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https://issues.apache.org/jira/browse/SOLR-8215?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14981223#comment-14981223
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Ishan Chattopadhyaya edited comment on SOLR-8215 at 10/29/15 8:41 PM:
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I'm just wondering if this would mean that if a replica gets marked as down
(due to bugs / by mistake), one wouldn't be able to issue core admin commands
to bring it back up if this patch (and please correct me if I misunderstand
this) short circuits the requests at the HttpSolrCall layer. One such command
is under discussion / development in SOLR-7569 (last few comments), which will
let the replica change its last published state. I'm not suggesting right away
that we don't do this, but do you have any thoughts around it (and recovery of
such replicas, in general)? Fyi, [[email protected]].
was (Author: ichattopadhyaya):
I'm just wondering if this would mean that if a replica gets marked as down
(due to bugs / by mistake), one wouldn't be able to issue core admin commands
to bring it back up if this patch (and please correct me if I misunderstand
this) short circuits the requests at the HttpSolrCall layer. One such command
is under discussion / development in SOLR-7569 (last few comments). I'm not
suggesting right away that we don't do this, but do you have any thoughts
around it? Fyi, [[email protected]].
> SolrCloud can select a core not in active state for querying
> ------------------------------------------------------------
>
> Key: SOLR-8215
> URL: https://issues.apache.org/jira/browse/SOLR-8215
> Project: Solr
> Issue Type: Bug
> Reporter: Varun Thacker
> Attachments: SOLR-8215.patch
>
>
> A query can be served by a core which is not in active state if the request
> hits the node which hosts these non active cores.
> We explicitly check for only active cores to search against in
> {{CloudSolrClient#sendRequest}} Line 1043 on trunk.
> But we don't check this if someone uses the REST APIs
> {{HttpSolrCall#getCoreByCollection}} should only pick cores which are active
> on line 794 on trunk.
> We however check it on line 882/883 in HttpSolrCall, when we try to find
> cores on other nodes when it's not present locally.
> So let's fix {{HttpSolrCall#getCoreByCollection}} to make the active check as
> well.
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