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https://issues.apache.org/jira/browse/SOLR-9858?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrzej Bialecki updated SOLR-9858:
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Attachment: SOLR-9858.patch
Cumulative patch for this issue and SOLR-9857. I'd appreciate review.
A few notes on the design:
* for each replica a {{SolrReplicaReporter}} is created, which periodically
sends selected metrics to {{MetricsCollectorHandler}} running on shard leader.
These metrics are sent as regular SolrInputDocument-s, and they contain fields
that indicate the source reporter and the target registry where they are to be
collected and aggregated.
* for each node a {{SolrOverseerReporter}} is created, which periodically sends
selected metrics from selected registries to a node where Overseer leader is
located. {{MetricsColelctorHandler}} running on that node collects and
aggregates these metrics in "solr.overseer" registry.
Please consult javadoc for these classes for examples of configurations, as
well as {{SolrCloudReportersTest}} that shows what kind of reports are expected.
> Collect aggregated metrics from nodes and shard leaders in overseer
> -------------------------------------------------------------------
>
> Key: SOLR-9858
> URL: https://issues.apache.org/jira/browse/SOLR-9858
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: metrics
> Affects Versions: master (7.0)
> Reporter: Andrzej Bialecki
> Assignee: Andrzej Bialecki
> Priority: Minor
> Attachments: SOLR-9858.patch
>
>
> Overseer can collect metrics from Solr nodes and shard leaders in order to
> have a notion of the indexing / query / replication / system load on each
> node, shard and its replicas. This information then can be used for cluster
> (auto)scaling.
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