Hi All,
I am using mahout recommendation with cassandra database. I am getting below error. Initially it was working well with all userids. We did couple of restart tomcat application and we started facing below error. I really need help on this and input will help. Also do we know how to find user in mahout schema using cassandra client. like get Users where rowKey = 10446;
Or get Users where rowKey = "00000000000028ce";
Error : --
org.apache.mahout.cf.taste.common.NoSuchUserException: 10186
at
org.apache.mahout.cf.taste.impl.model.cassandra.CassandraDataModel$UserPrefArrayRetriever.get(CassandraDataModel.java:387)
at
org.apache.mahout.cf.taste.impl.model.cassandra.CassandraDataModel$UserPrefArrayRetriever.get(CassandraDataModel.java:375)
at org.apache.mahout.cf.taste.impl.common.Cache.getAndCacheValue(Cache.java:156)
at org.apache.mahout.cf.taste.impl.common.Cache.get(Cache.java:95)
at
org.apache.mahout.cf.taste.impl.model.cassandra.CassandraDataModel.getPreferencesFromUser(CassandraDataModel.java:157)
at
org.apache.mahout.cf.taste.impl.recommender.GenericItemBasedRecommender.recommend(GenericItemBasedRecommender.java:122)
at com.sharpusa.edge.service.UserSpecificItemsService.getRecommendation(UserSpecificItemsService.java:85)