Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: YTrace: End-to-end Performance Diagnosis in Large Cloud and Content
  Providers   Content providers build serving stacks to deliver content to users. An
important goal of a content provider is to ensure good user experience, since
user experience has an impact on revenue. In this paper, we describe a system
at Yahoo called YTrace that diagnoses bad user experience in near real time. We
present the different components of YTrace for end-to-end multi-layer diagnosis
(instrumentation, methods and backend system), and the system architecture for
delivering diagnosis in near real time across all user sessions at Yahoo.
YTrace diagnoses problems across service and network layers in the end-to-end
path spanning user host, Internet, CDN and the datacenters, and has three
diagnosis goals: detection, localization and root cause analysis (including
cascading problems) of performance problems in user sessions with the cloud.
The key component of the methods in YTrace is capturing and discovering
causality, which we design based on a mix of instrumentation API, domain
knowledge and blackbox methods. We show three case studies from production that
span a large-scale distributed storage system, a datacenter-wide network, and
an end-to-end video serving stack at Yahoo. We end by listing a number of open
directions for performance diagnosis in cloud and content providers.

25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat