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https://issues.apache.org/jira/browse/SOLR-8666?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Keith Laban updated SOLR-8666:
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Attachment: SOLR-8666.patch
Patch added
> Add header to SearchHandler to indicate whether solr is connection to zk
> ------------------------------------------------------------------------
>
> Key: SOLR-8666
> URL: https://issues.apache.org/jira/browse/SOLR-8666
> Project: Solr
> Issue Type: Improvement
> Reporter: Keith Laban
> Attachments: SOLR-8666.patch
>
>
> Currently solr update requests error out if a zookeeper check fails, however
> SearchHandler does not do these checks. As a result, if a request is sent to
> a node which should be part of a SolrCloud but is not connected to zookeeper
> and thinks that its Active, it's possible the response is composed of stale
> data.
> The purpose of this header is to allow the client to decide whether or not
> the result data should be considered valid.
> This patch also returns the {{zkConnected}} header in the ping handler to
> allow external health checks to use this information.
> See [SOLR-8599] for an example of when this situation can arise.
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