Re: [ADMIN] Opinions on SSDs

2013-08-12 Thread Craig James
On Mon, Aug 12, 2013 at 8:28 AM, David F. Skoll wrote: > > 3) Our current workload peaks at about 5000 transactions per second; > you can assume about one-third to one-half of those are writes. Do > you think we can get away with 16 10Krpm SATA drives instead of the > SSDs? > pgbench peaks out a

Re: [ADMIN] Why sequence grant is separated from table?

2013-06-19 Thread Craig James
On Wed, Jun 19, 2013 at 2:35 AM, Rural Hunter wrote: > I really hate the error "permission denied for sequence x" when I > grant on a table but forget to grant additionally on the related sequence > to users. Can the permission of table and related sequences be merged? > You asked this quest

Re: [ADMIN] pg_restore

2013-05-20 Thread Craig James
On Mon, May 20, 2013 at 3:57 PM, Kasia Tuszynska wrote: > Hi Everybody, > > Has anyone ran into issues running pg_restore? > > It seems that between 8.3.8 and 9.0.5, 9.1.3 the behavior of pg_restore > has changed. > > ** ** > > Previously I was able to have several data owners with

Re: [ADMIN] Migration of server

2013-05-16 Thread Craig James
On Thu, May 16, 2013 at 11:04 AM, Oscar Calderon < ocalde...@solucionesaplicativas.com> wrote: > Hi everybody, this is my first message in this list. The company where i > work is bringing maintenance service of PostgreSQL to another company, > and currently they have installed PostgreSQL 9.1.1, a

Re: [ADMIN] Sr. Postgres DBA

2013-05-10 Thread Craig James
On Thu, May 9, 2013 at 5:01 PM, Miu, Monica wrote: > Hi all, > > ** ** > > My name is Monica Miu and I work in Talent Acquisition for Asurion Mobile > Applications > > > Basically you just pissed everyone off that you're trying to recruit. This is a highly technical discussion group, and po

Re: [ADMIN] top posting?

2013-05-06 Thread Craig James
Regarding top posting versus bottom posting, pretty almost everyone who has commented agrees that top versus bottom posting isn't the problem. It's laziness about editing, perhaps exacerbated by certain email systems that encourage that laziness. So how about this: instead of demanding "PLEASE DO

Re: [ADMIN] top posting?

2013-05-06 Thread Craig James
On Mon, May 6, 2013 at 11:25 AM, Szymon Guz wrote: > On 6 May 2013 20:15, Craig James wrote: > >> Just out of curiousity, I see comments like this all the time: >> >> > (*please* stop top-posting). >> > > We are reading from top to bottom. That's why

[ADMIN] top posting?

2013-05-06 Thread Craig James
Just out of curiousity, I see comments like this all the time: > (*please* stop top-posting). I've been participating in newsgroups since UUCP days, and I've never encountered a group before that encouraged bottom posting. Bottom posting has traditionally been considered rude -- it forces reader

Re: [ADMIN] Database encoding and collation

2013-04-20 Thread Craig James
On Fri, Apr 19, 2013 at 5:12 PM, Rodrigo Barboza wrote: > Hi guys. > I created a database with default encoding (SQL_ASCII) and default collate > (C). > I created a table test like this: > create table test (a varchar (10)); > Then i executed "insert into teste (a) values ('áéç&ã','Æ','ß'); > > Af

[ADMIN] Invalid SQL not rejected?

2013-04-11 Thread Craig James
Hmmm the subselect is invalid, but not rejected. The outer select returns every row in the customer_order_matches table. This seems pretty wrong. This is PG 9.2.1 running on Ubuntu. db=> select count(1) from customer_order_matches where customer_order_item_id in (select customer_order_item_

Re: [ADMIN] regexp_replace grief

2013-04-10 Thread Craig James
On Wed, Apr 10, 2013 at 4:59 PM, Armin Resch wrote: > Not sure this is the right list to vent about this but here you go: > > I) select regexp_replace('BEFORE.AFTER','(.*)\..*','\1','g') "Substring" > II) select regexp_replace('BEFORE.AFTER','(.*)\\..*','\\1','g') "Substring" > > Executing (II) a

Re: [ADMIN] Grant tables cascade to sequence?

2013-03-29 Thread Craig James
On Thu, Mar 28, 2013 at 10:56 PM, Rural Hunter wrote: > Hi, > > I encounter the same issue often: Granted update/insert to an user but > forgot to grant it on the related sequence. It's hard to understand that an > user has write access on table but not on necessary sequences. I think the > grant

Re: [ADMIN] select exact term

2013-03-28 Thread Craig James
On Thu, Mar 28, 2013 at 10:51 AM, Marc Fromm wrote: > Is there a way to create a select statement that will select a record if > the exact term is found in a field that contains the text to describe > something? > > ** ** > > If I create a select statement using WHERE description LIKE ‘art’

Re: [ADMIN] Notes or comments on columns in a table

2013-02-14 Thread Craig James
On Thu, Feb 14, 2013 at 11:09 AM, Campbell, Lance wrote: > PostgreSQL 9.2 > > When creating a table or altering a column of a table, is there a way to > add notes on a column? > > ** ** > > If not: > > I have a new enhancement request. When creating a table or altering a > column, it

Re: [ADMIN] Massive table bloat

2012-12-11 Thread Craig James
ponsibility for the potential data corruption that their policy will cause. Vendors that work with Postgres need to understand that "minor releases" won't break their applications, and that they should encourage their customers to keep their Postgres software up to date. If, on the oth

Re: [ADMIN] Massive table bloat

2012-12-11 Thread Craig James
tunity to upgrade to a new version of Postgres, although that might require changes to your app that you're not willing to make. Even if you don't upgrade the version (you should at least upgrade to the latest 8.4.x release), dump/restore will fix your problem. Craig James

Re: [ADMIN] Database archive solutions

2012-11-21 Thread Craig James
On Wed, Nov 21, 2012 at 1:21 AM, Gnanakumar wrote: > Hi, > > Our application requirement demands archiving of records, so that > performance/speed of the application is not compromised. So, am looking > out/evaluating on various techniques/solutions available for database > archiving, in general

Re: [ADMIN] Failed Login Attempts parameter

2012-11-15 Thread Craig James
On Thu, Nov 15, 2012 at 1:32 AM, Lukasz Brodziak wrote: > 2012/11/15 Craig Ringer > > Another option would be to monitor syslog or the csvlog and lock the > > user out by changing their password or revoking CONNECT rights if they > > trip the threshold. It wouldn't be as responsive to high-rate b

Re: [ADMIN] Odd DEALLOCATE statements never finish in 9.2?

2012-10-18 Thread Craig James
On Thu, Oct 18, 2012 at 2:54 PM, Tom Lane wrote: > Craig James writes: > > I installed 9.2 on our new server and am seeing something odd that > doesn't > > happen in 8.4: > > > postgres=# select datname, pid, usename, query from pg_stat_activity > where > &

[ADMIN] Odd DEALLOCATE statements never finish in 9.2?

2012-10-18 Thread Craig James
I installed 9.2 on our new server and am seeing something odd that doesn't happen in 8.4: postgres=# select datname, pid, usename, query from pg_stat_activity where query != ''; datname | pid | usename | query +---+--+-

Re: [ADMIN] 9.2 won't load C-language function

2012-10-11 Thread Craig James
On Wed, Oct 10, 2012 at 10:08 PM, Craig Ringer wrote: > On 10/11/2012 02:22 AM, Craig James wrote: > >> I have a C-language function I've been using on 8.4 for a long time. On >> 9.2 it won't load: >> >> test=# set search_path = public; >

[ADMIN] 9.2 won't load C-language function

2012-10-10 Thread Craig James
I have a C-language function I've been using on 8.4 for a long time. On 9.2 it won't load: test=# set search_path = public; SET test=# CREATE OR REPLACE FUNCTION chmoogle_session_id() RETURNS integer AS '/usr/local/pgsql/lib/libchmoogle.so', 'chmoogle_session_id' LANGUAGE c VOLATILE; ERROR: coul

[ADMIN] Mixing 8.4.x and 9.2.x clients and servers

2012-10-09 Thread Craig James
Is it OK to mix 9.2.x and 8.4.x clients and servers? Can they talk to each other? In other words, if I install 9.2 on a new server alongside older servers running 8.4.x, can clients on the 8.4 systems talk to 9.2 servers, and can the 9.2 clients talk to 8.4 servers? Thanks, Craig

