Lack of urgency in 8.3 reviewing

Started by Bruce Momjianover 18 years ago36 messages
#1Bruce Momjian
bruce@momjian.us

In talking to people who are assigned to review patches or could review
patches, I often get the reply, "Oh, yea, I need to do that".

Folks, we are six weeks into feature freeze and have made slim progress
on getting patches reviewed and applied. As I stated earlier, we are
now looking at August/September for beta, but that might be pushed back
even later if we don't get more progress.

It seems there is a lot of reliance on Tom to get the patches applied,
but I don't think that is fair or reasonable. I think we need more
urgency on the part of everyone to make faster progress. Patch
reviewers and committers need to take more initiative to get things done
rather than wait for some external force to prompt them.

--
Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://www.enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +

#2Joshua D. Drake
jd@commandprompt.com
In reply to: Bruce Momjian (#1)
Re: Lack of urgency in 8.3 reviewing

Bruce Momjian wrote:

In talking to people who are assigned to review patches or could review
patches, I often get the reply, "Oh, yea, I need to do that".

It seems there is a lot of reliance on Tom to get the patches applied,
but I don't think that is fair or reasonable. I think we need more
urgency on the part of everyone to make faster progress. Patch
reviewers and committers need to take more initiative to get things done
rather than wait for some external force to prompt them.

We have *alot* of people (comparatively) who can assist in reviewing
code that are not committers. Even if they can not commit, they can help
insure that patches are in a state that can be more easily reviewed for
committers to actually test and apply.

Joshua D. Drake

Show quoted text
#3Guido Barosio
gbarosio@gmail.com
In reply to: Bruce Momjian (#1)
Re: Lack of urgency in 8.3 reviewing

Bruce, where can I take a look at the patch list in order to find out
if I can be of some help?

Regards,
g.-

On 5/16/07, Bruce Momjian <bruce@momjian.us> wrote:

In talking to people who are assigned to review patches or could review
patches, I often get the reply, "Oh, yea, I need to do that".

Folks, we are six weeks into feature freeze and have made slim progress
on getting patches reviewed and applied. As I stated earlier, we are
now looking at August/September for beta, but that might be pushed back
even later if we don't get more progress.

It seems there is a lot of reliance on Tom to get the patches applied,
but I don't think that is fair or reasonable. I think we need more
urgency on the part of everyone to make faster progress. Patch
reviewers and committers need to take more initiative to get things done
rather than wait for some external force to prompt them.

--
Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://www.enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +

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Guido Barosio
-----------------------
http://www.globant.com
guido.barosio@globant.com

#4Bruce Momjian
bruce@momjian.us
In reply to: Guido Barosio (#3)
Re: Lack of urgency in 8.3 reviewing

It is all on the developer roadmap page:

http://momjian.us/cgi-bin/pgpatches

---------------------------------------------------------------------------

Guido Barosio wrote:

Bruce, where can I take a look at the patch list in order to find out
if I can be of some help?

Regards,
g.-

On 5/16/07, Bruce Momjian <bruce@momjian.us> wrote:

In talking to people who are assigned to review patches or could review
patches, I often get the reply, "Oh, yea, I need to do that".

Folks, we are six weeks into feature freeze and have made slim progress
on getting patches reviewed and applied. As I stated earlier, we are
now looking at August/September for beta, but that might be pushed back
even later if we don't get more progress.

It seems there is a lot of reliance on Tom to get the patches applied,
but I don't think that is fair or reasonable. I think we need more
urgency on the part of everyone to make faster progress. Patch
reviewers and committers need to take more initiative to get things done
rather than wait for some external force to prompt them.

--
Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://www.enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +

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--
Guido Barosio
-----------------------
http://www.globant.com
guido.barosio@globant.com

--
Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://www.enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +

#5Joshua D. Drake
jd@commandprompt.com
In reply to: Bruce Momjian (#4)
Re: Lack of urgency in 8.3 reviewing

Bruce Momjian wrote:

It is all on the developer roadmap page:

http://momjian.us/cgi-bin/pgpatches

There is also a slightly more readable one here:

http://developer.postgresql.org/index.php/Todo:PatchStatus

Joshua D. Drake

Show quoted text

---------------------------------------------------------------------------

Guido Barosio wrote:

Bruce, where can I take a look at the patch list in order to find out
if I can be of some help?

