[HDDS-1490] Support configurable container placement policy through "ozone.scm.container.placement.classname"

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.4.1
• Labels: pull-request-available
• Target Version/s: 0.5.0
• Assignee: Sammi Chen
• Reporter: Sammi Chen
• Created: 05/May/19 07:00
• Updated: 18/Apr/23 19:32
• Resolved: 06/Jun/19 19:15

Description

Support system property "ozone.scm.container.placement.classname" in ozone-site.xml. User can specify the implementation class name as the value of the property. Here is an example,
<property>
<name>ozone.scm.container.placement.classname</name>
<value>org.apache.hadoop.hdds.scm.container.placement.algorithms.SCMContainerPlacementRackAware</value>ß
</property>

If this property is not set, then default org.apache.hadoop.hdds.scm.container.placement.algorithms.SCMContainerPlacementRackAware will be used.

Issue Links

• relates to: HDDS-8445 Move PlacementPolicy back to SCM
• links to: GitHub Pull Request #898
• links to: GitHub Pull Request #903