Mike Drob created SOLR-7734:
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Summary: 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
Fix For: 5.3, Trunk
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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