[oracle@rac1 ~]$ impdp \/ as sysdba \ directory=expdp dumpfile=wxlun0402.dmp logfile=wxlun0402.impdplog REMAP_TABLESPACE=wxlun:wxlun_DATA REMAP_SCHEMA=wxlun:wxlun0402Import: Release 11.2.0.3.0 - Production on Thu Apr 2 10:46:29 2015Copyrig
[oracle@rac1 ~]$ impdp \'/ as sysdba \' directory=expdp dumpfile=wxlun0402.dmp logfile=wxlun0402.impdplog REMAP_TABLESPACE=wxlun:wxlun_DATA REMAP_SCHEMA=wxlun:wxlun0402 Import: Release 11.2.0.3.0 - Production on Thu Apr 2 10:46:29 2015 Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP, Data Mining and Real Application Testing options Master table "SYS"."SYS_IMPORT_FULL_01" successfully loaded/unloaded Starting "SYS"."SYS_IMPORT_FULL_01": "/******** AS SYSDBA" directory=expdp dumpfile=wxlun0402.dmp logfile=wxlun0402.impdplog REMAP_TABLESPACE=wxlun:wxlun_DATA REMAP_SCHEMA=wxlun:wxlun0402 Processing object type SCHEMA_EXPORT/USER ORA-31684: Object type USER:"wxlun0402" already exists ------用户已创建,报错忽略 Processing object type SCHEMA_EXPORT/SYSTEM_GRANT Processing object type SCHEMA_EXPORT/ROLE_GRANT Processing object type SCHEMA_EXPORT/DEFAULT_ROLE Processing object type SCHEMA_EXPORT/PRE_SCHEMA/PROCACT_SCHEMA Processing object type SCHEMA_EXPORT/TABLE/TABLE Processing object type SCHEMA_EXPORT/TABLE/INDEX/INDEX Processing object type SCHEMA_EXPORT/TABLE/CONSTRAINT/CONSTRAINT Processing object type SCHEMA_EXPORT/TABLE/INDEX/STATISTICS/INDEX_STATISTICS Processing object type SCHEMA_EXPORT/TABLE/COMMENT Processing object type SCHEMA_EXPORT/TABLE/STATISTICS/TABLE_STATISTICS ---下面开始报错--- ORA-39014: One or more workers have prematurely exited. ORA-39029: worker 1 with process name "DW00" prematurely terminated ORA-31671: Worker process DW00 had an unhandled exception. ORA-04030: out of process memory when trying to allocate 16048 bytes (session heap,kuxLpxAlloc) ORA-06512: at "SYS.KUPW$WORKER", line 1838 ORA-06512: at line 2 ORA-39126: Worker unexpected fatal error in KUPW$WORKER.LOAD_METADATA [SELECT process_order, flags, xml_clob, NVL(dump_fileid, :1), NVL(dump_position, :2), dump_length, dump_allocation, NVL(value_n, 0), grantor, object_row, object_schema, object_long_name, partition_name, subpartition_name, processing_status, processing_state, base_object_type, base_object_schema, base_object_name, base_process_order, property, size_estimate, in_progress, original_object_schema, original_object_name, creation_level, object_int_oid FROM "SYS"."SYS_IMPORT_FULL_01" WHERE process_order between :3 AND :4 AND duplicate = 0 AND processing_state NOT IN (:5, :6, :7) ORDER BY process_order] ORA-19505: failed to identify file "/u01/oracle/expdp/wxlun0402.dmp" ORA-27037: unable to obtain file status Linux-x86_64 Error: 2: No such file or directory Additional information: 3 ORA-06512: at "SYS.DBMS_SYS_ERROR", line 95 ORA-06512: at "SYS.KUPW$WORKER", line 9001 ----- PL/SQL Call Stack ----- object line object handle number name 0x17c15e530 20462 package body SYS.KUPW$WORKER 0x17c15e530 9028 package body SYS.KUPW$WORKER 0x17c15e530 4185 package body SYS.KUPW$WORKER 0x17c15e530 9725 package body SYS.KUPW$WORKER 0x17c15e530 1775 package body SYS.KUPW$WORKER 0x172f16550 2 anonymous block ORA-39014: One or more workers have prematurely exited. ORA-39029: worker 3 with process name "DW00" prematurely