[HADOOP-6959] Provisioning of long running Services via HOD

• Type: New Feature
• Status: Resolved
• Priority: Minor
• Resolution: Fixed

Environment

Should work on any environment

• Assignee: Unassigned
• Reporter: Saikat Kanjilal
• Created: 20/Sep/10 03:40
• Updated: 31/Jul/14 00:01
• Resolved: 31/Jul/14 00:01

Description

Work on a computation model for services on the grid. The model would include:
Various tools for defining clients and servers of the service, and at the least a C++ and Java instantiation of the abstractions
Logical definitions of how to partition work onto a set of servers, i.e. a generalized shard implementation
A few useful abstractions like locks (exclusive and RW, fairness), leader election, transactions,
Various communication models for groups of servers belonging to a service, such as broadcast, unicast, etc.
Tools for assuring QoS, reliability, managing pools of servers for a service with spares, etc.
Integration with HDFS for persistence, as well as access to local filesystems
Integration with ZooKeeper so that applications can use the namespace

Issue Links

• Is contained by: YARN-896 Roll up for long-lived services in YARN