Hi all,
After talking with john g. about taskflow in cinder and seeing more and
more reviews showing up I wanted to start a thread to gather all our
lessons learned and how we can improve a little before continuing to add
too many more refactoring and more reviews (making sure everyone is
understa
said library.
- Discuss about any other ideas, questions and answers (and more!).
Any other topics are welcome :-)
See you all soon!
--
Joshua Harlow
It's openstack, relax... | harlo...@yahoo-inc.com
___
OpenStack-dev mailing list
Open
I think depending on use-case it can be accomplished.
The steps we have been thinking at Y!
1. Take offline APIs & nova-compute (so new/existing VMs can't be
scheduled/modified) -- existing running VMs will not be affected.
2. Save/dump nova database.
3. Translate nova database entries into corre
Hi all,
I have had in my ~/bin for a while a little script that I finally got around to
tuning up and I thought others might be interested in it/find it useful.
The concept is similar to https://pypi.python.org/pypi/autopep8 but does a
really simple action to start.
As many of u know the impor
Flow but moving forward we we’d like to try to
marry these two technologies to be more aligned in terms of APIs and feature
sets.
Renat Akhmerov
@ Mirantis Inc.
On 27 Jan 2014, at 13:21, Joshua Harlow
mailto:harlo...@yahoo-inc.com>> wrote:
Hi all,
In order to encourage further discussion of
+1 I've never understood this either personally.
>From what I know most all (correct me if I am wrong) open source projects
don't translate log messages; so it seems odd to be the special snowflake
project/s.
Do people find this type of translation useful?
It'd be nice to know how many people re
Hi all,
In order to encourage further discussion off IRC and more in public I'd like to
share a etherpad that was worked on during a 'meetup' with some of the mistral
folks and me.
https://etherpad.openstack.org/p/taskflow-mistral-jan-meetup
It was more of a (mini) in-person meetup but I thoug
Jan 26, 2014, at 12:25 PM, "Robert Collins"
> wrote:
>
>> On 27 January 2014 08:04, Joshua Harlow wrote:
>> Doesn't nova already have logic for creating N virtual machines (similar to
>> a group) in the same request? I thought it did (maybe it doesn'
Doesn't nova already have logic for creating N virtual machines (similar to a
group) in the same request? I thought it did (maybe it doesn't anymore in the
v3 API), creating N bare metal machines seems like it would comply to that api?
Sent from my really tiny device...
> On Jan 22, 2014, at 4:
nnyvale, but it's
good to know we have options if we overflow available meeting rooms or suchlike
:)
Cheers,
--
Chris Jones
On 25 Jan 2014, at 03:22, Joshua Harlow
mailto:harlo...@yahoo-inc.com>> wrote:
Yahoo! is right in the middle of sunnyvale; and probably has enough free space
Yahoo! is right in the middle of sunnyvale; and probably has enough free space
to handle all u folks (some rooms are quite big really).
I can talk with some folks here about hosting all of this here if that’s
desired (depending on how big).
-Josh
From: Roman Alekseenkov
mailto:ralekseen...@mi
Also just to note; file-injection seems unneeded when cloud-init can use
this:
http://cloudinit.readthedocs.org/en/latest/topics/examples.html#writing-out
-arbitrary-files
That I believe is in most modern versions of cloud-init (forgot when I
implemented that).
Just FYI :)
-Josh
On 1/24/14, 3:
Cloud-init 0.7.5 (not yet released) will have the ability to read from an
ec2-metadata server using SSL.
In a recent change I did we now use requests which correctly does SSL for
the ec2-metadata/ec2-userdata reading.
- http://bazaar.launchpad.net/~cloud-init-dev/cloud-init/trunk/revision/910
Fo
Another one:
https://github.com/harlowja/gerrit_view#qgerrit
That's similar to :)
Sent from my really tiny device...
> On Jan 23, 2014, at 2:42 PM, "Zane Bitter" wrote:
>
> I don't know about other projects, but we in the Heat project are constantly
> on the lookout for people who can be con
ear easy and
simple to initially do/use, but doing it correctly is really really hard
(especially at any type of scale).