Re: [ADMIN] Creating schema best practices

2012-10-03 Thread Craig James
On Wed, Oct 3, 2012 at 10:58 AM, Babay Adi, Hava wrote: > Thanks Craig for the useful information. > > ** ** > > On the same regard – Some of the mentioned modules in the mentioned > application use a set of tables which is logically separate (there are no > join statements with tables of ot

Re: [ADMIN] Creating schema best practices

2012-10-03 Thread Craig James
On Tue, Oct 2, 2012 at 11:54 AM, Babay Adi, Hava wrote: > Dear list, > > ** ** > > I’m new to PostgreSQL, planning now a migration to PostgreSQL and would > appreciate your help. > > ** ** > > One aspect of the migration is re-thinking our DB structure. > > ** ** > > The application

Re: [ADMIN] alter table alter column to resize a varchar

2012-09-27 Thread Craig James
On Thu, Sep 27, 2012 at 2:23 AM, Gary Stainburn wrote: > Hi folks. > > I'm planning on extending a field in one of my main tables using: > > alter table stock alter column type varchar(255); Why not just do alter table stock alter column type text; That is, do you really need a limit? The

Re: [ADMIN] how to allow integer overflow for calculating hash code of a string?

2012-09-21 Thread Craig James
On Thu, Sep 20, 2012 at 7:56 PM, Haifeng Liu wrote: > > On Sep 20, 2012, at 10:34 PM, Craig James wrote: > > > > On Thu, Sep 20, 2012 at 1:55 AM, Haifeng Liu wrote: > >> I want to write a hash function which acts as String.hashCode() in java: >> hash = has

Re: [ADMIN] how to allow integer overflow for calculating hash code of a string?

2012-09-20 Thread Craig James
On Thu, Sep 20, 2012 at 1:55 AM, Haifeng Liu wrote: > I want to write a hash function which acts as String.hashCode() in java: > hash = hash * 31 + s.charAt(i)... but I got integer out of range error. How > can I avoid this? I saw java do not care overflow of int, it just make the > result negati

Re: [ADMIN] Upgrading from 9.1.2 to 9.1.5

2012-09-10 Thread Craig James
On Mon, Sep 10, 2012 at 10:17 AM, Antoine Guidi wrote: > Another question, when I get a reply from the list, to which email > should I then reply? > To all? the User posting, or pgsql-admin@? > Either reply-to-all or reply to the pgsql-admin address. Either way, everyone gets it who participated

Re: [ADMIN] Upgrading from 9.1.2 to 9.1.5

2012-09-08 Thread Craig James
On Sat, Sep 8, 2012 at 1:26 PM, Sergey Konoplev wrote: > On Fri, Sep 7, 2012 at 3:20 AM, Bruce Momjian wrote: >> On Thu, Sep 6, 2012 at 05:55:05PM -0500, Antoine Guidi wrote: >>> Is it possible to do a pg_upgrade from 9.1.2 to 9.1.5 just using pg_upgrade? >>> For what I could read, the only exce

Re: [ADMIN] Schema diagramming tool?

2012-09-05 Thread Craig James
On Tue, Sep 4, 2012 at 9:48 PM, Sergey Konoplev wrote: > On Tue, Sep 4, 2012 at 8:35 PM, Craig James wrote: >> Can anyone recommend a good tool for producing a good drawing of an existing >> database schema? I don't need a design tool, but rather one that can take >&

Re: [ADMIN] Log-Shipping Standby Server: USE_FLOAT8_BYVAL compatibility error

2012-09-05 Thread Craig James
On Wed, Sep 5, 2012 at 2:21 AM, Mathias Breuninger > I wasn't aware of the binary problem with replication. > Maybe the PostgreSQL docs should emphasize the architecture restriction. That's sort of what "binary file" means -- a raw, architecture-specific representation of data that's optimized for

[ADMIN] Schema diagramming tool?

