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RE: ORA-1653: unable to extend table - Why?

From: Miller, Jay <JayMiller_at_TDWaterhouse.com>
Date: Tue, 03 Dec 2002 12:49:44 -0800
Message-ID: <F001.005114D7.20021203124944@fatcity.com>


Just for grins, here's the level of support I'm getting on my Oracle TAR:



You had stated earlier:
1/ After reanalyzing the table I saw the following stats in DBA_TABLES: num_freelist_blocks: 2266966
avg_space_freelist_blocks: 3895
Unless I'm misreading this I should have had over 8Gig available for inserts.

2/ I've had to add another data file and it has already grown to 600 Meg.

If the table is only 600 mb, then there is no way that it can have 8 gb of free space. Since you have a lot of blocks with some free space, you may want to export and import the table back to re-org the table...


Someone should inform these people that a table can consist of more than one datafile...

-----Original Message-----
Sent: Tuesday, December 03, 2002 11:54 AM To: Multiple recipients of list ORACLE-L

I had one thought.
The Freelist parameter for this table is only set to 1. Is it possible that if it gets tied up with contention for the freelist that it grabs a new extent?

I see that some of these blocks are being written to, the num_freelist_blocks is now down to 2095705. But the new data file has grown to 600 Meg.

I've opened a TAR to see what Oracle says but I'm not encouraged by the first question they sent me (which was asking to query dba_free_space).

Jay

-----Original Message-----
Sent: Monday, December 02, 2002 6:14 PM
To: Multiple recipients of list ORACLE-L

One thing I haven't seen mentioned yet is what degree of parallelism is defined for the table?
What is the next extent size set to?
If the table is paralleled, EACH parallel worker will grab a next extent sized segment. (Been bit by
this a few times...)
How many indexes and are they in the same tablespace?

Ron Thomas
Hypercom, Inc
rthomas_at_hypercom.com
Each new user of a new system uncovers a new class of bugs. -- Kernighan  

                      JayMiller_at_TDWater

                      house.com                To:
ORACLE-L_at_fatcity.com
                      Sent by:                 cc:

                      root_at_fatcity.com         Subject:  RE: ORA-1653:
unable to extend table - Why?    
                      12/02/2002 02:04

                      PM

                      Please respond to

                      ORACLE-L

 

 





Yep, I agree that coalescing is irrelevant in my current situation. In any event there was no free space until I added the additional datafile but there was the 8gig of space on the freelists.

Jay

-----Original Message-----
Sent: Friday, November 29, 2002 8:54 PM
To: Multiple recipients of list ORACLE-L

Richard,

if pctincrease is zero, and there are a large number of contiguous smaller extents, SMON will not automatically coalesce the tablespace. However, whether or not SMON does an automatic coalesce, if you need an extent that is larger than any of the small ones, Oracle will coalesce those smaller extents to make the one you need. so Jay would not have needed to add a datafile no matter what, if he was not doing a direct path insert.

As for meeting in person.... there is a user group meeting on Dec 12 (check www.nyoug.org for details). You can meet me, and more importantly you can meet Tim Gorman, Dan Fink, Arup Nanda and Anita Bardeen, also of this list. They are all presenting :)

I saw Priscilla about a month ago, haven't talked with her since.

Rachel


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Author: Miller, Jay
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Received on Tue Dec 03 2002 - 14:49:44 CST

Original text of this message

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