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https://issues.apache.org/jira/browse/SOLR-14182?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17242285#comment-17242285
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Andrzej Bialecki commented on SOLR-14182:
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I'd like to start working on this. As I see it this issue needs to address the
following:
* mark {{solr.xml:/solr/metrics}} as deprecated and remove in 9.1.
* general metrics configuration (such as enable/disable, metric suppliers
options) should move to {{/clusterprops.json:/metrics}}
* metric reporters configuration should be moved to container-level plugins,
ie. {{/clusterprops.json:/plugin}} and the corresponding API. This will make
the reporters easier to configure and change dynamically without restarting
Solr nodes.
* precedence: {{MetricsConfig}} will be initialized from {{solr.xml}} as
before. Then, if any clusterprops configuration is present then it will REPLACE
the one from {{solr.xml}} - I don't want to attempt any fusion of these two,
and I think it's easier to migrate if you don't merge these configs. This
approach means that defining anything using the new locations will
automatically turn off the old {{solr.xml}} config.
> Move metric reporters config from solr.xml to ZK cluster properties
> -------------------------------------------------------------------
>
> Key: SOLR-14182
> URL: https://issues.apache.org/jira/browse/SOLR-14182
> Project: Solr
> Issue Type: Improvement
> Affects Versions: 8.4
> Reporter: Andrzej Bialecki
> Assignee: Andrzej Bialecki
> Priority: Major
>
> Metric reporters are currently configured statically in solr.xml, which makes
> it difficult to change dynamically or in a containerized environment.
> We should move this section to ZK /cluster.properties and add a back-compat
> migration shim.
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