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Netflix
Fenzo
Java2017–2018
Netflix / Fenzo · Archived

Fenzo

Extensible Scheduler for Mesos Frameworks

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2Distinct people
2Mentions
0Explicit recommenders
698GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

Extensible Scheduler for Mesos Frameworks

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 5:04:57 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by month2 dated mentions

Observed mentions: 2017-04-21 19:34:25 UTC to 2018-04-17 17:10:37 UTC.

012017-04-01 00:00:00 UTC to 2017-05-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsApr 20172017-05-01 00:00:00 UTC to 2017-06-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2017-06-01 00:00:00 UTC to 2017-07-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2017-07-01 00:00:00 UTC to 2017-08-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2017-08-01 00:00:00 UTC to 2017-09-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2017-09-01 00:00:00 UTC to 2017-10-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2017-10-01 00:00:00 UTC to 2017-11-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 commentsOct 20172017-11-01 00:00:00 UTC to 2017-12-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2017-12-01 00:00:00 UTC to 2018-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2018-01-01 00:00:00 UTC to 2018-02-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2018-02-01 00:00:00 UTC to 2018-03-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2018-03-01 00:00:00 UTC to 2018-04-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2018-04-01 00:00:00 UTC to 2018-05-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsApr 2018

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
Apr 20172017-04-01 00:00:00 UTC2017-05-01 00:00:00 UTC101
May 20172017-05-01 00:00:00 UTC2017-06-01 00:00:00 UTC000
Jun 20172017-06-01 00:00:00 UTC2017-07-01 00:00:00 UTC000
Jul 20172017-07-01 00:00:00 UTC2017-08-01 00:00:00 UTC000
Aug 20172017-08-01 00:00:00 UTC2017-09-01 00:00:00 UTC000
Sep 20172017-09-01 00:00:00 UTC2017-10-01 00:00:00 UTC000
Oct 20172017-10-01 00:00:00 UTC2017-11-01 00:00:00 UTC000
Nov 20172017-11-01 00:00:00 UTC2017-12-01 00:00:00 UTC000
Dec 20172017-12-01 00:00:00 UTC2018-01-01 00:00:00 UTC000
Jan 20182018-01-01 00:00:00 UTC2018-02-01 00:00:00 UTC000
Feb 20182018-02-01 00:00:00 UTC2018-03-01 00:00:00 UTC000
Mar 20182018-03-01 00:00:00 UTC2018-04-01 00:00:00 UTC000
Apr 20182018-04-01 00:00:00 UTC2018-05-01 00:00:00 UTC101

What Hacker News says

2 sources
lowbloodsugar·Apr 21, 2017
Fenzo is a java library for deciding how to allocate tasks when offered resources. It makes implementing Mesos frameworks easier because it turns out the question: "Given an offer of X resources, and a list of tasks that need running, what is the best use of the offered resources?" is actually quite hard. (3D knapsack hard). "Apache Mesos frameworks match and assign resources to pending tasks. Fenzo presents a plugin-based, Java library that facilitates scheduling resources to tasks by using a variety of possible scheduling objectives, such as bin packing, balancing across resource abstractions (such as AWS availability zones or data center racks), resource affinity, and task locality." [1] Marathon is a Mesos framework for scheduling long running applications (like rest services) and keeping them running. If what you want to do is serve
Read the rest
http traffic then Marathon does the job (although the stand-alone UI is now deprecated and will only bug-fixed for "the next few months", so you'd better like the full DC/OS offering). Titus appears to combine the functionality of Marathon, plus the ability to run batch jobs. I wondered if Titus was a fork of Marathon with new bits, but that doesn't appear to be the case. I believe it deals with one glaring flaw in Mesos, which is that frameworks all independently calculate the best use of the offered resources. When compute becomes available, Mesos makes offers to frameworks, with some basic logic such as making offers to frameworks currently consuming the least. But that means that there is no way to customize the resource allocation across different use cases (e.g. between REST APIs, one-off tasks and Spark clusters). It'd be great if Fenzo did "sit on top of Marathon", so I could customize how it schedules based on the "bigger picture". Titus avoids the problem because it schedules everything. [1] https://github.com/Netflix/Fenzo
In The Evolution of Container Usage at Netflix

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