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KITCHEN SOAP
An Open Letter To Monitoring/Metrics/Alerting Companies. 01. May. I’d like to open up a dialogue with companies who are selling X-As-A-Service products that are focused on assisting operations and development teams in tracking the health and performance of theirsoftware systems.
KITCHEN SOAP
My name is John Allspaw. I am currently a co-founder of Adaptive Capacity Labs, LLC. Previously, I was Chief Technology Officer at Etsy. I have a Master’s degree in Human Factors and Systems Safety at Lund University. I’ve worked at Flickr, Friendster, InfoWorld, Salon, Genentech, Volpe National Transportation Center, and a bunch ofother places as a
KITCHEN SOAP
At the Velocity Conference last year, I was talking to Mike Loukides from O’Reilly about the topics being presented and how it was so great to see such successful veterans of the field come out from behind the curtain and share their experiences.KITCHEN SOAP
01. May. /. Cognitive Systems Engineering, Tools, WebOps. /. 17 Comments. I’d like to open up a dialogue with companies who are selling X-As-A-Service products that are focused on assisting operations and development teams in tracking the health and performance of their software systems. Note: It’s likely my suggestions below are understoodKITCHEN SOAP
Below is a piece written by Edward Wenk, Jr., which originally appeared in PRlSM, the magazine for the American Society for Engineering Education (Publication Volume 6. No. 4. December 1996.) While I think that there’s much more than what Wenk points to as ‘social science’ – IKITCHEN SOAP
Below is a piece written by Edward Wenk, Jr., which originally appeared in PRlSM, the magazine for the American Society for Engineering Education (Publication Volume 6. No. 4. December 1996.) While I think that there’s much more than what Wenk points to as ‘social science’ – IKITCHEN SOAP
From Perspectives On Cognitive Task Analysis: Historical Origins and Modern Communities of Practice (emphasis mine) The Aretha Franklin Principle Do not devalue the human to justify the machine. Do not criticize the machine to rationalize the human. Advocate the human–machine system to amplify both. The Sacagawea Principle Human-centered computational tools need to support activeKITCHEN SOAP
Dialogue is about exploring the nature of choice. To choose is to select among alternatives. Dialogue is about evoking insight, which is a way of reordering our knowledge— particularly the taken-for-granted assumptions that people bring to the table. I’m not all the way through the book, but it’s quite good thus far.Abstract As A Verb.
KITCHEN SOAP
(this is also posted on O’Reilly’s Radar blog. Much thanks to Daniel Schauenberg, Morgan Evans, and Steven Shorrock for feedback on this) Before I begin this post, let me say that this is intended to be a critique of the Five Whys method, not a criticism of the people who are in favor of usingKITCHEN SOAP
UPDATE: I’ve added a short section on the topic of sponsorship. I think that there’s a lot of institutional knowledge in our field, especially about what makes for a productive engineer. But while there are a good deal of books in the management field about “expert” roles and responsibilities of non-technical individual contributors, Idon’t
KITCHEN SOAP
An Open Letter To Monitoring/Metrics/Alerting Companies. 01. May. I’d like to open up a dialogue with companies who are selling X-As-A-Service products that are focused on assisting operations and development teams in tracking the health and performance of theirsoftware systems.
KITCHEN SOAP
My name is John Allspaw. I am currently a co-founder of Adaptive Capacity Labs, LLC. Previously, I was Chief Technology Officer at Etsy. I have a Master’s degree in Human Factors and Systems Safety at Lund University. I’ve worked at Flickr, Friendster, InfoWorld, Salon, Genentech, Volpe National Transportation Center, and a bunch ofother places as a
KITCHEN SOAP
At the Velocity Conference last year, I was talking to Mike Loukides from O’Reilly about the topics being presented and how it was so great to see such successful veterans of the field come out from behind the curtain and share their experiences.KITCHEN SOAP
01. May. /. Cognitive Systems Engineering, Tools, WebOps. /. 17 Comments. I’d like to open up a dialogue with companies who are selling X-As-A-Service products that are focused on assisting operations and development teams in tracking the health and performance of their software systems. Note: It’s likely my suggestions below are understoodKITCHEN SOAP
Below is a piece written by Edward Wenk, Jr., which originally appeared in PRlSM, the magazine for the American Society for Engineering Education (Publication Volume 6. No. 4. December 1996.) While I think that there’s much more than what Wenk points to as ‘social science’ – IKITCHEN SOAP
Below is a piece written by Edward Wenk, Jr., which originally appeared in PRlSM, the magazine for the American Society for Engineering Education (Publication Volume 6. No. 4. December 1996.) While I think that there’s much more than what Wenk points to as ‘social science’ – IKITCHEN SOAP
From Perspectives On Cognitive Task Analysis: Historical Origins and Modern Communities of Practice (emphasis mine) The Aretha Franklin Principle Do not devalue the human to justify the machine. Do not criticize the machine to rationalize the human. Advocate the human–machine system to amplify both. The Sacagawea Principle Human-centered computational tools need to support activeKITCHEN SOAP
Dialogue is about exploring the nature of choice. To choose is to select among alternatives. Dialogue is about evoking insight, which is a way of reordering our knowledge— particularly the taken-for-granted assumptions that people bring to the table. I’m not all the way through the book, but it’s quite good thus far.Abstract As A Verb.
