oracle--DG模式备库归档缺失问题（1）

01.问题描述

　　 备库的归档日志没有增加，一直等待一个

查询问题：

SQL> SELECT * FROM V$ARCHIVE_GAP;

   THREAD# LOW_SEQUENCE# HIGH_SEQUENCE#
---------- ------------- --------------
     1        6434       6435

select name ,sequence# from v$archived_log;
NAME                                          SEQUENCE#
-------------------------------------------------------------------------------- ----------
/u01/app/oracle/product/11.2.0/db_1/dbs/archivelog/1_6414_1000748999.dbf           6414
/u01/app/oracle/product/11.2.0/db_1/dbs/archivelog/1_6417_1000748999.dbf           6417
/u01/app/oracle/product/11.2.0/db_1/dbs/archivelog/1_6420_1000748999.dbf           6420
/u01/app/oracle/product/11.2.0/db_1/dbs/archivelog/1_6421_1000748999.dbf           6421
/u01/app/oracle/product/11.2.0/db_1/dbs/archivelog/1_6419_1000748999.dbf           6419
/u01/app/oracle/product/11.2.0/db_1/dbs/archivelog/1_6418_1000748999.dbf           6418
/u01/app/oracle/product/11.2.0/db_1/dbs/archivelog/1_6425_1000748999.dbf           6425
/u01/app/oracle/product/11.2.0/db_1/dbs/archivelog/1_6426_1000748999.dbf           6426
/u01/app/oracle/product/11.2.0/db_1/dbs/archivelog/1_6423_1000748999.dbf           6423
/u01/app/oracle/product/11.2.0/db_1/dbs/archivelog/1_6422_1000748999.dbf           6422
/u01/app/oracle/product/11.2.0/db_1/dbs/archivelog/1_6424_1000748999.dbf           6424

NAME                                          SEQUENCE#
-------------------------------------------------------------------------------- ----------
/u01/app/oracle/product/11.2.0/db_1/dbs/archivelog/1_6366_1000748999.dbf           6366
/u01/app/oracle/product/11.2.0/db_1/dbs/archivelog/1_6427_1000748999.dbf           6427
/u01/app/oracle/product/11.2.0/db_1/dbs/archivelog/1_6428_1000748999.dbf           6428
/u01/app/oracle/product/11.2.0/db_1/dbs/archivelog/1_6429_1000748999.dbf           6429
/u01/app/oracle/product/11.2.0/db_1/dbs/archivelog/1_6509_1000748999.dbf           6509
/u01/app/oracle/product/11.2.0/db_1/dbs/archivelog/1_6431_1000748999.dbf           6431
/u01/app/oracle/product/11.2.0/db_1/dbs/archivelog/1_6432_1000748999.dbf           6432
/u01/app/oracle/product/11.2.0/db_1/dbs/archivelog/1_6430_1000748999.dbf           6430
/u01/app/oracle/product/11.2.0/db_1/dbs/archivelog/1_6433_1000748999.dbf           6433
/u01/app/oracle/product/11.2.0/db_1/dbs/archivelog/1_6436_1000748999.dbf           6436

二，问题解决思路

　　01，查看本地库存不存在这个归档日志