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https://issues.apache.org/jira/browse/SOLR-7705?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14621471#comment-14621471
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Edward Ribeiro edited comment on SOLR-7705 at 7/10/15 12:11 AM:
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Hi, I have attached a patch. Please, let me know what you think.
ps: the patch is against lucene_solr_5_0 since lucene_solr_4_10 involves some
more changes, but I can backport it to 4.9 too if you feel like doing it.
Cheers,
Eddie
was (Author: eribeiro):
Hi, I am have attached a patch. It's against lucene_solr_5_0 since
lucene_solr_4_10 involves some more changes, but I can backport it to 4.9 too
if you feel like doing it. Please, see if the patch fits.
> CoreAdminHandler Unload no longer handles null core name.
> ---------------------------------------------------------
>
> Key: SOLR-7705
> URL: https://issues.apache.org/jira/browse/SOLR-7705
> Project: Solr
> Issue Type: Bug
> Components: clients - java
> Affects Versions: 4.10, 5.0, 5.1, 5.2
> Environment: Windows 8 and Windows Server 2012 R2
> Reporter: John Call
> Priority: Minor
> Labels: easyfix
> Fix For: 4.10, 5.0, 5.1, 5.2, Trunk
>
> Attachments: SOLR-7705.patch
>
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> Pre 4.10 If a null core name was passed in it would be handled as a bad
> request with error message "No such core exists [ null ]". From 4.10 onwards
> an unload call goes to CoreContainer unload where the first action taken is
> removing the core from coreInitFailures which throws when given null and
> instead of returning the expected BadRequest "Cannot unload non-existent core
> [null]" it returns InternalServerError "java.lang.NullPointerException
> at java.util.concurrent.ConcurrentHashMap.replaceNode(Unknown Source)
> at java.util.concurrent.ConcurrentHashMap.remove(Unknown Source)
> at org.apache.solr.core.CoreContainer.unload(CoreContainer.java:661)..."
> This was found due to mixing up query parameter "name" used in create vs
> "core" in unload. As a result this is easily reproducible with
> http://localhost:8983/solr/admin/cores?action=UNLOAD&name=core0
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