2012-09-04 Thread Craig James
Can anyone recommend a good tool for producing a good drawing of an existing database schema? I don't need a design tool, but rather one that can take an existing schema and produce a nice diagram that can be further edited and "beautified." I want something I can print and hang on the wall as a

Re: [ADMIN] Canot access PostgreSQL via psql -h (Vmware Fusion)

2012-08-24 Thread Craig James
On Fri, Aug 24, 2012 at 7:08 AM, Kevin Grittner wrote: > CS DBA wrote: > >> I've fired up 2 CentOS 6.2 VM's via vmware fusion 5 (on a mac). > >> psql -h 192.168.91.145 >> psql: could not connect to server: No route to host > > That problem has nothing to do with PostgreSQL; you might have > bette

Re: [ADMIN] JDBC keep alive issue

2012-08-11 Thread Craig James
On Fri, Aug 10, 2012 at 7:19 AM, Tom Lane wrote: > Haifeng Liu writes: > > I have a program running like a daemon, which analyze data and write to > postgresql 9.1 on centos 5.8. There is only one connection between my > program and the postgresql database, and I hope the connection may keep > a

Re: [ADMIN] Sometime Update is not modifying data inside database.

2012-07-30 Thread Craig James
On Mon, Jul 30, 2012 at 4:06 AM, Amit Kumar wrote: > All, > > I am facing a weired issue in PG 9.0.3. Sometime via application UPDATES > are not changing data in the database but in postgres logs its also not > raising any error. It is happening 2-3 times in a week. I have tried but > not able t

Re: [ADMIN] What happens when PostgreSQL fails to log to SYSLOG

2012-07-11 Thread Craig James
On Wed, Jul 11, 2012 at 10:47 AM, Arnold, Sandra wrote: > Tablelog would be ok for keeping up with transactions for tables. > However, we also need to audit who connects successfully and > unsuccessfully. As far as I am aware, if a user fails to log in > successfully, say three times, PostgreSQ

Re: [ADMIN] Data split -- Creating a copy of database without outage

2012-05-30 Thread Craig James
On Wed, May 30, 2012 at 8:14 AM, Igor Shmain wrote: > Thank you, Liu, for your suggestion. > > ** ** > > I might be missing something (I am new to postgres), but it seems that > your suggestion will not help much in my case. Since the number of db > requests will grow with time (more users

[ADMIN] C/C++ Linker Problem in Postgres extension functions

2012-05-04 Thread Craig James
I recently recompiled our Postgres extension functions and re-encountered a problem that I thought was solved. When I call our function, the code just hangs ... it sit there not executing, not using any CPU cycles. Forever. The process is still running, but seems to be waiting for ... what? I or

Re: [ADMIN] overcoming a recursive relationship in a sql statement

2012-02-01 Thread Craig James
On Wed, Feb 1, 2012 at 3:27 PM, wrote: > Hello, > > So I am not very advanced in SQL, and after a week of wild SQL > experimenting have finally reduced my thought process to a complete blank > on this query... > > I have a list of organizations in table:organization and a one to many > list of o

Re: [ADMIN] Establishing remote connections is slow

2012-01-17 Thread Craig James
2012/1/17 Mindaugas Žakšauskas > On Tue, Jan 17, 2012 at 7:23 PM, Tom Lane wrote: > > <..> Mindaugas, are you using SSL, > > and if so can you turn it off and see whether things change? > > (It should be safe to do so at least on the "localhost" connection, > > even if you feel your network is

Re: [ADMIN] Can't Insert from Staging Table to Production Table

2011-12-21 Thread Craig James
On 12/21/11 12:34 PM, Elliot Voris wrote: Hi, everyone I've got 32,404 rows of data in a staging table (marcxml_import) that I'm trying to get into my production table (biblio.record_entry) in my database (evergreen). When trying to do so, I'm getting the following error: evergreen=# INSERT

Re: [ADMIN] Giving postgres roles 'sudo'-like access

2011-12-19 Thread Craig James
On 12/19/11 10:04 AM, Mario Splivalo wrote: I need to have postgres role to be able to cancel queries run by that same role. I know that I can kill the client connection that started the query, but I also need to have that role connect to postgres and kill some of it's running queries. It's on

Re: [ADMIN] Deadlock on "select ... for update"?

2011-11-30 Thread Craig James
On 11/29/11 10:36 AM, Scott Marlowe wrote: On Tue, Nov 29, 2011 at 11:15 AM, Craig James wrote: Several times recently one of our databases has gotten stuck with the following situation: postgres=# select datname, procpid, usename, current_query from pg_stat_activity where current_query

[ADMIN] Deadlock on "select ... for update"?