KITCHEN SOAP
(this is also posted on O’Reilly’s Radar blog. Much thanks to Daniel Schauenberg, Morgan Evans, and Steven Shorrock for feedback on this) Before I begin this post, let me say that this is intended to be a critique of the Five Whys method, not a criticism of the people who are in favor of usingKITCHEN SOAP
UPDATE: I’ve added a short section on the topic of sponsorship. I think that there’s a lot of institutional knowledge in our field, especially about what makes for a productive engineer. But while there are a good deal of books in the management field about “expert” roles and responsibilities of non-technical individual contributors, Idon’t
KITCHEN SOAP
Below is a piece written by Edward Wenk, Jr., which originally appeared in PRlSM, the magazine for the American Society for Engineering Education (Publication Volume 6. No. 4. December 1996.) While I think that there’s much more than what Wenk points to as ‘social science’ – IKITCHEN SOAP
Like all sane web organizations, we gather metrics about our infrastructure and applications. As many metrics as we can, as often as we can. These metrics, given the right context, helps us figure out all sorts of things about our application, infrastructure, processes,and business.
KITCHEN SOAP
Something that has struck me funny recently surrounds the traditional notion of availability of web applications. With respect to its relationship to revenue, to infrastructure and application behavior, and fault protection and tolerance, I’m thinking it may be time to get a broader upgrade adjustment to the industry’s perception on thetopic.
KITCHEN SOAP
16. Dec. So there’s lots of excitement around Varnish, which is a caching proxy that is built to be first and foremost a reverse-proxy, as opposed to squid, which does both forward and reverse. Acceleration (reverse-proxying) is obviously important to us at Flickr, as we usesquid extensively.
KITCHEN SOAP
The other day I posted about the intersections of Systems Safety and web operations and engineering. One of the largest proponents of bringing a systems thinking perspective to safety (specifically ‘software safety’) is Dr. Nancy Leveson, who has been in that field (really a multidisciplinary field) for at least a couple ofdecades.
KITCHEN SOAP
(this is also posted on O’Reilly’s Radar blog. Much thanks to Daniel Schauenberg, Morgan Evans, and Steven Shorrock for feedback on this) Before I begin this post, let me say that this is intended to be a critique of the Five Whys method, not a criticism of the people who are in favor of usingKITCHEN SOAP
18) Failure free operations require experience with failure. Fear is a strong emotion. I believe it can be used as a strong motivator for ensuring safety in the face of constant change, instead of a reason to push back on the very idea of change. Embrace fear of outages and degradation. Use it to guide your architecture, your code, yourKITCHEN SOAP
Ben Rockwood said something last December about the re-emergence of the Systems Engineer and I agree with him, 100%. To add to that, I’d like to quote the excellent NASA Systems Engineering handbook’s introduction. The emphasis is mine: Systems engineering is a methodical, disciplined approach for the design, realization, technical management, operations, and retirementKITCHEN SOAP
Management becomes less aware and informed on how work is being performed day to day, and engineers become less educated on lurking or latent conditions for failure due to silence mentioned in #4, above. Errors more likely, latent conditions can’t be identified due to #5, above. Repeat from step 1. We need to avoid this cycle.KITCHEN SOAP
The cognitive cost of an engineer to attend to an alert (a fundamentally interrupting event by design) is akin to the cost of a software developer losing their “flow”; context switching is expensive. Expensive from a financial standpoint, a productivity perspective, and I’ll argue a career development view. Here are some(likely
KITCHEN SOAPTHOUGHTS ON SYSTEMS SAFETY, SOFTWARE OPERATIONS, AND SOCIOTECHNICAL SYSTEMS.KITCHEN SOAP
* About Me
* Talks
* Books
* Complex Systems
* Human Factors
* WebOps
-- Menu --About Me Talks Books Complex Systems Human Factors WebOpsMY NEXT STEP
* 13. Nov
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* Uncategorized
* /
* 2 Comments
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After leaving my CTO role at Etsy this past May, I took the summer off to spend time with my family, enjoy New York summertime, and give my mind time to refresh and recharge. I thought long and hard about what I wanted to do next; the last time I took a new job was...Continue reading...
