On Wed, 20 Oct 2004 08:00:55 +0100, Gary Doades [EMAIL PROTECTED] wrote:
Unlike many other database engines the shared buffers of Postgres is
not a private cache of the database data. It is a working area shared
between all the backend processes. This needs to be tuned for number
of
On Wed, 20 Oct 2004 09:52:25 -0600, Scott Marlowe [EMAIL PROTECTED] wrote:
1: Is the bulk insert being done inside of a single transaction, or as
individual inserts?
The bulk insert is being done by COPY FROM STDIN. It copies in 100,000
rows at a time, then disconnects, reconnects, and copies
On Wed, 20 Oct 2004 18:47:25 +0100, Gary Doades [EMAIL PROTECTED] wrote:
What about triggers? Also constraints (check contraints, integrity
constraints) All these will slow the inserts/updates down.
No triggers or constraints. There are some foreign keys, but the
tables that have the inserts
On Wed, 20 Oct 2004 13:35:43 -0500, Bruno Wolff III [EMAIL PROTECTED] wrote:
You might not need to do the vacuum fulls that often. If the your hourly
vacuums have a high enough fsm setting, they should be keeping the database
from continually growing in size. At that point daily vacuum fulls
On Wed, 20 Oct 2004 19:59:38 +0100, Gary Doades [EMAIL PROTECTED] wrote:
Hmm, that seems a bit slow. How big are the rows you are inserting? Have you checked
the cpu and IO usage during the inserts? You will need to do some kind of cpu/IO
monitoring to determine where the bottleneck is.
The
On Wed, 20 Oct 2004 20:49:54 +0100, Gary Doades [EMAIL PROTECTED] wrote:
Is this the select(1) query? Please post an explain analyze for this and any other
slow
queries.
I think it took so long 'cause it wasn't cached. The second time I ran
it, it took less than a second. How you can tell if
On Wed, 20 Oct 2004 23:43:54 +0100, Gary Doades [EMAIL PROTECTED] wrote:
You will need to tell us the number of updates/deletes you are having. This will
determine the vacuum needs. If the bulk of the data is inserted you may only need to
analyze frequently, not vacuum.
In order to get more
On Tue, 19 Oct 2004 00:48:34 -0500, Thomas F. O'Connell
[EMAIL PROTECTED] wrote:
Ah, yes. You're right.
Presumably you could use the hidden query from \dn in psql to get the
tables necessary for a script. That's the next best thing I can think
of.
I wrote a script to do the vacumming. I
Is there a way to remove idle connections? My postgres server is
getting serveral hundred idle connections. It's due to a postgres .NET
provider not closing the connections properly. I don't want to kill
them all, or restart postgres everytime the connections go crazy.
-Josh
On Tue, 19 Oct 2004 19:24:23 +0100, Gary Doades [EMAIL PROTECTED] wrote:
I would have though it would be better to fix the client application. If the
app is not closing connections then you may be leaking handles and
memory.
What .NET provider is this? Are you sure it is not just normal
I know this is kinda a debate, but how much ram do I give postgres?
I've seen many places say around 10-15% or some say 25%... If all
this server is doing is running postgres, why can't I give it 75%+?
Should the limit be as much as possible as long as the server doesn't
use any swap?
Any
On Tue, 19 Oct 2004 17:42:16 -0400, Tom Lane [EMAIL PROTECTED] wrote:
The short answer is no; the sweet spot for shared_buffers is usually on
the order of 1 buffers, and trying to go for 75% of RAM isn't
going to do anything except hurt. For the long answer see the
pgsql-performance list
Is there a way to vacuum all tables in a schema? Or will I need to
write a script to do it?
-Josh
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TIP 4: Don't 'kill -9' the postmaster
On Mon, 18 Oct 2004 15:35:53 -0500, Thomas F. O'Connell
[EMAIL PROTECTED] wrote:
Are you looking for something different than vacuumdb?
http://www.postgresql.org/docs/7.4/static/app-vacuumdb.html
-tfo
I think so. As far as I can tell, you can either vacuum a whole db, or
individual tables.
On 17 Oct 2004 01:24:27 -0400, Greg Stark [EMAIL PROTECTED] wrote:
Uh, not in Postgres. Perhaps you're thinking of another database system?