2011-11-29 Thread Craig James
Several times recently one of our databases has gotten stuck with the following situation: postgres=# select datname, procpid, usename, current_query from pg_stat_activity where current_query != ''; datname | procpid | usename | current_query +-+--+

Re: [ADMIN] Dumping data using pg_dump after chrooting to a different partition

2011-10-24 Thread Craig James
On 10/24/11 3:10 PM, Krishnamurthy Radhakrishnan wrote: Hi, I am new to PostgreSQL. We are using PostgreSQL 9.0.2 on our linux server. We have an instance of PostgreSQL 9.0 running using the primary partition on the server. We want to use the pg_dump and psql programs to migrate the data duri

Re: [ADMIN] Londiste won't start with dual IP addresses

2011-08-19 Thread Craig James
On 8/19/11 1:40 AM, Marko Kreen wrote: On Fri, Aug 19, 2011 at 2:44 AM, Craig James wrote: We had to temporarily assign two IP addresses to our servers. After doing so and rebooting, Londiste will start, but it just sits there doing nothing. The logfile has zero bytes, and it doesn't

Re: [ADMIN] Londiste won't start with dual IP addresses

2011-08-19 Thread Craig James
On 8/19/11 1:40 AM, Marko Kreen wrote: On Fri, Aug 19, 2011 at 2:44 AM, Craig James wrote: We had to temporarily assign two IP addresses to our servers. After doing so and rebooting, Londiste will start, but it just sits there doing nothing. The logfile has zero bytes, and it doesn't

[ADMIN] Londiste won't start with dual IP addresses

2011-08-18 Thread Craig James
We had to temporarily assign two IP addresses to our servers. After doing so and rebooting, Londiste will start, but it just sits there doing nothing. The logfile has zero bytes, and it doesn't seem to connect to either the master or the slave database. We reconfigured Postgres to listen on

Re: [GENERAL] [ADMIN] Using Postgresql as application server

2011-08-16 Thread Craig James
On 8/16/11 10:24 AM, Chris Travers wrote: I can't let this slide :-D On Tue, Aug 16, 2011 at 9:27 AM, Evan Rempel wrote: Technically it can be done, but just because we can do something does not mean we should do something. Having said that... We have been using a middleware product that shal

Re: [ADMIN] All the functionality I need is pgsql2shp.exe-- isolated installation

2011-08-07 Thread Craig James
On 8/7/11 10:30 AM, antismarmy wrote: Hello community, I need to execute pgsql2shp from the command line, but I am not interested in the other functionalities offered by postgresql on this machine. I have been told that installing an instance of a spatial database on the machine in question just

Re: [ADMIN] All the functionality I need is pgsql2shp.exe-- isolated installation

2011-08-07 Thread Craig James
On 8/7/11 10:30 AM, antismarmy wrote: Hello community, I need to execute pgsql2shp from the command line, but I am not interested in the other functionalities offered by postgresql on this machine. I have been told that installing an instance of a spatial database on the machine in question just

Re: [ADMIN] Who is causing all this i/o?

2011-06-19 Thread Craig James
On 6/17/11 11:51 AM, Shianmiin wrote: Tom Lane-2 wrote: What's not apparent however is why the stats collector is writing disk so much. 8.4 does have the logic change to not write stats out unless something is asking to see them. So either it's really pre-8.4, or you have a monitoring task tha

Re: [ADMIN] tsvector limitations

2011-06-14 Thread Craig James
On 6/14/11 1:42 PM, Tim wrote: So I ran this test: unzip -p text.docx word/document.xml | perl -p -e 's/<.+?>/\n/g;s/[^a-z0-9\n]/\n/ig;'|grep ".." > text.txt ls -hal ./text.* #-rwxrwxrwx 1 postgres postgres 15M 2011-06-14 15:12 ./text.docx #-rwxrwxrwx 1 postgres postgres 29M 2011-06-14 15:17 ./t

Re: [ADMIN] Postgresql 8.4 replication using Londiste

2011-06-08 Thread Craig James
On 6/8/11 12:39 PM, Maria L. Wilson wrote: Interested in using Londiste to set up replication of only one column in a particular database to another database on a remote Postgres server. I've installed and configured londiste on the servers - that was no problem. I just don't see anything in

Re: [ADMIN] Who is causing all this i/o?

2011-05-21 Thread Craig James
On 5/21/11 8:11 AM, Tom Lane wrote: Craig James writes: On 5/20/11 4:25 PM, Scott Marlowe wrote: On Fri, May 20, 2011 at 3:14 PM, Craig James wrote: Our development server (PG 8.4.4 on Ubuntu server) is constantly doing something, and I can't figure out what. The two production se

Re: [ADMIN] Who is causing all this i/o?

2011-05-20 Thread Craig James
On 5/20/11 4:25 PM, Scott Marlowe wrote: On Fri, May 20, 2011 at 3:14 PM, Craig James wrote: Our development server (PG 8.4.4 on Ubuntu server) is constantly doing something, and I can't figure out what. The two production servers, which are essentially identical, don't show thes

Re: [ADMIN] Who is causing all this i/o?

2011-05-20 Thread Craig James
On 5/20/11 3:38 PM, Joshua D. Drake wrote: The other two servers are configured identically. If I diff the configuration files, the only difference is the IP addresses for the "listen" section. Can anyone tell me what's going on? Why is pgstat.stat being rewritten on this server constantly and

[ADMIN] Who is causing all this i/o?

2011-05-20 Thread Craig James
Our development server (PG 8.4.4 on Ubuntu server) is constantly doing something, and I can't figure out what. The two production servers, which are essentially identical, don't show these symptoms. In a nutshell, it's showing 10K blocks per second of data going out, all the time, and essenti

Re: [ADMIN] select for update

2011-04-23 Thread Craig James
On 4/22/11 8:17 PM, Tom Lane wrote: Craig James writes: On 4/22/11 1:58 PM, Tom Lane wrote: Craig James writes: select objectid from archive where db_id is null limit 1 for update The interaction between LIMIT and FOR UPDATE changed in 9.0 ... what PG version are you using? 8.4.4 Well

Re: [ADMIN] select for update

2011-04-22 Thread Craig James
On 4/22/11 1:58 PM, Tom Lane wrote: Craig James writes: select objectid from archive where db_id is null limit 1 for update The interaction between LIMIT and FOR UPDATE changed in 9.0 ... what PG version are you using? 8.4.4 thanks, Craig regards, tom lane

[ADMIN] select for update

2011-04-22 Thread Craig James
I thought I understood "select ... for update," but maybe not. We have a number of separate databases and a unique integer identifier that's supposed to be global across all databases. A single "archive" database is used to issue the next available ID when a process wants to create a new objec

Re: [ADMIN] mls selinux and postgres

2011-04-09 Thread Craig James
On 4/9/11 9:24 AM, H S wrote: Dear Sirs, I would like to include SELINUX MLS to my postgres DBMS, I have just install mls package on my fedora 14 and mcstrans But after relabelling my whole file system, I do not have any graphical user interface , and must login to my system in text mode (

Re: [ADMIN] Postgres Backup Utility

2011-01-20 Thread Craig James
On Thu, Jan 20, 2011 at 10:42 AM, Bradley Holbrook wrote: Thanks Scott... a couple comments. Our developers never decide what goes to where... they just happily plumb away on the development db until we're ready to take our product to testing (at regular intervals), once QA is passed, we wi

Re: [ADMIN] Securing a remotely accessible PostgreSQL server

2010-12-22 Thread Craig James
Josh wrote: I am looking for suggestions on how best to secure a server that is accessible via the internet. Even account creation for the database is open to the world. Does anybody have any extra changes they would make to postgresql.conf or OS changes they would suggest? Perhaps some default

Re: [ADMIN] FOR SHARE permissions

2010-12-13 Thread Craig James
On 12/11/10 7:47 PM, David Underhill wrote: I have two tables. One has a foreign key referencing a serial field in the other table. I've given INSERT privilege to a role other than the owner, but I still can't insert into the table containing the foreign key unless I grant the /owner/ of the

Re: [ADMIN] Best Linux filesystem for Postgres data store ?

2010-12-01 Thread Craig James
On 12/1/10 7:54 AM, Kevin Grittner wrote: "Lello, Nick" wrote: What is considered the best filesystem to use for postgres data stores ? I held off for a bit to see if someone else would jump in with a comparison of filesystems, but so far nobody has taken the bait. The reason I held off is t

Re: [ADMIN] binary logs: a location other than pg_xlog??

