GNOME.Asia Summit 2014: Docs & Bugs

May 24th, 2014 by aklapper

GNOME Asia

GNOME.Asia Summit 2014 is taking place this weekend in Beijing (China) together with FUDCon APAC.

Yesterday (Friday) before the conference started, Kat, Dave and I held a hands-on session about making your first contribution to GNOME documentation (also see Kat’s blogpost). As a result, a number of tickets in Bugzilla have received comments and patches.
Apart from the pleasure to walk around in the room, take a look over the shoulders of people and helping out on non-obvious things, it was extremely eye-opening to realize again how many obstacles you need to pass in order to finally make a contribution – running a recent GNOME version, finding the documentation that is supposed to explain the following steps, having a GNOME Bugzilla account, finding a task (bug report) that sounds interesting, finding the corresponding code repository, locating the documentation file to patch in that code repository (in some subfolder called “C” instead of “en”), using git (formatting the patch, providing a commit message), uploading the patch somewhere for review.

Today I gave a presentation about managing bug reports in GNOME. About 15 to 20 people attended it and I’m very happy how it turned out – we ran out of time to triage a few tickets at the end, but the audience was interested and asked really good questions (e.g. the upstream-downstream relation)! I’m looking forward to the video recording of it.

Sponsored by GNOME Foundation

I would like to thank the organizers (especially Emily for her endless patience helping me to sort out visa issues), the sponsors, and the GNOME Foundation for paying part of my travel costs.

Wikimedia to migrate its Product Management Tools to Phabricator

May 19th, 2014 by aklapper

Slightly more correct title might be “Wikimedia to migrate its software development product/project code review issue tracking management planning tools to Phabricator”. Or something like that.

The problem

The Wikimedia technical community has used plenty of different tools for tracking bugs / product management / project management / todo lists. Bugzilla, RT, Gerrit, Mingle, Trello, Scrumbugs, Google Docs, to mention most of them.
From my personal point of view, Wikimedia Foundation is pretty bottom-up: Each team can experiment and use those tools they prefer and suit them. That also means teams might have moved from Bugzilla to Trello to Mingle to Google Docs while other teams prefer(ed) other tools. Bugzilla is our public issue tracker but misses a lot of functionality when it comes to agile development workflows, design review work, or activity feeds.

We also have some connectivity between these tools. Bingle/Bugello to sync some parts between Bugzilla and Mingle/Trello, or its-bugzilla (previously “bugzilla-hooks”) to have Gerrit post comments in Bugzilla tickets about related patches (if the bug number was correctly refered in the commit message). But things are brittle – for example, just this Friday the Gerrit→Bugzilla notifications broke.
All in all, the multitude of tools and channels is not helpful for cross-team collaboration, keeping track of what’s happening, and transparency of discussions and decisions in general as things are discussed in several places.

The idea

In late 2013, the idea was to start a discussion about a possible agreement on a recommendation for a smaller set of tools that teams could agree upon. My colleague Guillaume and I had the pleasure to facilitate the discussion and to ensure it doesn’t remain an idea only. References were a previous evaluation attempt in 2009/2010 and the Gerrit evaluation in 2012.

The steps

The first step was asking interested teams and individuals to describe their needs and workflows on a wiki discussion page.
Its content was then consolidated by Guillaume and cleaned up a little bit more by me. (I felt reminded of GNOME’s decision process to migrate from Subversion to Git but that was a survey among GNOME foundation members and hence a very different approach.)

After having those (sometimes contractive) needs and workflows collected, we tried to decrease the items in the list of candidate tools to consider, plus investigate and encourage discussing them on the related discussion page. For candidate tools not having an online test instance offered on the project’s homepage we wondered whether to set up test instances on Wikimedia Labs to make testing easier, but we left it to anybody strongly favoring a tool to set up that tool. Wikimedia Deutschland already had Scrumbugs instance in production (Scrum on top of Bugzilla) we could point to, and for Phabricator somebody had set up a test instance in Wikimedia Labs already.

To gather the broader community opinion and broader support for investigating more potential (wo)manpower, we started to prepare a Request for comments (RFC). While we listed several options at the beginning (Keep the status quo; status quo+Fulcrum; status quo+Scrumbugs; move completely to Phabricator; move partially to Phabricator; move to GitLab) the feedback quickly turned this into one question to ask the community: Move to Phabricator?
We ran this RFC for three weeks until May 6th and announced it widely on mailing lists and via banners on top of Bugzilla and mediawiki.org.

