[GENERAL] pgcon2015, what happened to SMR disk technolgy ?

2017-10-17 Thread Laurent Laborde
Friendly greetings ! i remember an interesting talk from seagate at pgcon2015 about SMR disk technology, and i use them for archive & backup (personal usage). However, the highest capacity on the seagate archive product line (the one using SMR) is 8TB. Seagate have a 8TB ironwolf product at rough

Re: [GENERAL] pgcon2015, what happened to SMR disk technolgy ?

2017-10-17 Thread Geoff Winkless
On 17 October 2017 at 11:59, Laurent Laborde wrote: > What's the point of the seagate archive now ? > Ironwolf, for the same public price, have better performance (obviously) > and, more surprising, a better MTBF. > ​I have no real insight into whether Seagate are still pursuing the product desi

[GENERAL] Finally upgrading to 9.6!

2017-10-17 Thread Ron Johnson
Where can I look to see (roughly) how much more RAM/CPU/disk needed when moving from 8.4 and 9.2? Thanks -- World Peace Through Nuclear Pacification -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/

Re: [GENERAL] Finally upgrading to 9.6!

2017-10-17 Thread Tom Lane
Ron Johnson writes: > Where can I look to see (roughly) how much more RAM/CPU/disk needed when > moving from 8.4 and 9.2? It's entirely possible you'll need *less*, as you'll be absorbing the benefit of several years' worth of performance improvements. But this is such a workload-dependent thin

[GENERAL] Postgres Architect

2017-10-17 Thread Dillon Tang
***Must sit onsite in Cypress,CA or Eden Prairie, MN*** What is the specific title of the position? Senior posgreSQL Database Administrator Consultant What Project/Projects will the candidate be working on while on assignment? The candidate will be working on the EDSS to Documentum migration pro

Re: [GENERAL] Postgres Architect

2017-10-17 Thread Joshua D. Drake
On 10/17/2017 10:39 AM, Dillon Tang wrote: ***Must sit onsite in Cypress,CA or Eden Prairie, MN*** This is the wrong list. Please use pgsql-jobs. Thank you, JD -- Command Prompt, Inc. || http://the.postgres.company/ || @cmdpromptinc PostgreSQL Centered full stack support, consulting and dev

[GENERAL] Simple query fail

2017-10-17 Thread Glenn Pierce
Hi so I have a simple table as \d sensor_values_days; Table "public.sensor_values_days" Column | Type | Modifiers ---+--+-- ts| timestamp with time zone | not null value | d

Re: [GENERAL] Simple query fail

2017-10-17 Thread David G. Johnston
On Tue, Oct 17, 2017 at 2:29 PM, Glenn Pierce wrote: > and I have a simple query that fails > ​This is not failure, this is a query that found zero matching records. > > Ie > > SELECT sensor_id, MAX(ts), date_trunc('day', ts), COALESCE(MAX(value), > 'NaN')::float FROM sensor_values_days WHERE

Re: [GENERAL] Simple query fail

2017-10-17 Thread Glenn Pierce
Ok I needed a ::timestamptz at time zone 'UTC' and a >= :) On 17 October 2017 at 22:29, Glenn Pierce wrote: > Hi so I have a simple table as > > \d sensor_values_days; > Table "public.sensor_values_days" > Column | Type | Modifiers > ---

Re: [GENERAL] could not fdatasync log file: Input/output error

2017-10-17 Thread said assemlal
Thanks for your response. We are currently running postgresql-9.4.14 I see there are some tools to check if the indexes/pages are not corrupted. But is there a faster way to check if a PGDATA instance is clean ? Thanks. On Mon, Oct 16, 2017 at 9:18 PM Michael Paquier wrote: > On Mon, Oct 16, 2

[GENERAL] Divert triggers on materialized views

2017-10-17 Thread Ewen McNeill
PostgreSQL VIEWs have a useful feature where INSTEAD OF triggers can be defined to divert INSERT/DELETE/UPDATE actions into an underlying table (or other location), creating the effect of a "writeable view" (and I believe in more recent PostgreSQL versions this is pretty much automatic). Howev

Re: [GENERAL] could not fdatasync log file: Input/output error

2017-10-17 Thread Michael Paquier
On Wed, Oct 18, 2017 at 8:02 AM, said assemlal wrote: > Thanks for your response. > > We are currently running postgresql-9.4.14 > I see there are some tools to check if the indexes/pages are not corrupted. > But is there a faster way to check if a PGDATA instance is clean ? Yes, there is somethi

Re: [GENERAL] could not fdatasync log file: Input/output error

2017-10-17 Thread Peter Geoghegan
On Tue, Oct 17, 2017 at 7:13 PM, Michael Paquier wrote: > Note that Peter has also worked on provising Debian packages for the > utility down to 9.4 if I recall correctly, which is nice, but if you > want the heap checks you will need to compile things by youself. We > are currently under way to g

Re: [GENERAL] pgcon2015, what happened to SMR disk technolgy ?

2017-10-17 Thread Laurent Laborde
On Tue, Oct 17, 2017 at 1:38 PM, Geoff Winkless wrote: > On 17 October 2017 at 11:59, Laurent Laborde wrote: > >> What's the point of the seagate archive now ? >> Ironwolf, for the same public price, have better performance (obviously) >> and, more surprising, a better MTBF. >> > > ​I have no re

Re: [GENERAL] pgcon2015, what happened to SMR disk technolgy ?

2017-10-17 Thread Andres Freund
On 2017-10-18 06:50:19 +0200, Laurent Laborde wrote: > On Tue, Oct 17, 2017 at 1:38 PM, Geoff Winkless wrote: > > > On 17 October 2017 at 11:59, Laurent Laborde wrote: > > > >> What's the point of the seagate archive now ? > >> Ironwolf, for the same public price, have better performance (obviou

[GENERAL] Log storage

2017-10-17 Thread Ivan Sagalaev
Hello everyone, An inaugural poster here, sorry if I misidentified a list for my question. I am planning to use PostgreSQL as a storage for application logs (lines of text) with the following properties: - Ingest logs at high rate: 3K lines per second minimum, but the more the better as it w