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https://issues.apache.org/jira/browse/HDDS-8091?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDDS-8091:
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Labels: pull-request-available (was: )
> Generate list of config tags from ConfigTag enum
> ------------------------------------------------
>
> Key: HDDS-8091
> URL: https://issues.apache.org/jira/browse/HDDS-8091
> Project: Apache Ozone
> Issue Type: Improvement
> Reporter: Attila Doroszlai
> Assignee: Attila Doroszlai
> Priority: Major
> Labels: pull-request-available
>
> Configuration properties can be tagged as a way of grouping (HADOOP-15005).
> Tags can be used as a filter when browsing config on the web UI.
> While any string can be used as tag, the web UI only supports a [specific set
> of
> tags|https://github.com/apache/ozone/blob/66f394b3b5a257f3ac659568e14de1cbd5e7b9fc/hadoop-hdds/framework/src/main/java/org/apache/hadoop/hdds/conf/HddsConfServlet.java#L159-L162],
> defined by
> [{{ozone.tags.system}}|https://github.com/apache/ozone/blob/66f394b3b5a257f3ac659568e14de1cbd5e7b9fc/hadoop-hdds/common/src/main/resources/ozone-default.xml#L1347-L1350].
> To hook into Hadoop config tagging, the same value needs to be set as
> [{{hadoop.tags.custom}}|https://github.com/apache/ozone/blob/66f394b3b5a257f3ac659568e14de1cbd5e7b9fc/hadoop-hdds/common/src/main/resources/ozone-default.xml#L1342-L1345].
> {{ozone-default.xml}} also [lists config tags in a header comment as a
> hint|https://github.com/apache/ozone/blob/66f394b3b5a257f3ac659568e14de1cbd5e7b9fc/hadoop-hdds/common/src/main/resources/ozone-default.xml#L23-L25].
> Ozone also supports type-safe configuration annotated with {{@Config}}, which
> results in generated XML fragments. The annotation supports tags defined in
> the enum
> [{{ConfigTag}}|https://github.com/apache/ozone/blob/66f394b3b5a257f3ac659568e14de1cbd5e7b9fc/hadoop-hdds/config/src/main/java/org/apache/hadoop/hdds/conf/ConfigTag.java#L20-L25].
> All these result in [duplication and
> discrepancies|https://github.com/apache/ozone/pull/4332#pullrequestreview-1319578907]
> between the various lists of tags.
> I propose to:
> # use {{ConfigTag}} as the definitive source
> # remove {{ozone.tags.system}} and {{hadoop.tags.custom}} from
> {{ozone-default.xml}}
> # replace the header comment in {{ozone-default.xml}} with a reference to
> {{ConfigTag}}
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