数据库备份日志报错：RMAN-08137: WARNING: archived log not deleted, needed for standby or upstream capture process，DB版本为11.2.0.4，根据备策略，每天备份归档，并且自动删除档，保留一个星期的归档，手功执如下命令：
delete noprompt archivelog until time 'sysdate-7'；
依然报错，信息如下：
archived log file name=+CWDATA/sjjhdg/archivelog/2019_12_24/thread_1_seq_2328.1241.1027887401 thread=1 sequence=2328
RMAN-08137: WARNING: archived log not deleted, needed for standby or upstream capture process
archived log file name=+CWDATA/sjjhdg/archivelog/2019_12_24/thread_1_seq_2329.1242.1027887719 thread=1 sequence=2329
RMAN-08137: WARNING: archived log not deleted, needed for standby or upstream capture process
archived log file name=+CWDATA/sjjhdg/archivelog/2019_12_24/thread_1_seq_2330.1243.1027887813 thread=1 sequence=2330
RMAN-08137: WARNING: archived log not deleted, needed for standby or upstream capture process
archived log file name=+CWDATA/sjjhdg/archivelog/2019_12_24/thread_1_seq_2331.1244.1027887873 thread=1 sequence=2331
RMAN-08137: WARNING: archived log not deleted, needed for standby or upstream capture process
archived log file name=+CWDATA/sjjhdg/archivelog/2019_12_25/thread_1_seq_2332.1245.1027902623 thread=1 sequence=2332
RMAN-08137: WARNING: archived log not deleted, needed for standby or upstream capture process
archived log file name=+CWDATA/sjjhdg/archivelog/2019_12_25/thread_1_seq_2333.1246.1027902719 thread=1 sequence=2333
RMAN-08137: WARNING: archived log not deleted, needed for standby or upstream capture process
archived log file name=+CWDATA/sjjhdg/archivelog/2019_12_25/thread_1_seq_2334.1247.1027908493 thread=1 sequence=2334
RMAN-08137: WARNING: archived log not deleted, needed for standby or upstream capture process
archived log file name=+CWDATA/sjjhdg/archivelog/2019_12_25/thread_1_seq_2335.1248.1027911721 thread=1 sequence=2335
RMAN-08137: WARNING: archived log not deleted, needed for standby or upstream capture process
archived log file name=+CWDATA/sjjhdg/archivelog/2019_12_26/thread_1_seq_2336.1249.1027989005 thread=1 sequence=2336
RMAN-08137: WARNING: archived log not deleted, needed for standby or upstream capture process
archived log file name=+CWDATA/sjjhdg/archivelog/2019_12_26/thread_1_seq_2337.1250.1027989067 thread=1 sequence=2337
RMAN-08137: WARNING: archived log not deleted, needed for standby or upstream capture process
archived log file name=+CWDATA/sjjhdg/archivelog/2019_12_26/thread_1_seq_2338.1251.1027990617 thread=1 sequence=2338
RMAN-08137: WARNING: archived log not deleted, needed for standby or upstream capture process
archived log file name=+CWDATA/sjjhdg/archivelog/2019_12_26/thread_1_seq_2339.1252.1028041713 thread=1 sequence=2339
RMAN-08137: WARNING: archived log not deleted, needed for standby or upstream capture process
archived log file name=+CWDATA/sjjhdg/archivelog/2019_12_27/thread_1_seq_2340.1253.1028075413 thread=1 sequence=2340
...............
在MOS搜索发现这是11g中的一个bug，描述的原因是在11g中，RMAN查看的是v$database中的MIN_REQUIRED_CAPTURE_CHANGE#，而不是DBA_CAPTURE。默认情况下，该值每6小时更新一次。因此，在默认情况下，v$database中的值将比当前值晚6个小时。
给出的解决方法是需要在delete 后面加上force。
手动执行delete noprompt force archivelog until time 'sysdate-7', 成功将归档删除。
deleted archived log
archived log file name=+CWDATA/sjjhdg/archivelog/2019_12_24/thread_1_seq_2330.1243.1027887813 RECID=18420 STAMP=1027887814
deleted archived log
archived log file name=+CWDATA/sjjhdg/archivelog/2019_12_24/thread_1_seq_2331.1244.1027887873 RECID=18421 STAMP=1027887875
deleted archived log
archived log file name=+CWDATA/sjjhdg/archivelog/2019_12_25/thread_1_seq_2332.1245.1027902623 RECID=18422 STAMP=1027902628
deleted archived log
archived log file name=+CWDATA/sjjhdg/archivelog/2019_12_25/thread_1_seq_2333.1246.1027902719 RECID=18423 STAMP=1027902721
deleted archived log
archived log file name=+CWDATA/sjjhdg/archivelog/2019_12_25/thread_1_seq_2334.1247.1027908493 RECID=18424 STAMP=1027908500
deleted archived log
archived log file name=+CWDATA/sjjhdg/archivelog/2019_12_25/thread_1_seq_2335.1248.1027911721 RECID=18425 STAMP=1027911722
deleted archived log
archived log file name=+CWDATA/sjjhdg/archivelog/2019_12_26/thread_1_seq_2336.1249.1027989005 RECID=18426 STAMP=1027989010
deleted archived log
archived log file name=+CWDATA/sjjhdg/archivelog/2019_12_26/thread_1_seq_2337.1250.1027989067 RECID=18427 STAMP=1027989069
deleted archived log
archived log file name=+CWDATA/sjjhdg/archivelog/2019_12_26/thread_1_seq_2338.1251.1027990617 RECID=18428 STAMP=1027990618
deleted archived log
archived log file name=+CWDATA/sjjhdg/archivelog/2019_12_26/thread_1_seq_2339.1252.1028041713 RECID=18429 STAMP=1028041715
...........
Deleted 800 objects