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me.prettyprint.hector.api.exceptions.HInvalidRequestException: InvalidRequestException(why:(String didn't validate.) [webpage][f][ts] failed validation) at me.prettyprint.cassandra.service.ExceptionsTranslatorImpl.translate(ExceptionsTranslatorImpl.java:45) at me.prettyprint.cassandra.connection.HConnectionManager.operateWithFailover(HConnectionManager.java:264) at me.prettyprint.cassandra.model.ExecutingKeyspace.doExecuteOperation(ExecutingKeyspace.java:97) at me.prettyprint.cassandra.model.MutatorImpl.execute(MutatorImpl.java:243) at me.prettyprint.cassandra.model.MutatorImpl.insert(MutatorImpl.java:69) at org.apache.gora.cassandra.store.HectorUtils.insertColumn(HectorUtils.java:47) at org.apache.gora.cassandra.store.CassandraClient.addColumn(CassandraClient.java:169) at org.apache.gora.cassandra.store.CassandraStore.addOrUpdateField(CassandraStore.java:341) at org.apache.gora.cassandra.store.CassandraStore.flush(CassandraStore.java:228) at org.apache.gora.cassandra.store.CassandraStore.close(CassandraStore.java:95) at org.apache.gora.mapreduce.GoraRecordWriter.close(GoraRecordWriter.java:55) at org.apache.hadoop.mapred.MapTask$NewDirectOutputCollector.close(MapTask.java:651) at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:766) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370) at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:212)