[
https://issues.apache.org/jira/browse/SOLR-8666?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15227408#comment-15227408
]
Hoss Man commented on SOLR-8666:
--------------------------------
I added an explanation of this to the ref guide, i would appreciate if folks
more intimately familiar with the issue would review & sanity check ... comment
on the page as needed...
https://cwiki.apache.org/confluence/display/solr/Read+and+Write+Side+Fault+Tolerance
> 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
> Assignee: Dennis Gove
> Fix For: master
>
> 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.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org
For additional commands, e-mail: dev-h...@lucene.apache.org