Parallel to running the RFC, we were working on sorting out the blockers for a potential migration from Bugzilla and documenting things. My colleague Quim created a comparison page between Phabricator and Bugzilla.

The decision

Phabricator project logo

The result of the RFC is that there seems to be general support for moving from our infrastructure tools to Phabricator. This won’t all happen at the same time though – we will start investigating replacing Bugzilla, RT, Trello, Mingle.
For the code review functionality (currently done via Gerrit), more work in Phabricator is needed to fit the needs defined by our community, for example when it comes to Continuous Integration. We do not plan to switch off Gerrit on the day we start using Phabricator in production and we got more items to sort out (see the list of code review related items).

For managing the project to move to Phabricator we use the Phabricator test instance itself (dogfooding for the win), by tracking missing features compared to our existing tools, and tasks that need to be solved for the migration. Also, we asked users of existing tools what they would specifically miss in Phabricator by creating (sub)tasks in our Phabricator test instance.

We have not created a Phabricator production instance yet to which we would potentially migrate to, because in the past Wikimedia ended up with a lot of tools by not enforcing migration.

Spreading the word and resource allocation

For the last months we also ran IRC office hours every two or three weeks in order to discuss and answer questions related to the project.

Last weekend the Wikimedia Hackathon took place in Zürich. There were several Phabricator related sessions (videos available for the sake of transparency; the first two videos are more like discussions though):

  1. A general quick introduction to Phabricator by my colleague Shahyar
  2. A discussion among ~10 people of what needs to be sorted out and done for Day 1 of Phabricator in production (being tracked in this Phabricator project board), plus related stakeholders and who’s going to work on what.
  3. A session by Shahyar specifically explaining the code review concept and tool in Phabricator (remember: we do not plan to switch from Gerrit to Phabricator for code review on the first day)

Current status and next steps

  • General and central information page about Wikimedia’s Phabricator instance.
  • Planning board for Wikimedia Phabricator Day 1 in Production (You see several columns here: ‘Need discussion’ needs more thoughts first until we know how to solve those tasks; ‘Ready to Go’ are tasks for which the way forward is clearly defined and somebody could start working on them; ‘Waiting for upstream’ are tickets that we have reported to upstream; ‘Doing’ is what is currently actively being worked on.)
  • The team working on Wikimedia Phabricator and the stakeholders are defined. We have tasks such as investigating migrating Bugzilla and RT data to Phabricator, plus implementing missing functionality like restricting access to certain projects by default (like for Bugzilla’s “Security” product or RT’s procurement queue) via namespaces. The WMF Technical Operations team will set up low-level infrastructure and puppetize our Phabricator instance. We have stakeholders defined to keep in contact with the team of Product Managers and the Platform and Release Engineering/QA team, we have more interested stakeholders which will provide input to help making decisions and driving things forward, and I am happy to also see volunteers being interested to get involved by diving into the code.
  • To track the tasks that Wikimedia is interested in in Phabricator’s upstream task tracker, we have a “Wikimedia” project in upstream Phabricator and the corresponding planning board.

The usual disclaimer: Plans might be subject to change and there is intentionally no timeline yet.

How you can help

Check out the Get involved section on the central project page and the planning board for Wikimedia Phabricator Day 1 in Production if there are tasks that interest you!

Thanks

I would like to thank everybody in the community who has provided input, help and support. Upstream Phabricator developers have been extremely responsive and interested in discussing our needs and fixing issues – it’s a great pleasure to work with them.
Furthermore, getting to this point would have been impossible without my wonderful colleagues in the Wikimedia Engineering Community Team who have helped so much with communication, prioritization, planning, support.

Wikimedia’s Road to Bugzilla 4.4

March 6th, 2014 by aklapper

(How we puppetized, upgraded and moved Bugzilla to another server)

Though we currently also evaluate Wikimedia’s project management tools, we will have to stick with our current infrastructure for a while. Among many other tasks, I spent the last months preparing the upgrade of Wikimedia’s Bugzilla instance from 4.2 to 4.4. Some reasons for upgrading can be found in this Bugzilla comment.

In late November 2013 I started by cleaning up Wikimedia Bugzilla’s custom CSS which was copied about five years ago and not kept in sync. It turned out that 16 of 22 files could be removed as there was no sufficient difference to upstream’s default CSS code (Bugzilla falls back to loading the default CSS file from /skins/default if no custom CSS file is found in /skins/custom). Less noise and less diffing required for future upgrades. In theory.

