Mozilla meetup in Hong Kong

In my trip to/from Cambodia, I specifically set aside some time to visit Hong Kong. (As I write, I’m watching the brilliant haze of clouds over Deep Water Bay, and am on my 3rd coffee before heading out to explore the city!).

On Thursday 26rd Jan 2012, in Hong Kong , I’ll meet Haggen and some community members here in Hong Kong. While it is really close to Chinese New Year, if you are in Hong Kong, please do come join us, say hi, learn a little about how Release Engineering at Mozilla works, and get to meet some other Mozilla community members. Even in this day and age of hi-tech, its still great to say “hello” in person.

Haggen has setup this facebook page to track logistics for the event. HKCommons has donated use of their venue at HKCommons, 9/F, 633 King’s Road, Quarry Bay, Hong Kong. They’ve got plenty of space, and enough internet connectivity for us all. If you have questions about the event, or the location, you can always email Haggen or myself directly.

Hope to see you soon!

[UPDATED 18jan2012 to include address of venue.]

Khmer Firefox on Aurora; meetup in Cambodia

We recently added Khmer localized builds of Firefox to Aurora. (At the same time, we also added ach, ff, lij, wo locales, but that is a story for another blog).

If you can read/write Khmer, please download the Khmer version of Firefox’s Aurora build from here, use it as your daily browser, and file bugs for anything you see that you think needs fixing. All bugs welcome! As bugs are fixed, new Aurora nightly releases will be published, and you’ll automatically update to the newest Aurora build with the latest fixes and latest localization changes.

Its important to keep in mind that this is an Aurora build, not a Beta or Release build. This means there are bugs – some strings are still being localized; some code bugs are still being fixed, etc, etc. There’s still more work to be done but getting onto Aurora is a significant milestone on the way to having Khmer included in the official Firefox release.

To celebrate this big milestone, at 2pm, Monday 23rd Jan 2012, I’ll meet Vannak and some of the Khmer localizers who helped make all this happen, as well as with people from other interesting software projects in Cambodia, so this is already looking to be an exciting event. We’ll be meeting at East-West Management Institute, House #43, Street 208, Phnom Penh, Cambodia. Events formally go from 2pm-5pm Monday 23rd January, 2012; at 7pm, we’ll head over to Romdeng, House# 74, Street 174, Phnom Penh for dinner+drinks+chat.

Its been 5 years since my last visit to Cambodia, but I’m eager to be coming back to celebrate this big milestone, and to say hello to some new (and some familiar) faces. If you are near Phnom Penh, Cambodia, on Mon 23rd, please come by, say hi, attend some of the sessions and then join the celebrations. It would be great to meet up in person, talk about Mozilla, and help make plans for improving Khmer Firefox until it is ready to be on Beta and then on to Release.

If you have any questions, please do email Vannak, Mark West or myself.
[UPDATED 19jan2012 with location addresses and exact times]

Infrastructure load for April – December 2011

Note: This is the first “infrastructure load” report I’ve done since we switched to the new rapid release model. Its worth noting that because of the rapid release model, we’ve jumped to 30+ active project branches. Plotting all these branches would make the charts too noisy, and hard to interpret. Therefore, while I still look at the metrics for all branches, I now only chart the busiest or the most strategically important branches.

Having said all that, now lets get to the interesting stuff!

  • #checkins-per-month: We finally broke the 3,000 checkins-per-month barrier. August set a new record with 3,089 checkins. Then November set a new record with 3,209 checkins, and finally December set another new record with 3,262 checkins!
  • #checkins-per-day: We set a new record of 169 checkins-per-day on 06-nov-2011, only to then match or exceed that new record 4 times in December (184 on 08-dec, 169 on 15-dec, 171 on 19-dec, 184 on 21-dec).
  • I find these records more impressive because they were set in November and December – when we expected to see *low* checkin volumes. Both months have major vacations in them, so we historically see checkin volume decrease as people take vacations. Further, both months had multiple prolonged tree closures, caused by various colo outages, db server outages, etc. (The trees were able to remain open during the email outage because of the proactive work by RelEng and WebDev to refactor earlier this year! Topic for another blog post.) Between the vacations, and the outages, we expected to see significantly decreased checkins in both months, so setting new records like this was unexpected. My current hypothesis is that while the outages caused a backlog of pending fixes, we were able to quickly handle the load spikes when infrastructure came back online, and developers all resumed work… until the next outage. This “full-go, full-stop, full-go” oscillation still managed to set a new record. With some of these issues now resolved, and with developers coming back from vacations, I’m eager to see what numbers we are capable of handling in January.

mozilla-inbound, fx-team:
Its very cool to see how developers have taken to using mozilla-inbound (and more recently fx-team) as integration branches, instead of having everyone landing directly into mozilla-central.

  • In the chart above, note that the number of mozilla-central checkins has decreased significantly, as number of checkins on mozilla-inbound increased.
  • Another interesting effect of this was while unwinding backlog of pending checkins after the outages. In the past whenever we had to unwind a large backlog of pending checkins, we’d keep the trees closed while developers did metered checkins to work through the backlog. However, after each of these recent outages, developer usage of mozilla-inbound and fx-team as integration branches meant that backlogs were cleared out more quickly, and with less manual metering of checkins on mozilla-central.

mozilla-aurora, mozilla-beta:
I note that ~2% of our monthly checkins land into mozilla-aurora, and in turn, about half of those ~1% then also land onto mozilla-beta. Part of me feels this is a healthy low number of fixes landing on aurora, and a healthy even lower number of fixes landing on beta. And this was part of the plan for the rapid release model. At the same time, part of me also feels like too many fixes are still needed on mozilla-beta, and I fear that this is a sign too many bugs are making it through mozilla-central / mozilla-aurora to mozilla-beta before being detected. In which case, what could we do differently in order to change this? Honestly, I cant tell for certain, and I’d be curious what others think. (Oh, and for the record, I’m always glad whenever we catch a problem *before* we ship a release; it avoids us having to do a chemspill release and its better for Firefox users too!)

misc other details:
Pushes per day

Pushes by hour of day