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and the stats that are visible in
pg_stat_user_tables. It must get easier than that to support the sort
of bigger tables it's possible to build now. And if this data starts
getting tracked, we can start to move toward AV parameters that are
actually aiming at real-world units, too.
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with the idea I'd be happy to just help instead.
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obvious tricky part of the design here.
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what happens from here.
I've switch to bcc'ing you here and we should get you off everyone
else's cc: list here soon. If this feature ends up getting committed,
I'll try to remember to drop you a note about it so you can see what
happened.
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up again in the next two weeks, this is getting bounced back with
no review as code we can't use.
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hard were correct, that's just been fixed since then.
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To make changes to your
, but I've gotten the impression that git is increasingly
popular for other Debian work. Since the program is in Perl, I can't
imagine it's a gigantic task to switch that out, and probably one other
people would like to see.
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, clarifying what circumstances it's appropriate for people to
put a bug onto the Open Items list would be a useful way to spend a
little time. Certainly more productive than trying firing more bullets
at the unkillable zombie that is bug tracking software.
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this was by
its name.
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a fair amount of revision
before it matches what people want here, and I'm not sure how much of
what you've written is going to end up in any commit that may happen
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their workload into, rather than just having
one available.
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into the idea of using
sync_file_range to aim for a finer fsync call on Linux than is currently
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as open-source
projects go, but that fact isn't visible at all unless you're already on
the inside of the project.
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On 05/24/2011 05:03 PM, Peter Eisentraut wrote:
On mån, 2011-05-23 at 22:44 -0400, Greg Smith wrote:
-Given that work in August is particularly difficult to line up with
common summer schedules around the world, having the other1 month
gap in the schedule go there makes sense.
You
people
started at.
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chasing parts of the role--not someone who is also trying
to develop, commit, or review during the CF--before this would be
feasible to consider. Some sort of relief for making that role less
demanding is needed here, before it's practical to schedule those even
more often.
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Greg Smith wrote:
Attached is a second patch to move a number of extensions from
contrib/ to src/test/. Extensions there are built by the default
built target, making installation of the postgresql-XX-contrib package
unnecessary for them to be available.
That was supposed to be contrib
Greg Smith wrote:
Any packager who grabs the shared/postgresql/extension directory in
9.1, which I expect to be all of them, shouldn't need any changes to
pick up this adjustment. For example, pgstattuple installs these files:
share/postgresql/extension/pgstattuple--1.0.sql
share/postgresql
that into this file, or
if it's just enough to mention that as an additional doc comment.
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To make
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diff --git a/contrib/Makefile b/contrib/Makefile
index 6967767..47652d5 100644
--- a/contrib/Makefile
+++ b/contrib/Makefile
@@ -27,6 +27,7 @@ SUBDIRS = \
lo
/Eastern
Select * from pg_timezone_abbrevs returns zero rows
My Linux system that doesn't have this problem is also in US/Eastern,
too, but I get 189 rows in pg_timezone_abrevs.
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are at too. This part is not a problem. If the
changes are big enough to matter, they will show up as a difference on
the many possible how is the server configured? reports, we just need
to pick the most reasonable one. It's a small details I'm not worried
about yet.
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then.
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was a budding
Heikki we wouldn't need patch submission guidelines at all.
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To make changes
of the code? These are all questions I have no answer for.
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was really just in time.
I think 8.3 is going to be one of those releases like 7.4, where people
just keep running it forever. At least shortening the upgrade path has
made that concern a little bit better.
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in contrib/ ; at best maybe 20% of them will ever fall into
that category.
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To make
argument between not liking change vs. the advocacy
benefits to PostgreSQL of doing this; they are considerable in my mind.
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--it is. Getting this feature added is just a harder
problem than what you've done so far.
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advice about aiming for a complicated tool and instead wrote
a really simple one. That was hard enough to finish.
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On 05/07/2011 12:42 PM, Peter Eisentraut wrote:
On fre, 2011-05-06 at 14:32 -0400, Greg Smith wrote:
Given the other improvements in being able to build extensions in 9.1,
we really should push packagers to move pg_config from the PostgreSQL
development package into the main one starting
references exists.
I'll see if I can turn that idea into an actual change to propose.
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|deb]
package (which has some scary stuff in it) on all their servers, just so
I can get some bloat or buffer inspection module.
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diff --git a/contrib/Makefile
what you're expecting.
Doing something useful with the TelegraphCQ code is probably going to
take you a while.
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in that version. I've
gotten bit by this plenty of times.
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done with
the original size.
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they all match the low impact criteria too makes it even
easier to consider.
