What is the FREELIST GROUPS for the table?
Waleed
-----Original Message-----
Sent: Tuesday, December 03, 2002 3:50 PM
To: Multiple recipients of list ORACLE-L
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
[EMAIL PROTECTED]
Each new user of a new system uncovers a new class of bugs. -- Kernighan
JayMiller@TDWater
house.com To:
[EMAIL PROTECTED]
Sent by: cc:
[EMAIL PROTECTED] 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
--- Richard Ji <[EMAIL PROTECTED]> wrote:
> Rachel,
>
> What I mean to say is when there are a lot of contiguous smaller free
> extents.
> Then coalesce will produce a larger free extent so Jay wouldn't have
> to
> add a datafile for his table to grow.
>
> On the automatically coalescing part, I believe SMON will only
> coalesce
> when pctincrease != 0, or has that changed? My understand could be
> outdated.
> With LMT one doesn't have to worry about it.
>
> Have a Happy Thanksgiving.
>
> PS, I am in New York too, would love to meet you in person some time.
> Have
> you
> talked to Priscilla lately?
>
> Richard Ji
>
>
> -----Original Message-----
> Sent: Friday, November 29, 2002 5:29 PM
> To: Multiple recipients of list ORACLE-L
>
>
> how would coalescing help even if there were a lot of smaller free
> extents? Oracle would do the coalesce automatically, there would be
> no
> difference between manually coalescing or allowing Oracle to do it
> when
> a new extent was needed.
>
>
> --- Richard Ji <[EMAIL PROTECTED]> wrote:
> > Coalescing might help if there are many smaller free extents
> > that can be coalesced. But that still doesn't solve Jay's problem.
> > Because he doesn't want the table to extent at all since he just
> > deleted
> > 2 million rows so there are plenty of space within the segment
> > itself.
> > Those free blocks should be used, unless he is doing a direct path
> > insert
> > which will only use space above the HWM.
> >
> > Richard Ji
> >
> > -----Original Message-----
> > Sent: Friday, November 29, 2002 2:05 PM
> > To: Multiple recipients of list ORACLE-L
> >
> >
> > did u coalesced the tablespaces?
> >
> > -----Original Message-----
> > Sent: sexta-feira, 29 de Novembro de 2002 17:59
> > To: Multiple recipients of list ORACLE-L
> >
> >
> > Okay, I can't figure this one out. Earlier this week I got an
> > ORA-1653:
> > unable to extend table on a really big table. However this was
> just
> > after I
> > had deleted over 2 million rows in the table and we were only
> > inserting
> > 30,000.
> >
> > 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.
> >
> > We tried the insert again and got the same error so I added a
> > datafile and
> > it went through (using about 40Meg of space in the new datafile).
> >
> > Why isn't it making use of the existing blocks on the freelist?
> >
> > Oracle 8.1.7.2
> > Solaris 2.6
> > PCTFREE = 10
> > PCTUSED = 75
> > Block Size = 4K
> >
> >
> > Jay Miller
> > --
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> > --
> > Author: Miller, Jay
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