Regards,
g.-

On 5/16/07, Bruce Momjian <bruce@momjian.us> wrote:

In talking to people who are assigned to review patches or could review
patches, I often get the reply, "Oh, yea, I need to do that".

Folks, we are six weeks into feature freeze and have made slim progress
on getting patches reviewed and applied. As I stated earlier, we are
now looking at August/September for beta, but that might be pushed back
even later if we don't get more progress.

It seems there is a lot of reliance on Tom to get the patches applied,
but I don't think that is fair or reasonable. I think we need more
urgency on the part of everyone to make faster progress. Patch
reviewers and committers need to take more initiative to get things done
rather than wait for some external force to prompt them.

--
Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://www.enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +

---------------------------(end of broadcast)---------------------------
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--
Guido Barosio
-----------------------
http://www.globant.com
guido.barosio@globant.com

#6Andrew Dunstan
andrew@dunslane.net
In reply to: Bruce Momjian (#1)
Re: Lack of urgency in 8.3 reviewing

Bruce Momjian wrote:

In talking to people who are assigned to review patches or could review
patches, I often get the reply, "Oh, yea, I need to do that".

Folks, we are six weeks into feature freeze and have made slim progress
on getting patches reviewed and applied. As I stated earlier, we are
now looking at August/September for beta, but that might be pushed back
even later if we don't get more progress.

It seems there is a lot of reliance on Tom to get the patches applied,
but I don't think that is fair or reasonable. I think we need more
urgency on the part of everyone to make faster progress. Patch
reviewers and committers need to take more initiative to get things done
rather than wait for some external force to prompt them.

I at least feel uncomfortable about reviewing code that deals with areas
I have not touched much, and where I feel the author probably knows a
lot more than me. The chance of my catching errors/problems in such a
case is much lower.

Looking at the list on the wiki, that rules out most of the things that
don't have a reviewer already listed. I can look at the following items:

. UTF8 text matching performance improvements
. concurrent psql
. PL/PSM

If Tom gets around to per-function search paths I'll look at that too,
but I don't actually recall seeing a patch for that.

cheers

andrew

#7Bruce Momjian
bruce@momjian.us
In reply to: Andrew Dunstan (#6)
Re: Lack of urgency in 8.3 reviewing

Andrew Dunstan wrote:

Bruce Momjian wrote:

In talking to people who are assigned to review patches or could review
patches, I often get the reply, "Oh, yea, I need to do that".

Folks, we are six weeks into feature freeze and have made slim progress
on getting patches reviewed and applied. As I stated earlier, we are
now looking at August/September for beta, but that might be pushed back
even later if we don't get more progress.

It seems there is a lot of reliance on Tom to get the patches applied,
but I don't think that is fair or reasonable. I think we need more
urgency on the part of everyone to make faster progress. Patch
reviewers and committers need to take more initiative to get things done
rather than wait for some external force to prompt them.

I at least feel uncomfortable about reviewing code that deals with areas
I have not touched much, and where I feel the author probably knows a
lot more than me. The chance of my catching errors/problems in such a
case is much lower.

Yep, that is part of our problem, but even items people have already
said they _can_ review have shown little progress.

--
Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://www.enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +

#8Stefan Kaltenbrunner
stefan@kaltenbrunner.cc
In reply to: Joshua D. Drake (#5)
Re: Lack of urgency in 8.3 reviewing

Joshua D. Drake wrote:

Bruce Momjian wrote:

It is all on the developer roadmap page:

http://momjian.us/cgi-bin/pgpatches

There is also a slightly more readable one here:

http://developer.postgresql.org/index.php/Todo:PatchStatus

note that http://momjian.us/cgi-bin/pgpatches contains a link to the
wiki site at the very top ;-)

Stefan

#9Stefan Kaltenbrunner
stefan@kaltenbrunner.cc
In reply to: Andrew Dunstan (#6)
Re: Lack of urgency in 8.3 reviewing

Andrew Dunstan wrote:

Bruce Momjian wrote:

In talking to people who are assigned to review patches or could review
patches, I often get the reply, "Oh, yea, I need to do that".

Folks, we are six weeks into feature freeze and have made slim progress
on getting patches reviewed and applied. As I stated earlier, we are
now looking at August/September for beta, but that might be pushed back
even later if we don't get more progress.

It seems there is a lot of reliance on Tom to get the patches applied,
but I don't think that is fair or reasonable. I think we need more
urgency on the part of everyone to make faster progress. Patch
reviewers and committers need to take more initiative to get things done
rather than wait for some external force to prompt them.

I at least feel uncomfortable about reviewing code that deals with areas
I have not touched much, and where I feel the author probably knows a
lot more than me. The chance of my catching errors/problems in such a
case is much lower.

Looking at the list on the wiki, that rules out most of the things that
don't have a reviewer already listed. I can look at the following items:

. UTF8 text matching performance improvements
. concurrent psql
. PL/PSM

added your name to the list in the wiki

If Tom gets around to per-function search paths I'll look at that too,
but I don't actually recall seeing a patch for that.

no - tom said in is patch triage mail that this code is not even written
yet but he still wants to see it in 8.3 ...

Stefan

#10Guido Barosio
gbarosio@gmail.com
In reply to: Bruce Momjian (#7)
Re: Lack of urgency in 8.3 reviewing

What about a mentoring schema in order to push up the gap that
represents catching up with cases like the one Andrew posted?

By the way, being a patch reviewer doesn't represents also to be able
to find out potential problems in the code, which may have nothing to
do with the patch functionality?

g.-

On 5/16/07, Bruce Momjian <bruce@momjian.us> wrote:

Andrew Dunstan wrote:

Bruce Momjian wrote:

In talking to people who are assigned to review patches or could review
patches, I often get the reply, "Oh, yea, I need to do that".

Folks, we are six weeks into feature freeze and have made slim progress
on getting patches reviewed and applied. As I stated earlier, we are
now looking at August/September for beta, but that might be pushed back
even later if we don't get more progress.

It seems there is a lot of reliance on Tom to get the patches applied,
but I don't think that is fair or reasonable. I think we need more
urgency on the part of everyone to make faster progress. Patch
reviewers and committers need to take more initiative to get things done
rather than wait for some external force to prompt them.

I at least feel uncomfortable about reviewing code that deals with areas
I have not touched much, and where I feel the author probably knows a
lot more than me. The chance of my catching errors/problems in such a
case is much lower.

Yep, that is part of our problem, but even items people have already
said they _can_ review have shown little progress.

--
Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://www.enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +

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-----------------------
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guido.barosio@globant.com

#11Bruce Momjian
bruce@momjian.us
In reply to: Guido Barosio (#10)
Re: Lack of urgency in 8.3 reviewing

I think one of the things that is preventing urgency is that everyone
knows we have large patches unapplied, so they know that their lack of
activity is not holding up the release. Any way around that?

---------------------------------------------------------------------------

bruce wrote:

In talking to people who are assigned to review patches or could review
patches, I often get the reply, "Oh, yea, I need to do that".

Folks, we are six weeks into feature freeze and have made slim progress
on getting patches reviewed and applied. As I stated earlier, we are
now looking at August/September for beta, but that might be pushed back
even later if we don't get more progress.

It seems there is a lot of reliance on Tom to get the patches applied,
but I don't think that is fair or reasonable. I think we need more
urgency on the part of everyone to make faster progress. Patch
reviewers and committers need to take more initiative to get things done
rather than wait for some external force to prompt them.

--
Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://www.enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +

--
Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://www.enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +

#12Marc G. Fournier
scrappy@hub.org
In reply to: Bruce Momjian (#11)
Re: Lack of urgency in 8.3 reviewing

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- --On Wednesday, May 16, 2007 20:09:44 -0400 Bruce Momjian <bruce@momjian.us>
wrote:

I think one of the things that is preventing urgency is that everyone
knows we have large patches unapplied, so they know that their lack of
activity is not holding up the release. Any way around that?

