nosql – 使用复合键插入cassandra列族
发布时间:2020-12-13 13:29:39 所属栏目:百科 来源:网络整理
导读:我有一个列族AllLog创建它 create column family LogData with column_type = 'Standard' and comparator = 'CompositeType(org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.UTF8Type)' and default_validation_class = 'UTF8Typ
我有一个列族AllLog创建它
create column family LogData with column_type = 'Standard' and comparator = 'CompositeType(org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.UTF8Type)' and default_validation_class = 'UTF8Type' and key_validation_class = 'CompositeType(UTF8Type,UTF8Type)'; 但是当我使用mutator插入时: String key0 = "key0"; String key1 = "key1"; Composite compositeKey = new Composite(); compositeKey.addComponent(key0,StringSerializer.get()); compositeKey.addComponent(key1,StringSerializer.get()); // add mutator.addInsertion(compositeKey,columnFamilyName,HFactory.createColumn("name","value")); mutator.execute(); 总是通过例外: me.prettyprint.hector.api.exceptions.HInvalidRequestException: InvalidRequestException(why:Not enough bytes to read value of component 0) 请有人帮助我,这段代码中的错误在哪里? 解决方法
模式将比较器指定为复合类型,但插入会创建一个包含单个字符串(“name”)的列.
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