After testing these CSS changes on a Wikimedia Labs instance and merging them into our 4.2 production instance, I created numerous patches and put them into Gerrit (Wikimedia’s code review tool) by diffing upstream 4.2 code, upstream 4.4 code, and our custom code.

At the same time, Wikimedia’s Technical Operations team wanted to move the Bugzilla server from the kaulen server in our old Tampa datacenter to the zirconium server in our new Ashburn (Eqiad) datacenter. While you’d normally prefer to do only one thing at a time, Daniel Zahn (of Technical Operations) and I decided to create a fresh Bugzilla 4.4 instance from scratch on the new server to see into which problems we would run. During this process Daniel Zahn turned the old setup on kaulen, which was largely manual and had organically grown over the years, into a proper Puppet module. For every “missing module” error we ran into we avoided installing anything from Perl’s CPAN in Bugzilla’s /lib folder and ensured we just rely on distribution packages, for a much cleaner install. Daniel Zahn installed the needed packages by adding them to puppet code. While doing this we also removed Bugzilla’s Sitemap extension as it created sporadic Search::Sitemap errors when running Bugzilla’s checksetup.pl (plus it’s unmaintained anyway). Furthermore I ran into another runtime error to fix.

After fixing all checksetup.pl issues and having Bugzilla accessible via a web browser, only Bugzilla’s upstream CSS was displayed instead of our custom CSS. Neither was Wikimedia’s custom CSS offered as an option in the browser, nor could I log into the new Bugzilla (to check which theme is set as default in the admin settings) as the database dump we used for testing predated the creation of my user account.

After Sean Pringle of Technical Operations deployed a more recent Bugzilla database dump I expected further problems due to upstream changes to CSS loading. I was happy to see that I had been wrong: No problems with our custom CSS theming anymore. Instead, I ran into problems with our custom “See Also” field changes: Adding and removing such URLs triggered errors, and URLs themselves were not displayed (but their corresponding “Remove” checkbox). Thanks to upstream help in #bugzilla on Mozilla IRC I finally found out that Perl’s use base instead of use parent was the culprit.

After creating symlinks to /extensions/WeeklyReport/ to avoid 404 errors for the “Weekly Bug Summary” link in the sidebar (our setup is slightly busted) and after fixing two problems with our cronjobs for whining and data collection we agreed on a date to copy the database, do some maintenance work, and switch the DNS entry. This was announced one week in advance by adding a banner to Bugzilla via its announcehtml parameter.

A few hours before the switch on February 12th 2014, Daniel lowered the Time-to-live (TTL) values of the DNS entry of our Bugzilla. When the migration started, I set Bugzilla’s shutdown parameter to make the web UI inaccessible and also the WebService API return a 503 error for the Bingle script that syncs Bugzilla with Wikimedia’s Mingle instance. This was important to make sure that nobody can write anymore to the old database. We updated the IRC channel topic in #wikimedia-tech to tell that Bugzilla is under scheduled maintenance and logged the action in #wikimedia-operations so it got added to Wikimedia’s Server admin log. All in all we had only forgotten two minor things: Our Gerrit integration (a bot adding Gerrit notifications about related patches as comments in Bugzilla) bot was not able to write and got a 503 error back – Chad quickly disabled it. And our Nimsoft watchmouse sent an “ALERT! Bugzilla: Service Temporarily Unavailable” message to the Operations mailing list.

Sean Pringle migrated the old database from db9 in Tampa, to a new database on db1001 in Eqiad. After this was done, Daniel Zahn ran checksetup.pl to apply the scheme upgrades needed for 4.4.

After 30 minutes of testing to make sure everything works as expected we deployed two more custom patches: Showing common queries on the frontpage and making saved reports work. While having the downtime I also switched off bugmail to do some mass-changes without spamming everybody: I merged some version numbers in the “MediaWiki” product to have a shorter Version dropdown, removed the wikibugs-l watcher account from some bug reports as it is unneeded (set as a global watcher in Bugzilla anyway, hence a potential issue if a ticket was moved to a restricted product like “Security” still triggering public bugmail).

A few minutes before the end of the announced downtime of three hours, Daniel switched DNS so the new Bugzilla on the new server became available to the public. A few hours later, to work around isses for clients not supporting SNI, Daniel changed the order in which Apache loads virtual hosts. This ensures that older clients like Internet Explorer on Microsoft Windows XP will always get to see Bugzilla instead of other miscellaneous web services sharing the same hardware. I had also overlooked a small UI issue that I fixed two days later.

