用数据泵impdp往开发数据库导数据，但导入到INDEX时感觉卡住不动了
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | Processing object type SCHEMA_EXPORT/ TABLE / INDEX / INDEX ----查看状态，Completed Objects: 33一直没有变化。 Import> status Job: SYS_IMPORT_FULL_01 Operation: IMPORT Mode: FULL State: EXECUTING Bytes Processed: 843,222,272 Percent Done: 99 Current Parallelism: 1 Job Error Count : 0 Dump File: /home/oracle/dump/wj_dev%u.dmp Dump File: /home/oracle/dump/wj_dev01.dmp Dump File: /home/oracle/dump/wj_dev02.dmp Dump File: /home/oracle/dump/wj_dev03.dmp Dump File: /home/oracle/dump/wj_dev04.dmp Dump File: /home/oracle/dump/wj_dev05.dmp Dump File: /home/oracle/dump/wj_dev06.dmp Dump File: /home/oracle/dump/wj_dev07.dmp Dump File: /home/oracle/dump/wj_dev08.dmp Dump File: /home/oracle/dump/wj_dev09.dmp Dump File: /home/oracle/dump/wj_dev10.dmp Worker 1 Status: Process Name : DW00 State: EXECUTING Object Schema : ESOP2TEST Object Name : SYS_MSISDNNUMID Object Type: SCHEMA_EXPORT/ TABLE / INDEX / INDEX Completed Objects: 33 Worker Parallelism: 1 |
查看导入任务对应的会话做在等待什么
| 1 2 3 4 5 6 7 8 9 10 11 12 | SQL> select * from DBA_DATAPUMP_JOBS; OWNER_NAME JOB_NAME OPERATION JOB_MODE STATE DEGREE ATTACHED_SESSIONS DATAPUMP_SESSIONS ---------- ------------------------------ ------------------------------ ------------------------------ ------------------------------ ---------- ----------------- ----------------- SYS SYS_IMPORT_FULL_01 IMPORT FULL EXECUTING 1 2 4 SQL> select sid,sql_id,event from v $session where action= 'SYS_IMPORT_FULL_01' ; SID SQL_ID EVENT ---------- ------------- ---------------------------------------------------------------- 146 bjf05cwcj5s6p wait for unread message on broadcast channel 295 58rzgvcv6gnjs statement suspended, wait error to be cleared |
从上面的查询中可以看到“statement suspended, wait error to be cleared”等待事件，这个是一个不常见的等待事件。
继续查看alert日志，发现如下报错：
| 1 2 | statement in resumable session 'SYS.SYS_IMPORT_FULL_01.1' was suspended due to ORA-01652: unable to extend temp segment by 128 in tablespace TEMP |
看到上面的报错就能明白为什么导入会卡住不动了，正在导入INDEX，创建索引会使用临时表空间，但临时文件太小又没有设置自动扩展导致创建索引语句HANG住。启用临时文件的自动扩展问题解决：
| 1 | alter database tempfile '/oradata/dbs/temp01.dbf' autoextend on next 100m; |
导入正常：
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | Import> status Job: SYS_IMPORT_FULL_01 Operation: IMPORT Mode: FULL State: EXECUTING Bytes Processed: 843,222,272 Percent Done: 99 Current Parallelism: 1 Job Error Count : 0 Dump File: /home/oracle/dump/wj_dev%u.dmp Dump File: /home/oracle/dump/wj_dev01.dmp Dump File: /home/oracle/dump/wj_dev02.dmp Dump File: /home/oracle/dump/wj_dev03.dmp Dump File: /home/oracle/dump/wj_dev04.dmp Dump File: /home/oracle/dump/wj_dev05.dmp Dump File: /home/oracle/dump/wj_dev06.dmp Dump File: /home/oracle/dump/wj_dev07.dmp Dump File: /home/oracle/dump/wj_dev08.dmp Dump File: /home/oracle/dump/wj_dev09.dmp Dump File: /home/oracle/dump/wj_dev10.dmp Worker 1 Status: Process Name : DW00 State: EXECUTING Object Schema : SUF3TEST Object Name : IDX_ORDER_MEMBER_CHARACTER_ID Object Type: SCHEMA_EXPORT/ TABLE / INDEX / INDEX Completed Objects: 407 Worker Parallelism: 1 |
本文转自hbxztc 51CTO博客，原文链接：http://blog.51cto.com/hbxztc/1959357
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