terminated ORA-31671: Worker process DW00 had an unhandled exception. ORA-04030: out of process memory when trying to allocate 120048 bytes (session heap,kuxLpxAlloc) ORA-06512: at "SYS.KUPW$WORKER", line 1838 ORA-06512: at line 2 ORA-39126: Worker unexpected fatal error in KUPW$WORKER.LOAD_METADATA [SELECT process_order, flags, xml_clob, NVL(dump_fileid, :1), NVL(dump_position, :2), dump_length, dump_allocation, NVL(value_n, 0), grantor, object_row, object_schema, object_long_name, partition_name, subpartition_name, processing_status, processing_state, base_object_type, base_object_schema, base_object_name, base_process_order, property, size_estimate, in_progress, original_object_schema, original_object_name, creation_level, object_int_oid FROM "SYS"."SYS_IMPORT_FULL_01" WHERE process_order between :3 AND :4 AND duplicate = 0 AND processing_state NOT IN (:5, :6, :7) ORDER BY process_order] ORA-19505: failed to identify file "/u01/oracle/expdp/wxlun0402.dmp" ORA-27037: unable to obtain file status Linux-x86_64 Error: 2: No such file or directory Additional information: 3 ORA-06512: at "SYS.DBMS_SYS_ERROR", line 95 ORA-06512: at "SYS.KUPW$WORKER", line 9001 ----- PL/SQL Call Stack ----- object line object handle number name 0x17c15e530 20462 package body SYS.KUPW$WORKER 0x17c15e530 9028 package body SYS.KUPW$WORKER 0x17c15e530 4185 package body SYS.KUPW$WORKER 0x17c15e530 9725 package body SYS.KUPW$WORKER 0x17c15e530 1775 package body SYS.KUPW$WORKER 0x172f16550 2 anonymous block ORA-39014: One or more workers have prematurely exited. ORA-39029: worker 5 with process name "DW00" prematurely terminated ORA-31671: Worker process DW00 had an unhandled exception. ORA-04030: out of process memory when trying to allocate 16048 bytes (session heap,kuxLpxAlloc) ORA-06512: at "SYS.KUPW$WORKER", line 1838 ORA-06512: at line 2 ORA-39126: Worker unexpected fatal error in KUPW$WORKER.LOAD_METADATA [SELECT process_order, flags, xml_clob, NVL(dump_fileid, :1), NVL(dump_position, :2), dump_length, dump_allocation, NVL(value_n, 0), grantor, object_row, object_schema, object_long_name, partition_name, subpartition_name, processing_status, processing_state, base_object_type, base_object_schema, base_object_name, base_process_order, property, size_estimate, in_progress, original_object_schema, original_object_name, creation_level, object_int_oid FROM "SYS"."SYS_IMPORT_FULL_01" WHERE process_order between :3 AND :4 AND duplicate = 0 AND processing_state NOT IN (:5, :6, :7) ORDER BY process_order] ORA-19505: failed to identify file "/u01/oracle/expdp/wxlun0402.dmp" ORA-27037: unable to obtain file status Linux-x86_64 Error: 2: No such file or directory Additional information: 3 ORA-06512: at "SYS.DBMS_SYS_ERROR", line 95 ORA-06512: at "SYS.KUPW$WORKER", line 9001 ----- PL/SQL Call Stack ----- object line object handle number name 0x17c15e530 20462 package body SYS.KUPW$WORKER 0x17c15e530 9028 package body SYS.KUPW$WORKER 0x17c15e530 4185 package body SYS.KUPW$WORKER 0x17c15e530 9725 package body SYS.KUPW$WORKER 0x17c15e530 1775 package body SYS.KUPW$WORKER 0x172f16550 2 anonymous block ORA-39014: One or more workers have prematurely exited. ORA-39029: worker 7 with process name "DW00" prematurely terminated ORA-31671: Worker process DW00 had an unhandled exception. ORA-04030: out of process memory when trying to allocate 120048 bytes (session heap,kuxLpxAlloc) ORA-06512: at "SYS.KUPW$WORKER", line 1838 ORA-06512: at line 2 ORA-39126: Worker unexpected fatal error in KUPW$WORKER.LOAD_METADATA [SELECT process_order, flags, xml_clob, NVL(dump_fileid, :1), NVL(dump_position, :2), dump_length, dump_allocation, NVL(value_n, 0), grantor, object_row, object_schema, object_long_name, partition_name, subpartition_name, processing_status, processing_state, base_object_type, base_object_schema, base_object_name, base_process_order, property, size_estimate, in_progress, original_object_schema, original_object_name, creation_level, object_int_oid FROM "SYS"."SYS_IMPORT_FULL_01" WHERE process_order between :3 AND :4 AND duplicate = 0 AND processing_state NOT IN (:5, :6, :7) ORDER BY process_order] ORA-19505: failed to identify file "/u01/oracle/expdp/wxlun0402.dmp" ORA-27037: unable to obtain file status Linux-x86_64 Error: 2: No such file or directory Additional information: 3 ORA-06512: at "SYS.DBMS_SYS_ERROR", line 95 ORA-06512: at "SYS.KUPW$WORKER", line 9001 ----- PL/SQL Call Stack ----- object line object handle number name 0x17c15e530 20462 package body SYS.KUPW$WORKER 0x17c15e530 9028 package body SYS.KUPW$WORKER 0x17c15e530 4185 package body SYS.KUPW$WORKER 0x17c15e530 9725 package body SYS.KUPW$WORKER 0x17c15e530 1775 package body SYS.KUPW$WORKER 0x172f16550 2 anonymous block ORA-39014: One or more workers have prematurely exited. ORA-39029: worker 9 with process name "DW00" prematurely terminated ORA-31671: Worker process DW00 had an unhandled exception. ORA-04030: out of process memory when trying to allocate 16048 bytes (session heap,kuxLpxAlloc) ORA-06512: at "SYS.KUPW$WORKER", line 1838 ORA-06512: at line 2 ORA-39126: Worker unexpected fatal error in KUPW$WORKER.LOAD_METADATA [SELECT process_order, flags, xml_clob, NVL(dump_fileid, :1), NVL(dump_position, :2), dump_length, dump_allocation, NVL(value_n, 0), grantor, object_row, object_schema, object_long_name, partition_name, subpartition_name, processing_status, processing_state, base_object_type, base_object_schema, base_object_name, base_process_order, property, size_estimate, in_progress, original_object_schema, original_object_name, creation_level, object_int_oid FROM "SYS"."SYS_IMPORT_FULL_01" WHERE process_order between :3 AND :4 AND duplicate = 0 AND processing_state NOT IN (:5, :6, :7) ORDER BY process_order] ORA-19505: failed to identify file "/u01/oracle/expdp/wxlun0402.dmp" ORA-27037: unable to obtain file status Linux-x86_64 Error: 2: No such file or directory Additional information: 3 ORA-06512: at "SYS.DBMS_SYS_ERROR", line 95 ORA-06512: at "SYS.KUPW$WORKER", line 9001 ----- PL/SQL Call Stack ----- object line object handle number name 0x17c15e530 20462 package body SYS.KUPW$WORKER 0x17c15e530 9028 package body SYS.KUPW$WORKER 0x17c15e530 4185 package body SYS.KUPW$WORKER 0x17c15e530 9725 package body SYS.KUPW$WORKER 0x17c15e530 1775 package body SYS.KUPW$WORKER 0x172f16550 2 anonymous block ORA-39014: One or more workers have prematurely exited. ORA-39029: worker 11 with process name "DW00" prematurely terminated ORA-31671: Worker process DW00 had an