[AMBARI-14435] Parameterize distro-specific stack information for ZOOKEEPER

• Type: Technical task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.2.0, 2.2.1
• Fix Version/s: 2.4.0
• Component/s: ambari-server
• Assignee: Juanjo Marron
• Reporter: Juanjo Marron
• Created: 18/Dec/15 17:20
• Updated: 23/Mar/16 17:39
• Resolved: 23/Mar/16 06:39

Description

Apply the stack featurization prototype detailed on AMBARI-13364 to ZOOKEEPER service plus the comments and reviews received on:

This patch removes the hardcoded stack versions and stack specific paths into ZK common-services code

stack_features is now a property in .json format in HDP/2.0.6/properties/stack_features.json
With the structure:

{ "stack_features": [ { "name": "feature1", "description" : "Feature1 support", "min_version" : "Y.Y.Y.Y" , "max_version" : "X.X.X.X"}

,
...
]
}
where min_version/max_version are optional constraints.

The upgrade constants, such has ROLLING_UPGRADE = "rolling_upgrade" has been added to in a new StackFeature in resource_management/libraries/functions/constants.py

Stack featurization was added as part of the HDP stack configurations on /HDP/2.0.6/configuration/cluster-env.xml, introducing a new stack_features property

New resource_management/libraries/functions/stack_fetaures.py has been introduced to parse the json file and called from service code to check if the stack supports the required feature.

Issue Links

• Blocked: AMBARI-13364 Parameterize stack information used by common services
• is depended upon by: AMBARI-14451 Parameterize distro-specific stack information for HDFS
• is related to: AMBARI-13364 Parameterize stack information used by common services
• links to: Review Board