Re: [GENERAL] To monitor the number of PostgreSQL database connections?

2014-03-26 Thread David Johnston
Nithya Soman wrote > Hi > > Could you please provide any method (query or any logfile) to check > max connections happened during a time interval in psql DB ? Only if the time interval desired in basically zero-width (i.e., instantaneous). The "pg_stat_activity" view is your friend in this. You

Re: [GENERAL] Increase in max_connections

2014-03-26 Thread Anand Kumar, Karthik
Thanks Bruce. Really interesting, but, I show zone reclaim is already turned off on our system. root@site-db01b:~ # numactl --hardware available: 2 nodes (0-1) node 0 cpus: 0 1 2 3 4 5 12 13 14 15 16 17 node 0 size: 393181 MB node 0 free: 467 MB node 1 cpus: 6 7 8 9 10 11 18 19 20 21 22 23 node 1

Re: [GENERAL] PgAdmin errors

2014-03-26 Thread John R Pierce
On 3/26/2014 1:07 PM, Hall, Samuel L (Sam) wrote: ERROR: syntax error at or near "LIKE" LINE 2: CREATE TABLE tse_history_old (LIKE tse_history) thats the syntax from http://www.postgresql.org/docs/current/static/sql-createtable.html try it in psql instead of pgadmin ? earlier, you menti

Re: [GENERAL] PgAdmin errors

2014-03-26 Thread Alvaro Herrera
Hall, Samuel L (Sam) wrote: > ERROR: syntax error at or near "LIKE" > LINE 2: CREATE TABLE tse_history_old (LIKE tse_history) > > ^ Note it says this is on line 2. What have you got in the previous line? (psql has \p

Re: [GENERAL] PgAdmin errors

2014-03-26 Thread Adrian Klaver
On 03/26/2014 02:13 PM, Hall, Samuel L (Sam) wrote: Yes "PostgreSQL 9.3.0 on x86_64-unknown-linux-gnu, compiled by gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3, 64-bit" So what happens when you run the command from psql ? -- Adrian Klaver adrian.kla...@aklaver.com -- Sent via pgsql-general m

Re: [GENERAL] PgAdmin errors

2014-03-26 Thread Hall, Samuel L (Sam)
Yes "PostgreSQL 9.3.0 on x86_64-unknown-linux-gnu, compiled by gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3, 64-bit" -Original Message- From: Tom Lane [mailto:t...@sss.pgh.pa.us] Sent: Wednesday, March 26, 2014 4:03 PM To: Hall, Samuel L (Sam) Cc: John R Pierce; pgsql-general@postgresql.org

Re: [GENERAL] PgAdmin errors

2014-03-26 Thread Tom Lane
"Hall, Samuel L (Sam)" writes: > ERROR: syntax error at or near "LIKE" > LINE 2: CREATE TABLE tse_history_old (LIKE tse_history) You're certain the server you're talking to is 9.3? ("SELECT version()" is a good way to be sure.) regards, tom lane -- Sent via pgsql-gene

Re: [GENERAL] Increase in max_connections

2014-03-26 Thread Bruce Momjian
On Wed, Mar 26, 2014 at 08:22:01PM +, Anand Kumar, Karthik wrote: > Looking a little deeper, I saw signs of memory being heavily fragmented: > > root@site-db01b:/var/log # cat /proc/buddyinfo > Node 0, zone DMA 1 1 2 2 2 1 0 0 1 1 3 > Node 0, zone DMA32 8 7 8 7 10 8 7 11 9 5 92 > Node 0, zone

Re: [GENERAL] Increase in max_connections

2014-03-26 Thread Anand Kumar, Karthik
Hi all, We finally made some headway on this - we noticed messages like the below in /var/log/messages whenever the issue happened: Mar 26 07:39:58 site-db01b kernel: postmaster: page allocation failure. order:1, mode:0x20 Mar 26 07:39:58 site-db01b kernel: Pid: 39066, comm: postmaster Not tainte

Re: [GENERAL] PgAdmin errors

2014-03-26 Thread Hall, Samuel L (Sam)
ERROR: syntax error at or near "LIKE" LINE 2: CREATE TABLE tse_history_old (LIKE tse_history) ^ From: pgsql-general-ow...@postgresql.org [mailto:pgsql-general-ow...@postgresql.org] On Behalf Of John R Pierce Sent: Wedn

