Dinesh Kumar created SOLR-15023:
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Summary: Timeout Issue with Solr Metrics API
Key: SOLR-15023
URL: https://issues.apache.org/jira/browse/SOLR-15023
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Components: Admin UI, metrics
Affects Versions: 8.2
Reporter: Dinesh Kumar
Hi Team,
We are facing "connection lost error" in Solr admin page. While debugging, we
found an issue with admin/metrics API.
*Detail Analysis:*
We have around 200+ collections on a Solr cloud cluster which is having 4 Solr
nodes among which 3 are zookeeper+Solr nodes. Whenever I try to hit "cloud"
page on the Solr admin UI it results in "Connection to Solr lost" error in few
seconds.
When we tried to debug the same, we found Solr admin/metrics API that is called
internally is taking *20K ms* and leads to time out which results in Connection
to Solr lost. On the other hand, I tried to hit the same query separately on a
browser which still taking 20K ms but I get a proper response.
When the admin/metrics API call is happening from the admin console, the first
call is taking a too long time and finally fails to load the response. As a
result, concurrent multiple calls were made for the same API and throws
"Connection to Solr lost"
I could see the AdminHandlerProxy timeout warning in solr logs. Attached the
error msg from Solr logs:
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