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Posted to dev@ambari.apache.org by "Jonathan Hurley (JIRA)" <ji...@apache.org> on 2016/03/01 17:29:18 UTC
[jira] [Updated] (AMBARI-15058) Schema changes for component
history
[ https://issues.apache.org/jira/browse/AMBARI-15058?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jonathan Hurley updated AMBARI-15058:
-------------------------------------
Attachment: AMBARI-15058.patch
> Schema changes for component history
> ------------------------------------
>
> Key: AMBARI-15058
> URL: https://issues.apache.org/jira/browse/AMBARI-15058
> Project: Ambari
> Issue Type: Task
> Components: ambari-server
> Affects Versions: 2.4.0
> Reporter: Jonathan Hurley
> Assignee: Jonathan Hurley
> Priority: Critical
> Fix For: 2.4.0
>
> Attachments: AMBARI-15058.patch
>
>
> Create schema and entities to manage upgrade and downgrade history for components. Since we are pairing the upgrade/downgrade request with a component (and not a service) the associated table needs to be a 1:1 mapping with cluster component. Currently, the only table tracking this is the {{servicecomponentdesiredstate}}:
> {code}
> CREATE TABLE servicecomponent_history(
> id BIGINT NOT NULL,
> component_id BIGINT NOT NULL,
> upgrade_id BIGINT NOT NULL,
> from_stack_id BIGINT NOT NULL,
> to_stack_id BIGINT NOT NULL,
> CONSTRAINT PK_sc_history PRIMARY KEY (id),
> CONSTRAINT FK_sc_history_component_id FOREIGN KEY (component_id) REFERENCES servicecomponentdesiredstate (id),
> CONSTRAINT FK_sc_history_upgrade_id FOREIGN KEY (upgrade_id) REFERENCES upgrade (upgrade_id),
> CONSTRAINT FK_sc_history_from_stack_id FOREIGN KEY (from_stack_id) REFERENCES stack (stack_id),
> CONSTRAINT FK_sc_history_to_stack_id FOREIGN KEY (to_stack_id) REFERENCES stack (stack_id)
> );
> {code}
> The new {{servicecomponent_history}} will contain mostly FK's to other tables since the {{servicecomponentdesiredstate}} and the {{upgrade}} table contain all of the information needed. There's no need to data duplication.
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