Re: [GENERAL] PgAdmin errors

2014-03-26 Thread John R Pierce
On 3/26/2014 12:58 PM, Hall, Samuel L (Sam) wrote: That doesn't help. Even this CREATE TABLE tse_history_old (LIKE tse_history) gives an error the exact same error ? -- john r pierce 37N 122W somewhere on the middle of the left coast

Re: [GENERAL] Auditing Code - Fortify

2014-03-26 Thread Dev Kumkar
On Thu, Mar 27, 2014 at 1:31 AM, John R Pierce wrote: > why don't you ask the Fortify vendor ? Yup, following up with them in parallel. Search didn't gave me any good links, so wanted to check with community too here. If not Fortify, is there any other such tool? Regards...

Re: [GENERAL] Auditing Code - Fortify

2014-03-26 Thread John R Pierce
On 3/26/2014 12:42 PM, Dev Kumkar wrote: Is Fortify supported for PostgreSQL? why don't you ask the Fortify vendor ? -- john r pierce 37N 122W somewhere on the middle of the left coast -- Sent via pgsql-general mailing list (pgsql-general@postgresql.o

Re: [GENERAL] PgAdmin errors

2014-03-26 Thread Hall, Samuel L (Sam)
That doesn't help. Even this CREATE TABLE tse_history_old (LIKE tse_history) gives an error From: pgsql-general-ow...@postgresql.org [mailto:pgsql-general-ow...@postgresql.org] On Behalf Of John R Pierce Sent: Wednesday, March 26, 2014 2:43 PM To: pgsql-general@postgresql.org Subject: Re: [GENER

Re: [GENERAL] To monitor the number of PostgreSQL database connections?

2014-03-26 Thread Bruce Momjian
On Wed, Mar 26, 2014 at 11:01:28AM +0530, Nithya Soman wrote: > Hi > > Could you please provide any method (query or any logfile) to check > max connections happened during a time interval in psql DB ? I think there will be a message in the logs when you exceed max_connections. I think the error

Re: [GENERAL] PgAdmin errors

2014-03-26 Thread John R Pierce
On 3/26/2014 12:32 PM, Hall, Samuel L (Sam) wrote: When I try to run SQL from PgAdmin : CREATE TABLE tse_history_old LIKE tse_history INCLUDING ALL WITH OIDS I get this error ERROR: syntax error at or near "LIKE" LINE 2: CREATE TABLE tse_history_old LIKE tse_history INCLUDING ALL ... f

[GENERAL] Auditing Code - Fortify

2014-03-26 Thread Dev Kumkar
Is Fortify supported for PostgreSQL? Any auditing tool which you suggest to check the schema design, roles and functions and other aspects? I have used fortify for oracle and sybase, but just not sure about postgreSQL? Can anyone provide some pointers here and if not Fortify then any such tool?

Re: [GENERAL] To monitor the number of PostgreSQL database connections?

2014-03-26 Thread Brian Cosgrove
I know this isn't exactly what you're looking for (a query or log), but we use this tool to monitor our connections and alert when they hit a particular threshold: http://bucardo.org/check_postgres/check_postgres.pl.html#backends On Wed, Mar 26, 2014 at 12:31 AM, Nithya Soman wrote: > Hi > > Co

[GENERAL] PgAdmin errors

2014-03-26 Thread Hall, Samuel L (Sam)
When I try to run SQL from PgAdmin : CREATE TABLE tse_history_old LIKE tse_history INCLUDING ALL WITH OIDS I get this error ERROR: syntax error at or near "LIKE" LINE 2: CREATE TABLE tse_history_old LIKE tse_history INCLUDING ALL ... testing, I find that using the word "LIKE" always causes erro

Re: [GENERAL] Disk Encryption in Production

2014-03-26 Thread Tim Spencer
On Mar 25, 2014, at 3:30 PM, Carlos Espejo wrote: > Anybody running their PostgreSQL server from a ecryptfs container? What are > the common production setups out there? What are the drawbacks that people > have experienced with their solution? We run postgres on XFS on lvm volumes put

[GENERAL] To monitor the number of PostgreSQL database connections?

2014-03-26 Thread Nithya Soman
Hi Could you please provide any method (query or any logfile) to check max connections happened during a time interval in psql DB ? -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general

Re: [GENERAL] PG choosing nested loop for set membership?

