Matthew Biscocho

SOLR-10654: Introduce output of Prometheus metrics directly from Solr

17

https://issues.apache.org/jira/browse/SOLR-10654 # Description Introduce a new Prometheus response writer `/solr/admin/metrics?wt=prometheus` to output Dropwizards Solr Core registry metrics directly from Solr. Output looks similar to the prometheus exporter. This exports `solr.core.*`...

SOLR-16470: Create V2 equivalent of V1 Replication: Get files/{filePath}

2

https://issues.apache.org/jira/browse/SOLR-16470 # Description Create a V2 equivalent API for the replication "GET files/{filePath}" V1 `/solr/{coreName}/replication?command=filecontent&file=_0_Lucene99_0.tmd&wt=filestream` V2 `/api/cores/{coreName}/replication/files/{filePath}?dirType=file` Other sample requests `/api/cores/{coreName}/replication/files/./tlog.0000000000000000000?dirType=tlogFile` `/api/cores/{coreName}/replication/files/./solrconfig.xml?dirType=cf` # Solution Moved getFileStream() logic into ReplicationAPIBase class...

SOLR-17785: Integrate foundational OTEL meter instruments

7

Integrate OTEL into `SolrMetricManager` and `SolrMetricContext` and update the`wt=prometheus` endpoint to output Prometheus metrics from OTEL. This still keeps Dropwizard in parallel for now as removing many of its functions...

https://issues.apache.org/jira/browse/SOLR-17955 Splitshard disk space check was broken when switching the /admin/metrics api to prometheus. This fixes that by reading the parsed prometheus output.