Now that all is done, the result can now be seen on bugzilla.wikimedia.org. All steps to upgrade Wikimedia Bugzilla from 4.2 to 4.4 were documented on a wiki page. You can find all of our custom modifications here.

Lack of Maintainership & Finding a Project to Contribute to

January 30th, 2014 by aklapper

One of the things I liked about the GNOME Documentation Hackfest (apart from the hospitality of Kat, Dave and the University of East Anglia) was the opportunity of teachers and students popping in and discussing open source project management related aspects with us.

One obvious topic is contributor involvement.
The Number Two question of people interested in contributing to GNOME (right after “How do I get started?”) is “I know programming language XYZ. Which projects would be good?”. Which leads to the question:
What are obstacles for contributors to find projects in language XYZ themselves?

And as volunteer based projects allow project maintainers or translation team leaders to disappear without a warning, new contributors might not realize or know where to escalate in order to become a new maintainer, especially if the single contact point of failure is a private email address of the previous maintainer who will never reply. New contributors do not know how to find out how “maintained” a project is – they would have to find the “log” page of the project on GNOME Git plus understand that translation updates are not a sign of development activity.
How to help contributors avoid writing a patch for an unmaintained dead rotten project where nobody will ever notice and appreciate their contribution?

This problem actually affects a larger group: Translators, documentators and bug reporters all waste time working on projects that will never see a release again. One year ago, one third of the non-archived modules in GNOME Git had not seen any code activity for more than two years. Obviously, these dead projects are not a good idea to contribute to if you have no experience in software project management yet but just want to contribute a small patch that scratches your own itch.

And as we discussed this I pointed to a university paper I wrote a year ago, comparing Apache and GNOME.
Realizing how often I refer to it it’s probably useful to link the PDF file:

Indicators for Missing Maintainership in Collaborative Open Source Projects (PDF)

Very quickly after that discussion, Frédéric created a “GNOME Project Health” webpage based on metrics in that paper.
Frédéric’s page allows to see which listed GNOME maintainers are active, how active the project is (the higher the score, the less activity exists), and in which programming language(s) the project is written. It’s a great start and I owe Frédéric a beer for it.

If you are a GNOME project maintainer you can help improving it:
If your project is mostly written in the programming languages X and Y, add the lines

<programming-language>X</programming-language>
<programming-language>Y</programming-language>

to the .doap file in the top level folder in Git, and check if the maintainers listed in the DOAP file do not collide with the reality out there.

GNOME Documentation Hackfest, Day 0

January 26th, 2014 by aklapper

Reporting live from GNOME Docs Hackfest at Norridge, East Anglia.

Fréd arrived after bypassing some tree falling on his way. But he was very late. Shaun is still in a snowstorm. Ryan has escaped that already. But fearless leader Kat, Dave, Julita, Phil, Michael, and Baptiste made it. Petr plans to arrive in the middle of the night. If his plane does not decide to make even more problems.

Julita plans to refresh the structure of the Evolution user docs to make it more compact plus might take a peek at GNOME Developer Platform Demos.

Phil “arrived on a train, that was pretty good, and I’ve actually resolved a third of the licensing issues of GNOME system monitor.”

Michael and Baptiste visited the Protestant cathedral. Michael worked on system monitor and taking screenshots. Baptiste also kept contact to Fréd so he does not feel too alone and lost. And Sindhu joined remotely.

I went through numerous documentation related bug reports and updated them (plus as a side effect created statistics about all those many unmaintained modules in GNOME Git).
For a short moment I also wondered: Why does GNOME push for using AppData files if we have extensible DOAP files already in each repository? Hmm.

Interested documentation fans in the backyard.

Documentation fans in the backyard of the venue (photo by Michael Hill)

Wikimedia in Google Code-In 2013

January 22nd, 2014 by aklapper

Google Code-In 2013 Logo

Google Code-In (GCI) 2013 is over and the winners have been announced! Congratulations to everybody!

Quim Gil and I organized the participation of Wikimedia in GCI this year. We set up a central wikipage that we pointed students to for recurring general questions. Mostly these were about expectations on communication, how to use IRC, how to set up a development environment and the toolchain (Git, Gerrit, Bugzilla), plus a list of our mentors and their IRC nicknames and timezones (some enthusiastic students welcome being reminded of timezones, plus having patience is one of the good lessons to learn).
We also had a section for mentors explaining how to write good GCI tasks and which sentences and information should be part of every task description.