In fact I suspect it's slowing down your system somewhat.
--
greg
So, there is no locking taking place during inserts at all? Or updates?
Also, where
On Sat, 16 Oct 2004 00:59:34 -0600, Michael Fuhr [EMAIL PROTECTED] wrote:
Add some RAISE INFO statements to print variables' values at key
places. I wonder if one of your SUMs is returning NULL, causing
your addition to evaluate to NULL. If so, then perhaps you should
use COALESCE to turn
On Sat, 16 Oct 2004 10:20:35 -0600, Michael Fuhr [EMAIL PROTECTED] wrote:
Glad you got it working.
A question about your design: you appear to have a tblBatchHistory_X
table for each iId value in tblServers. Is there a reason for doing
that instead of having a single tblBatchHistory table
On Fri, 15 Oct 2004 09:11:05 +0800, Keow Yeong Huat Joseph
[EMAIL PROTECTED] wrote:
Hi, Can anyone tell me how to unsubscribe my address from the mailing list.
Thanks.
Regards
Joseph
You can do it the same place you sign up at.
I'm having a problem with a value coming out of a loop.
CREATE OR REPLACE FUNCTION funmessagespermintotal()
RETURNS int8 AS
'
DECLARE
this_rServer record;
this_rSum record;
this_iSum bigint;
this_iTotal bigint;
this_iMsgsPerMin bigint;
this_sQuery varchar(500);
BEGIN
this_iTotal := 0;
FOR
Is there a way to do dirty reads on postgres?
If there is an insert of a million records or so, is there a way to
select from those records before it's committed?
-Josh
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TIP 8: explain analyze is your friend
How can a delete rows from a table that has foreign key constraints?
Here is how I have it set up.
I have 2 tables, tableA has fields and id's and tableB has fields that
reference tableA's id's. I'm not able to do this
BEGIN TRANSACTION;
DELETE FROM tableB
WHERE tableAid = 5;
DELETE FROM
On Fri, 8 Oct 2004 23:15:24 +0200, Martijn van Oosterhout
[EMAIL PROTECTED] wrote:
You havn't posted the exact error message. You'll have to if you want
people to properly explain what's going on...
update or delete on tblheadings violates foreign key constraint $1
on tblheadings DETAIL: Key
On Fri, 8 Oct 2004 18:14:50 -0600, Michael Fuhr [EMAIL PROTECTED] wrote:
This looks like tblheadings has a foreign key reference to itself.
Is this the *exact* error message, cut-and-pasted? What do your
table definitions look like?
--
Michael Fuhr
There isn't a foreign key reference to
I keep getting this error.
DETAIL: Failed system call was shmget(key=5432001, size=34037760, 03600).
HINT: This error usually means that PostgreSQL's request for a shared
memory segment exceeded your kernel's SHMMAX parameter. You can
either reduce the request size or reconfigure the kernel
On Thu, 30 Sep 2004 13:39:57 -0500, Josh Close [EMAIL PROTECTED] wrote:
I keep getting this error.
DETAIL: Failed system call was shmget(key=5432001, size=34037760, 03600).
HINT: This error usually means that PostgreSQL's request for a shared
memory segment exceeded your kernel's SHMMAX
On Wed, 29 Sep 2004 14:40:34 -0500, Josh Close [EMAIL PROTECTED] wrote:
Is there a way to do COPY FROM STDIN from sql? So, remotely I could
run the copy command and somehow push the info over instead of having
it on the server.
For those who are curious, I found a php implementation
On 30 Sep 2004 16:40:58 -0400, Greg Stark [EMAIL PROTECTED] wrote:
Josh Close [EMAIL PROTECTED] writes:
To reduce the request size (currently 34037760 bytes),
...
root # sysctl -a | grep shm
kernel.shmmni = 4096
kernel.shmall = 31584400
kernel.shmmax = 31584400
So it's
Is there a way to do COPY FROM STDIN from sql? So, remotely I could
run the copy command and somehow push the info over instead of having
it on the server.
-Josh
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TIP 6: Have you searched our list archives?
What is the best module to use for mssql to set up a linked server
with postgresql?
-Josh
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TIP 9: the planner will ignore your desire to choose an index scan if your
joining column's datatypes do not match
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