分类目录归档:Oracle备份恢复

ORA-00600[kcratr1_lostwrt]/ORA-00600[3020]错误恢复

open数据库alert日志报ORA-00600[kcratr1_lostwrt]错误

Mon May 14 14:57:28 2012
ALTER DATABASE OPEN
Mon May 14 14:57:29 2012
Beginning crash recovery of 1 threads
Mon May 14 14:57:29 2012
Started redo scan
Mon May 14 14:57:29 2012
Errors in file d:\oracle\admin\cqgasold\udump\cqgasold_ora_504.trc:
ORA-00600: 内部错误代码,参数: [kcratr1_lostwrt], [], [], [], [], [], [], []

ORA-600 signalled during: alter database open...

查询相关SCN
同一个查询中SCN相同,省略

SQL> select file#,online_status "STATUS",to_char(change#,'9999999999999999') "SCN",
  2  To_char(time,'yyyy-mm-dd hh24:mi:ss')"TIME" from v$recover_file;

未选定行

SQL> select file#,to_char(checkpoint_change#,'999999999999999') "SCN",
  2  to_char(last_change#,'999999999999999')"STOP_SCN" from v$datafile;

     FILE# SCN              STOP_SCN                                            
---------- ---------------- ----------------                                    
         1       7842987188                                                     
         2       7842987188                                                     
         3       7842987188                                                     

SQL> select file#,to_char(checkpoint_change#,'9999999999999999') "SCN",
  2  to_char(RESETLOGS_CHANGE#,'9999999999999999') "RESETLOGS SCN"
  3  from v$datafile_header;

     FILE# SCN               RESETLOGS SCN                                      
---------- ----------------- -----------------                                  
         1        7842991811                 1                                  
         2        7842991811                 1                                  
         3        7842991811                 1                                  

这里看到奇怪现象datafile scn小于datafile_header scn,数据库异常断电一般来说也不会出现这样的情况,个人猜测是错误的恢复或者使用历史控制文件导致,对于这样的现状,我先尝试着使用using backup controlfile方式恢复,结果失败.估计控制文件有异常,本着先拉起库原则,重建控制文件.

进行完全恢复

SQL> recover database;
ORA-00283: 恢复会话因错误而取消
ORA-00600: 内部错误代码,参数: [3020], [8388617], [1], [23403], [25], [112],[], []
ORA-10567: Redo is inconsistent with data block (file# 2, block# 9)
ORA-10564: tablespace UNDOTBS1
ORA-01110: 数据文件 2: 'D:\ORACLE\ORADATA\CQGASOLD\UNDO_1.DBF'
ORA-10560: block type 'KTU SMU HEADER BLOCK'

尝试跳过坏块继续恢复

SQL> recover database allow 1 corruption;
ORA-00283: 恢复会话因错误而取消
ORA-00600: 内部错误代码,参数: [3020], [8388610], [1], [23403], [2264], [16],[], []
ORA-10567: Redo is inconsistent with data block (file# 2, block# 2)
ORA-10564: tablespace UNDOTBS1
ORA-01110: 数据文件 2: 'D:\ORACLE\ORADATA\CQGASOLD\UNDO_1.DBF'
ORA-10560: block type 'KTFB Bitmapped File Space Header'

使用dbv检查坏块数量

C:\>dbv file='d:\oracle\oradata\cqgasold\undo_1.dbf' blocksize=8192

DBVERIFY: Release 9.2.0.5.0 - Production on 星期二 5月 15 19:43:42 2012

Copyright (c) 1982, 2002, Oracle Corporation.  All rights reserved.

DBVERIFY - 验证正在开始 : FILE = d:\oracle\oradata\cqgasold\undo_1.dbf

DBV-00200: 块, dba 8388617, 已经标记为崩溃
汇入的页369 - 可能是介质损坏
***
Corrupt block relative dba: 0x00800171 (file 2, block 369)
Fractured block found during dbv:
Data in bad block -
 type: 2 format: 2 rdba: 0x00800171
 last change scn: 0x0001.d37c57db seq: 0x1 flg: 0x04
 consistency value in tail: 0x4e930260
 check value in block header: 0x8202, computed block checksum: 0x4e5f
 spare1: 0x0, spare2: 0x0, spare3: 0x0
***