For the Wikimedia Engineering Community Team, GCI was a helpful lesson to prepare improving our Annoying little bugs landing page for new contributors (still on my TODO list). Students hopefully found interest in contributing to a great FOSS community (I have seen numerous students who continue contributing and are still active after the contest has finished). I hope that Wikimedia will be able to invite the most active students to the Wikimania conference.

We ended up with way more tasks available than expected (and more than 200 successfully finished), had a number of students who really impressed us by code quality (number of patch reviews required) and speed, and Quim managed surprisingly well to convince established developers to become mentors. Also, the nine hours of time difference between Quim and me was a big advantage in order to respond quickly to requests.

All together, GCI was successful and participating in GCI was good decision, contrary to my initial reluctance.
I would like to thank Google and all involved mentors and students for their hard work and for making this possible.

Manually Installing Bugzilla 4.4 on Fedora 20

January 18th, 2014 by aklapper

One rainy winter I tried to manually install Bugzilla 4.4 on a Fedora 20 machine by using Bugzilla’s latest stable upstream code instead of the Bugzilla package provided by Fedora. You, being one of my delighted long-term blog readers, already know that one of my favorite hobbies is to run into issues. Generally. Hence allow me to share them with you here, to some extend.

General hint to the reader: RTFM: installation guide. Also ignore /etc/bugzilla/localconfig as it is only used by the Bugzilla package provided by Fedora.

  • cd /usr/share/
  • Download Bugzilla 4.4 via Bazaar (which will get replaced by Git soon): bzr co bzr://bzr.mozilla.org/bugzilla/4.4 bugzilla44
  • cd /usr/share/bugzilla44/
  • Run checksetup.pl to see that I should install numerous packages for functionality. In my case this meant yum install perl-Template-Toolkit perl-Template-GD perl-GDGraph perl-GDGraph3d perl-GDTextUtil perl-MIME-tools perl-HTML-Scrubber perl-TheSchwartz (you can find a nice list of package names on Fedora here).
  • Create a symlink so your Apache web server will find your Bugzilla: ln -s /usr/share/bugzilla44/ /var/www/html/bugzilla44
  • ./checksetup.pl --check-modules – if all packages are sorted out it should now complain about the database.
  • Start the web server and database services: systemctl start httpd.service and systemctl start mysqld.service
  • Database setup
    • Reset the MariaDB/MySQL password in case you forgot: mysqladmin -u root password
    • mysql -u root -p (then enter the password)
    • mysql$> CREATE DATABASE bugs;
    • mysql$> GRANT ALL PRIVILEGES ON bugs.* TO andre@localhost IDENTIFIED BY ‘password123′;
    • Edit /usr/share/bugzilla44/localconfig and insert the previously defined database information:
      db_host = 'localhost';
      db_user = 'bugs';
      db_user = 'andre';
      db_pass = 'password123';
  • Giving /usr/share/bugzilla44/testserver.pl http://localhost/bugzilla44 a try cannot hurt either to find further problems.

Problems

Now let’s finally start running into problems with Apache and SELinux (manuals FTW?).

  • Problem: CGI content displayed as plain raw text in the browser:
    • Remove the preceding # of the line #AddHandler cgi-script .cgi in /etc/httpd/conf/httpd.conf
  • Problem: 403 Forbidden error
    • Check that $webservergroup in /usr/share/bugzilla44/localconfig is set to apache
    • chown -R 751 /usr/share/bugzilla44
    • chown root:apache -R /usr/share/bugzilla44
    • Check /var/log/httpd/error_log and see the line
    • Options ExecCGI is off in this directory: /var/www/html/bugzilla44/index.cgi. So edit /etc/httpd/conf/httpd.conf and add:
      <Directory "/var/www/html/bugzilla44">
      AddHandler cgi-script .cgi
      Options +ExecCGI +FollowSymLinks
      DirectoryIndex index.cgi
      AllowOverride Limit FileInfo Indexes Options
      Order allow,deny
      Allow from all
      Require all granted
      </Directory>

      (I run Bugzilla on a test machine and don’t need to care about a secure setup, so my settings might not be good settings for you, obviously.)