Set a fixed date (ie. 3 weeks) and whatever isn't in gets punted to 8.4 ... if
that means those 'large patches' don't get applied, so be it ...

---------------------------------------------------------------------------

bruce wrote:

In talking to people who are assigned to review patches or could review
patches, I often get the reply, "Oh, yea, I need to do that".

Folks, we are six weeks into feature freeze and have made slim progress
on getting patches reviewed and applied. As I stated earlier, we are
now looking at August/September for beta, but that might be pushed back
even later if we don't get more progress.

It seems there is a lot of reliance on Tom to get the patches applied,
but I don't think that is fair or reasonable. I think we need more
urgency on the part of everyone to make faster progress. Patch
reviewers and committers need to take more initiative to get things done
rather than wait for some external force to prompt them.

--
Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://www.enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +

--
Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://www.enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +

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- ----
Marc G. Fournier Hub.Org Networking Services (http://www.hub.org)
Email . scrappy@hub.org MSN . scrappy@hub.org
Yahoo . yscrappy Skype: hub.org ICQ . 7615664
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#13Jonah H. Harris
jonah.harris@gmail.com
In reply to: Marc G. Fournier (#12)
Re: Lack of urgency in 8.3 reviewing

On 5/16/07, Marc G. Fournier <scrappy@hub.org> wrote:

Set a fixed date (ie. 3 weeks) and whatever isn't in gets punted to 8.4 ... if
that means those 'large patches' don't get applied, so be it ...

I disagree with that approach. Larger more complex patches required
much more work and effort than small, simple ones. Not only do I
think it's unfair to the authors who spent considerably more time on
their work, but I think it also sets a bad precedent for future work;
saying, in short, that if you want to make large strides to improve
PostgreSQL, and you followed the community development process, you're
still potentially last in line for review.

--
Jonah H. Harris, Software Architect | phone: 732.331.1324
EnterpriseDB Corporation | fax: 732.331.1301
33 Wood Ave S, 3rd Floor | jharris@enterprisedb.com
Iselin, New Jersey 08830 | http://www.enterprisedb.com/

#14Bruce Momjian
bruce@momjian.us
In reply to: Jonah H. Harris (#13)
Re: Lack of urgency in 8.3 reviewing

Jonah H. Harris wrote:

On 5/16/07, Marc G. Fournier <scrappy@hub.org> wrote:

Set a fixed date (ie. 3 weeks) and whatever isn't in gets punted to 8.4 ... if
that means those 'large patches' don't get applied, so be it ...

I disagree with that approach. Larger more complex patches required
much more work and effort than small, simple ones. Not only do I
think it's unfair to the authors who spent considerably more time on
their work, but I think it also sets a bad precedent for future work;
saying, in short, that if you want to make large strides to improve
PostgreSQL, and you followed the community development process, you're
still potentially last in line for review.

Yep. We lose a lot of credibility if we did that.

--
Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://www.enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +

#15Marc G. Fournier
scrappy@hub.org
In reply to: Bruce Momjian (#14)
Re: Lack of urgency in 8.3 reviewing

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- --On Wednesday, May 16, 2007 21:04:27 -0400 Bruce Momjian <bruce@momjian.us>
wrote:

Jonah H. Harris wrote:

On 5/16/07, Marc G. Fournier <scrappy@hub.org> wrote:

Set a fixed date (ie. 3 weeks) and whatever isn't in gets punted to 8.4
... if that means those 'large patches' don't get applied, so be it ...

I disagree with that approach. Larger more complex patches required
much more work and effort than small, simple ones. Not only do I
think it's unfair to the authors who spent considerably more time on
their work, but I think it also sets a bad precedent for future work;
saying, in short, that if you want to make large strides to improve
PostgreSQL, and you followed the community development process, you're
still potentially last in line for review.

Yep. We lose a lot of credibility if we did that.

So, we lose no credibility if we sit in feature freeze indefinitely, with no
direction, while we wait for reviewers to finish reviewing?

