we had an similiar problem running Accumulo 1.7.2 (parcel based) on CDH5. Unfortunately CDH5 bundles Accumul 1.6.0 jars by default.   Our workaround was to modify SPARK_DIST_CLASSPATH via Spark Service Advanced Configuration Snippet (Safety Valve) for spark-conf/spark-env.sh – Spark (Service-Wide) SPARK_DIST_CLASSPATH=/opt/cloudera/parcels/ACCUMULO/lib/accumulo/lib/accumulo-core.jar:$SPARK_DIST_CLASSPATH SPARK_DIST_CLASSPATH=/opt/cloudera/parcels/ACCUMULO/lib/accumulo/lib/accumulo-fate.jar:$SPARK_DIST_CLASSPATH SPARK_DIST_CLASSPATH=/opt/cloudera/parcels/ACCUMULO/lib/accumulo/lib/accumulo-start.jar:$SPARK_DIST_CLASSPATH SPARK_DIST_CLASSPATH=/opt/cloudera/parcels/ACCUMULO/lib/accumulo/lib/accumulo-trace.jar:$SPARK_DIST_CLASSPATH export SPARK_DIST_CLASSPATH This way you can add or redefine SPARK_DIST_CLASSPATH ... View more