  • Problem: 500 Internal Server Error
    • Check /var/log/httpd/error_log and see the line /var/www/html/bugzilla44/.htaccess: Options not allowed here
    • Instead of commenting out lines, double-check that $create_htaccess = 0; is set in /usr/share/bugzilla44/localconfig and delete /usr/share/bugzilla44/.htaccess before it complains about every damn single line in there. Run checksetup.pl, as usual.
  • Problem: Try to set up any parameter on the Bugzilla admin page and fail
    • Software error: Error in tempfile() using template data/params.XXXXX: Could not create temp file data/params.abcDE: Permission denied at Bugzilla/Config.pm line 270.
    • Wait, obscure and cryptic permission issues even after running chmod a+rwx /usr/share/bugzilla44/data/? That sounds like the main area of expertise of SELinux! But random stuff I found on the interwebs like setsebool -P httpd_enable_homedirs on and setsebool -P httpd_read_user_content on did not help. echo 0 >/selinux/enforce neither (that command likely changed over the last years, see next sentence).
    • Following a blogpost about Nagios vs SELinux, running setenforce 0 to change SELinux’ mode from “enforcing” to “permissive” (you can check via sestatus) finally makes Bugzilla work as expected. Obviously looking at the SELinux context of a specific file via ls -Z and adjusting it via chcon is less pervasive, but I don’t care much about SELinux.

Bugzilla now works for me.

(General hint for people from the future who found this blogpost after searching for how to fix their Bugzilla problem: If you need Bugzilla support, send an email to Bugzilla support instead of using the comment function on somebody’s blog. Cheers.)

2014: Plans.

January 6th, 2014 by aklapper

Studying bug management

To my disappointment my university seems to have no expertise available to mentor a diploma thesis about best practices and common problems in open source bug management. After ten years of working in this field there are quite some open questions I’d like to see answered and after reading lots of scientific papers and books I yet have to find one covering the many aspects and personas involved, so why not write it?
I plan to do some case study research across FLOSS projects (and I’m thankful to Mr Riehle of the University of Erlangen-Nuernberg who pointed out a good resource explaining how to properly do this).

If you are by any chance a teacher at a German university and could imagine to mentor such a thesis, please feel free to contact me.

Wikimedia Bugzilla

This is worth a separate blog post soon, so for the time being I just point to my task list and status updates for the latest achievements. I also plan to attend FOSDEM which has a dedicated wiki track this year!

GNOME

There is a documentation hackfest at the end of this month and I hope to work on the Evolution user docs which I maintain, followed by attending FOSDEM in Brussels and DevConf in Brno.

Chennai

I plan to spend quite some time in Chennai this year by visiting several times. Drop me a line if you live there and would like to discuss Wikimedia, GNOME, or bug management!

Mozilla Summit 2013

October 8th, 2013 by aklapper

mozsummit2013

I had the pleasure to attend the European edition of Mozilla Summit 2013 last weekend. It also took place in Santa Clara (USA) and Toronto (Canada), hosting nearly 2000 Mozillians in total.

The session which interested me the most was discussing bugzilla.mozilla.org (bmo) and the relation to upstream Bugzilla development (especially getting more great stuff from bmo into upstream so other Bugzilla instances could use it). I try to follow bmo development (glob’s “push day” posts and the planning page are the most useful resources) and especially the recent bmo experiments with product dashboards, user dashboards and user pages, but getting an overview of all plans “in a nutshell” is always helpful, especially as there aren’t many upstream meetings.

FYI, further plans for the bmo instance include

  • Native REST API
  • moving the code repository from bzr to git
  • UI improvements, more AJAX
  • upstreaming the new bmo skin
  • moving flags to its own database table for performance reasons (flags are heavily used for release management and hence frequently added in bmo)
  • Investigating the use of memcached
  • Integration with ReviewBoard to replace Splinter

Having spent a few years with Maemo and MeeGo, I also loved the discussion and analysis of the mobile market and its players (competitors and potential allies of Firefox OS).

All in all the conference was extremely well organized and very welcoming – lots of smiling faces. I enjoyed discussing best bug management practices with other triagers, but also offtopic stuff like middle east politics or the times of surveillance that we’re living in. And my hotel roommate awoke my interest in profiling the JavaScript of my triage helper tools so they now run way faster.

Know more, do more, do better.

I would like to express my gratitude to Mozilla for inviting me to this event.

Shades of Blue

October 2nd, 2013 by aklapper

I’m not entirely sure what’s special about my machine (T61 Thinkpad) that makes it lock up and reboot at least once per day without a warning (but sometimes after showing things in blue), but I’ve decided to blame something down the Xorg/Nouveau stack.
Interestingly, SSH’ing onto the sick machine isn’t much help either – when it freezes, cat /proc/kmsg, tail -f /var/log/Xorg.0.log and /var/log/messages, or gdb attached to /usr/bin/Xorg and gnome-shell don’t react anymore and don’t show any “additional” output either. Maybe it’s time to try Wayland? Can’t get much worse. :P

gnome-shell, now with more blue!