測試導數據驗證一個其它問題，但是突然導入的時候一直卡主了。然後一看日誌發現原來impdp導入過程中產生大量歸檔日誌，存儲歸檔的空間滿了所以才卡住了
tail /u01/app/oracle/diag/rdbms/zhanky/zhanky/trace/alert_zhanky.log（主要報錯如下）
[root@source ~]# tail /u01/app/oracle/diag/rdbms/zhanky/zhanky/trace/alert_zhanky.log .... ************************************************************************ ARC3: Error 19809 Creating archive log file to '/u01/app/oracle/fast_recovery_area/ZHANKY/archivelog/2019_05_07/o1_mf_1_100_%u_.arc' Errors in file /u01/app/oracle/diag/rdbms/zhanky/zhanky/trace/zhanky_arc0_2423.trc: ORA-19815: WARNING: db_recovery_file_dest_size of 4385144832 bytes is 100.00% used, and has 0 remaining bytes available. ************************************************************************ You have following choices to free up space from recovery area: 1. Consider changing RMAN RETENTION POLICY. If you are using Data Guard, then consider changing RMAN ARCHIVELOG DELETION POLICY. 2. Back up files to tertiary device such as tape using RMAN BACKUP RECOVERY AREA command. 3. Add disk space and increase db_recovery_file_dest_size parameter to reflect the new space. 4. Delete unnecessary files using RMAN DELETE command. If an operating system command was used to delete files, then use RMAN CROSSCHECK and DELETE EXPIRED commands. ************************************************************************ ...
因爲是測試環境所以只是開啓了歸檔其它啥都沒設置，於是就默認存放位置載db_recovery_file_dest_size 下，默認也是4G大小。
其實解決方法也簡單，只不過想起來好久沒寫博客所以記錄一下。主要歸檔滿了，我們可以通過設置限制的大小或者刪除歸檔日誌來解決。但是因爲我這邊測試空間不多所以採用第二種方法刪除歸檔日誌。
先新開一個終端，rman target / 運行以下命令。
[oracle@source ~]$ rman target / Recovery Manager: Release 11.2.0.4.0 - Production on Tue May 7 20:48:26 2019 Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved. connected to target database: ZHANKY (DBID=2622149390) RMAN> RMAN> delete archivelog all; released channel: ORA_DISK_1 allocated channel: ORA_DISK_1 channel ORA_DISK_1: SID=1163 device type=DISK List of Archived Log Copies for database with db_unique_name ZHANKY ===================================================================== Key Thrd Seq S Low Time ------- ---- ------- - --------- 97 1 100 A 07-MAY-19 . . . . Name: /u01/app/oracle/fast_recovery_area/ZHANKY/archivelog/2019_05_07/o1_mf_1_100_gf3079ns_.arc 140 1 144 A 07-MAY-19 Name: /u01/app/oracle/fast_recovery_area/ZHANKY/archivelog/2019_05_07/o1_mf_1_144_gf30osyo_.arc Do you really want to delete the above objects (enter YES or NO)? yes deleted archived log archived log file name=/u01/app/oracle/fast_recovery_area/ZHANKY/archivelog/2019_05_07/o1_mf_1_100_gf3079ns_.arc RECID=97 STAMP=1007672299 deleted archived log . . . . archived log file name=/u01/app/oracle/fast_recovery_area/ZHANKY/archivelog/2019_05_07/o1_mf_1_144_gf30osyo_.arc RECID=140 STAMP=1007672763 Deleted 45 objects RMAN> exit
後面在開就恢復正常了
[root@source ~]# tail /u01/app/oracle/diag/rdbms/zhanky/zhanky/trace/alert_zhanky.log Archived Log entry 139 added for thread 1 sequence 143 ID 0x9c4b270e dest 1: Thread 1 advanced to log sequence 145 (LGWR switch) Current log# 1 seq# 145 mem# 0: /u01/app/oracle/oradata/zhanky/redo01.log Tue May 07 21:06:03 2019 Archived Log entry 140 added for thread 1 sequence 144 ID 0x9c4b270e dest 1: Tue May 07 21:06:12 2019 Thread 1 advanced to log sequence 146 (LGWR switch) Current log# 2 seq# 146 mem# 0: /u01/app/oracle/oradata/zhanky/redo02.log Tue May 07 21:06:13 2019 Archived Log entry 141 added for thread 1 sequence 145 ID 0x9c4b270e dest 1: