Gour Saha created SLIDER-875:
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Summary: Ability to create an Uber application package with
capability to deploy and manage as a single business app
Key: SLIDER-875
URL: https://issues.apache.org/jira/browse/SLIDER-875
Project: Slider
Issue Type: New Feature
Components: agent, app-package, appmaster, client, core
Affects Versions: Slider 0.70
Reporter: Gour Saha
A business application as we typically refer to, is one that provides value to
an end customer. Few examples will be, a CRM application, on online advertising
application, and a trucking application (to monitor driving habits of truck
drivers).
An end user does not understand (or care about) the numerous application
components like HBase, Storm, Spark, Tomcat, Memcached, or Nodejs that are
required to build such a business application.
Several such business applications are hosted by cloud vendors like AWS, GCE,
Azure, and others. From a cluster management point of view, the IT
administrator would benefit from an Uber control of the business application as
a whole. The business application owner understands the different components
(like Tomcat, Memcached, HBase, etc.) of her/his Uber application. As much as
they need fine-grain control of each of these individual applications (which is
supported today), they would also benefit from a management control for the
Uber app. With Docker becoming popular every day, this will provide a platform
to the application owners to define a business application as a conglomerate of
Docker containers.
Slider currently is viewed (and used) to package individual applications like
HBase, Storm, Kafka, Memcached, and Tomcat. Slider should be able to expose the
concept of an Uber application package definition. This Uber definition will be
composed of config and resource specifications of the individual application
components. Additionally, it will have definitions for Uber management and
control, like -
# Stop, start and flex of the Uber app
# Dependency specification between the individual applications such that flex
of certain components of an application can automatically trigger proportional
flex of components in another application
# Cruise control of the Uber app, on top of what SLIDER-868 will provide for an
individual app. Ability to define a skyline for the Uber app, over time and
other dimensions.
# Resource requirements and planning for the Uber app as a whole. Most of the
times, an Uber app is functional only when every individual application is
deployed and available. Tomcat running without Memcached and HBase is a useless
business application. Slider should be able to do resource calculation and
negotiation for the Uber app as a whole and work with YARN to get at least a
minimal working Uber app running or nothing.
# Ability to define and use multiple YARN labels for the Uber application (in
addition to the fine grained label definitions for individual components of a
single app)
I am sure, there are several other benefits which are not identified yet, but
this is a start.
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