2010-11-22 Thread Craig James
On 11/22/10 10:42 AM, James Cloos wrote: "TL" == Tom Lane writes: TL> It *is* configurable: make pg_xlog a symlink. I notice that everyone suggests using a symlink, but I never see anyone suggest just mounting a filesystem there. Is there a (technical) reason for that? Or is a symlink just

Re: [ADMIN] Pre-Allocate tablespace on disk

2010-11-15 Thread Craig James
On 11/15/10 11:42 AM, Chris Ruprecht wrote: I was wondering if there is a way to pre-allocate tablespace on disk before adding data and indexes. My understanding is: PG writes data into files sequentially. If more space is needed, disk space is requested from the OS and if there is space, the OS

Re: [ADMIN] Connect to a server with SSL encrypted connection?

2010-10-14 Thread Craig James
On 10/14/10 3:59 AM, Sebastien wrote: Hello! I'm writting to get some clues about PostgreSQL administration, and more precisely SSL connection from one server to another with certificate identification. I must underline than I'm new to postgreSQL and server administration. Here is the story:

Re: [ADMIN] restore

2010-10-05 Thread Craig James
On 10/5/10 11:08 AM, Dinesh Bhandary wrote: Hi All, Is there an easy way to restore to a new table where the column name have been changed but data remains the same? For example I am trying to restore from existing system, table1(col1) to table1(col2) and it is erroring out on the new column n

Re: [ADMIN] Default session timeout in PG?

2010-10-04 Thread Craig James
On 10/4/10 10:36 AM, Lou Picciano wrote: (Think I've seen the answer to this already, but:) is there any 'innate', or 'default' session timeout function built in to PG? We have certain clients who seem to timeout pretty frequently, while others seem to never time out at all; before we start di

Re: [ADMIN] incrementing updates and locks

2010-09-16 Thread Craig James
oes wrong and the transaction is rolled back. But given what you have told us about your application, it is probably not very important if a few ORDER ID numbers are missing. Craig On Thu, Sep 16, 2010 at 4:06 PM, Craig James mailto:craig_ja...@emolecules.com>> wrote: On 9/16/

Re: [ADMIN] incrementing updates and locks

2010-09-16 Thread Craig James
On 9/16/10 3:54 PM, Aras Angelo wrote: Hello All I have a column in my table which is incrementally updated. Try to give us more details... Does the column need have contiguous values or are "gaps" ok? That is, does it have to be 1,2,3,4,...,N-1,N or is it ok to have something like 1,3,4,7,

Re: [ADMIN] [NOVICE] - SAN/NAS/DAS - Need advises

2010-09-07 Thread Craig James
On 9/7/10 12:06 PM, Jesper Krogh wrote: On 2010-09-07 20:42, Scott Marlowe wrote: With the right supplier, you can plug in literally 100 hard drives to a regular server with DAS and for a fraction of the cost of a SAN. Ok, recently I have compared prices a NexSan SASBeast with 42 15K SAS drives

Re: [ADMIN] Tuple changes from relfilenodes

2010-08-27 Thread Craig James
On 8/27/10 10:09 AM, Lukasz Brodziak wrote: What do You mean by history table? Creating such table is out of the question. You asked for "actual versions of row data" and a "data change history." How can you expect to get a history without the history being stored somewhere? The previous ans

Re: [ADMIN] Tuple changes from relfilenodes

2010-08-27 Thread Craig James
On 8/27/10 9:48 AM, £ukasz Brodziak wrote: I'm looking for actual versions of row data. What I want to achieve as a final result is a kind of data change history. What about a before-update trigger and an history table? Craig > Date: Fri, 27 Aug 2010 08:25:26 -0500 > From: kevin.gritt...@

Re: [ADMIN] How to move a database from HP server to Linux Server that had already one database.