-Josh
On 1/23/14, 1:35 PM, "Renat Akhmerov"
mailto:rakhme...@mirantis.com>> wrote:
>
>On 23 Jan 2014, at 08:41, Joshua Harlow
>mailto:harlo...@yahoo-inc.c
at any type of scale).
-Josh
On 1/23/14, 1:35 PM, "Renat Akhmerov" wrote:
>
>On 23 Jan 2014, at 08:41, Joshua Harlow wrote:
>
>> So to me memoizing is typically a premature optimization in a lot of
>>cases. And doing it incorrectly leads to overfilling the python
So to me memoizing is typically a premature optimization in a lot of cases. And
doing it incorrectly leads to overfilling the python processes memory (your
global dict will have objects in it that can't be garbage collected, and with
enough keys+values being stored will act just like a memory le
See you all soon!
--
Joshua Harlow
It's openstack, relax... | harlo...@yahoo-inc.com
___
OpenStack-dev mailing list
OpenStack-dev@lists.openstack.org
http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
Greetings all stackers,
I propose that we add Changbin Liu[1] to the taskflow-core team[2].
Changbin has been actively contributing to taskflow for a while now, both in
helping develop code and helping with the review load. He has provided
quality reviews and is doing an awesome job with the vari
Also with:
https://review.openstack.org/#/c/66051/
On 1/16/14, 10:40 AM, "Jeremy Stanley" wrote:
>On 2014-01-12 07:27:11 -0500 (-0500), Sean Dague wrote:
>> With the taskflow update, the only thing between upping our sqla
>> requirement to < 0.8.99 is pbr's requirements integration test
>> gett
, feedback...)
- Any other ongoing taskflow work (questions, comments, feedback...)
- Discuss about any other potential new use-cases for said library.
- Discuss about any other ideas, questions and answers (and more!).
Any other topics are welcome :-)
See you all soon!
--
Joshua Harlow
Very nice write up +1
A question, many modules are pulling in oslo.log as seen from the dependency
graph which itself then pulls in oslo.config. Is the plan to just have all
these modules use the regular python logging and have oslo.log be a
plugin/formatter/adapter to python logging?
Likely p
+1
Very interesting to read about these bottlenecks and very grateful they are
being addressed.
Sent from my really tiny device...
> On Jan 11, 2014, at 8:44 AM, "Sean Dague" wrote:
>
> First, thanks a ton for diving in on all this Russell. The big push by the
> Nova team recently is really
And my ring, my precious.
Count me in!
On 1/9/14, 6:06 AM, "Julien Danjou" wrote:
>On Thu, Jan 09 2014, Sean Dague wrote:
>
>> I'm hopefully that if we can get everyone looking at this one a single
>>day,
>> we can start to dislodge the log jam that exists.
>
>I will help you bear this burd
welcome :-)
See you all soon!
--
Joshua Harlow
It's openstack, relax... | harlo...@yahoo-inc.com<mailto:harlo...@yahoo-inc.com>
___
OpenStack-dev mailing list
OpenStack-dev@lists.openstack.org
http://lists.openstack.org/cgi-bin/mailm
velopment Mailing List (not for usage questions)"
mailto:openstack-dev@lists.openstack.org>>
Subject: Re: [openstack-dev] [requirements] - taskflow preventing sqla 0.8
upgrade
On Sun, Jan 5, 2014 at 5:02 PM, James E. Blair
mailto:jebl...@openstack.org>> wrote:
Joshua Harl
Was the history filtered out using something like
http://git-scm.com/docs/git-filter-branch??
There seems to be a lot of commit history that isn't related to gantt files
(baremetal…)
Was the plan to figure out which files to keep, then cleanup that commit
history?
I wouldn't expect
https://g
Agreed, we are going to expand it and work on figuring out how to test against
multiple versions. It does work with 0.8 and it seems even like 0.9 works fine
also. But all compatible also means I can't guarantee 0.10 (if it comes out)
will work since afaik semver means sqlalchemy could still bre
With regards to the futures module it should just work fine with the packaging
of https://pypi.python.org/pypi/futures which is a backport of the 3.2
concurrent futures package into 2.6,2.7, so that's the package there.
