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https://issues.apache.org/jira/browse/SOLR-17219?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17831914#comment-17831914
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Guillaume Jactat commented on SOLR-17219:
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I ran the same test with {*}Solr 9.0{*}: The problem doesn't occur.
> Exceptions occur while Solr reads some core's configset (java.io.IOException:
> Error opening /configs/<path to file>)
> --------------------------------------------------------------------------------------------------------------------
>
> Key: SOLR-17219
> URL: https://issues.apache.org/jira/browse/SOLR-17219
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: SolrCloud
> Affects Versions: 9.5.0
> Environment: My first attempts were on Windows via services hosted
> through procrun (both zookeeper and solr nodes). I also tried with a Docker
> Dekstop ensemble.
> It seems that this error occurs less frequently via Docker. But it happens
> anyway.
> Reporter: Guillaume Jactat
> Priority: Major
> Attachments: stack.txt
>
>
> Hello,
> I'm currently testing SolrCloud to get a better idea of how to recover from
> node failures.
> I have a simple configuration: one ZooKeeper server and 3 Solr nodes.
> I upload a configset in Zookeeper via Solr's Configsets API. I create 200
> collections, all bound to the same configset.
> I leave the collections empty for the moment.
> When I stop/start one node, the process of recovery happens. And almost
> everytime, i get the following error (full stack is attached to this issue):
> java.io.IOException: Error opening
> /configs/CoreModel–CB38FE6CFE/lang/stopwords_fi.txt
> Its not always the same configset's file. Sometimes, everything goes fine.
> But when this error occurs, the whole process of recovery seem compromised,
> leaving a lot of cores/collections "down". No "retry" happens, maybe because
> Solr assumes that the configset is wrong and no retry could fix it ?
> I've tried the same setup on Windows Service (procrun) and Docker Desktop
> containers. It seems that this error occurs less frequently with docker but
> it happens anyway.
> I didn't find anything close to this error on the web... I have no clue why
> this error happens.
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