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RE: ORA-600 Error [Possible Data Loss]

From: MacGregor, Ian A. <ian_at_SLAC.Stanford.EDU>
Date: Mon, 22 Sep 2003 14:14:39 -0800
Message-ID: <F001.005D0BA5.20030922141439@fatcity.com> 





We have found the cause of the problem.  If populate the varray for a row with 100 values, copy that data to a temporary table and then perform split and exchange partition operations everything is fine.  However if we populate the varray with 1000 values for a row and then perform the same operations.  Selecting from the partition results in the error.



For those wanting details ...



create or replace type int_values as varray(16384) of number(38);
create table arch_wave_i


(pv_id number(38),


timestamp date,


nanosecs number(9),


stat number(8),


sevr number(8),


ostat number(16),


value int_values)


partition by range (timestamp)


( partition first values less than


(TO_DATE('01/01/2003 00:00:00', 'mm/dd/yyyy hh24:mi:ss')),
partition bin values less than (MAXVALUE) );
create index archive_wave_index on archive_wave_i (timestamp, pv_id) local;
create table arch_wave_i


(pv_id number(38),


timestamp date,


nanosecs number(9),


stat number(8),


sevr number(8),


ostat number(16),


value int_values)


partition by range (timestamp)


( partition first values less than


(TO_DATE('01/01/2003 00:00:00', 'mm/dd/yyyy hh24:mi:ss')),
partition SEP1803 values less than


(TO_DATE('09/19/2003 00:00:00', 'mm/dd/yyyy hh24:mi:ss')),
partition bin values less than (MAXVALUE) );
create index arch_wave_i_index on arch_wave_i (timestamp, pv_id) local;
To create the error


To recreate the problem:


1. Populate arch_wave_i with one or more rows that have the
following characteristics:


a. the timestamp field is >= '09/18/2003 00:00:00' and
< '09/19/2003 00:00:00'


b. the value field is an array of 1000 or more integer
values (the actual values do not matter)
c. the other fields (pv_id, nanosecs, stat, sevr, ostat)
may be set to 0

2. create table temp_wave_i as select * from arch_wave_i;
3. create index temp_wave_i_index on temp_wave_i (timestamp, pv_id);
4. alter session set nls_date_format = 'mm/dd/yyyy hh24:mi:ss';
5. alter table archive_wave_i split partition bin at


('09/19/2003 00:00:00') into


(partition SEP1803, partition bin);


6. alter table archive_wave_i exchange partition SEP1803 with
table temp_wave_i including indexes with validation;
7. select * from archive_wave_i partition (SEP1803);
This results in one of the following messages:
a. ORA-00600: internal error code, arguments:
[koxsisz1], [1], [], [], [], [], [], []


b. ORA-00600: internal error code, arguments:
[kcbgtcr_4], [2094072], [0], [1], [], [], [], []
Sometimes the second argument is 2094096 or 2094120




Ian MacGregor


Stanford Linear Accelerator Center


ian_at_slac.stanford.edu



-----Original Message-----


Sent: Thursday, September 18, 2003 1:35 PM
To: Multiple recipients of list ORACLE-L




Ian,



I was going to recommend to try exporting your problematic partition with direct=y, that way normal SQL query processing layer is bypassed in Oracle kernel & all data belonging to segment is read directly (thus hopefully avoiding the koxsisz1 crash) ... but I'm not sure whether varrays don't turn exp to conventional as is the case with objects and LOBs...



Tanel.






> The error was first discovered when we tried to move a partition. ( 

> alter



table archive_wave_i move partition SEP1103 tablespace
CHANARCH_NLC_2003_09_DATA).   The table was renamed to OLD_archive_wave_i
once it was determined that no new varray data was accessible. My theory is that this is logical corruption of the data dictionary, but I have not worked out the particulars.

>




> Selecting via an index or FTS does not matter.  What type of error do 

> you



believe koxsisz1 to be?

>




> Ian MacGregor

> Stanford Linear Accelerator Center

> ian_at_SLAC.Stanford.edu


>
>
>




> -----Original Message-----

> Sent: Thursday, September 18, 2003 4:13 AM

> To: Multiple recipients of list ORACLE-L


>
>




> Hi!


>




> If even Oracle hasn't seen this error, then probably we can't help 

> much



here either. Just a wild guess, try to move this partition to another location and select from it then (although koxsisz1 isn't a data layer error as far as I understand). Try to read using index if available, then using full hint etc..

>




> Tanel.


>




> ----- Original Message -----

> To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com>

> Sent: Thursday, September 18, 2003 3:04 AM


>
>


> > This is not my week ...

> >

> > Has anyone seen anything like this

> >



> > select value from chanarch_nlc.old_archive_wave_i partition 

> > (SEP1603)


> where pv_id =

> >                                *

> > ERROR at line 1:

> > ORA-00600: internal error code, arguments: [koxsisz1], [1], [], [], 

> > [],

> [], [],

> > []

> >

> > I have Oracle support working on the problem.    They say they have

never


> seen such an error before.  Oracle though often tells me that. The 

> table



looks like


> >

> > Name                                      Null?    Type

> > ----------------------------------------- --------

> > -----------------------

> -----

> > PV_ID                                              NUMBER(38)


> > TIMESTAMP                                          DATE


> > NANOSECS                                           NUMBER(9)


> > STAT                                               NUMBER(8)


> > SEVR                                               NUMBER(8)


> > OSTAT                                              NUMBER(16)


> > VALUE




CHANARCH_NLC.INT_VALUES



> >

> > The last column is a varray.  I can retrieve any of the other 

> > columns from

> that partition.

> > I can also retrieve the value column from any partition before 

> > September

> 11, 2003.

> > Any partition after that fails with the 0ra-600 error  when  the 

> > value

> column is selected.

> >

> > DBV at first gave errors along the lines of

> >

> > BV-00102: File I/O error on FILE

> > (/u9/oradata/NLCO/chanarch_nlc_active_data01.dbf) during end read op 

> > eration (-1)

> >

> > The file is 2018 MB in size.  But resizing the files downwards and 

> > back up

> again  fixed

> > That problem.  The files are allowed to autoextend with 2018 being 

> > the

> maximum size.

> >

> > This is not the same database which had the  RAID problem.

> >

> > Ian MacGregor

> > Stanford Linear Accelerator Center

> > ian_at_SLAC.Stanford.edu

> >

> >

> > --

> > Please see the official ORACLE-L FAQ: http://www.orafaq.net

> > --

> > Author: MacGregor, Ian A.

> >   INET: ian_at_SLAC.Stanford.EDU

> >

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> >


>
>




> --

> Please see the official ORACLE-L FAQ: http://www.orafaq.net

> -- 

> Author: Tanel Poder

>   INET: tanel.poder.003_at_mail.ee


>


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> --

> Please see the official ORACLE-L FAQ: http://www.orafaq.net

> -- 

> Author: MacGregor, Ian A.

>   INET: ian_at_SLAC.Stanford.EDU


>


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> San Diego, California        -- Mailing list and web hosting services

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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: Tanel Poder
  INET: tanel.poder.003_at_mail.ee

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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: MacGregor, Ian A.
  INET: ian_at_SLAC.Stanford.EDU

Fat City Network Services    -- 858-538-5051 http://www.fatcity.com
San Diego, California        -- Mailing list and web hosting services
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Received on Mon Sep 22 2003 - 17:14:39 CDT












Original text of this message













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