objn: 55828 tsn: 6 afn: 11
hash: lru:
ckptq: fileq: objq:
use: wait:
st: XCURRENT md: SHR tch: 0
flags:
LRBA: HSCN: HSUB:
Using State Objects
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SO: 00000011DBF28A38, type: 24, owner: 0000001209378EA0, flag: INIT/-/-/0x00
(buffer) (CR) PR: 000000120425E0D8 FLG: 0x100002
class bit: 0000000000000000
kcbbfbp:
where: kdgwh01: kdgpnb, why: 0
buffer tsn: 6 rdba: 0x02d57c59 (11/1408089)
scn: 0x090a.9a521117 seq: 0x01 flg: 0x06 tail: 0x11170601
frmt: 0x01 chkval: 0xda4f type: 0x2b=unknown
Hex dump of corrupt header 4 = CORRUPT
Dump of memory from 0x0000000ACAE1A000 to 0x0000000ACAE1A014
ACAE1A000 7F87312B 02D57C59 9A521117 0601090A [+1..Y|....R.....]
ACAE1A010 0000DA4F
Hex dump of block: st=4, typ_found=0
Dump of memory from 0x0000000ACAE1A000 to 0x0000000ACAE1C000
//
很头疼，每次都是flush buffer也不是办法啊。上次出现类似情况，5个月之前。
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