On Tue, 2007-05-08 at 23:31 -0400, Greg Smith wrote:
My issue wasn't with the idea, it was with the implementation. When I
have my newbie hat on, it adds a layer of complexity that isn't needed for
simple installs.
I find it very hard to agree with that.
As a newbie I install postgresql
currently ZFS is only available on Solaris, parts of it have been released
under GPLv2, but it doesn't look like enough of it to be ported to Linux
(enough was released for grub to be able to access it read-only, but not
the full filesystem). there are also patent concerns that are
On Tuesday 08 May 2007 23:31, Greg Smith wrote:
On Tue, 8 May 2007, Tom Lane wrote:
What Debian has done is set up an arrangement that lets you run two (or
more) different PG versions in parallel. Since that's amazingly helpful
during a major-PG-version upgrade, most of the other packagers
On Tue, 8 May 2007, Greg Smith wrote:
On Tue, 8 May 2007, Luke Lonergan wrote:
From discussions with the developers, the biggest issue is a technical
one: the Linux VFS layer makes the [ZFS] port difficult.
Difficult on two levels. First you'd have to figure out how to make it work
at
On Wed, May 09, 2007 at 01:57:51AM -0700, [EMAIL PROTECTED] wrote:
given that RAID, snapshots, etc are already in the linux kernel, I suspect
that what will need to happen is for the filesystem to be ported without
those features and then the userspace tools (that manipulate the volumes )
On Wed, 9 May 2007, Steinar H. Gunderson wrote:
On Wed, May 09, 2007 at 01:57:51AM -0700, [EMAIL PROTECTED] wrote:
given that RAID, snapshots, etc are already in the linux kernel, I suspect
that what will need to happen is for the filesystem to be ported without
those features and then the
Hello Ian,
I have done some testing with postgresql and ZFS on Solaris 10 11/06.
While I work for Sun, I dont claim to be a ZFS expert (for that matter
not even Solaris or PostgreSQL).
Lets first look at the scenarios of how postgresql can be deployed on
Solaris
First the Solaris Options
1.
Jignesh Shah escribió:
Now comes the thing that I am still exploring
* Do we do checksum in WAL ? I guess we do .. Which means that we are
now doing double checksumming on the data. One in ZFS and one in
postgresql. ZFS does allow checksumming to be turned off (but on new
blocks
On May 8, 2007, at 2:59 AM, [EMAIL PROTECTED] wrote:
one issue with journaling filesystems, if you journal the data as
well as the metadata you end up with a very reliable setup, however
it means that all your data needs to be written twice, oncce to the
journal, and once to the final
On Tue, 8 May 2007, �~]~N彦 Ian Li wrote:
In #postgresql on freenode, somebody ever mentioned that ZFS from Solaris
helps a lot to the performance of pgsql, so dose anyone have information
about that?
the filesystem you use will affect the performance of postgres
significantly. I've heard a
I am about to order a new server for my Postgres cluster. I will
probably get a Dual Xeon Quad Core instead of my current Dual Xeon.
Which OS would you recommend to optimize Postgres behaviour (i/o
access, multithreading, etc) ?
I am hesitating between Fedora Core 6, CentOS and Debian. Can
[EMAIL PROTECTED] wrote:
if you don't journal your data then you avoid the problems above, but in
a crash you may find that you lost data, even though the filesystem is
'intact' according to fsck.
PostgreSQL itself journals it's data to the WAL, so that shouldn't happen.
--
Heikki
In #postgresql on freenode, somebody ever mentioned that ZFS from Solaris
helps a lot to the performance of pgsql, so dose anyone have information
about that?
the filesystem you use will affect the performance of postgres
significantly. I've heard a lot of claims for ZFS, unfortunantly many
On Tue, 8 May 2007, Claus Guttesen wrote:
In #postgresql on freenode, somebody ever mentioned that ZFS from
Solaris
helps a lot to the performance of pgsql, so dose anyone have information
about that?
the filesystem you use will affect the performance of postgres
significantly. I've
[EMAIL PROTECTED] wrote:
On Tue, 8 May 2007, Claus Guttesen wrote:
In #postgresql on freenode, somebody ever mentioned that ZFS from
Solaris
helps a lot to the performance of pgsql, so dose anyone have
information
about that?
the filesystem you use will affect the performance of
On Mon, May 07, 2007 at 11:56:14PM -0400, Greg Smith wrote:
Debian packages PostgreSQL in a fashion unique to it; it's arguable
whether it's better or not (I don't like it), but going with that will
assure your installation is a bit non-standard compared with most Linux
installas. The main
On 5/8/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
[snip]
I personally don't trust reiserfs, jfs seems to be a tools for
transitioning from AIX more then anything else [...]
What makes you say this? I have run JFS for years with complete
satisfaction, and I have never logged into an AIX
On Mon, May 07, 2007 at 03:14:08PM -0700, Joshua D. Drake wrote:
It is my understanding (and I certainly could be wrong) that FreeBSD
doesn't handle SMP nearly as well as Linux (and Linux not as well as
Solaris).