INVITED ARTICLE IN IEEE SOFTWARE – TECHNICAL DEBT: CHALLENGES ANDPERSPECTIVES
* 26. Sep
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* Cognitive Systems Engineering,
Complex Systems
, Uncategorized
* /
* 2 Comments
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Earlier this year, I was asked to contribute to an article in IEEE Software, entitled “Technical Debt: Challenges and Perspectives.” I can’t post the entire article here, but I can post the accepted text of my part of the article here. Misusing the Metaphor John Allspaw All technical disciplines (not just software development) require different...Continue reading...
MULTIPLE PERSPECTIVES ON TECHNICAL PROBLEMS AND SOLUTIONS* 12. Aug
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* Architecture ,
Complex Systems
, Culture
, Etsy
* /
* 19 Comments
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Over the years, a number of people have asked about the details surrounding Etsy’s architecture review process. In this post, I’d like to focus on the architecture review working group’s role in facilitating dialogue about technology decision-making. Part of this is really just about working groups in general (pros, cons, formats, etc.) and another part...Continue reading...
BOOK SUGGESTION: “DIALOGUE: THE ART OF THINKING TOGETHER”* 06. Mar
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* Culture
* /
* 1 Comment
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I’m reading a book that was suggested to me by the Director of the Office of Learning in the US Forest Service as “required reading” for any modern organization that intends to learn – Dialogue: The Art Of Thinking Together As a teaser, William Isaacs makes a very good case for considering discussion to be seen as...Continue reading...
ABSTRACT AS A VERB
* 28. Apr
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* Uncategorized
* /
* 1 Comment
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The New Stack has an interview with me on various topics here. I think the following part of the interview gets at what I think is an under-investigated bit of language and meaning: TNS: At the same time, I imagine that you’ve abstracted a lot of the supporting infrastructure away from the engineer. They don’t have...Continue reading...
ARCHITECTURAL FOLK MODELS* 12. Feb
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* Architecture ,
Culture
* /
* 3 Comments
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I’m going to post the contents of a gist I wrote (2 years ago?!), because Theo is right, some gists are better as posts. The context for this was a debate on Twitter (which, as always, is about as elegant and pleasing to read as a turtle trying to breakdance). Summing up contextual influence on systems architecture...Continue reading...
REFLECTIONS ON THE 6TH RESILIENCE ENGINEERING SYMPOSIUM* 26. Jun
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* Cognitive Systems Engineering,
Complex Systems
, Resilience
, Systems Safety
, Talks
* /
* 7 Comments
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I just spent the last week in Lisbon, Portugal at the Resilience Engineering Symposium. Zoran Perkov and I were invited to speak on the topic of software operations and resilience in the financial trading and Internet services worlds, to an audience of practitioners and researchers from all around the globe, in a myriad of industries....Continue reading...
SOME PRINCIPLES OF HUMAN-CENTERED COMPUTING* 16. Jun
* /
* Cognitive Systems Engineering,
Complex Systems
* /
* 2 Comments
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From Perspectives On Cognitive Task Analysis: Historical Origins and Modern Communities of Practice (emphasis mine) The Aretha Franklin Principle Do not devalue the human to justify the machine. Do not criticize the machine to rationalize the human. Advocate the human–machine system to amplify both. The Sacagawea Principle Human-centered computational tools need to support active organizationof...
Continue reading...
AN OPEN LETTER TO MONITORING/METRICS/ALERTING COMPANIES* 01. May
* /
* Cognitive Systems Engineering,
Tools , WebOps
* /
* 17 Comments
__
I’d like to open up a dialogue with companies who are selling X-As-A-Service products that are focused on assisting operations and development teams in tracking the health and performance of their software systems. Note: It’s likely my suggestions below are understood and embraced by many companies already. I know a number ofthem who are...
Continue reading...
STRESS, STRAIN, AND REMINDERS* 02. Feb
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* Complex Systems
, Etsy
* /
* 4 Comments
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This is a photo of the backside of the T-shirt for the operations engineering team at Etsy: This diagram might not come as a surprise to those who know that I come from a mechanical engineering background. But I also wanted to have this on the T-shirt as a reminder (maybe just to myself, but...Continue reading...
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