Re: [Toolserver-l] Toolserver -- Labs

2013-05-02 Thread Tim Landscheidt
(anonymous) wrote:

 [...]

 Database replication came up yet again in the office hours. Many
 developers (myself included) seem to be holding off on Labs until database
 replication is up and running. The sooner this can happen, the better. But
 the remaining sticking point seems to be cross-database joins, which
 people in the office hours suggested using federated tables or application
 logic to replace. It would help if the Labs folks could better explain
 _why_ cross-database joins won't be supported (I think most developers
 would agree with the reasoning) and offer better guidance and
 documentation for how to work around this hurdle. (For example, what is a
 federated table?)

 [...]

The problem with this decision is the effort spent and the
insincerity.  If database replication for Labs would have
meant moving some dbxxx servers to labsdbxxx, adding the
views existing on Toolserver and tightening some firewall
rules, it could have been set up in a month, and any moaning
about having to use federated tables would have been si-
lenced by the minutes it would take to add another server to
the cluster to increase performance compared to the years it
takes at Toolserver.

Or there could have been some new concept like Galera men-
tioned by Nosy that eases maintenance because it is not some
sparsely documented Solaris thingy in River style.

But now the plan is to have two clusters (PreLabsDBDBS and
LabsDB), use triggers to remove data and then (addition-
ally!) views, end up with less functionality than the
Toolserver while gaining nothing, and all that takes half a
year to set up in a cloak-and-dagger way while publicly the
need for cross-database JOINs is acknowledged.

Tim


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Re: [Toolserver-l] Toolserver -- Labs

2013-05-01 Thread DaB.
Hello,
At Wednesday 01 May 2013 14:46:08 DaB. wrote:
  The Toolserver had a tendency to make breaking changes

sorry, I have to disagree here. We are very backwards-compatible. We still 
support a Solaris-login-server just because people are too lazzy to convert 
their stuff to Linux, we still support 2 variants of cron because the users can 
not decide which one to use. We have let people run non-SGE-task 2 YEARS after 
River announced the usage of SGE.
If our little changes are too much for you, than a moving to Labs will be out 
of question for you.

Sincerely,
DaB.

-- 
Userpage: [[:w:de:User:DaB.]] — PGP: 0x2d3ee2d42b255885


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[Toolserver-l] Toolserver -- Labs

2013-04-30 Thread MZMcBride
Hi.

I've been a big proponent of the idea that we should work toward the
creation of multiple Toolservers. Redundancy in this area would be a good
thing. Setting up infrastructure that allows any person with an AWS
account or extra server capacity to set up and run their own full
Toolserver (that is, set up real-time database replication + shared
hosting) would be great.

That said, I think it would be foolish to ignore the fact that the German
Toolserver is slowly dying and that Wikimedia Labs is its natural
successor. There was an IRC office hours earlier today and my takeaway
from it was that Labs is on the right path, but that it isn't marketing
itself well.

Lately, the Toolserver has been horribly unstable. Web tools stop working,
queries are killed, databases are corrupt, replication lag hurts, and
everything feels overloaded and tired. Labs should better advertise itself
as a robust, stable hosting platform. Stability is important to developers
with limited time, who don’t want to spend their time debugging hosting
issues. The Toolserver had a tendency to make breaking changes (changing
the operating system, changing the type of Web server, killing and then
resuscitating support for Vixie cron, requiring the use of SGE, etc.).
Labs should implement and emphasize a better approach to these hosting
issues, to garner adopters and supporters.

Database replication came up yet again in the office hours. Many
developers (myself included) seem to be holding off on Labs until database
replication is up and running. The sooner this can happen, the better. But
the remaining sticking point seems to be cross-database joins, which
people in the office hours suggested using federated tables or application
logic to replace. It would help if the Labs folks could better explain
_why_ cross-database joins won't be supported (I think most developers
would agree with the reasoning) and offer better guidance and
documentation for how to work around this hurdle. (For example, what is a
federated table?)