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To make
into
to that, pages 30 through 34 are the neat ones. That provides some
other neat APIs for preloading popular data into cache too. I'd rather
work on getting something like that into core, rather than adding
something that only is targeting just shared_buffers.
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that is working the way it does though.
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that here yet: provided an example
showing SSI serialization working as a substitute for predicate locking
in this sort of use case. I trust that the theory is sound here, and
yet I'd still like to see that demonstrated. This is why I launched
into making a less trivial test case.
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. If he expands his tests to use a larger amount of data, such
that the plan switches to a realistic one, his results with the new
serialization mode may very well be more satisfying.
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for me to just fix rather than to describe, like the
way I really want to change how it adds comments to the settings it changes.
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#!/bin/bash
# Output lines
there are so
many obvious things guaranteed to improve the program that could be done
instead.
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using prepared statements.
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of the others people are complaining about.
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implementation, but there are still
potential issues in that area it seems.
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To make
submitters might even start fixing their own patches without reviewer
prompting, once they get into someone else's and realize what they
didn't do.
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it if
it were there.
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trying to add support for each new engine
of the month. I don't even like Lua, yet this still seems like a much
better idea than trying to build on top of the existing pgbench codebase.
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. I might re-write in Perl to make it
more portable, but I think that will be at the expense of making it
harder for people to tweak if it doesn't work out of the box. More
code, too.
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O_DIRECT is a less reliable code path than
than write/fsync is, so you're right that isn't necessarily a useful
step forward.
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ext2 come with a load of
warnings about the risk of not journaling. It's hard to predict every
type of issue that fsck might force you to come to terms with after a
crash on ext2, and if there was a problem with this path I'd expect it
to show up as something to be reconciled then.
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the eventual dump and reload they face worse. The time spent porting to
8.3 is a one-time thing; the suffering you get trying to have a 2011
sized database on 2006's 8.2 just keeps adding up the longer you
postpone it.
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not participating in the thing that needs the
most help. This is not a problem you make better with fuzzy management
directives to be nicer to people. There are real software engineering
issues about how to ensure good code quality at its core.
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. I think it's too weak of a theorized problem to
go specifically chasing after though.
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running this for the first time would be helpful. If this works well
enough, I think it would make a good helper script to include in the
distribution. The loose ends to fix I can take care of easily enough
once basic validation is finished.
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is good. There is no substitute for the
discipline of reading your own diff before submission. I'll easily
obsess over mine for an hour before I submit something major, and that
time is always well spent.
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of having to pass
a path to a typedefs file on the command line, we default to a file
sitting in, say, /usr/local/etc. Then you'd just be able to say
pgindent my_file.c.
OK, so I need to update my script to handle either indenting a single
file, or doing all of them.
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at it.
That a person would look at their diff and go too far without trying to
make it small doesn't happen nearly as much.
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on that now more
focused list.
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and still do
something useful we're interested in.
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is that you checked in a modified configure file.
I also note that you use C++ style // comments, which aren't allowed
under the coding guidelines--even though they work fine on many common
platforms.
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for PostgreSQL is something I
see as more of a long-term goal, rather than something it would be
reasonable to expect quick progress on.
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something about that
to the submission guidelines too.
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To make changes to your
out that anyone who
is making decisions about which database to use based on trivial SELECTs
on small databases isn't going to be choosing between PostgreSQL and
MySQL anyway--they'll be deploying something like MongoDB instead if
that's the important metric.
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postgres LockReleaseAll
7423 1.0883 postgres ExecInitExpr
7309 1.0716 postgres pfree
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To make
://postgresql.1045698.n5.nabble.com/Lock-partitions-td1952557.html
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and way to implement eager MVs are interesting
problems. But working on them won't lead toward code that can be
committed to PostgreSQL this year.
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, and it has a profiled hotspot at this point.
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code to add support for a new test type, so this may
start moving forward again if that works out.
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diff --git a/build-farm.conf b/build-farm.conf
index
case. It's sure not a
problem that's going to get solved in this release though.
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everything else that's
still open will probably settle too.
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To make changes to your
to mind is a rule
like kick shared memory in the teeth to force a crash after every 100
commits, then see if #100 shows up as expected. Pick two different
small numbers for the interval and you could probably put that on both
sides to simulate all sorts of badness.
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before it will all
be sorted out properly. I'll mark it accordingly and can pick this back
up later.
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that aren't you've
wedged in there and are dependent on is never a good idea. I won't
consider this truly resolved until GnuTLS support for PostgreSQL is in core.
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if you want to rebuild
after every single commit. It may be overkill to go through that just
for testing .deb packaging, which realistically you're only going to
want to do after each point release.
