ora-19510/ora-27037

ora-27037: unable to obtain file statusLinux-x86_64 Error: 2: No such file or directory为什么会没有归档文件了呢？谁删除了

早上在上班的路上接到报警短信，报警一个库的归档有问题。

alert.log文件内容如下：
Wed Jul 25 06:00:02 2012
Errors in file /Oracle/app/oracle/admin/skate/bdump/skate_arc0_3618.trc:
ora-19510: failed to set size of 84875 blocks for file "/oracle/oradata/skate/archive/1_59432_713742632.dbf" (blocksize=512)
ora-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 9
Wed Jul 25 06:00:02 2012
Errors in file /oracle/app/oracle/admin/skate/bdump/skate_arc0_3618.trc:
ora-19510: failed to set size of 84875 blocks for file "/oracle/oradata/skate/archive/1_59432_713742632.dbf" (blocksize=512)
ora-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 9
Wed Jul 25 06:00:02 2012
ARC0: Error 19510 Closing archive log file '/oracle/oradata/skate/archive/1_59432_713742632.dbf'
ARCH: Archival stopped, error occurred. Will continue retrying
Wed Jul 25 06:00:02 2012
ORACLE Instance skate - Archival Error
Wed Jul 25 06:00:02 2012
ora-16038: log 1 sequence# 59432 cannot be archived
ora-19510: failed to set size of  blocks for file "" (blocksize=)
ora-00312: online log 1 thread 1: '/oracle/oradata/skate/redo01.log'
Wed Jul 25 06:00:02 2012
Errors in file /oracle/app/oracle/admin/skate/bdump/skate_arc0_3618.trc:
ora-16038: log 1 sequence# 59432 cannot be archived
ora-19510: failed to set size of  blocks for file "" (blocksize=)
ora-00312: online log 1 thread 1: '/oracle/oradata/skate/redo01.log

.......

从错误log分析，
ARC0: Error 19510 Closing archive log file '/oracle/oradata/skate/archive/1_59432_713742632.dbf'
ARCH: Archival stopped, error occurred. Will continue retrying

关闭归档日志文件时异常，错误的原因是不能获得文件句柄，在os层提示没有这个文件

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ora-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory

为什么会没有归档文件了呢？谁删除了？大早晨的，大家还都没到公司，谁会删除归档文件呢？想到可能是定时任务删除归档，于是查找定时任务，，发现有个每小时删除所有归档的任务，这说明oracle在操作完归档准备close的时候，发现归档文件被定时任务给删除了，所以就报如上的错误了。这个定时任务的逻辑有问题，于是我调整为，每次删除2小时以前的归档。

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