Feel free to bug me on irc if u want any other help with dependencies, the
I was more of referring to general dependency issues, sqlalchemy hopefully
never again but one never knows :P
Sent from my really tiny device...
> On Jan 4, 2014, at 8:40 AM, "Thomas Goirand" wrote:
>
>> On 01/05/2014 12:12 AM, Joshua Harlow wrote:
>> it won
Such a bad state seems like FUD.
Taskflow was just syncing its requirements with the same requirements that
everyone else is... Those global requirements have <0.7.99 in them as we speak
(which is why taskflow picked up that version).
The issue here will be worked through and fixed, it won't b
really sure which is the best, none seem super-great, but
sometimes u just work with what u got :-P
On 1/3/14, 3:32 PM, "Sean Dague" wrote:
>On 01/03/2014 06:14 PM, Joshua Harlow wrote:
>> Since the library model is what most everyone else uses outside of
>> opens
Since the library model is what most everyone else uses outside of
openstack (I assume?) what can we do to get there so that this model works
as well?
Expanding dependencies recursively seems like it could help? This could
then detect transitive dependency issues (and doesn't seem so hard to do).
low/+bug/1265886).
If we really need to I can push out a 0.1.2 with the unpinned version (one of
the above reviews).
-Josh
From: Doug Hellmann
mailto:doug.hellm...@dreamhost.com>>
Date: Friday, January 3, 2014 at 11:44 AM
To: Joshua Harlow mailto:harlo...@yahoo-inc.com>>
Cc: "O
Sounds good to me.
Talked on #openstack-infra with some folks there and just awaiting next
steps.
Doesn't seem like should be anything to hard to adjust/move/...
-Josh
On 1/3/14, 11:27 AM, "Sean Dague" wrote:
>On 01/03/2014 12:45 PM, Joshua Harlow wrote:
>> Ok, I
e-oslo-splitting-the-incubator
would seem to cause even more of these types of new 3rd party libraries to
appear on pypi (and therefore causing similar issues of transitive
dependencies as taskflow).
Will bug u on #openstack-infra soon :-)
On 1/3/14, 9:05 AM, "Sean Dague" wrote:
>
So taskflow was tested with the version of sqlalchemy that was available and in
the requirements at the time of its 0.1 release (taskflow syncs it's
requirements from the same global requirements). From what I remember this is
the same requirement that everyone else is bound to:
SQLAlchemy>=0.7
Agreed taskflow doesn't currently provide scheduling as it was thought that
reliable execution that can be restarted and resumed is the foundation that
someone using taskflow can easily provide scheduling ontop of... Better IMHO to
have a project doing this foundation well (since openstack would
Any reason to not use taskflow (https://wiki.openstack.org/wiki/TaskFlow) to
help u here??
I think it could be easily adapted to do what u want, and would save u from
having to recreate the same task execution logic that everyone seems to rebuild…
-Josh
From: Greg Hill mailto:greg.h...@rackspa
Since its xmas in most of the world lets skip the IRC meeting this week
(normally on thursdays).
See you all soon and have a great vacation!
P.S. #openstack-state-management if u feel the need to chat :-)
--
Joshua Harlow
It's openstack, relax... | harlo...@yahoo-in
/TaskFlow
## Agenda (30-60 mins):
- Discuss any action items from last meeting.
- Discuss about any other potential new use-cases for said library.
- Discuss about any other ideas, questions and answers (and more!).
Any other topics are welcome :-)
See you all soon!
--
Joshua Harlow
quot;iKhan"
mailto:ik.ibadk...@gmail.com>> wrote:
Ok, I though we can make make cinder-volume aware of SIGTERM call and make sure
it terminates with cleaning all the existing operations. If its not possible
then probably SIGHUB is the only solution. :(
On Mon, Dec 16, 2013 at 10:25 AM, Joshua
w
this is the hard way of achieving the objective and SIGHUP approach will handle
it more gracefully. As you mentioned it is a major change, tentatively can we
use SIGTERM to achieve the objective?