- ----
Marc G. Fournier Hub.Org Networking Services (http://www.hub.org)
Email . scrappy@hub.org MSN . scrappy@hub.org
Yahoo . yscrappy Skype: hub.org ICQ . 7615664
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#16Bruce Momjian
bruce@momjian.us
In reply to: Marc G. Fournier (#15)
Re: Lack of urgency in 8.3 reviewing

Marc G. Fournier wrote:

Jonah H. Harris wrote:

On 5/16/07, Marc G. Fournier <scrappy@hub.org> wrote:

Set a fixed date (ie. 3 weeks) and whatever isn't in gets punted to 8.4
... if that means those 'large patches' don't get applied, so be it ...

I disagree with that approach. Larger more complex patches required
much more work and effort than small, simple ones. Not only do I
think it's unfair to the authors who spent considerably more time on
their work, but I think it also sets a bad precedent for future work;
saying, in short, that if you want to make large strides to improve
PostgreSQL, and you followed the community development process, you're
still potentially last in line for review.

Yep. We lose a lot of credibility if we did that.

So, we lose no credibility if we sit in feature freeze indefinitely, with no
direction, while we wait for reviewers to finish reviewing?

Well, if we stay indefinitely, then we have no release and we close up
the project. I think eventually we will release.

--
Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://www.enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +

#17Joshua D. Drake
jd@commandprompt.com
In reply to: Marc G. Fournier (#15)
Re: Lack of urgency in 8.3 reviewing

Marc G. Fournier wrote:

I disagree with that approach. Larger more complex patches required
much more work and effort than small, simple ones. Not only do I
think it's unfair to the authors who spent considerably more time on
their work, but I think it also sets a bad precedent for future work;
saying, in short, that if you want to make large strides to improve
PostgreSQL, and you followed the community development process, you're
still potentially last in line for review.

Yep. We lose a lot of credibility if we did that.

So, we lose no credibility if we sit in feature freeze indefinitely, with no
direction, while we wait for reviewers to finish reviewing?

*cough* that is hardly what is happening. Just today we had two people
step up and commit to help reviewing. One of them is a committer (AndrewD).

I believe under no uncertain terms, that if we continual proactive
communication over the next several weeks that we will see a marked and
steady improvement to our existing status.

Let's keep this on earth shall we.

Sincerely,

Joshua D. Drake

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#18Pavan Deolasee
pavan.deolasee@gmail.com
In reply to: Bruce Momjian (#7)
Re: Lack of urgency in 8.3 reviewing

On 5/16/07, Bruce Momjian <bruce@momjian.us> wrote:

Yep, that is part of our problem, but even items people have already
said they _can_ review have shown little progress.

For complex patches, it might help to identify and associate a core/senior
community member in the early stages of design and development. This
member will then have enough insight into the work as it progresses and can
him/herself act as a committer and/or help the committer later.

We developed HOT in a phased manner. Had each of the incremental patches
been reviewed, I think the review process would have been much easier
and less painful. Also that would have helped us to identify any obvious
bugs/show stoppers early in the cycle and might have even generated better
ideas to do things differently.

Having said that, I fully understand the difficulties of the committers who
need to put substantial efforts in understanding the patch and guage its
overall impact.

Thanks,
Pavan

--

EnterpriseDB http://www.enterprisedb.com

#19Dave Page
dpage@postgresql.org
In reply to: Marc G. Fournier (#12)
Re: Lack of urgency in 8.3 reviewing

Marc G. Fournier wrote:

--On Wednesday, May 16, 2007 20:09:44 -0400 Bruce Momjian <bruce@momjian.us>
wrote:

I think one of the things that is preventing urgency is that everyone
knows we have large patches unapplied, so they know that their lack of
activity is not holding up the release. Any way around that?

Set a fixed date (ie. 3 weeks) and whatever isn't in gets punted to 8.4 ... if
that means those 'large patches' don't get applied, so be it ...

Meaning we lose a bunch of potentially very cool features, and seriously
hack off the developers who put significant time and effort into them,
in some cases producing numerous updates based on ongoing discussion and
feedback over a number of months.

