Add database to map cluster-role to current working directory
-------------------------------------------------------------
Key: AMBARI-119
URL: https://issues.apache.org/jira/browse/AMBARI-119
Project: Ambari
Issue Type: New Feature
Components: agent
Affects Versions: 0.1.0
Environment: Python
Reporter: Eric Yang
Assignee: Eric Yang
Fix For: 0.1.0
Proposed directory structure layout:
{noformat}
$prefix/$cluster-$role/stacks
/config
/logs/
/data/disk-*/
/pkgs/hadoop-*.tar.gz
/config/hadoop/core-site.xml
{noformat}
One optimization that Owen proposed is to make the directory structure shorter
for client.
{noformat}
$prefix/$cwd/stacks
/config
/logs
/data/disk-*/
/pkgs/hadoop-*.tar.gz
/config/hadoop/core-site.xml
{noformat}
Action send by controller will contain "current working directory", which agent
will record the cluster and role mapping to current working directory.
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