On Mon, Dec 16, 2013 at 9:50 AM, Joshua Harlow
mailto:harlo...@yahoo-inc.com>> wrote:
In your
n Sun, Dec 15, 2013 at 12:49 PM, Joshua Harlow
mailto:harlo...@yahoo-inc.com>> wrote:
I don't currently know of a one size fits all solution here. There was talk at
the summit of having the cinder app respond to a SIGHUP signal and attempting
to reload config on this signal. Dynamic reloa
I don't currently know of a one size fits all solution here. There was talk at
the summit of having the cinder app respond to a SIGHUP signal and attempting
to reload config on this signal. Dynamic reloading is tricky business
(basically u need to unravel anything holding references to the old c
Maybe time to revive something like:
https://review.openstack.org/#/c/12759/
>From experience, all sites (and those internal to yahoo) provide a /status
(or equivalent) that is used for all sorts of things (from basic
load-balancing up/down) to other things like actually introspecting the
state
topics are welcome :-)
See you all soon!
--
Joshua Harlow
It's openstack, relax... | harlo...@yahoo-inc.com
___
OpenStack-dev mailing list
OpenStack-dev@lists.openstack.org
http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
Yup, IMHO this is where the rally[1] project, and others that attempt to
push the boundaries are really helping openstack become much better around
these types of issues. At yahoo! in a short-time it will not be that
uncommon to boot 100+ VMs concurrently (traffic spikes, other random QA
testing th
Sounds like a pretty neat idea.
I like it!
Another idea: instead of saying pushing for one agent to rule them all why
don't we come up with a desired reference spec (maybe including a reference
implementation?) that the salt, chef, mcollective, (other...) can base theres
off of. In a way this
Agreed,
Chatting earlier today on #cloud-init about all of this I think scott convinced
me that maybe we (the joint we in the community at large) should think about
asking ourselves what do we really want a guest agent for/to do?
If it's for software installation or user management then aren't
Another idea that I'll put up for consideration (since I work with the
cloud-init codebase also).
Cloud-init[1] which currently does lots of little useful initialization
types of activities (similar to the racker agents activities) has been
going through some of the same questions[2] as to should
Could jsonschema[1] be used here to do the options schema part? It works on
dictionaries (and really isn't tied to json). But maybe I am missing some
greater context/understanding (see other emails).
[1] https://pypi.python.org/pypi/jsonschema
Sent from my really tiny device...
> On Dec 6, 201
the same way u wrote it, part of this ML should
be about teaching others your viewpoints, not getting frustrated over simple
things like misunderstandings...
Sent from my really tiny device...
> On Dec 6, 2013, at 9:16 AM, "Mark McLoughlin" wrote:
>
>> On Fri, 2013-12-06
Previous not precious, ha, durn autocorrect, lol.
Sent from my really tiny device...
> On Dec 6, 2013, at 9:50 AM, "Joshua Harlow" wrote:
>
> Forgive me for not understanding your precious email (which I guess was
> confusing for me to understand). This one clears that
I really have to agree with this. It's especially important if oslo.messaging
is also used in libraries like taskflow. If oslo.messaging imposes that users
of it must use oslo.config then by using it in taskflow, taskflow then imposes
the same oslo.config usage. This makes all libraries that use
soon!
--
Joshua Harlow
It's openstack, relax... | harlo...@yahoo-inc.com
___
OpenStack-dev mailing list
OpenStack-dev@lists.openstack.org
http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
quot;Mark McLoughlin" wrote:
>On Tue, 2013-12-03 at 22:31 +, Joshua Harlow wrote:
>> Sure, no one has said it. But it seems to be implied, otherwise these
>> types of discussions wouldn't occur. Right?
>
>You're assuming the Nova objects API is at a point
Sure, no one has said it. But it seems to be implied, otherwise these
types of discussions wouldn't occur. Right?
