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https://issues.apache.org/jira/browse/SOLR-7302?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cassandra Targett resolved SOLR-7302.
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Resolution: Duplicate
Fix Version/s: (was: 5.1)
> Solr MapReduce contrib needs better documentation
> -------------------------------------------------
>
> Key: SOLR-7302
> URL: https://issues.apache.org/jira/browse/SOLR-7302
> Project: Solr
> Issue Type: Improvement
> Components: contrib - MapReduce
> Affects Versions: 4.10.4, 5.0
> Reporter: Taka
>
> The current REAME.txt contains the following instructions on this module. But
> I doubt it covers all commands as well as prerequisites/setups (e.g.
> morphlines required or not). In addition, we would need a little diagram to
> show all the dependencies such as morphlines (might need references to
> morphlines docs) and how this is related to the Solr-HDFS deployment in this
> wiki page
> (https://cwiki.apache.org/confluence/display/solr/Running+Solr+on+HDFS).
> In summary, better documentation would make this contrib module much easier
> to users new to Solr-HDFS-MR deployment.
> ----------------------------------------------------------------------
> Apache Solr MapReduce
> *Experimental* - This contrib is currently subject to change in ways that may
> break back compatibility.
> The Solr MapReduce contrib provides an a mapreduce job that allows you to
> build
> Solr indexes and optionally merge them into a live Solr cluster.
> Example:
> # Build an index with map-reduce and deploy it to SolrCloud
> source $solr_distrib/example/scripts/map-reduce/set-map-reduce-classpath.sh
> $hadoop_distrib/bin/hadoop --config $hadoop_conf_dir jar \
> $solr_distrib/dist/solr-map-reduce-*.jar -D 'mapred.child.java.opts=-Xmx500m'
> \
> -libjars "$HADOOP_LIBJAR" --morphline-file readAvroContainer.conf \
> --zk-host 127.0.0.1:9983 --output-dir hdfs://127.0.0.1:8020/outdir \
> --collection $collection --log4j log4j.properties --go-live \
> --verbose "hdfs://127.0.0.1:8020/indir"
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