Mikhail Khludnev created SOLR-18475:
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Summary: when mertrics are disabled: 500 No metrics found in
response PrometheusResponseWriter.java
Key: SOLR-18475
URL: https://issues.apache.org/jira/browse/SOLR-18475
Project: Solr
Issue Type: Bug
Components: metrics
Affects Versions: 10.1
Reporter: Mikhail Khludnev
Assignee: Mikhail Khludnev
After metrics are disabled SOLR-18455 https://github.com/apache/solr/pull/4902
clicking to plugins in Admin UI leads to error in log
{code}
o.a.s.s.HttpSolrCall [admin] path=/admin/cores params={i
ndexInfo=false&wt=json&_=1790081652169} status=0 QTime=0
2026-09-22 12:54:20.820 ERROR (qtp1262607708-32-localhost-2615) [
t:localhost-2615] o.a.s.s.HttpSolrCall 500 Exception
java.io.IOException: No metrics found in response
at
org.apache.solr.response.PrometheusResponseWriter.write(PrometheusResponseWriter.java:66)
at
org.apache.solr.servlet.HttpSolrCall.writeResponse(HttpSolrCall.java:814)
at
org.apache.solr.servlet.HttpSolrCall.logAndFlushAdminRequest(HttpSolrCall.java:730)
at
org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:712)
at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:478)
at org.apache.solr.servlet.SolrServlet.dispatch(SolrServlet.java:114)
{code}
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