On 12/3/13 2:25 PM, "Mark McLoughlin" wrote:
>On Tue, 2013-12-03 at 22:07 +0000, Joshua Harlow wrote:
>
>> Process for process sake imho has been a pro
oslo.messaging (so maybe it can be adjusted to work with things other than
eventlet to make it python33 compat).
On 12/3/13 2:01 AM, "Julien Danjou" wrote:
>On Mon, Dec 02 2013, Joshua Harlow wrote:
>
>> Thanks for writing this up, looking forward to seeing this happen so
>>t
Why not just make it a pypi party library from the start?
Call it 'super-objects' or something. Why does it have to be connected to
oslo.incubator?
Process for process sake imho has been a problem for oslo.
Why not just go straight to building a library (does it matter if it's in
oslo?) that is
Thanks for writing this up, looking forward to seeing this happen so that
oslo.messaging can be used outside of the core openstack projects (and be
used in libraries that do not want to force a oslo.cfg model onto users of
said libraries).
Any idea of a timeline as to when this would be reflected
Hi all state-management folks (and others),
Since its turkey day (thanksgiving) for most of the people in the U.S. lets
skip the meeting this week.
#openstack-state-management if u need to find us anyway.
See u next week folks!
-Josh
___
OpenStac
+2
Sent from my really tiny device...
> On Nov 25, 2013, at 5:02 AM, "Davanum Srinivas" wrote:
>
> Many thanks to everyone who helped with the many fixes. Kudos to
> Joe/Clark for spear heading the effort!
>
> -- dims
>
>> On Mon, Nov 25, 2013 at 12:00 AM, Joe Gordon wrote:
>> Hi All,
>>
>>
+2
Turnstile seems to be a good middle ground (other companies I know have
solutions for this problem via other software), does anyone have operational
knowledge they can share about how turnstile has worked out for them?
Sent from my really tiny device...
> On Nov 25, 2013, at 9:22 AM, "Kevin
+2
This kind of confusion is actually very bad from an external perspective and
from a user perspective.
Should this just get resolved by the TC once and for all? I remember this same
project vs tenant question happening like 2 years ago (maybe less) and it makes
us all look sort if "mad" if
rom you just now.
I will probably join 'State management' IRC meeting.
( If I could get up early:) or join 'Cinder' IRC meeting)
Haruka Tanizawa
2013/11/21 Joshua Harlow mailto:harlo...@yahoo-inc.com>>
Howdy!
My guess is there is very much enough work to go around and it
other potential new use-cases for said library.
- Discuss about any other ideas, problems, open-reviews, issues, solutions,
questions (and more!).
Any other topics are welcome :-)
See you all soon!
--
Joshua Harlow
It's openstack, relax... | harlo...@yahoo-in
w is important for me from point of cancelling with using taskflow.
So, let me help you to impl taskflow to API.
Sincerely, Haruka Tanizawa
2013/11/20 Joshua Harlow mailto:harlo...@yahoo-inc.com>>
Sweet!
Feel free to ask lots of questions and jump on both irc channels
(#openstack-stat
Agreed I like the idea.
It reminds me of the blog the solum team is setting up. I think I asked then
when they announced that blog if there was plans to make it easy for other
projects to also have there own supported blog.
http://lists.openstack.org/pipermail/openstack-dev/2013-October/017977.
At yahoo at least 50+ simultaneous will be the common case (maybe we are
special).
Think of what happens on www.yahoo.com say on the olympics, news.yahoo.com
could need 50+ very very quickly (especially if say a gold medal is won by
some famous person). So I wouldn't discount those being the commo
er entity.
More details @ http://www.slideshare.net/harlowja/taskflow-27820295
From: Salvatore Orlando mailto:sorla...@nicira.com>>
Date: Tuesday, November 19, 2013 2:22 PM
To: "OpenStack Development Mailing List (not for usage questions)"
mailto:openstack-dev@lists.openstack.org&g
Sorry that was I prefer #3 (not #2) at the end there. Keyboard failure ;)
On 11/19/13 10:27 AM, "Joshua Harlow" wrote:
>Personally I would prefer #3 from the below. #2 I think will still have to
>deal with consistency issues, just switching away from a DB doesn't mak
And also of course, nearly forgot a similar situation/review in heat.
https://review.openstack.org/#/c/49440/
Except theres was/is dealing with stack locking (a heat concept).