汇入的页417 - 可能是介质损坏
***
Corrupt block relative dba: 0x008001a1 (file 2, block 417)
Fractured block found during dbv:
Data in bad block -
 type: 2 format: 2 rdba: 0x008001a1
 last change scn: 0x0001.d37c53d4 seq: 0x2 flg: 0x04
 consistency value in tail: 0x4b6b0201
 check value in block header: 0x6ae7, computed block checksum: 0x5abc
 spare1: 0x0, spare2: 0x0, spare3: 0x0
***
…………
--类此记录很多,我放弃了跳过坏块修复的方法

恢复过程中提示坏块数据库文件离线恢复

SQL> alter database datafile 'd:\oracle\oradata\cqgasold\undo_1.dbf' offline;

数据库已更改。

SQL> recover database;
完成介质恢复。
SQL> alter database open;
alter database open
*
ERROR 位于第 1 行:
ORA-00604: 递归 SQL 层 1 出现错误
ORA-00376: 此时无法读取文件 2
ORA-01110: 数据文件 2: 'D:\ORACLE\ORADATA\CQGASOLD\UNDO_1.DBF'

到了这一步,根据经验,数据库被open的可能性很多了,很有可能是open以后因为smon回滚导致数据库down

查看日志,屏蔽回滚段,完成恢复

Tue May 15 19:59:52 2012
alter database open
Tue May 15 19:59:52 2012
Beginning crash recovery of 1 threads
Tue May 15 19:59:52 2012
Started redo scan
Tue May 15 19:59:52 2012
Completed redo scan
 323 redo blocks read, 82 data blocks need recovery
Tue May 15 19:59:52 2012
Started recovery at
 Thread 1: logseq 23404, block 3, scn 0.0
Recovery of Online Redo Log: Thread 1 Group 4 Seq 23404 Reading mem 0
  Mem# 0 errs 0: F:\ORACLE\ORADATA\LOGCQGASOLD4.ORA
Tue May 15 19:59:52 2012
Completed redo application
Tue May 15 19:59:52 2012
Ended recovery at
 Thread 1: logseq 23404, block 326, scn 1.3548264979
 82 data blocks read, 82 data blocks written, 323 redo blocks read
Crash recovery completed successfully
Tue May 15 19:59:53 2012
Thread 1 advanced to log sequence 23405
Thread 1 opened at log sequence 23405
  Current log# 2 seq# 23405 mem# 0: D:\ORACLE\ORADATA\CQGASOLD\REDO02.LOG
Successful open of redo thread 1
Tue May 15 19:59:53 2012
SMON: enabling cache recovery
SMON: enabling tx recovery
Tue May 15 19:59:54 2012
Database Characterset is ZHS16GBK
Tue May 15 19:59:55 2012
replication_dependency_tracking turned off (no async multimaster replication found)
ORA-604 signalled during: alter database open...
Tue May 15 19:59:56 2012
SMON: about to recover undo segment 1
SMON: mark undo segment 1 as needs recovery
SMON: about to recover undo segment 2
SMON: mark undo segment 2 as needs recovery
SMON: about to recover undo segment 3
SMON: mark undo segment 3 as needs recovery
SMON: about to recover undo segment 4
SMON: mark undo segment 4 as needs recovery
SMON: about to recover undo segment 5
SMON: mark undo segment 5 as needs recovery
SMON: about to recover undo segment 6
SMON: mark undo segment 6 as needs recovery
SMON: about to recover undo segment 7
SMON: mark undo segment 7 as needs recovery
SMON: about to recover undo segment 8
SMON: mark undo segment 8 as needs recovery
SMON: about to recover undo segment 9
SMON: mark undo segment 9 as needs recovery
SMON: about to recover undo segment 10
SMON: mark undo segment 10 as needs recovery
Tue May 15 20:00:37 2012
Shutting down instance (abort)

看到这里,可以大概确定是因为undo文件离线,导致回滚段异常.
这个问题,基本上可以确定通过隐含参数屏蔽回滚段,然后open数据库,重建undo删除异常undo,数据库恢复完成。

