海量数据迁移之外部表加载(100天)

本地有一个小的环境，今天照例登上sqlplus，突然发现报了如下的错误。一看原来归档满了。我记得前几天做一个批量操作临时把temp文件resize了很大，限于本地空间有限。准备改回去。把多余的归档删除了。

sqlplus n1/n1 
.... 
ERROR: 
ORA-00257: archiver error. Connect internal only, until freed.

这个时候sysdba的权限发挥作用了，它可以照常登录。然后开始做resize操作。

SQL> alter database tempfile '/u03/ora11g/oradata/TEST01/temp01.dbf' resize 100M;

但是等了好一会儿，一直没有输出。是不是Hang住了。

看来得删除归档文件了。然后到归档目录下尝试删除，结果这个时候rm似乎不管用了，命令执行了，但是归档文件还在那。我想是不是有系统级的问题了。

决定重启，重启以后，Mount状态过后就很不留情的报了一个03113的错误。

SQL> startup 
ORACLE instance started.
Total System Global Area  313159680 bytes 
Fixed Size                  2227944 bytes 
Variable Size             255852824 bytes 
Database Buffers           50331648 bytes 
Redo Buffers                4747264 bytes 
Database mounted. 
ORA-03113: end-of-file on communication channel 
Process ID: 8220 
Session ID: 237 Serial number: 5

查看alert日志文件。看到重做日志归档失败。

ARC3 started with pid=23, OS id=8232 
ARC1: Archival started 
ARC2: Archival started 
ARC2: Becoming the 'no FAL' ARCH 
ARC2: Becoming the 'no SRL' ARCH 
ARC1: Becoming the heartbeat ARCH 
ARCH: Encountered disk I/O error 19502 
ARCH: Closing local archive destination LOG_ARCHIVE_DEST_1: '/u03/ora11g/product/11.2.0/dbhome_1/dbs/arch1_216_837590339.dbf' (error 19502) (TEST01) 
ARC2: Encountered disk I/O error 19502 
ARC2: Closing local archive destination LOG_ARCHIVE_DEST_1: '/u03/ora11g/product/11.2.0/dbhome_1/dbs/arch1_217_837590339.dbf' (error 19502) (TEST01) 
ARC2: I/O error 19502 archiving log 1 to '/u03/ora11g/product/11.2.0/dbhome_1/dbs/arch1_217_837590339.dbf' 
ARCH: I/O error 19502 archiving log 3 to '/u03/ora11g/product/11.2.0/dbhome_1/dbs/arch1_216_837590339.dbf' 
ARCH: Archival stopped, error occurred. Will continue retrying 
ORACLE Instance TEST01 - Archival Error 
ORA-16038: log 1 sequence# 217 cannot be archived 
ORA-19502: write error on file "", block number  (block size=) 
ORA-00312: online log 1 thread 1: '/u03/ora11g/oradata/TEST01/redo01.log' 
Errors in file /u03/ora11g/diag/rdbms/test01/TEST01/trace/TEST01_ora_8220.trc: 
ORA-16038: log 3 sequence# 216 cannot be archived 
ORA-19502: write error on file "", block number  (block size=) 
ORA-00312: online log 3 thread 1: '/u03/ora11g/oradata/TEST01/redo03.log' 
USER (ospid: 8220): terminating the instance due to error 16038 
Wed May 21 17:48:18 2014 
System state dump requested by (instance=1, osid=8220), summary=[abnormal instance termination]. 
System State dumped to trace file /u03/ora11g/diag/rdbms/test01/TEST01/trace/TEST01_diag_8185.trc 
Dumping diagnostic data in directory=[cdmp_20140521174818], requested by (instance=1, osid=8220), summary=[abnormal instance termination]. 
Instance terminated by USER, pid = 8220

因为是测试环境，所以采用了如下的方法，启动到Mount阶段之后

SQL> startup mount 
ORACLE instance started.
Total System Global Area  313159680 bytes 
Fixed Size                  2227944 bytes 
Variable Size             255852824 bytes 
Database Buffers           50331648 bytes 
Redo Buffers                4747264 bytes 
Database mounted.
SQL> alter database clear unarchived logfile '/u03/ora11g/oradata/TEST01/redo01.log'; 
Database altered.
SQL> alter database clear unarchived logfile '/u03/ora11g/oradata/TEST01/redo03.log'; 
Database altered.
SQL> alter database open; 
Database altered.

查看日志文件情况

SQL> select group#,sequence#,members,status,archived from v$log;
  GROUP#  SEQUENCE#    MEMBERS STATUS           ARC 
---------- ---------- ---------- ---------------- --- 
         1        219          1 CURRENT          NO 
         2        218          1 INACTIVE         NO 
         3          0          1 UNUSED           YES
1* select *from v$logfile 
SQL> /
  GROUP# STATUS  TYPE    MEMBER                                             IS_RECOVER 
---------- ------- ------- -------------------------------------------------- ---------- 
         1         ONLINE  /u03/ora11g/oradata/TEST01/redo01.log              NO 
         2         ONLINE  /u03/ora11g/oradata/TEST01/redo02.log              NO 
         3         ONLINE  /u03/ora11g/oradata/TEST01/redo03.log              NO

这个时候重新执行temp文件的resize，就没有问题了。

SQL> alter database tempfile '/u03/ora11g/oradata/TEST01/temp01.dbf' resize 100M;
Database altered.