On 11/19/13 10:33 AM, "Joshua Harlow" wrote:
>If you start adding these states you might really want to
If you start adding these states you might really want to consider the
following work that is going on in other projects.
It surely appears that everyone is starting to hit the same problem (and
joining efforts would produce a more beneficial result).
Relevant icehouse etherpads:
- https://etherp
wrong IMHO). #1 could also work, but then u hit a vertical scaling limit
(works if u paid oracle for there DB or IBM for DB2 I suppose). I prefer
#2 since I think it is honestly needed under all solutions.
On 11/19/13 9:29 AM, "Chris Friesen" wrote:
>On 11/18/2013 06:47 PM, Joshua H
Sweet!
Feel free to ask lots of questions and jump on both irc channels
(#openstack-state-management and #openstack-cinder) if u need any help that can
be better solved in real time chat.
Thanks for helping getting this ball rolling :-)
Sent from my really tiny device...
> On Nov 19, 2013, at
From: Joe Gordon mailto:joe.gord...@gmail.com>>
Date: Monday, November 18, 2013 5:33 PM
To: Joshua Harlow mailto:harlo...@yahoo-inc.com>>
Cc: "OpenStack Development Mailing List (not for usage questions)"
mailto:openstack-dev@lists.openstack.org>>
Subject: Re: [openstack
An idea related to this, what would need to be done to make the DB have the
exact state that a compute node is going through (and therefore the scheduler
would not make unreliable/racey decisions, even when there are multiple
schedulers). It's not like we are dealing with a system which can not
Same question here. I also wonder why a new service. Yes the capabilities
might be different (but then can't this be fixed this is nova by making
nova support different capabilities in different hypervisors better). The
api's also might be different (but then can't this be fixed by making the
api p
An idea, make the lock more granular.
Instead of @utils.synchronized('any-name') I wonder if u could do something
like.
with utils.synchronized('any-name-$device-id'):
# Code here
Then at least u won't be locking at the method level (which means no
concurrency). Would that work?
From: Edgar M
I see it as important (and not theoretical).
I'd like to use oslo.messaging (and oslo.messaging.rpc) in taskflow (to
prototype how a distributed engine would work using it) and bringing in a
library which requires global configuration is almost a non-starter for
me. Although taskflow is targeted a
Greetings all stackers,
I propose that we add Anastasia Karpinska to the taskflow-core team [1].
Anastasia has been actively contributing to taskflow for a while now, both in
code and reviews. She provides high quality reviews and is doing an awesome job
with the various taskflow concepts (and is
Another thing that I remember from talking with people who work at yahoo
on the hadoop project and was an insight early on for me. I remember those
folks saying that about 2 hours of there day is spent on catching up on
mailing list emails and reviews. This is/was a change in how they operated
when
Since I just got back from HK yesterday, and I think others are still
recovering from that trip lets skip the weekly IRC meeting this week.
Also note that the US time has changed (due to the evil thing called DST).
Link: https://wiki.openstack.org/wiki/TaskFlow
Channel: #openstack-state-manageme
I prefer the library to be named 'josh', kthxbye ;)
On 11/13/13 7:26 PM, "Clint Byrum" wrote:
>Excerpts from Michael Still's message of 2013-11-13 13:24:52 -0800:
>> On Thu, Nov 14, 2013 at 8:20 AM, Eric Windisch
>>wrote:
>>
>> > I don't think it is a problem to remove the code in oslo first,
Thanks all for showing up!
http://www.slideshare.net/harlowja/taskflow-27820295
Not sure if there is an official page for this, anyway link is above (likely
video link somewhere also).
