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From "Mike Drob (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SOLR-7734) MapReduce Indexer can error when using collection
Date Fri, 21 Aug 2015 14:24:45 GMT

     [ https://issues.apache.org/jira/browse/SOLR-7734?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mike Drob updated SOLR-7734:
----------------------------
    Attachment: SOLR-7734.branch5x.patch

Attached is an addendum patch for branch_5x to be applied on top of the original patch.

> MapReduce Indexer can error when using collection
> -------------------------------------------------
>
>                 Key: SOLR-7734
>                 URL: https://issues.apache.org/jira/browse/SOLR-7734
>             Project: Solr
>          Issue Type: Bug
>          Components: contrib - MapReduce
>    Affects Versions: 5.2.1
>            Reporter: Mike Drob
>            Assignee: Gregory Chanan
>             Fix For: Trunk, 5.4
>
>         Attachments: SOLR-7734.branch5x.patch, SOLR-7734.patch, SOLR-7734.patch, SOLR-7734.patch,
SOLR-7734.patch, SOLR-7734.patch, SOLR-7734.patch
>
>
> When running the MapReduceIndexerTool, it will usually pull a {{solrconfig.xml}} from
ZK for the collection that it is running against. This can be problematic for several reasons:
> * Performance: The configuration in ZK will likely have several query handlers, and lots
of other components that don't make sense in an indexing-only use of EmbeddedSolrServer (ESS).
> * Classpath Resources: If the Solr services are using some kind of additional service
(such as Sentry for auth) then the indexer will not have access to the necessary configurations
without the user jumping through several hoops.
> * Distinct Configuration Needs: Enabling Soft Commits on the ESS doesn't make sense.
There's other configurations that 
> * Update Chain Behaviours: I'm under the impression that UpdateChains may behave differently
in ESS than a SolrCloud cluster. Is it safe to depend on consistent behaviour here?



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