Kevin Minder created KNOX-189:
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Summary: Use directory as source for topology information instead
of single file
Key: KNOX-189
URL: https://issues.apache.org/jira/browse/KNOX-189
Project: Apache Knox
Issue Type: Improvement
Components: Server
Affects Versions: 0.1.0
Reporter: Kevin Minder
Fix For: 0.4.0
Currently Knox uses a single file to describe the topology of a Hadoop cluster.
Add features have been added this has led to force fitting topology
configuration into a name/value pair model. In addition some configuration can
be extensive and overly complicates the topology file. The suggestion here is
to support a topology directory that can contain multiple files. The name of
the directory would be used as the cluster name and it must contain a
topology.xml file. All other files in the directory would be referenced either
implicitly or explicitly via the topology.xml file. This will obviously
complicate the book keeping required to determine when a topology needs to be
redeployed. I have used JDBM in the past as a way to store metadata about file
timestamps. This or something similar might work well here also.
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