Questions, comments, feedback welcome! Thxs all for making this possible :-)
-josh
Sent from my really tiny
I think there has been, and I think there will be a good design summit
session for this.
http://icehousedesignsummit.sched.org/event/cde73dadfd67eaae5bf98b90ba7de07
3#.UnPwKiRQ3mw
I think what u have suggested could be a way to do it, as all databases do
is set intersections and unions in the end
I think there is a summit topic about what to do about a good 'oslo.db'
(not sure if it got scheduled?)
I'd always recommend reconsidering just copying what nova/cinder and a few
others have for there db structure.
I don't think that has turned out so well in the long term (a 6000+ line
file is n
wrote:
>
>
>On 10/31/2013 01:32 PM, Joshua Harlow wrote:
>> In the spirt of openness, yes I do think they are all needed.
>>
>> If they are not supported, then openstack is not open, it is a closed
>> system.
>>
>> We should strive to innovate, not striv
wrote:
>Sigh.
>
>Yay We've added more competing methods of complexity!!!
>
>Seriously. We now think that rabbit and zookeeper and mysql are ALL
>needed?
>
>Joshua Harlow wrote:
>
>>I'm pretty sure the cats out of the bag.
>>
>>https://githu
Hi all,
I just wanted to cancel the state-management IRC meeting for the next 2 weeks
due to people traveling and the HK summit.
Since it won't be as productive as usual I think we can just skip it until
after the summit :-)
Likely most people will be in #openstack-state-management anyway, fee
I'm pretty sure the cats out of the bag.
https://github.com/openstack/requirements/blob/master/global-requirements.t
xt#L29
https://kazoo.readthedocs.org/en/latest/
-Josh
On 10/31/13 7:43 AM, "Monty Taylor" wrote:
>
>
>On 10/30/2013 10:42 AM, Clint Byrum wrote:
>> So, recently we've had quite
Just wondering,
Will said infrastructure be made available to all other openstack projects?
It'd be nice to have that for other projects to (a nova blog, a taskflow
blog...). It seems/feels a little awkward to me to have solum be a special
snowflake here.
Sent from my really tiny device...
>
Lock free solutions usually involve very predictable and very well understood
(and typically provably correct) state machines. In openstack u have state
machines but I think there is work to be done to increase there
understandability and predictability.
Lock free algorithms are also extremely
nt from my really tiny device...
> On Oct 30, 2013, at 12:32 PM, "Jay Pipes" wrote:
>
> Has anyone looked into using concoord for distributed locking?
>
> https://pypi.python.org/pypi/concoord
>
> Best,
> -jay
>
>> On 10/30/2013 02:39 PM, Joshua H
+1 I think C always means something is not architected/designed correctly
or invokes the 'code smell'[1] to me.
If its to hard to test, then it will be to hard to change, which will in
the long term be a liability.
Better to avoid the liability upfront by just fixing the cause of the
'smell' in t
Yup, galera, thx! :)
As for the:
"It also doesn't handle the case where u can automatically recover from the
current resource owner (nova-compute for example) dying."
So heat is actively working on some resources, doing its thing, its binary
crashes (or kill -9 occurs), what happens? The same qu
/13 1:02 PM, "Chris Friesen" wrote:
>On 10/30/2013 01:34 PM, Joshua Harlow wrote:
>> To me u just made state consistency be a lock by another name.
>>
>> A lock protects a region of code from being mutually accessed
>
>Personally I view a lock as protecting a se
+1 ;)
On 10/30/13 12:37 PM, "Clint Byrum" wrote:
>Excerpts from Joshua Harlow's message of 2013-10-30 11:57:30 -0700:
>> As for the mutex and locking and all that problem.
>>
>> I would expect locking to be a necessity at some point for openstack.
>>
>> Even if the state transitions are the lo
To me u just made state consistency be a lock by another name.
A lock protects a region of code from being mutually accessed, u can do the
same with state consistency. In the end though u need some reliable
transactional consistent storage (a database, zookeeper, other) to store that
state (whi
901 - 1000 of 1145 matches
Mail list logo
