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https://issues.apache.org/jira/browse/SOLR-15023?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dinesh Kumar updated SOLR-15023:
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Attachment: Error.pdf
> 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
> Priority: Major
> Attachments: Error.pdf
>
>
> Hi Team,
> We are facing "connection lost error" in Solr admin page. While debugging, we
> found an issue with admin/metrics API.
> *Detailed 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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