I'm not actually sure about the last part. There are installations as big as
1024
On Tue, 8 May 2007, Trygve Laugstøl wrote:
currently ZFS is only available on Solaris, parts of it have been released
under GPLv2, but it doesn't look like enough of it to be ported to Linux
(enough was released for grub to be able to access it read-only, but not
the full filesystem). there
[EMAIL PROTECTED] wrote:
On Tue, 8 May 2007, Trygve Laugstøl wrote:
currently ZFS is only available on Solaris, parts of it have been
released
under GPLv2, but it doesn't look like enough of it to be ported to
Linux
(enough was released for grub to be able to access it read-only, but
not
WRT ZFS on Linux, if someone were to port it, the license issue would get
worked out IMO (with some discussion to back me up). From discussions with the
developers, the biggest issue is a technical one: the Linux VFS layer makes the
port difficult.
I don't hold any hope that the FUSE port
I've seen the FUSE port of ZFS, and it does run sslloowwllyy. It
appears that a native linux port is going to be required if we want
ZFS to be reasonably performant.
WRT which FS to use for pg; the biggest issue is what kind of DB you
will be building. The best pg FS for OLTP and OLAP are
I am back with the chatlog and seem it's the Transparent compression
that helps a lot, very interesting...
here is the log of #postgresql on Apr. 21th around 13:20 GMT (snipped) :
Solatis why is that, when hard disk i/o is my bottleneck ?
Solatis well i have 10 disks in a raid1+0
On Tue, 8 May 2007, [EMAIL PROTECTED] wrote:
one issue with journaling filesystems, if you journal the data as well as the
metadata you end up with a very reliable setup, however it means that all
your data needs to be written twice, oncce to the journal, and once to the
final location. the
On Tue, 8 May 2007, Tom Lane wrote:
What Debian has done is set up an arrangement that lets you run two (or
more) different PG versions in parallel. Since that's amazingly helpful
during a major-PG-version upgrade, most of the other packagers are
scheming how to do something similar.
I
On Tue, 8 May 2007, Luke Lonergan wrote:
From discussions with the developers, the biggest issue is a technical
one: the Linux VFS layer makes the [ZFS] port difficult.
Difficult on two levels. First you'd have to figure out how to make it
work at all; then you'd have to reshape it into a
Hi,
I am about to order a new server for my Postgres cluster. I will
probably get a Dual Xeon Quad Core instead of my current Dual Xeon.
Which OS would you recommend to optimize Postgres behaviour (i/o
access, multithreading, etc) ?
I am hesitating between Fedora Core 6, CentOS and Debian. Can
David Levy wrote:
Hi,
I am about to order a new server for my Postgres cluster. I will
probably get a Dual Xeon Quad Core instead of my current Dual Xeon.
Which OS would you recommend to optimize Postgres behaviour (i/o
access, multithreading, etc) ?
I am hesitating between Fedora Core 6,
In response to Joshua D. Drake [EMAIL PROTECTED]:
David Levy wrote:
Hi,
I am about to order a new server for my Postgres cluster. I will
probably get a Dual Xeon Quad Core instead of my current Dual Xeon.
Which OS would you recommend to optimize Postgres behaviour (i/o
access,
On May 7, 2007, at 2:55 PM, David Levy wrote:
Hi,
I am about to order a new server for my Postgres cluster. I will
probably get a Dual Xeon Quad Core instead of my current Dual Xeon.
Which OS would you recommend to optimize Postgres behaviour (i/o
access, multithreading, etc) ?
I am
David Levy wrote:
Hi,
I am about to order a new server for my Postgres cluster. I will
probably get a Dual Xeon Quad Core instead of my current Dual Xeon.
Which OS would you recommend to optimize Postgres behaviour (i/o
access, multithreading, etc) ?
I am hesitating between Fedora Core 6,
On Tue, 8 May 2007, Chris wrote:
David Levy wrote:
Hi,
I am about to order a new server for my Postgres cluster. I will
probably get a Dual Xeon Quad Core instead of my current Dual Xeon.
Which OS would you recommend to optimize Postgres behaviour (i/o
access, multithreading, etc) ?
I
[EMAIL PROTECTED] wrote:
On Tue, 8 May 2007, Chris wrote:
David Levy wrote:
Hi,
I am about to order a new server for my Postgres cluster. I will
probably get a Dual Xeon Quad Core instead of my current Dual Xeon.
Which OS would you recommend to optimize Postgres behaviour (i/o
access,
I am using FC6 in production for our pg 8.2.4 DB server and am quite
happy with it.
The big advantage with FC6 for me was that the FC6 team seems to keep
more current with the latest stable revs of most OSSW (including
kernel revs!) better than any of the other major distros.
(Also, SE
On Mon, 7 May 2007, David Levy wrote:
I am hesitating between Fedora Core 6, CentOS and Debian. Can anyone
help with this ?
Debian packages PostgreSQL in a fashion unique to it; it's arguable
whether it's better or not (I don't like it), but going with that will
assure your installation is
Greg Smith [EMAIL PROTECTED] writes:
Debian packages PostgreSQL in a fashion unique to it; it's arguable
whether it's better or not (I don't like it), but going with that will
assure your installation is a bit non-standard compared with most Linux
installas.
dons red fedora
What Debian
In #postgresql on freenode, somebody ever mentioned that ZFS from
Solaris helps a lot to the performance of pgsql, so dose anyone have
information about that?
Steve Atkins wrote:
On May 7, 2007, at 2:55 PM, David Levy wrote:
Hi,
I am about to order a new server for my Postgres cluster. I
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