2014-03-26 Thread Brian Crowell
On Wed, Mar 26, 2014 at 11:43 AM, Tom Lane wrote: > In principle I guess we could somehow merge the stats of y and z > when looking at a "coalesce(y, z)" expression, but I'm not sure > how that would work exactly. Yeah, I'm not sure there's anything to fix here, either. Just a reminder that coale

Re: [GENERAL] Trimming transaction logs after extended WAL archive failures

2014-03-26 Thread Steven Schlansker
On Mar 26, 2014, at 9:04 AM, Jeff Janes wrote: > On Tue, Mar 25, 2014 at 6:33 PM, Jeff Janes wrote: > On Tuesday, March 25, 2014, Steven Schlansker wrote: > Hi everyone, > > I have a Postgres 9.3.3 database machine. Due to some intelligent work on > the part of someone who shall remain name

Re: [GENERAL] Trimming transaction logs after extended WAL archive failures

2014-03-26 Thread Steven Schlansker
On Mar 25, 2014, at 7:58 PM, Adrian Klaver wrote: > On 03/25/2014 04:52 PM, Steven Schlansker wrote: >> > >>> Some more questions, what happens when things begin to dawn on me:) >>> >>> You said the disk filled up entirely with log files yet currently the >>> number(size) of logs is growing.

Re: [GENERAL] PG choosing nested loop for set membership?

2014-03-26 Thread Tom Lane
Brian Crowell writes: > Which says to me coalesce has a selectivity. Well, the point is you're just getting a default selectivity estimate for the "acc.rule_set_id = coalesce(...anything...)" condition. The planner is smarter about plain "x = y" join conditions: it looks up the column stats for

Re: [GENERAL] Trimming transaction logs after extended WAL archive failures

2014-03-26 Thread Jeff Janes
On Tue, Mar 25, 2014 at 6:33 PM, Jeff Janes wrote: > On Tuesday, March 25, 2014, Steven Schlansker wrote: > >> Hi everyone, >> >> I have a Postgres 9.3.3 database machine. Due to some intelligent work >> on the part of someone who shall remain nameless, the WAL archive command >> included a '>

Re: [GENERAL] PG choosing nested loop for set membership?

2014-03-26 Thread Brian Crowell
On Wed, Mar 26, 2014 at 10:23 AM, Tom Lane wrote: > Hm. It's not obvious from here that those give the same results --- > but you probably understand your schema better than the rest of us. The _users table has a "user_id", and a nullable column "impersonating" which refers to a user_id you want

Re: [GENERAL] PG choosing nested loop for set membership?

2014-03-26 Thread Tom Lane
Brian Crowell writes: > Here's what I did, though. I collapsed the pl2.current_user view into > pl2.visible_accounts: > === > select > acc.account, > acc.manager, > acc.is_fund > from pl2._visible_accounts_by_rule_set acc > inner join (pl2._users u > left join pl2._users iu on

Re: [GENERAL] PG choosing nested loop for set membership?

2014-03-26 Thread Brian Crowell
On Tue, Mar 25, 2014 at 5:59 PM, Tom Lane wrote: > Yeah. The weird thing about that is that the nestloop rowcount estimate > isn't the product of the two input rowcounts --- you'd sort of expect an > estimate of 158 given the input-relation sizes. While that's not ipso > facto evidence of a bug

Re: [GENERAL] Failure upgrading PG 9.2 to 9.3

2014-03-26 Thread Adrian Klaver
On 03/25/2014 05:23 PM, Sam Saffron wrote: Sorry, its part of a rather elaborate docker based upgrade, that install is just done to get the binaries, the data is all in a completely different location which is untouched. So there are two instances of 9.2 in play at one time? The upgrade process

[GENERAL] Solved: could not receive data from server, background writer proces exited with exit code 0

2014-03-26 Thread Joek Hondius
Hi All, This one is just for the record/search: it is solved. But it is quite rare i think. May save others time. PostgreSQL for Windows setup. While trying to connect the client errors with: Could not connect to the server. Reason: could not receive data from server: Software caused connectio

Re: [GENERAL] A guide about some topics of Associate Certification

2014-03-26 Thread Albe Laurenz
Oscar Calderon wrote: > Everybody have a nice day. Well, finally the place where i currently work > paid me a chance to take the > Associate Certification exam and i'm reviewing some topics, specifically the > topics that the exam > covers (some of them are easy to me like psql, which i use almos