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From "Commit Tag Bot (JIRA)" <>
Subject [jira] [Commented] (SOLR-4055) Remove/Reload the collection has the thread safe issue.
Date Sun, 11 Nov 2012 22:41:12 GMT


Commit Tag Bot commented on SOLR-4055:

[branch_4x commit] Mark Robert Miller

SOLR-4055: Remove tabs and format to Lucene convention

> Remove/Reload the collection has the thread safe issue.
> -------------------------------------------------------
>                 Key: SOLR-4055
>                 URL:
>             Project: Solr
>          Issue Type: Bug
>          Components: SolrCloud
>    Affects Versions: 4.0-ALPHA, 4.0-BETA, 4.0
>         Environment: Solr cloud
>            Reporter: Raintung Li
>            Assignee: Mark Miller
>             Fix For: 4.1, 5.0
>         Attachments: patch-4055
> OverseerCollectionProcessor class for collectionCmd method has thread safe issue.
> The major issue is ModifiableSolrParams params instance will deliver into other thread
use(HttpShardHandler.submit). Modify parameter will affect the other threads the correct parameter.
> In the method collectionCmd , change the value params.set(CoreAdminParams.CORE, node.getStr(ZkStateReader.CORE_NAME_PROP));
, that occur send the http request thread will get the wrong core name. The result is that
can't delete/reload the right core.
> The easy fix is clone the ModifiableSolrParams for every request.

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