DG修复：异常关库导致的数据库启动失败ORA-01110及GAP修复
问题描述：正在应用的备库是一套11.2.0.4的rac环境，但是被直接crsctl stop cluster集群强制关库，重新启动之后导致数据库启动失败，报错
Errors in file /u01/app/oracle/diag/rdbms/racdg/racdg1/trace/racdg1_ora_4339.trc:
ORA-10458: standby database requires recovery
ORA-01196: file 1 is inconsistent due to a failed media recovery session
ORA-01110: data file 1: '+DATA/racdg/datafile/system.330.1090392901'
ORA-10458 signalled during: ALTER DATABASE OPEN...
1.数据库关闭之后启动失败
2.提示备库需要恢复，在mount状态进行recover，查看此时备库的状态，有延时。mrp在应用1310401号归档
SQL> shutdown immediate;
SQL> startup mount;
SQL> recover managed standby database using current logfile disconnect from session;
--查看进程状态
select process, status, thread#,sequence#, block#, blocks from v$managed_standby; --查看延时信息
set linesize 300
col name for a20
col value for a20
col time_computed for a30
select name,value,unit,time_computed from v$dataguard_stats where name in ('transport lag','apply lag');
3.但是发现延时一直还在增加，mrp还在应用1310401归档，没有用，查看主备库的日志文件输出，也没有报错信息。查看此时主备库状态信息
select open_mode,protection_mode,database_role,switchover_status from v$database;
备库
主库
4.主库提示有GAP，所以就查看主备库之间的归档差哪些，需要手动传输就手动传输。首先使用命令查询缺失的归档
--查看异常归档
select * from v$archive_gap;
但是这条命令执行失败，换条命令在备库中查询，查询结果多大一百多条记录，归档确实较多
select name,sequence#,creator,archived,applied from v$archived_log where order by FIRST_TIME ;
select name,sequence#,creator,archived,applied from v$archived_log where APPLIED='NO' order by FIRST_TIME ;
5.查看1310401号归档的是否存在
归档路径中只有到1310400号归档，而此时mrp确实是在等待1310401号归档，所以需要手动传输到备库中
6.手动重传缺失的归档到备库中。
主库是RAC，但是归档文件放在文件系统中；备库也是RAC，归档放在asm磁盘中。传输文件过程比较麻烦，此时同步的是thread2的归档，也就是需要去节点二的归档路径下去传输操作
主库传输所需要的归档
[root@node2 archivelog]# scp archive_2_13104* root@192.168.251.7:/home/grid/arch
[root@node2 archivelog]# scp archive_2_13105* root@192.168.251.7:/home/grid/arch
7.备库将归档文件传输到asm磁盘中，最好进入到需要传输文件的路径下去传输文件。
[grid@zjw-rac1 ~]$ cd arch/
[grid@zjw-rac1 arch]$
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310401_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310402_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310403_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310404_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310405_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310406_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310407_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310408_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310409_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310410_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310411_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310412_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310413_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310414_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310415_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310416_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310417_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310418_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310419_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310420_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310421_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310422_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310423_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310424_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310425_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310426_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310427_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310428_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310429_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310430_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310431_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310432_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310433_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310434_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310435_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310436_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310437_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310438_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310439_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310440_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310441_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310442_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310443_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310444_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310445_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310446_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310447_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310448_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310449_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310450_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310451_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310452_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310453_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310454_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310455_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310456_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310457_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310458_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310459_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310460_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310461_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310462_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310463_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310464_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310465_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310466_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310467_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310468_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310469_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310470_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310471_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310472_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310473_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310474_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310475_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310476_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310477_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310478_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310479_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310480_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310481_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310482_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310483_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310484_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310485_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310486_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310487_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310488_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310489_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310490_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310491_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310492_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310493_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310494_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310495_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310496_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310497_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310498_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310499_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310500_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310501_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310502_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310503_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310504_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310505_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310506_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310507_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310508_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310509_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310510_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310511_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310512_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310513_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310514_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310515_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310516_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310517_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310518_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310519_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310520_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310521_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310522_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310523_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310524_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310525_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310526_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310527_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310528_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310529_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310530_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310531_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310532_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310533_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310534_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310535_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310536_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310537_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310538_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310539_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310540_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310541_975591944.log +fra/racdg/archivelog/2021_12_24/
ASMCMD [+fra/racdg/archivelog/2021_12_24] > cp /home/grid/arch/archive_2_1310542_975591944.log +fra/racdg/archivelog/2021_12_24/
8.在数据库中注册传输过来的归档文件
