Andrzej Bialecki created SOLR-11779:
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Summary: Basic long-term collection of aggregated metrics
Key: SOLR-11779
URL: https://issues.apache.org/jira/browse/SOLR-11779
Project: Solr
Issue Type: New Feature
Security Level: Public (Default Security Level. Issues are Public)
Components: metrics
Affects Versions: master (8.0), 7.3
Reporter: Andrzej Bialecki
Assignee: Andrzej Bialecki
Tracking the key metrics over time is very helpful in understanding the cluster
and user behavior.
Currently even basic metrics tracking requires setting up an external system
and either polling {{/admin/metrics}} or using {{SolrMetricReporter}}-s. The
advantage of this setup is that these external tools usually provide a lot of
sophisticated functionality. The downside is that they don't ship out of the
box with Solr and require additional admin effort to set up.
Solr could collect some of the key metrics and keep their historical values in
a round-robin database (eg. using RRD4j) to keep the size of the historic data
constant (eg. ~64kB per metric), but at the same providing out of the box
useful insights into the basic system behavior over time. This data could be
persisted to the {{.system}} collection as blobs, and it could be also
presented in the Admin UI as graphs.
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