Using this backpressure mechanism, we can stop retry storms much faster than we could in the past. We automatically adju

In our first experiment, we detected a race condition in both Android and iOS devices for a low priority request that caused sporadic playback errors. Since we practice continuous experimentation, once the initial experiments were run and the bugs were fixed, we scheduled them to run on a periodic basis. This allows us to detect regressions early and keep users streaming.

The Center for the Study of Women in Television and Film says that 19% of Hollywood’s screenwriters (in the top 100 grossing films) in 2019. And, women don’t get to talk much in Hollywood productions. Just 34% of named female characters from the same list and year…actually speak words.

According to new research, more than 10 percent of the directors on last year’s top films were women, which was more than twice as many as in 2018 and the highest number in over a decade. “More Women Than Ever Are Directing Major Films, Study Says” by Cara Buckley (New York Times)

This platform allows us to stage an A/B experiment that will allocate a small number of production users to either a control or treatment group for 45 minutes while throttling a range of priorities for the treatment group. This lets us capture a variety of live use cases and measure the impact to their playback experience. ChAP analyzes the members’ KPIs per device to determine if there is a deviation between the control and the treatment groups.

In 2019, before progressive load shedding was in place, the Netflix streaming services experienced an outage that resulted in a sizable percentage of members who were not able to play for a period of time. In 2020, days after the implementation was deployed, the team started seeing the benefit of the solution. Netflix experienced a similar issue with the same potential impact as the outage seen in 2019. Unlike then, Zuul’s progressive load shedding kicked in and started shedding traffic until the service was in a healthy state without impacting members’ ability to play at all.

One of the goals here is to reduce members’ pain by shedding requests that are not expected to affect the user’s streaming experience. However, Netflix changes quickly and requests that were thought to be noncritical can unexpectedly become critical. In addition, Netflix has a wide variety of client devices, client versions, and ways to interact with the system. To make sure we weren’t causing members pain when throttling NON_CRITICAL requests in any of these scenarios, we leveraged our infrastructure experimentation platform ChAP.

These title sequences feel like they feature a lot of women’s names. These are not just the actresses but the producer, director, casting, scriptwriters and so on. Women directed only 10 percent of major Hollywood movies in 2019…and that was an increase so significant that it warranted news coverage:

http://stream88.colomboserboli.com/eca/videos-kahramanmarasspor-v-amed-v-tr-tr-1vcj-10.php

http://vert.actiup.com/jls/Video-darica-genclerbirliği-v-buyukcekmece-tepecikspor-v-tr-tr-1osz-29.php

http://vert.actiup.com/jls/Video-darica-genclerbirliği-v-buyukcekmece-tepecikspor-v-tr-tr-1emo-17.php

http://stream88.colomboserboli.com/eca/video-batman-petrolspor-v-osmaniyespor-v-tr-tr-1jso-10.php

http://stream88.colomboserboli.com/eca/Video-batman-petrolspor-v-osmaniyespor-v-tr-tr-1tjf-19.php

http://agro.ruicasa.com/vtm/videos-kahramanmarasspor-v-amed-v-tr-tr-1ebj-8.php

http://vert.actiup.com/jls/videos-kahramanmarasspor-v-amed-v-tr-tr-1auw-15.php

http://vert.actiup.com/jls/v-ideos-kahramanmarasspor-v-amed-v-tr-tr-1pvl-6.php

http://agro.ruicasa.com/vtm/Video-kahramanmarasspor-v-amed-v-tr-tr-1dud-4.php

http://stream88.colomboserboli.com/eca/videos-batman-petrolspor-v-osmaniyespor-v-tr-tr-1irr-16.php

http://stream88.colomboserboli.com/eca/Video-batman-petrolspor-v-osmaniyespor-v-tr-tr-1nyi-8.php

http://agro.ruicasa.com/vtm/Video-kahramanmarasspor-v-amed-v-tr-tr-1ktr-3.php

http://vert.actiup.com/jls/videos-kahramanmarasspor-v-amed-v-tr-tr-1hmd-3.php

http://vert.actiup.com/jls/v-ideos-kahramanmarasspor-v-amed-v-tr-tr-1kpt-22.php

http://agro.ruicasa.com/vtm/v-ideos-kahramanmarasspor-v-amed-v-tr-tr-1oyr-20.php

http://stream88.colomboserboli.com/eca/video-utas-usakspor-v-niğde-anadolu-v-tr-tr-1qek-4.php

http://stream88.colomboserboli.com/eca/Video-utas-usakspor-v-niğde-anadolu-v-tr-tr-1qhh-26.php

http://vert.actiup.com/jls/video-batman-petrolspor-v-osmaniyespor-v-tr-tr-1fob-9.php

http://agro.ruicasa.com/vtm/v-ideos-batman-petrolspor-v-osmaniyespor-v-tr-tr-1jif-27.php

http://stream88.colomboserboli.com/eca/Video-utas-usakspor-v-niğde-anadolu-v-tr-tr-1owp-2.php

pply successfully to agency jobs, you’ll need to submit what’s called a “government resume.” This means it must be multiple pages, should include every job you’ve ever had, every responsibility you’ve ever had, and address all of the skills asked about in the job posting. So if the job posting says “Candidate must have experience in widgets” you *must* say “I have been interested in widgets for 3 years” (or whatever your experience with widgets is).

It is that time of the year. I am deep in my Hallmark Christmas movie grind. Between judging the banality of cults of femininity and laughing at Kellie Pickler, I want to make the case for Hallmark movies as feminist* fare.

Hallmark movies are not feminist, except in that vague nonsensical way in which anything with a woman in it is somehow feminist. The scripts trade in every trope of unexamined whiteness, class warfare, gender conformity and patriarchal family norms. I watch them because there is no subtext and no surprises. There are only three things that turn off my critical survival lens and Hallmark movies are one of the three. I suspect that is because I do not need a single new skill to anticipate them. That’s because:

The graph below shows a stable streaming availability metric stream per second (SPS) while Zuul is performing progressive load shedding based on request priority during the incident. The different colors in the graph represent requests with different priority being throttled.

When you watch as many Hallmark movies as I have watched, you start to notice those title sequences. That is where my fragile argument for a feminist reading of Hallmark movies begin.

To validate our request taxonomy assumptions on whether a specific request fell into the NON_CRITICAL, DEGRADED, or CRITICAL bucket, we needed a way to test the user’s experience when that request was shed. To accomplish this, we leveraged our internal failure injection tool (FIT) and created a failure injection point in Zuul that allowed us to shed any request based on a supplied priority. This enabled us to manually simulate a load shedded experience by blocking ranges of priorities for a specific device or member, giving us an idea of which requests could be safely shed without impacting the user.

For future work, the team is looking into expanding the use of request priority for other use cases like better retry policies between devices and back-ends, dynamically changing load shedding thresholds, tuning the request priorities using Chaos Testing as a guiding principle, and other areas that will make Netflix even more resilient.

For future work, the team is looking into expanding the use of request priority for other use cases like better retry policies between devices and back-ends, dynamically changing load shedding thresholds, tuning the request priorities using Chaos Testing as a guiding principle, and other areas that will make Netflix even more resilient.