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310402_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310403_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310404_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310405_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310406_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310407_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310408_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310409_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310410_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310411_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310412_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310413_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310414_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310415_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310416_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310417_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310418_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310419_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310420_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310421_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310422_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310423_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310424_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310425_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310426_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310427_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310428_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310429_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310430_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310431_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310432_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310433_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310434_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310435_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310436_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310437_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310438_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310439_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310440_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310441_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310442_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310443_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310444_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310445_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310446_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310447_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310448_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310449_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310450_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310451_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310452_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310453_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310454_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310455_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310456_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310457_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310458_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310459_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310460_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310461_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310462_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310463_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310464_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310465_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310466_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310467_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310468_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310469_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310470_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310471_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310472_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310473_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310474_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310475_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310476_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310477_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310478_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310479_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310480_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310481_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310482_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310483_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310484_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310485_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310486_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310487_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310488_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310489_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310490_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310491_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310492_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310493_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310494_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310495_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310496_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310497_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310498_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310499_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310500_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310501_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310502_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310503_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310504_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310505_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310506_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310507_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310508_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310509_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310510_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310511_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310512_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310513_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310514_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310515_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310516_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310517_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310518_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310519_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310520_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310521_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310522_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310523_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310524_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310525_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310526_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310527_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310528_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310529_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310530_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310531_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310532_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310533_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310534_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310535_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310536_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310537_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310538_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310539_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310540_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310541_975591944.log';
alter database register logfile '+fra/racdg/archivelog/2021_12_24/archive_2_1310542_975591944.log';
过程中的日志变化
9.打开数据库
SQL> alter database recover managed standby database cancel; Database altered. SQL> alter database open; Database altered. SQL>
SQL> alter database recover managed standby database using current logfile disconnect from session; Database altered.
10.打开数据库发现归档不会自动传输，查看主库此时alert日志，还是跟密码文件有关
------------------------------------------------------------
Fri Dec 24 20:05:18 2021
Immediate Kill Session#: 3809, Serial#: 25361
Immediate Kill Session: sess: 0x4042b45680 OS pid: 55698
Immediate Kill Session#: 4298, Serial#: 13353
Immediate Kill Session: sess: 0x4042c182e0 OS pid: 1181
Fri Dec 24 20:05:47 2021
Error 1017 received logging on to the standby
------------------------------------------------------------
Check that the primary and standby are using a password file
and remote_login_passwordfile is set to SHARED or EXCLUSIVE,
and that the SYS password is same in the password files.
returning error ORA-16191
------------------------------------------------------------
Fri Dec 24 20:06:48 2021
Error 1017 received logging on to the standby
------------------------------------------------------------
Check that the primary and standby are using a password file
and remote_login_passwordfile is set to SHARED or EXCLUSIVE,
and that the SYS password is same in the password files.
returning error ORA-16191
------------------------------------------------------------
11.再传输节点一的密码文件到节点二和备库的节点一和节点二，重新实时应用
SQL> alter database recover managed standby database cancel; Database altered. SQL>
SQL>
SQL> alter database recover managed standby database using current logfile disconnect from session; Database altered. --查看备库的同步状态
SQL> select process, status, thread#,sequence#, block#, blocks from v$managed_standby; PROCESS STATUS THREAD# SEQUENCE# BLOCK# BLOCKS
--------- ------------ ---------- ---------- ---------- ----------
ARCH CLOSING 1 1386815 32768 1440
ARCH CLOSING 1 1386816 32768 1384
ARCH CONNECTED 0 0 0 0
ARCH CLOSING 1 1386818 32768 1503
ARCH CLOSING 2 1310544 28672 1978
RFS IDLE 0 0 0 0
RFS IDLE 0 0 0 0
RFS IDLE 0 0 0 0
RFS IDLE 0 0 0 0
RFS IDLE 1 1386819 32659 1
MRP0 APPLYING_LOG 1 1386819 32657 102400 PROCESS STATUS THREAD# SEQUENCE# BLOCK# BLOCKS
--------- ------------ ---------- ---------- ---------- ----------
RFS IDLE 0 0 0 0
RFS IDLE 0 0 0 0
RFS IDLE 0 0 0 0
RFS IDLE 2 1310545 16917 7
RFS IDLE 0 0 0 0 16 rows selected.
SQL> select open_mode,protection_mode,database_role,switchover_status from v$database; OPEN_MODE PROTECTION_MODE DATABASE_ROLE SWITCHOVER_STATUS
-------------------- -------------------- ---------------- --------------------
READ ONLY WITH APPLY MAXIMUM PERFORMANCE PHYSICAL STANDBY NOT ALLOWED
--查看主库的状态
SQL> select open_mode,protection_mode,database_role,switchover_status from v$database; OPEN_MODE PROTECTION_MODE DATABASE_ROLE SWITCHOVER_STATUS
-------------------- -------------------- ---------------- --------------------
READ WRITE MAXIMUM PERFORMANCE PRIMARY SESSIONS ACTIVE
12.到此GAP修复完成，可以在主库多切换几次归档测试同步效果
DG修复：异常关库导致的数据库启动失败ORA-01110及GAP修复的更多相关文章
- ORA-03113: end-of-file on communication channel 磁盘慢，数据库启动失败
磁盘慢,数据库启动失败:解决思路:1.让数据文件offline: 2.删除表空间 SQL> startup pfile='/server/oracle/admin/test/pfile/init ...
