【故障處理】imp-00051,imp-00008

【故障處理】imp-00051,imp-00008

1.1  BLOG文件結構圖

1.2  故障分析及解決過程

imp匯入報錯：

IMP-00051: Direct path exported dump file contains illegal column length

IMP-00008: unrecognized statement in the export file

IMP-00009: abnormal end of export file

[oracle@lhrdb ~]$ oerr imp 51

00051, 00000, "Direct path exported dump file contains illegal column length"

// *Cause:  An invalid column length was encountered while processing column

//          pieces."

// *Action: Check to make sure the export file is not corrupted, or else

//          report this to Oracle Worldwide Support as an Import/Export

//          internal bug and submit the

//          export file.

由於使用了direct=y的方式匯出，所以匯入的時候報錯。MOS上是針對分割槽表的某一個空的分割槽匯入的時候會報該錯，但是客戶這邊的表不是分割槽表，dmp檔案太大，不能做具體原因分析。給出的解決方案為：針對報錯的表單獨匯出，並採用parfile引數。

[ZFZHLHRDB1:oracle]:/oracle>more /tmp/scottfile.par

tables=scott.emp,scott.dept

exp \'/ AS SYSDBA\'   file=/tmp/test_query_lhr_scott_01.dmp  parfile=/tmp/scottfile.par log=/tmp/test_query_lhr_scott_01.log

參考的MOS文件：

Traditional Import (IMP) Raises Error IMP-51 Direct Path Exported Dump File Contains Illegal Column Length (文件 ID 1403865.1)

ALERT Direct Path Export (EXP) Corrupts The Dump If An Empty Table Partition Exists (文件 ID 1604983.1)

The traditional export utility is de-supported beginning with the version 11g and is no more maintained.

exp和imp從11g開始不再維護。

1.3  MOS

1.3.1  ALERT Direct Path Export (EXP) Corrupts The Dump If An Empty Table Partition Exists (文件 ID 1604983.1)

In this Document

APPLIES TO:

DESCRIPTION

You performed a direct path export (table, schema or full) using the traditional export utility (EXP). If the exported objects include an empty table partition, then the export dump is corrupt and cannot be imported. 

OCCURRENCE

Only exp versions >= 11.2.0.1 are affected. The traditional export utility is de-supported beginning with the version 11g and is no more maintained.

SYMPTOMS

During import you may see one of the following issues:

Or:

Or:

Import silently skips a part of the dump, tables are missing and later constraints cannot be created.

This is below demonstrated with a simple test:

This will show:

but the import breaks with error:

WORKAROUND

If you perform direct path exports using a version greater or equal 11.2.0.1 and you see the messages:

in the export output (or log file), then you obtain a corrupt dump. You can verify the dump with the commands:

#> imp user/passw full=y

or:

#> imp user/passw full=y show=y

which will show you one of the behaviors listed above.

To workaround this please use:

- conventional path export (exp direct=n)

Or:

- materialize the empty partitions before running direct path exports:

Or:

- DataPump export (expdp)

HISTORY

[03-DEC-2013] - Document created

REFERENCES

1.3.2  Traditional Import (IMP) Raises Error IMP-51 Direct Path Exported Dump File Contains Illegal Column Length (文件 ID 1403865.1)

In this Document

APPLIES TO:

SYMPTOMS

An original import of an export dump file created from an 11.2.0.2 database with DIRECT=Y fails with:

CAUSE

The exact cause is undetermined in this case.

SOLUTION

Instead of using the traditional export/import, use the DataPump export/import as a workaround.

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