~/talks

Florian Haas

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Quit Simplifying!PyCon Italia 20242024-05-22
Argues that software complexity is inevitable and measurable via the configuration complexity clock (noon → config → rules → DSL → regenerate), with concrete…
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Creativity: How we lost it, why that’s bad, and how we get it backPyCon Italia 20232023-05-25
Creativity is defined as original ideas that have value and the talk claims schools train rule-following so managers favor rulebooks (OKR, KPIs, Scrum) over…
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Add depth! Stereoscopic imagery for everyonelinux.conf.au 20222022-01-14
Explains making real stereograms with ordinary gear: two handheld photos by shifting weight (roughly shoulder-width baseline), or 3D video from one moving…
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I Don’t Think This Means What You Think It Means: Red Herrings in OpenStackOpenInfra Summit 20202020-10-19
Three concrete OpenStack gotchas and their fixes: Neutron HA router VRIDs are 8‑bit so VRID is 8‑bit (max 255 HA routers) — hit that hard limit and must spread…
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What I now know about HAproxied Django DB connections, and wish I'd known soonerPyConline AU 20202020-09-04
If Django talks to a Galera MySQL/MariaDB cluster through HAProxy the default timeout client = 50s often causes MySQL error 2013 “Lost connection to MySQL…
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Geographical Redundancy with rbd-mirror: Best...Cephalocon Barcelona 20192019-05-19
rbd-mirror (introduced in Jewel) replicates RBD by consuming a client-side rbd journal and replaying it to a remote image; it supports one-way and two-way…
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Learn Ceph — For Fun, For Real, For Free!Cephalocon Barcelona 20192019-05-19
City Cloud Academy offers a self-paced Ceph course (CC213) with fully interactive cloud labs that let learners build a Ceph cluster with Ceph Ansible, practice…
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Fragile developmentFrOSCon 20162016-08-20
Claims Scrum is effectively a rigid cult: rules are immutable, it requires team stability that nearly never exists in software, and its daily 15‑minute…
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Florian Haas - Ignite OSCON 2014Ignite OSCON 20142014-07-20
Voice production mirrors brass instruments: vibration in the vocal folds plus body resonance. Claim: saliva is the only internal lubricant, so drink water…
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(Tutorial) OpenStack Tour de ForceLinuxCon + CloudOpen Europe 20132013-10-21
Call us crazy, but here is where we stand up an OpenStack cloud, from scratch, in two hours. First presented at OSCON 2013 and running full throttle through…
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