Export: Release 11.2.0.4.0 - Production on Sat Jun 11 01:00:02 2016
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
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Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options
Starting "SYS"."SYS_EXPORT_SCHEMA_04": "/******** AS SYSDBA" directory=bak_dump dumpfile=exp_unspaydb_20160611.dmp logfil
e=exp_unspaydb_20160611.log schemas=vnv parallel=6
Estimate in progress using BLOCKS method...
Processing object type SCHEMA_EXPORT/TABLE/TABLE_DATA
Total estimation using BLOCKS method: 21.77 GB
Processing object type SCHEMA_EXPORT/USER
. . exported "VNV"."TRANSACTION_HIS" 2.949 GB 10892506 rows
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/SYNONYM/SYNONYM
Processing object type SCHEMA_EXPORT/SEQUENCE/SEQUENCE
Processing object type SCHEMA_EXPORT/TABLE/TABLE
Processing object type SCHEMA_EXPORT/TABLE/GRANT/OWNER_GRANT/OBJECT_GRANT
Processing object type SCHEMA_EXPORT/TABLE/COMMENT
Processing object type SCHEMA_EXPORT/FUNCTION/FUNCTION
Processing object type SCHEMA_EXPORT/PROCEDURE/PROCEDURE
Processing object type SCHEMA_EXPORT/FUNCTION/ALTER_FUNCTION
Processing object type SCHEMA_EXPORT/PROCEDURE/ALTER_PROCEDURE
Processing object type SCHEMA_EXPORT/TABLE/INDEX/INDEX
Processing object type SCHEMA_EXPORT/TABLE/INDEX/FUNCTIONAL_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/INDEX/STATISTICS/FUNCTIONAL_INDEX/INDEX_STATISTICS
Processing object type SCHEMA_EXPORT/TABLE/CONSTRAINT/REF_CONSTRAINT
Processing object type SCHEMA_EXPORT/TABLE/STATISTICS/TABLE_STATISTICS
. . exported "VNV"."TRANSACTION" 2.193 GB 5947080 rows
. . exported "VNV"."T_BANK_TRANS_DC_HIS" 1.938 GB 1316266 rows
ORA-31693: Table data object "VNV"."TRANSACTION_BAK_0518" failed to load/unload and is being skipped due to error:
ORA-31617: unable to open dump file "/data/orabackup/exp/exp_unspaydb_20160611.dmp" for write
ORA-19505: failed to identify file "/data/orabackup/exp/exp_unspaydb_20160611.dmp"
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
ORA-31693: Table data object "VNV"."ID_CARD_INFO" failed to load/unload and is being skipped due to error:
ORA-31617: unable to open dump file "/data/orabackup/exp/exp_unspaydb_20160611.dmp" for write
ORA-19505: failed to identify file "/data/orabackup/exp/exp_unspaydb_20160611.dmp"
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
数据泵的并行度设置为10，同时向10个DUMPFILE中写入数据。在写入时出现ORA-31693、ORA-29913和ORA-31617错误。
发现对于RAC环境而言，Oracle会尝试将并行导出放到两个节点上，而由于DIRECTORY是本地磁盘，且在另外一个节点上没有建立同样的目录，因此打开文件报错的信息。
那么如果想要使用RAC上的并行导出，确保相同的目录在两个节点上同时存在。如果只想在一个节点上执行数据泵的导出那么就不要使用并行方式。