And then in 8.4 we have the same problem...

I think we just have to accept that we're gonna have a long feature
freeze period, and ask people to help review whatever they can.

Regards, Dave.

#20Cui Shijun
rancpine@gmail.com
In reply to: Dave Page (#19)
Re: Lack of urgency in 8.3 reviewing

I want to help the reviewing work of "ctid chain following enhancement ".
I've been studying the souce code which related with that part recently.
:-)

2007/5/17, Dave Page <dpage@postgresql.org>:

Show quoted text

I think we just have to accept that we're gonna have a long feature
freeze period, and ask people to help review whatever they can.

Regards, Dave.

---------------------------(end of broadcast)---------------------------
TIP 6: explain analyze is your friend

#21Dave Page
dpage@postgresql.org
In reply to: Cui Shijun (#20)
Re: Lack of urgency in 8.3 reviewing

Cui Shijun wrote:

I want to help the reviewing work of "ctid chain following enhancement ".
I've been studying the souce code which related with that part recently.
:-)

Please go ahead :-)

Regards Dave

#22Pavan Deolasee
pavan.deolasee@gmail.com
In reply to: Cui Shijun (#20)
Re: Lack of urgency in 8.3 reviewing

On 5/17/07, Cui Shijun <rancpine@gmail.com> wrote:

I want to help the reviewing work of "ctid chain following enhancement ".
I've been studying the souce code which related with that part recently.
:-)

Tom had objected to this patch on the grounds that it adds complexity
without any significant gains. Though I don't completely agree with the
first part, the second part is indeed debatable since the code is touched
only
for infrequently.

Thanks,
Pavan

--

EnterpriseDB http://www.enterprisedb.com

#23Bruce Momjian
bruce@momjian.us
In reply to: Pavan Deolasee (#22)
Re: Lack of urgency in 8.3 reviewing

Pavan Deolasee wrote:

On 5/17/07, Cui Shijun <rancpine@gmail.com> wrote:

I want to help the reviewing work of "ctid chain following enhancement ".
I've been studying the souce code which related with that part recently.
:-)

Tom had objected to this patch on the grounds that it adds complexity
without any significant gains. Though I don't completely agree with the
first part, the second part is indeed debatable since the code is touched
only
for infrequently.

Right. The reason the patch was kept in the queue is that there was
discussion that HOT will exercise that part of the code a lot more than
it does currently.

--
Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://www.enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +

#24Cui Shijun
rancpine@gmail.com
In reply to: Bruce Momjian (#23)
Re: Lack of urgency in 8.3 reviewing

I see...
I checked part of HOT patches(patch1), and found that it involves too
many things I am not currently familar with. Maybe I should change an
item to work. :-(
Since I only studied part of source codes about transaction
processing(lmgr/MVCC/xact but without xlog.c), I want to study
"Group Commit" patch and try to review it, any suggestions?

2007/5/17, Bruce Momjian <bruce@momjian.us>:

Show quoted text

Pavan Deolasee wrote:

On 5/17/07, Cui Shijun <rancpine@gmail.com> wrote:

I want to help the reviewing work of "ctid chain following enhancement ".
I've been studying the souce code which related with that part recently.
:-)

Tom had objected to this patch on the grounds that it adds complexity
without any significant gains. Though I don't completely agree with the
first part, the second part is indeed debatable since the code is touched
only
for infrequently.

Right. The reason the patch was kept in the queue is that there was
discussion that HOT will exercise that part of the code a lot more than
it does currently.

--
Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://www.enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +

#25Heikki Linnakangas
heikki@enterprisedb.com
In reply to: Cui Shijun (#24)
Re: Lack of urgency in 8.3 reviewing

Cui Shijun wrote:

I see...
I checked part of HOT patches(patch1), and found that it involves too
many things I am not currently familar with. Maybe I should change an
item to work. :-(

Yeah, that's one big patch..

Since I only studied part of source codes about transaction
processing(lmgr/MVCC/xact but without xlog.c), I want to study
"Group Commit" patch and try to review it, any suggestions?

There's no group commit patch, just some discussion, and probably won't
be until 8.4.