2010-08-10 Thread Craig James
On 8/9/10 5:14 PM, Bruce Momjian wrote: ENGEMANN, DAYSE wrote: Hi Kevin, Sorry to disturb you.. But I am really new in it... Let me see if I understood... pg_dump -h sourcemachine -U sourceuser source_dbname | psql target_dbname Has anyone done any measurement of whether it is faster to do

Re: [ADMIN] password administration

2010-08-05 Thread Craig James
On 8/5/10 12:58 PM, Mark Steben wrote: I would like to set up a facility that enforces password changes for roles After a predefined period (30 days for instance) when logging into psql Or, at the very least, send an email out to notify that your current Password period is about to expire. Prefe

Re: [ADMIN] Connection pooling for a mixture of lightweight and heavyweight jobs?

2010-07-30 Thread Craig James
On 7/30/10 10:37 AM, Kevin Grittner wrote: Craig James wrote: Well, the "if it ain't broke, don't fix it" rule might come into play here. I should have given one more detail here: We've been the victim of persistent "CPU spikes" that were discussed extens

Re: [ADMIN] Connection pooling for a mixture of lightweight and heavyweight jobs?

2010-07-30 Thread Craig James
On 7/30/10 8:57 AM, Kevin Grittner wrote: Craig James wrote: We create a bunch of high-performance lightweight Postgres clients that serve up images (via mod_perl and Apache::DBI). We have roughly ten web sites, with ten mod_perl instances each, so we always have around 100 Postgres backends

[ADMIN] Connection pooling for a mixture of lightweight and heavyweight jobs?

2010-07-28 Thread Craig James
I have a question that may be related to connection pooling. We create a bunch of high-performance lightweight Postgres clients that serve up images (via mod_perl and Apache::DBI). We have roughly ten web sites, with ten mod_perl instances each, so we always have around 100 Postgres backends

Re: [ADMIN] postgresql basic info

2010-07-27 Thread Craig James
On 7/27/10 3:37 AM, Lazarin Toni wrote: I am Oracle DBA and i will be maybe work on a project where postgresql database will be used. So i would be greatful if you could please advise me on the folowing : · Estimated time for postgresql latest RDBMS software instalation and configuration (does

Re: [ADMIN] Stumped by a version conflict.

2010-07-16 Thread Craig James
On 7/16/10 3:31 PM, Patric Michael wrote: Hi all... I joined this list in an effort to solve a puzzle I fail to understand. Thank you in advance for taking the time to read. I've been managing a domain for the last eight years as an erstwhile administrator. Erstwhile meaning it is largely a ma

Re: [ADMIN] secret key for encryption

2010-07-16 Thread Craig James
Kris, [Replying to list, too.] On 7/16/10 10:14 AM, Kris Deugau wrote: Craig James wrote: This isn't exactly a Postgres question, but I hope someone in the community has solved it. I want to encrypt some data in Postgres that arrives from Apache. How do you store an encryption key in s

[ADMIN] secret key for encryption

2010-07-16 Thread Craig James
This isn't exactly a Postgres question, but I hope someone in the community has solved it. I want to encrypt some data in Postgres that arrives from Apache. How do you store an encryption key in such a way that Apache CGIs can get it, but a hacker or rogue employee who manages to access the m

Re: [ADMIN] 8.3 to 8.4 - Can't load dynamic shared library

2010-07-15 Thread Craig James
On 7/15/10 2:14 PM, Tom Lane wrote: Craig James writes: On 8.3.10 and earlier, Postgres would ONLY load this library if we put it in /usr/local/pgsql/lib, so I figured it was a security restriction, that Postgres altered the LD_LIBRARY_PATH to ensure that only legitimate, admin-approved

Re: [ADMIN] 8.3 to 8.4 - Can't load dynamic shared library

2010-07-15 Thread Craig James
On 7/15/10 12:52 PM, Tom Lane wrote: Craig James writes: On the Postgres 8.3 system, I simply put libopenbabel.so into the /usr/local/pgsql/lib directory, and everything worked well. On 8.4, I can't seem to get it to load libopenbabel.so. Other programs that use this library ha

[ADMIN] 8.3 to 8.4 - Can't load dynamic shared library

2010-07-15 Thread Craig James
I'm migrating from Postgres 8.3.10 to 8.4.4, and also from Fedora 9 to Ubuntu 10.04. On 8.3.10, I have a C extension that worked on 8.3, but now refuses to load on 8.4: CREATE OR REPLACE FUNCTION chmoogle_session_id() RETURNS integer AS '/usr/local/pgsql/lib/libchmoogle.so', 'chmoogle_session_