今天在用impdp導入時，Processing object type SCHEMA_EXPORT/TABLE/INDEX/INDEX卡在建索引的過程一直不動，也不報錯，重試了好幾遍還是這樣。
於是登錄到oracle的導入日志查看是什么情況。查看alert日志發現:
statement in resumable session 'SYSTEM.SYS_IMPORT_FULL_06.1' was suspended due to
ORA-01652: unable to extend temp segment by 1024 in tablespace USERS
USERS表空間不足導致的報錯，隨后加大表空間:
alter tablespace USERS add datafile '/data/oradata/eas/user06.dbf' size 31g
但是導到一半的時候又報錯了:
Completed: alter tablespace USERS add datafile '/data/oradata/eas/user06.dbf' size 31g
Thu Apr 30 09:52:04 2020
statement in resumable session 'SYSTEM.SYS_IMPORT_FULL_06.1' was resumed
Thu Apr 30 09:52:29 2020
Thread 1 cannot allocate new log, sequence 12255
Private strand flush not complete
Current log# 2 seq# 12254 mem# 0: /data/oradata/eas/redo02.log
Thread 1 advanced to log sequence 12255 (LGWR switch)
Current log# 3 seq# 12255 mem# 0: /data/oradata/eas/redo03.log
很明顯這是日志組被寫滿了，需要增加日志組:
1、select group#,sequence#,bytes,members,status from v$log; 查看每組日志的狀態
GROUP# SEQUENCE# BYTES MEMBERS STATUS
---------- ---------- ---------- ---------- ----------------
1 16946 52428800 1 INACTIVE ## 空閑的
2 16947 52428800 1 INACTIVE ## 空閑的
3 16948 52428800 1 CURRENT ##正在使用的
2、alter database add logfile group 4 ('/opt/oradata/orclbj/redo04.log') size 200M; 增加1組日志組 視情況而定增加日志組的大小。
alter database add logfile group 5 ('/opt/oradata/orclbj/redo05.log') size 200M;
alter database add logfile group 6 ('/opt/oradata/orclbj/redo06.log') size 200M;
3、alter system switch logfile; 切換日志組
4、alter database drop logfile group 1; 刪除日志組1 在線增加日志組的時候，刪除日志組的時候只能刪除 日志組狀態為 INACTIVE 的日志組。
隨后導入數據成功