Provisioning of long running Services via HOD
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Key: HADOOP-6959
URL: https://issues.apache.org/jira/browse/HADOOP-6959
Project: Hadoop Common
Issue Type: New Feature
Environment: Should work on any environment
Reporter: Saikat Kanjilal
Priority: Minor
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
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