发表在 Oracle备份恢复 | 标签为 , , , | 4 条评论

记录一次rman备份ORA-19502/ORA-27063错误原因分析

rman备份出现ORA-19502/ORA-27063错误

RMAN> 2> 3> 4> 5> 6> 7> 8> 9> 10> 11> 12> 13> 14> 15> 16> 17> 18> 19> 20> 
allocated channel: t11
channel t11: sid=824 instance=ncdb1 devtype=DISK

allocated channel: t12
channel t12: sid=838 instance=ncdb1 devtype=DISK

allocated channel: t13
channel t13: sid=809 instance=ncdb1 devtype=DISK

allocated channel: t14
channel t14: sid=886 instance=ncdb1 devtype=DISK

allocated channel: t15
channel t15: sid=620 instance=ncdb1 devtype=DISK

allocated channel: t16
channel t16: sid=599 instance=ncdb1 devtype=DISK

allocated channel: t17
channel t17: sid=482 instance=ncdb1 devtype=DISK

allocated channel: t18
channel t18: sid=506 instance=ncdb1 devtype=DISK
一共开通8个通道

channel t12: starting full datafile backupset
channel t12: specifying datafile(s) in backupset
input datafile fno=00008 name=/dev/rnc32g_39
input datafile fno=00016 name=/dev/rnc32g_47
input datafile fno=00024 name=/dev/rnc32g_57
input datafile fno=00032 name=/dev/rnc32g_25
input datafile fno=00040 name=/dev/rnc32g_33
input datafile fno=00048 name=/dev/rnc32g_3
input datafile fno=00056 name=/dev/rnc32g_11
input datafile fno=00064 name=/dev/rnc32g_19
input datafile fno=00072 name=/dev/rnc32g_67
input datafile fno=00080 name=/dev/rnc32g_106
input datafile fno=00088 name=/dev/rnc32g_114
input datafile fno=00096 name=/dev/rnc32g_87
input datafile fno=00104 name=/dev/rnc32g_95
input datafile fno=00112 name=/dev/rnc32g_103
input datafile fno=00120 name=/dev/rnc32g_75
input datafile fno=00003 name=/dev/rnc50_sysaux
input datafile fno=00130 name=/dev/rnc32g_119
channel t12: starting piece 1 at 14-MAY-12
--通道12备份数据文件

channel t17: starting full datafile backupset
channel t17: specifying datafile(s) in backupset
input datafile fno=00002 name=/dev/rnc32g_22
input datafile fno=00013 name=/dev/rnc32g_44
input datafile fno=00021 name=/dev/rnc32g_54
input datafile fno=00029 name=/dev/rnc32g_62
input datafile fno=00037 name=/dev/rnc32g_30
input datafile fno=00045 name=/dev/rnc32g_38
input datafile fno=00053 name=/dev/rnc32g_8
input datafile fno=00061 name=/dev/rnc32g_16
input datafile fno=00069 name=/dev/rnc32g_64
input datafile fno=00077 name=/dev/rncundo_33g_4
input datafile fno=00085 name=/dev/rnc32g_111
input datafile fno=00093 name=/dev/rnc32g_84
input datafile fno=00101 name=/dev/rnc32g_92
input datafile fno=00109 name=/dev/rnc32g_100
input datafile fno=00117 name=/dev/rnc32g_72
input datafile fno=00006 name=/dev/rnc50_4g_1
channel t17: starting piece 1 at 14-MAY-12
--通道17备份数据文件

channel t15: finished piece 1 at 15-MAY-12
piece handle=/rman/db_mpnb04jl_1_1 tag=TAG20120514T204954 comment=NONE
channel t15: backup set complete, elapsed time: 06:07:59
channel t11: finished piece 1 at 15-MAY-12
piece handle=/rman/db_mlnb04jk_1_1 tag=TAG20120514T204954 comment=NONE
channel t11: backup set complete, elapsed time: 06:17:25
channel t16: finished piece 1 at 15-MAY-12
piece handle=/rman/db_mqnb04jm_1_1 tag=TAG20120514T204954 comment=NONE
channel t16: backup set complete, elapsed time: 06:34:49
channel t14: finished piece 1 at 15-MAY-12
piece handle=/rman/db_monb04jl_1_1 tag=TAG20120514T204954 comment=NONE
channel t14: backup set complete, elapsed time: 06:40:05
channel t18: finished piece 1 at 15-MAY-12
piece handle=/rman/db_msnb04jn_1_1 tag=TAG20120514T204954 comment=NONE
channel t18: backup set complete, elapsed time: 06:43:38
channel t13: finished piece 1 at 15-MAY-12
piece handle=/rman/db_mnnb04jl_1_1 tag=TAG20120514T204954 comment=NONE
channel t13: backup set complete, elapsed time: 07:40:56
--这里可以看出rman的备份完成了通道11/13/14/15/16/18,也就是说目前为止通道12/17未完成.

RMAN-03009: failure of backup command on t12 channel at 05/15/2012 04:39:58
ORA-19502: write error on file "/rman/db_mmnb04jl_1_1", blockno 30481025 (blocksize=8192)
ORA-27063: number of bytes read/written is incorrect
IBM AIX RISC System/6000 Error: 28: No space left on device
Additional information: -1
Additional information: 1048576
ORA-19502: write error on file "/rman/db_mmnb04jl_1_1", blockno 30480897 (blocksize=8192)
ORA-27063: number of bytes read/written is incorrect
IBM AIX RISC System/6000 Error: 28: No space left on device
channel t12 disabled, job failed on it will be run on another channel
--通道12报错(硬盘空间不足)

channel t11: starting full datafile backupset
channel t11: specifying datafile(s) in backupset
input datafile fno=00008 name=/dev/rnc32g_39
input datafile fno=00016 name=/dev/rnc32g_47
input datafile fno=00024 name=/dev/rnc32g_57
input datafile fno=00032 name=/dev/rnc32g_25
input datafile fno=00040 name=/dev/rnc32g_33
input datafile fno=00048 name=/dev/rnc32g_3
input datafile fno=00056 name=/dev/rnc32g_11
input datafile fno=00064 name=/dev/rnc32g_19
input datafile fno=00072 name=/dev/rnc32g_67
input datafile fno=00080 name=/dev/rnc32g_106
input datafile fno=00088 name=/dev/rnc32g_114
input datafile fno=00096 name=/dev/rnc32g_87
input datafile fno=00104 name=/dev/rnc32g_95
input datafile fno=00112 name=/dev/rnc32g_103
input datafile fno=00120 name=/dev/rnc32g_75
input datafile fno=00003 name=/dev/rnc50_sysaux
input datafile fno=00130 name=/dev/rnc32g_119
channel t11: starting piece 1 at 15-MAY-12
--在通道12报错后,通道11已经完成了上次备份,所以启动备份通道12出错的数据文件

RMAN-03009: failure of backup command on t17 channel at 05/15/2012 04:39:58
ORA-19502: write error on file "/rman/db_mrnb04jm_1_1", blockno 30753793 (blocksize=8192)
ORA-27063: number of bytes read/written is incorrect
IBM AIX RISC System/6000 Error: 28: No space left on device
Additional information: -1
Additional information: 1048576
ORA-19502: write error on file "/rman/db_mrnb04jm_1_1", blockno 30753665 (blocksize=8192)
ORA-27063: number of bytes read/written is incorrect
IBM AIX RISC System/6000 Error: 28: No space left on device
channel t17 disabled, job failed on it will be run on another channel
--通道17也因为磁盘空间报错

channel t13: starting full datafile backupset
channel t13: specifying datafile(s) in backupset
input datafile fno=00002 name=/dev/rnc32g_22
input datafile fno=00013 name=/dev/rnc32g_44
input datafile fno=00021 name=/dev/rnc32g_54
input datafile fno=00029 name=/dev/rnc32g_62
input datafile fno=00037 name=/dev/rnc32g_30
input datafile fno=00045 name=/dev/rnc32g_38
input datafile fno=00053 name=/dev/rnc32g_8
input datafile fno=00061 name=/dev/rnc32g_16
input datafile fno=00069 name=/dev/rnc32g_64
input datafile fno=00077 name=/dev/rncundo_33g_4
input datafile fno=00085 name=/dev/rnc32g_111
input datafile fno=00093 name=/dev/rnc32g_84
input datafile fno=00101 name=/dev/rnc32g_92
input datafile fno=00109 name=/dev/rnc32g_100
input datafile fno=00117 name=/dev/rnc32g_72
input datafile fno=00006 name=/dev/rnc50_4g_1
channel t13: starting piece 1 at 15-MAY-12
--通道13也尝试备份通道17失败的数据文件