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I'd like to see their
ridiculous requirements bypassed altogether by doing whatever is
necessary to get GnuTLS support working. But pragmatically, fixing the
bugs and adding features to libedit may be the easier route here.
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to do exactly this conversion. You'd think
there'd be a simple OpenSSL-like interface available for GnuTLS by now
or something.
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PostgreSQL 9.0 High
license with unique terms. It would be both hypocritical and incorrect
to now blame the GNU projects for taking a similar stand on this one.
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by
the OS or emulated in src/port/erand48.c That's way more resolution
than needed here, given that 2^48 pgbench accounts would be a scale of
2.8M, which makes for a database of about 42 petabytes.
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.
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To make changes
considered not ready by
others. Just having this patch available here is a very useful step
forward in my mind, because now people can always just grab it and do a
custom build if they run into a larger system.
Wavering between Returned with Feedback and Ready for Committer here.
Thoughts?
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is impossible.
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To make
this monster built, I'm going to leave it on the
server until I can sort that out, which hopefully will finish up in the
next day or so.
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PostgreSQL 9.0 High
bit issues run into
them as a minor side-effect of a larger vacuum issue, and that if you
get that under control they're only a minor detail in comparison. Makes
it hard to get too excited about optimizing them.
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PostgreSQL
than this one, because
of how the pg_standby code modularizes the concept of a restore command.
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Greg Smith 2ndQuadrant USg...@2ndquadrant.com Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support www.2ndQuadrant.us
diff --git a/contrib/pg_archivecleanup/pg_archivecleanup.c
of
this patch.
Results on XFS with mini-server class hardware should be interesting...
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Greg Smith 2ndQuadrant USg...@2ndquadrant.com Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support www.2ndQuadrant.us
PostgreSQL 9.0 High Performance: http://www.2ndQuadrant.com/books
diff
right out. I'd recommend a
pass of that before submitting things if you want to try and avoid those
in the future.
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Greg Smith 2ndQuadrant USg...@2ndquadrant.com Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support www.2ndQuadrant.us
PostgreSQL 9.0 High Performance: http://www
; there
needs to be some additional benefit from the sorting before it's really
worthwhile.
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Greg Smith 2ndQuadrant USg...@2ndquadrant.com Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support www.2ndQuadrant.us
PostgreSQL 9.0 High Performance: http://www.2ndQuadrant.com/books
Michael Banck wrote:
On Sat, Jan 15, 2011 at 05:47:24AM -0500, Greg Smith wrote:
For example, the pre-release Squeeze numbers we're seeing are awful so
far, but it's not really done yet either.
Unfortunately, it does not look like Debian squeeze will change any more
(or has changed
can then feed
into the useful leftovers patch that Robert already refactored here.
Can always sharpen up that estimate later, I need to get some solid
results I can share on what the delay time does to the
throughput/latency pattern next.
--
Greg Smith 2ndQuadrant USg
the Ubuntu 10.04 2.6.32 kernel so ext4 should be stable
enough. I have some PostgreSQL work that needs to get finished first
though.
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Greg Smith 2ndQuadrant USg...@2ndquadrant.com Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support www.2ndQuadrant.us
PostgreSQL 9.0 High
without the redundancy. Basic entry-level
database server here in 2011.
bonnie++ on the main database disk: read 301MB/s write 215MB/s, seeks
423.4/second. Measured around 10K small commits/second to prove the
battery-backed write cache works fine.
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Greg Smith 2ndQuadrant USg
reset is reasonable. But I think to really be complete,
this needs to hook database creation and make sure the value gets
initialized with the current timestamp, not just be blank. Do that, and
I think this will make a nice incremental feature on top of the existing
stats structure.
--
Greg
, and I'll start testing
performance of this change over the weekend.
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Greg Smith 2ndQuadrant USg...@2ndquadrant.com Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support www.2ndQuadrant.us
PostgreSQL 9.0 High Performance: http://www.2ndQuadrant.com/books
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Sent via pgsql
Greg Smith wrote:
I think the right way to compute relations to sync is to finish the
sorted writes patch I sent over a not quite right yet update to already
Attached update now makes much more sense than the misguided patch I
submitted two weesk ago. This takes the original sorted write
running lots of lately
are a full 3X TPS faster on XFS relative to ext3, with about 1/8 as much
worst-case latency.
--
Greg Smith 2ndQuadrant USg...@2ndquadrant.com Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support www.2ndQuadrant.us
PostgreSQL 9.0 High Performance: http
. But since
ultimately the feedback for this will be make the checkpoints longer or
increase checkpoint_sync_target, sync acceleration to meet the deadline
isn't unacceptable; DBA can try both of those themselves if seeing spikes.
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Greg Smith 2ndQuadrant USg...@2ndquadrant.com Baltimore, MD
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