- ipv6禁用导致rpcbind服务启动失败实例
ipv6禁用导致rpcbind服务启动失败实例 昨天在做服务器磁盘分区扩容的时候出现过一个服务启动的问题,在此记录.情景再现:前天晚上申请做磁盘扩容,得到批准后,昨天早上5点开始做停机调整维护 ...
- ORA-09925：Unable to create audit trail file 数据库启动失败
问题描述:生产库停机加内存和CPU,重启完服务器,启动数据库报错. ORA-09925: Unable to create audit trail file Linux-x86_64 Error 2: ...
- SELinux导致的docker启动失败
安装docker yum install -y docker 启动docker systemctl start docker 报错 Job for docker.service failed beca ...
- ipv6禁用导致rpcbind服务启动失败解决办法
参考文档:http://blog.51cto.com/hld1992/2055028
- 数据库启动失败：The server quit without updating PID file
1.可能是/usr/local/mysql/data/mysql.pid文件没有写的权限解决方法 :给予权限,执行 “chown -R mysql:mysql /var/data” “chmod -R ...
- Hadoop namenode连接journalnode限制导致集群启动失败
错误1:刚搭建的新集群,启动journalnode以后,格式化namenode节点,出现如下错误 注意其中划红线的地方. 出现这个错误的原因是journalnode节点还没有准备好,而namenode ...
- oracle 异常关闭操作 导致数据库无法正常关闭 也无法启动
场景描述: 在关闭数据库的时候,命令没有打全,导致数据库没有正常关闭 解决办法: 重新建立个连接,然后切换到oracle用户 执行强制关闭数据库: OK 问题解决,不过生产环境 还是不推荐 shutd ...
- 测试数据库DG搭建为正式库以后做准备
Data guard 部署 1.系统准备(备库只需建立数据库软件) 两台操作系统 oracle linux 7 Node1 172.16.70.191 Node2 172.16.70.192 Orac ...
随机推荐
- 更通俗的理解JS原型链
最近在网上看到一篇理解原型链的,感觉非常好非常通俗易懂,拿来记录一下~: 1)人是人他妈生的,妖是妖他妈生的.人和妖都是对象实例,而人他妈和妖他妈就是原型.原型也是对象,叫原型对象. 2)人他妈和人他 ...
- 全面了解 Javascript Prototype Chain 原型链
原型链可以说是Javascript的核心特征之一,当然也是难点之一.学过其它面向对象的编程语言后再学习Javascript多少会感到有些迷惑.虽然Javascript也可以说是面向对象的语言,但是其实 ...
- Linux服务器查看个人硬盘配额
quota -uvs
- [R]在dplyr基础上编写函数-(1)eval
tidyverse系列的R包虽然解放了大家的双手,但同时也束缚了我们重新编写函数的能力.在这一套语法中,要实现作为函数参数的字符串和变量之间的相互转换困难重重,但只要掌握了其中原理后,也就能够游刃有余 ...
- R语言中的正则表达式（转载：http://blog.csdn.net/duqi_yc/article/details/9817243）
转载:http://blog.csdn.net/duqi_yc/article/details/9817243 目录 Table of Contents 1 正则表达式简介 2 字符数统计和字符翻译 ...
- 25-ZigZag Conversion
The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like ...
- Selenium的安装和使用
一.Selenium的安装,Selenium是一个自动化测试工具,利用它我们可以驱动浏览器执行特定的动作,如点击.下拉等操作.对于一些JavaScript渲染的页面来说,这种抓取方式非常有效.1.pi ...
- HDC2021技术分论坛：异构组网如何解决共享资源冲突？
作者:lijie,HarmonyOS软总线领域专家 相信大家对HarmonyOS的"超级终端"比较熟悉了.那么,您知道超级终端场景下的多种设备在不同环境下是如何组成一个网络的吗?这 ...
- Yarn 生产环境核心配置参数
目录 Yarn 生产环境核心配置参数 ResourceManager NodeManager Container Yarn 生产环境核心配置参数 ResourceManager 配置调度器 yarn. ...
- linux 实用指令搜索查找类
linux 实用指令搜索查找类 目录 linux 实用指令搜索查找类 find指令 locate指令 grep指令和管道符号 | find指令 说明 从指定目录向下递归地遍历其各个子目录,将满足条件的 ...