RMAN-03009: failure of backup command on t11 channel at 05/15/2012 04:39:59
ORA-19504: failed to create file "/rman/db_mtnb104u_1_1"
ORA-27044: unable to write the header block of file
IBM AIX RISC System/6000 Error: 28: No space left on device
Additional information: 3
Addition
--因为当前没有空闲空间,通道11终止,
--这个时候rman异常终止,导致后续的通道13终止记录未打印到日志

阅读完rman日志,很好理解因为存放rman备份的磁盘空间不足导致了一系列错误

检查磁盘剩余空间

Filesystem    GB blocks      Free %Used    Iused %Iused Mounted on
/dev/hd4          10.00      9.75    3%     6548     1% /
/dev/hd2          10.00      4.55   55%    84383     8% /usr
/dev/hd9var        5.00      4.04   20%     6290     1% /var
/dev/hd3           5.00      3.87   23%     1551     1% /tmp
/dev/hd1          10.00      9.91    1%      382     1% /home
/proc                 -         -    -         -     -  /proc
/dev/hd10opt       5.00      4.89    3%     3502     1% /opt
/dev/archalv      99.00     82.98   17%       96     1% /archa
/dev/fslv01       40.00     19.49   52%    72324     2% /ora10
/dev/fslv00     1800.00    467.25   75%       10     1% /rman

这下让人迷糊了,磁盘空间还剩余467.25G,怎么会报错呢?

分析原因

RMAN-03009: failure of backup command on t12 channel at 05/15/2012 04:39:58
ORA-19502: write error on file "/rman/db_mmnb04jl_1_1", blockno 30481025 (blocksize=8192)
ORA-27063: number of bytes read/written is incorrect
IBM AIX RISC System/6000 Error: 28: No space left on device
Additional information: -1
Additional information: 1048576
ORA-19502: write error on file "/rman/db_mmnb04jl_1_1", blockno 30480897 (blocksize=8192)
ORA-27063: number of bytes read/written is incorrect
IBM AIX RISC System/6000 Error: 28: No space left on device
channel t12 disabled, job failed on it will be run on another channel

RMAN-03009: failure of backup command on t17 channel at 05/15/2012 04:39:58
ORA-19502: write error on file "/rman/db_mrnb04jm_1_1", blockno 30753793 (blocksize=8192)
ORA-27063: number of bytes read/written is incorrect
IBM AIX RISC System/6000 Error: 28: No space left on device
Additional information: -1
Additional information: 1048576
ORA-19502: write error on file "/rman/db_mrnb04jm_1_1", blockno 30753665 (blocksize=8192)
ORA-27063: number of bytes read/written is incorrect
IBM AIX RISC System/6000 Error: 28: No space left on device
channel t17 disabled, job failed on it will be run on another channel

这两个通道在写入rman备份到磁盘中的时候,在05/15/2012 04:39:58发现磁盘空间不足,两个通道分别准备写入30480897/30753665号块的时候出错,那么当时这两个通道分别写入的数据块数为30480896/30753664,写入文件大小为(30480896+30753664)*8192/1024/1024/1024=467.1826171875G.这里可以看出磁盘剩余空间467.25G,其实当时已经写入了467.1826171875G,继续写入的时候出错.然后rman为了保证备份的正确性,自动删除了当时已经备份的467.1826171875G错误的备份文件.从而在备份结束后看到磁盘空间还有大量剩余而rman包空间不足的现象.

发表在 ORA-xxxxx, rman备份/恢复 | 标签为 , | 评论关闭

记录一次比较棘手数据库恢复要点

在最近的一次数据库异常恢复过程中遇到不少问题,把重点记录下
ORA-00704/ORA-01555错误

Fri May  4 21:04:21 2012
select ctime, mtime, stime from obj$ where obj# = :1
Fri May  4 21:04:21 2012
Errors in file /oracle/admin/standdb/udump/perfdb_ora_1286288.trc:
ORA-00704: bootstrap process failure
ORA-00704: bootstrap process failure
ORA-00604: error occurred at recursive SQL level 1
ORA-01555: snapshot too old: rollback segment number 40 with name "_SYSSMU40$" too small
Error 704 happened during db open, shutting down database
USER: terminating instance due to error 704
Instance terminated by USER, pid = 1286288
ORA-1092 signalled during: alter database open resetlogs...

