In trying to run a version of the SimpleIngestIndexWriter I ran into the following errors (one for each longitude and latitude):

15 Jul 11:35:05 WARN [util.DataStoreUtils] - Data writer of class class mil.nga.giat.geowave.adapter.vector.FeatureDataAdapter does not support field for 110.0
15 Jul 11:35:05 ERROR [vector.FeatureDataAdapter] - BasicWriter not found for binding type:double

Also, I had to grant table creation to the geowave user in the system namespace:

grant -s System.CREATE_TABLE -u geowave

Otherwise I get permission errors, even when I follow the Accumulo configuration instructions:

grant NameSpace.CREATE_TABLE -ns geowave -u geowave