The Solr contribs map-reduce, morphlines-cell and morphlines-core contain tests that are not being fixed: SOLR-6489 and SOLR-9220.
(Some subset of?) these components live in the Kite SDK: http://kitesdk.org - why are they also hosted in Solr?
Update to Hadoop 3
Update to Hadoop 2.7.2
morphlines-cell tests fail after upgrade to TIKA 1.6 or TIKA 1.7
mapreduce and morphlines-cell contribs have failing tests after Tika upgrade to 1.13
Maven test fails in solr/contrib/map-reduce
Solr map-reduce should try and turn on hard auto commit by default to deal with the transaction log.
AbstractSolrMorphlineTestBase has issues with BuddhistCalendar
MapReduce Indexer can error when using secure collection
MapReduceIndexerTool of solr 5.2.1 doesn't work with hadoop 2.7.1
Solr mapreduce doesn't work in kerberized environment
MapReduce contrib is using single core conf layout that no longer seems to work.
SolrCellMorphlineTest.testSolrCellDocumentTypes failures on jenkins
map-reduce index tool has timing bugs
After Solr 5.0, The script(set-map-reduce-classpath.sh) of MapReduceIndexTool should be made a change.
MapReduceIndexerTool uses 10^9 to convert nanos to seconds
MapReduce GoLive code improvements
MorphlineGoLiveMiniMRTest is failing about 50% of the time on my local Jenkins machine.
need ref guide doc on building indexes with mapreduce (morphlines-cell contrib)