Maybe one of these would interest you:
- deferred transaction/waitless COMMIT
- full page writes improvement
- maintaining cluster order on insert
- heap page diagnostic functions

Make sure you look at the latest version of the patches.

--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com

#26Cui Shijun
rancpine@gmail.com
In reply to: Heikki Linnakangas (#25)
Re: Lack of urgency in 8.3 reviewing

Thank you for your suggestions, I am thinking about "Full page writes
improvement". It seems not so complicated, just fit for a novice like
me.
I'll work on it. :-)

2007/5/17, Heikki Linnakangas <heikki@enterprisedb.com>:

Show quoted text

Cui Shijun wrote:

I see...
I checked part of HOT patches(patch1), and found that it involves too
many things I am not currently familar with. Maybe I should change an
item to work. :-(

Yeah, that's one big patch..

Since I only studied part of source codes about transaction
processing(lmgr/MVCC/xact but without xlog.c), I want to study
"Group Commit" patch and try to review it, any suggestions?

There's no group commit patch, just some discussion, and probably won't
be until 8.4.

Maybe one of these would interest you:
- deferred transaction/waitless COMMIT
- full page writes improvement
- maintaining cluster order on insert
- heap page diagnostic functions

Make sure you look at the latest version of the patches.

--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com

#27Zdenek Kotala
Zdenek.Kotala@Sun.COM
In reply to: Heikki Linnakangas (#25)
Re: Lack of urgency in 8.3 reviewing

Heikki Linnakangas wrote:

- heap page diagnostic functions

I would like to take this review (after PGCon).

Zdenek

#28Heikki Linnakangas
heikki@enterprisedb.com
In reply to: Zdenek Kotala (#27)
Re: Lack of urgency in 8.3 reviewing

Zdenek Kotala wrote:

Heikki Linnakangas wrote:

- heap page diagnostic functions

I would like to take this review (after PGCon).

Too late, Bruce applied it already :).

More eyeballs on it still wouldn't hurt of course.

--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com

#29Zdenek Kotala
Zdenek.Kotala@Sun.COM
In reply to: Heikki Linnakangas (#28)
Re: Lack of urgency in 8.3 reviewing

Heikki Linnakangas wrote:

Zdenek Kotala wrote:

Heikki Linnakangas wrote:

- heap page diagnostic functions

I would like to take this review (after PGCon).

Too late, Bruce applied it already :).

Yes ... Never mind

What's about

- full page writes improvement

but I will have time after PGCon.

Zdenek

#30Alvaro Herrera
alvherre@commandprompt.com
In reply to: Zdenek Kotala (#29)
Re: Lack of urgency in 8.3 reviewing

Zdenek Kotala wrote:

Heikki Linnakangas wrote:

Zdenek Kotala wrote:

Heikki Linnakangas wrote:

- heap page diagnostic functions

I would like to take this review (after PGCon).

Too late, Bruce applied it already :).

Yes ... Never mind

You know, the fact that it was applied does not mean that it doesn't
need review. If there is a bug on it which your review can find, we
would like to know before it is released.

The review process is not just so that it can be flown past some evil
committee.

--
Alvaro Herrera http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

#31Alvaro Herrera
alvherre@alvh.no-ip.org
In reply to: Alvaro Herrera (#30)
Re: Lack of urgency in 8.3 reviewing

Alvaro Herrera wrote:

Zdenek Kotala wrote:

Heikki Linnakangas wrote:

Zdenek Kotala wrote:

Heikki Linnakangas wrote:

- heap page diagnostic functions

I would like to take this review (after PGCon).

Too late, Bruce applied it already :).

Yes ... Never mind

You know, the fact that it was applied does not mean that it doesn't
need review. If there is a bug on it which your review can find, we
would like to know before it is released.

The review process is not just so that it can be flown past some evil
committee.

I forgot to add that it seems that a general feeling here is that as
soon as code is committed, it is Tom Lane's problem if there is a bug,
because he will track it down and fix it. So if it was committed, we
can forget about it because he'll take care.