Yes, there will always be some contingent that's upset at the seemingly
underhanded way in which Labs was brought into the world (simply announced
one day, with the implicit acceptance that the German Toolserver would be
put down in time or left to rot), but I think there are far more people
who don't support or are ambivalent toward Labs when these people could
and should be proponents for it. Labs just needs a bit better public
relations, in my opinion.

MZMcBride



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Re: [Toolserver-l] Toolserver -- Labs

2013-04-30 Thread Jeremy Baron
On Wed, May 1, 2013 at 3:02 AM, MZMcBride z...@mzmcbride.com wrote:
 (For example, what is a
 federated table?)

http://dev.mysql.com/doc/en/federated-storage-engine.html

I don't know what peter/asher had planned for the new Maria world.
http://serge.frezefond.com/2013/04/mariadb-connect-storage-engine-vs-federatedx/

-Jeremy

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Re: [Toolserver-l] Toolserver -- Labs

2013-04-30 Thread Marc A. Pelletier
On 04/30/2013 11:02 PM, MZMcBride wrote:
 It would help if the Labs folks could better explain
 _why_ cross-database joins won't be supported (I think most developers
 would agree with the reasoning) and offer better guidance and
 documentation for how to work around this hurdle. (For example, what is a
 federated table?)

That's a very good point, MZM.  That said, no small part of the reason
we haven't given a great deal of explanation on how the alternatives
will work is that we're not entirely certain what for those alternatives
will take yet - at least in the detail.

I think you're right that the developper community needs at least /some/
explanation sooner rather than later; even if it's a big picture that's
lacking in detail.  I'll try to write up something this week on that topic.

-- Marc


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Re: [Toolserver-l] Toolserver -- Labs

2013-04-30 Thread Ryan Lane
On Tue, Apr 30, 2013 at 8:02 PM, MZMcBride z...@mzmcbride.com wrote:



Yes, there will always be some contingent that's upset at the seemingly
 underhanded way in which Labs was brought into the world (simply announced
 one day, with the implicit acceptance that the German Toolserver would be
 put down in time or left to rot), but I think there are far more people
 who don't support or are ambivalent toward Labs when these people could
 and should be proponents for it. Labs just needs a bit better public
 relations, in my opinion.


Just because the events coincided didn't mean they were connected. You've
simply assumed this (in bad faith).

WMF wanted a virtual environment for testing and development during the
usability initiative. Tesla was the first iteration of that. I was hired as
full staff shortly afterward as an operation engineer to build a virtual
cluster. I very heavily disliked creating virtual machines for people, then
configuring them, setting up user accounts, ssh keys, rights, etc.. I
wanted people to do that themselves. That's when I started looking at some
clustering services that allowed self-service provisioning. The
multi-tenancy of OpenStack is what started forming my ideas for Labs.

When I started working on it, I decided that this would be something really
useful to have open to the entire community. The multi-tenancy meant we
could have communities run different projects; it felt like how we run the
content portion of our community. I especially wanted this because I didn't
like that we were unable to give shell/root to community members and wanted
a way for us to eventually allow that again.

Toolserver wasn't even a consideration of mine. Using Labs to replace TS
wasn't really an idea till a short time before the beta launch at the New
Orleans hackathon. The work that's been concentrated on so far was my
original roadmap for Labs and we're just now starting to hit the TS feature
sets.

Since the really poor initial reaction to the deprecation of TS, I've
avoided doing any marketing whatsoever, because it tended to cause
flamewars. Instead I worked on stabilizing Labs and starting on the
necessary features to enable tool labs. Thankfully Coren has been able to
work on this fully, which has greatly accelerated the schedule.

We now have Silke and Sumana working with everyone, so I feel the marketing
aspect will improve. We have move your tool/bot workshops running the
entirety of the Amsterdam Hackathon and the Wikimania Hackathon, the latter
being a mass migration hackathon (hopefully).

- Ryan
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