这里的提示可以看出obj$基表中有事务存在,查询这个表的时候,要去找40号回滚段中相关数据;通过非常规方法,
查找到40号回滚段的状态是offliine了(这个查询出来的信息和是否使用隐含参数无关).

问题原因,为什么40号回滚段变得offline?
Fri May  4 17:36:26 2012
alter tablespace undotbs offline
Fri May  4 17:36:26 2012
ORA-1109 signalled during: alter tablespace undotbs offline...
Fri May  4 17:37:29 2012
alter database datafile  '/dev/rundodbs01' offline drop
Fri May  4 17:37:29 2012
Completed: alter database datafile  '/dev/rundodbs01' offline drop
因为强制offline 了file# 2文件导致(一个undo表空间文件)

解决方法:
1.bbed提交事务
因为现在生产的trace文件中未有关于obj$ 未提交事务的记录,做10046也为发现该记录,如果要使用bbed修改该事务,
那需要dump obj$相关的数据块(在mount状态下dump),然后找到相关事务,再修改

2.强制让file# 2 online
因为在resetlogs前file#2 已经offline掉了,所以要使得该文件能够成功online,需要先推进scn

ORA-00600[krhpfh_03-1209]

SQL> recover database until cancel;
ORA-00283: recovery session canceled due to errors
ORA-00600: internal error code, arguments: [krhpfh_03-1209], [2], [782415504],
[782428968], [3987078030], [2379], [0], [0]
ORA-01110: data file 2: '/dev/rundodbs01'

问题原因:
数据库处于非归档模式下,连续三次resetlogs,引起该bug

解决办法:
重建控制文件

但是这里问题出现了,因为file# 2的resetlogs scn和其他数据文件不一致,导致在file# 2 online的前提下,无法重建.
这样就处在了一个循环中(需要online file# 2 又要重建控制文件),这样的问题,可以通过bbed修改file# 2的resetlogs scn完成
或者先让file# 2 offline(没有加drop)掉,重建控制文件(除掉file# 2的文件记录)

ORA-00600[25025]

SMON: enabling cache recovery
Fri May  4 22:36:36 2012
Errors in file /oracle/admin/standdb/udump/perfdb_ora_1167402.trc:
ORA-00600: internal error code, arguments: [25025], [2], [], [], [], [], [], []
Fri May  4 22:36:38 2012
Errors in file /oracle/admin/standdb/udump/perfdb_ora_1167402.trc:
ORA-00600: internal error code, arguments: [25025], [2], [], [], [], [], [], []
Fri May  4 22:36:38 2012
Error 600 happened during db open, shutting down database
USER: terminating instance due to error 600
Instance terminated by USER, pid = 1167402

错误原因:
因为有undo文件不在undo对应的表空间中,而我们的file# 2文件确实是undo文件,而且重建控制文件时候未加入进来

解决办法:
  undo_management          = AUTO
  undo_tablespace          = UNDODBS(file# 2属于该表空间)
修改为
  undo_management          = MANUAL
  undo_tablespace          = SYSTEM
或者bbed修改file# 2的header,然后重建控制文件

ORA-00600[4137]

Errors in file /oracle/admin/standdb/bdump/perfdb_smon_1290564.trc:
ORA-00600: internal error code, arguments: [4137], [], [], [], [], [], [], []
Fri May  4 23:20:52 2012
create undo tablespace undotbs3 datafile '/dev/rundodbs21' size 20400M
Fri May  4 23:23:47 2012
Errors in file /oracle/admin/standdb/bdump/perfdb_smon_1290564.trc:
ORA-00600: internal error code, arguments: [4137], [], [], [], [], [], [], []
Fri May  4 23:23:48 2012
Errors in file /oracle/admin/standdb/bdump/perfdb_pmon_1520126.trc:
ORA-00474: SMON process terminated with error
Fri May  4 23:23:48 2012
PMON: terminating instance due to error 474
Instance terminated by PMON, pid = 1520126

错误原因:
_smon_internal_errlimit(limit of SMON internal errors) SMON遇到了内部错误,最大允许100次,
不断计数增长,达到100的时候,数据库smon进程自动down掉,从而导致数据库down

解决办法:
1.临时解决办法:设置_smon_internal_errlimit一个较大值
3.根本解决办法:使用undo隐含参数,删除有问题undo 回滚段和undo表空间或者使用10513 事件
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