--
Alvaro Herrera http://www.PlanetPostgreSQL.org/
"Granting software the freedom to evolve guarantees only different results,
not better ones." (Zygo Blaxell)

#32Heikki Linnakangas
heikki@enterprisedb.com
In reply to: Alvaro Herrera (#31)
Re: Lack of urgency in 8.3 reviewing

Alvaro Herrera wrote:

Alvaro Herrera wrote:

Zdenek Kotala wrote:

Heikki Linnakangas wrote:

Zdenek Kotala wrote:

Heikki Linnakangas wrote:

- heap page diagnostic functions

I would like to take this review (after PGCon).

Too late, Bruce applied it already :).

Yes ... Never mind

You know, the fact that it was applied does not mean that it doesn't
need review. If there is a bug on it which your review can find, we
would like to know before it is released.

The review process is not just so that it can be flown past some evil
committee.

I forgot to add that it seems that a general feeling here is that as
soon as code is committed, it is Tom Lane's problem if there is a bug,
because he will track it down and fix it. So if it was committed, we
can forget about it because he'll take care.

I hope that's not how people think. I try to track down bugs when
they're reported when they're in areas of code that I'm familiar with,
but Tom still usually beats me to it.

--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com

#33Jim C. Nasby
decibel@decibel.org
In reply to: Cui Shijun (#26)
Re: Lack of urgency in 8.3 reviewing

On Fri, May 18, 2007 at 12:33:11AM +0800, Cui Shijun wrote:

Thank you for your suggestions, I am thinking about "Full page writes
improvement". It seems not so complicated, just fit for a novice like
me.
I'll work on it. :-)

Updated on http://developer.postgresql.org/index.php/Todo:PatchStatus
--
Jim Nasby decibel@decibel.org
EnterpriseDB http://enterprisedb.com 512.569.9461 (cell)

#34Jim C. Nasby
decibel@decibel.org
In reply to: Zdenek Kotala (#29)
Re: Lack of urgency in 8.3 reviewing

On Fri, May 18, 2007 at 03:21:00PM +0200, Zdenek Kotala wrote:

What's about

- full page writes improvement

but I will have time after PGCon.

Added you to the list for that at
http://developer.postgresql.org/index.php/Todo:PatchStatus
--
Jim Nasby decibel@decibel.org
EnterpriseDB http://enterprisedb.com 512.569.9461 (cell)

#35Ron Mayer
rm_pg@cheapcomplexdevices.com
In reply to: Bruce Momjian (#1)
Idea that might inspire more patch reviewing.

Bruce Momjian wrote:

In talking to people who are assigned to review patches or could review
patches, I often get the reply, "Oh, yea, I need to do that".

Would it inspire more people to learn enough to become patch
reviewers if patch authors scheduled walkthroughs of their
patches with question and answer sessions over IRC or maybe
even some voice conferencing system like skype?

While it might not be of immediate value, I imagine a number
of inspiring-to-be-hackers might find such walkthroughs
enlightening, and if actual qualified reviewers participate
in the Q&A during those walkthroughs seeing the kinds of
questions raised would be quite educational as well.

I don't know if this would help - I guess it needs 3 things:
patch authors willing to do such walkthroughs, qualified
people willing to participate in them, and enough wannabe
hackers wanting to listen in.

Do people think this would help- or is it just a
clunkier way of doing what's already done via email
on the patches list?

#36Zdenek Kotala
Zdenek.Kotala@Sun.COM
In reply to: Ron Mayer (#35)
Re: Idea that might inspire more patch reviewing.

Ron Mayer wrote:

Bruce Momjian wrote:

In talking to people who are assigned to review patches or could review
patches, I often get the reply, "Oh, yea, I need to do that".

Would it inspire more people to learn enough to become patch
reviewers if patch authors scheduled walkthroughs of their
patches with question and answer sessions over IRC or maybe
even some voice conferencing system like skype?

It is common in one company but I'm not sure if it is possible do in
open source community.

I think the following tool looks likes good solution for patch review:

http://www.chipx86.com/blog/?p=222
http://code.google.com/p/reviewboard/

Zdenek