unhandled exception. ORA-04030: out of process memory when trying to allocate 120048 bytes (session heap,kuxLpxAlloc) ORA-06512: at "SYS.KUPW$WORKER", line 1838 ORA-06512: at line 2 ORA-39126: Worker unexpected fatal error in KUPW$WORKER.LOAD_METADATA [SELECT process_order, flags, xml_clob, NVL(dump_fileid, :1), NVL(dump_position, :2), dump_length, dump_allocation, NVL(value_n, 0), grantor, object_row, object_schema, object_long_name, partition_name, subpartition_name, processing_status, processing_state, base_object_type, base_object_schema, base_object_name, base_process_order, property, size_estimate, in_progress, original_object_schema, original_object_name, creation_level, object_int_oid FROM "SYS"."SYS_IMPORT_FULL_01" WHERE process_order between :3 AND :4 【本文来自鸿网互联 (http://www.68idc.cn)】AND duplicate = 0 AND processing_state NOT IN (:5, :6, :7) ORDER BY process_order] ORA-19505: failed to identify file "/u01/oracle/expdp/wxlun0402.dmp" ORA-27037: unable to obtain file status Linux-x86_64 Error: 2: No such file or directory Additional information: 3 ORA-06512: at "SYS.DBMS_SYS_ERROR", line 95 ORA-06512: at "SYS.KUPW$WORKER", line 9001 ----- PL/SQL Call Stack ----- object line object handle number name 0x17c15e530 20462 package body SYS.KUPW$WORKER 0x17c15e530 9028 package body SYS.KUPW$WORKER 0x17c15e530 4185 package body SYS.KUPW$WORKER 0x17c15e530 9725 package body SYS.KUPW$WORKER 0x17c15e530 1775 package body SYS.KUPW$WORKER 0x172f16550 2 anonymous block Import> exit ^ [oracle@rac1 ~]$ logout
由于是在Processing object type SCHEMA_EXPORT/TABLE/STATISTICS/TABLE_STATISTICS报的错,错误和统计信息有关,网上介绍说是一个bug,impdp时加上EXCLUDE=STATISTICS,导入后手动收集统计信息。
尝试如下,导入完成:
[oracle@rac1 ~]$ impdp \'/ as sysdba \' directory=expdp dumpfile=wxlun0402.dmp logfile=wxlun0402.impdplog REMAP_TABLESPACE=wxlun:wxlun_DATA REMAP_SCHEMA=wxlun:wxlun0402 EXCLUDE=STATISTICS Import: Release 11.2.0.3.0 - Production on Thu Apr 2 12:52:04 2015 Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP, Data Mining and Real Application Testing options Master table "SYS"."SYS_IMPORT_FULL_02" successfully loaded/unloaded Starting "SYS"."SYS_IMPORT_FULL_02": "/******** AS SYSDBA" directory=expdp dumpfile=wxlun0402.dmp logfile=wxlun0402.impdplog REMAP_TABLESPACEwxlun:wxlun_DATA REMAP_SCHEMA=wxlun:wxlun0402 EXCLUDE=STATISTICS Processing object type SCHEMA_EXPORT/USER ORA-31684: Object type USER:"wxlun0402" already exists Processing object type SCHEMA_EXPORT/SYSTEM_GRANT Processing object type SCHEMA_EXPORT/ROLE_GRANT Processing object type SCHEMA_EXPORT/DEFAULT_ROLE Processing object type SCHEMA_EXPORT/PRE_SCHEMA/PROCACT_SCHEMA Processing object type SCHEMA_EXPORT/TABLE/TABLE Processing object type SCHEMA_EXPORT/TABLE/INDEX/INDEX Processing object type SCHEMA_EXPORT/TABLE/CONSTRAINT/CONSTRAINT Processing object type SCHEMA_EXPORT/TABLE/COMMENT Job "SYS"."SYS_IMPORT_FULL_02" completed with 1 error(s) at 13:26:19

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Usingtemporary在MySQL查询中表示需要创建临时表,常见于使用DISTINCT、GROUPBY或非索引列的ORDERBY。可以通过优化索引和重写查询避免其出现,提升查询性能。具体来说,Usingtemporary出现在EXPLAIN输出中时,意味着MySQL需要创建临时表来处理查询。这通常发生在以下情况:1)使用DISTINCT或GROUPBY时进行去重或分组;2)ORDERBY包含非索引列时进行排序;3)使用复杂的子查询或联接操作。优化方法包括:1)为ORDERBY和GROUPB


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